---
_id: '2577'
abstract:
- lang: eng
text: " In the context of the energy transition to renewables,
the spotlight is on large systems connected to the power grid, but this also offers
room for smaller, more specialized applications. Photovoltaics, in particular,
offer the possibility of the self-sufficient supply of smaller electrical appliances
on smaller scales. The idea of making previously unused surfaces usable is by
no means new, and textiles such as backpacks, tent tarpaulins and other covers
are particularly suitable for this purpose. In order to create a non-toxic and
easily recyclable product, dye-sensitized solar cells (DSSC), which can be manufactured
through electrospinning with a textile feel, are an attractive option here. Therefore,
this paper investigates a needle electrospun nanofiber mat, whose spin solution
contains polyacrylonitrile (PAN) dissolved in dimethyl sulfoxide (DMSO) as well
es TiO2 nanoparticles. In addition to characterization, the nanofiber mat was
dyed in a solution containing anthocyanins to later serve as a front electrode
for a dye-sensitized solar cell. Although of lower efficiency, the DSSC provides
stable results over two months of measurement.\r\n "
article_type: original
author:
- first_name: Marius
full_name: Dotter, Marius
id: '242889'
last_name: Dotter
orcid: 0000-0001-8398-1809
- first_name: Lion Lukas
full_name: Placke, Lion Lukas
last_name: Placke
- first_name: Jan Lukas
full_name: Storck, Jan Lukas
id: '221157'
last_name: Storck
orcid: 0000-0002-6841-8791
- first_name: Uwe
full_name: Güth, Uwe
last_name: Güth
citation:
alphadin: 'Dotter, Marius ; Placke, Lion Lukas ; Storck,
Jan Lukas ; Güth, Uwe: Characterization
of PAN-TiO2 Nanofiber Mats and their Application as Front Electrodes for Dye-sensitized
Solar Cells. In: Tekstilec Bd. 65, University of Ljubljana (2023), Nr. 4,
S. 298–306'
ama: Dotter M, Placke LL, Storck JL, Güth U. Characterization of PAN-TiO2 Nanofiber
Mats and their Application as Front Electrodes for Dye-sensitized Solar Cells.
Tekstilec. 2023;65(4):298-306. doi:10.14502/tekstilec.65.2022081
apa: Dotter, M., Placke, L. L., Storck, J. L., & Güth, U. (2023). Characterization
of PAN-TiO2 Nanofiber Mats and their Application as Front Electrodes for Dye-sensitized
Solar Cells. Tekstilec, 65(4), 298–306. https://doi.org/10.14502/tekstilec.65.2022081
bibtex: '@article{Dotter_Placke_Storck_Güth_2023, title={Characterization of PAN-TiO2
Nanofiber Mats and their Application as Front Electrodes for Dye-sensitized Solar
Cells}, volume={65}, DOI={10.14502/tekstilec.65.2022081},
number={4}, journal={Tekstilec}, publisher={University of Ljubljana}, author={Dotter,
Marius and Placke, Lion Lukas and Storck, Jan Lukas and Güth, Uwe}, year={2023},
pages={298–306} }'
chicago: 'Dotter, Marius, Lion Lukas Placke, Jan Lukas Storck, and Uwe Güth. “Characterization
of PAN-TiO2 Nanofiber Mats and Their Application as Front Electrodes for Dye-Sensitized
Solar Cells.” Tekstilec 65, no. 4 (2023): 298–306. https://doi.org/10.14502/tekstilec.65.2022081.'
ieee: M. Dotter, L. L. Placke, J. L. Storck, and U. Güth, “Characterization of PAN-TiO2
Nanofiber Mats and their Application as Front Electrodes for Dye-sensitized Solar
Cells,” Tekstilec, vol. 65, no. 4, pp. 298–306, 2023.
mla: Dotter, Marius, et al. “Characterization of PAN-TiO2 Nanofiber Mats and Their
Application as Front Electrodes for Dye-Sensitized Solar Cells.” Tekstilec,
vol. 65, no. 4, University of Ljubljana, 2023, pp. 298–306, doi:10.14502/tekstilec.65.2022081.
short: M. Dotter, L.L. Placke, J.L. Storck, U. Güth, Tekstilec 65 (2023) 298–306.
date_created: 2023-03-10T14:44:25Z
date_updated: 2023-05-12T08:54:45Z
doi: 10.14502/tekstilec.65.2022081
file:
- access_level: open_access
content_type: application/pdf
creator: mdotter
date_created: 2023-03-10T14:42:20Z
date_updated: 2023-03-10T14:42:20Z
file_id: '2582'
file_name: 10.14502Tekstilec2022.65.2022081.pdf
file_size: 514696
relation: main_file
success: 1
file_date_updated: 2023-03-10T14:42:20Z
has_accepted_license: '1'
intvolume: ' 65'
issue: '4'
keyword:
- dye-sensitized solar cells (DSSC)
- long-term stability
- electrospinning
- polyacrylonitrile (PAN)
- TiO2 nanoparticles
language:
- iso: eng
oa: '1'
page: 298-306
publication: Tekstilec
publication_identifier:
eissn:
- 2350-3696
issn:
- 0351-3386
publication_status: published
publisher: University of Ljubljana
status: public
title: Characterization of PAN-TiO2 Nanofiber Mats and their Application as Front
Electrodes for Dye-sensitized Solar Cells
tmp:
image: /images/cc_by_sa.png
legal_code_url: https://creativecommons.org/licenses/by-sa/4.0/legalcode
name: Creative Commons Attribution-ShareAlike 4.0 International Public License (CC
BY-SA 4.0)
short: CC BY-SA (4.0)
type: journal_article
user_id: '216459'
volume: 65
year: '2023'
...
---
_id: '2019'
abstract:
- lang: eng
text: " Electrospinning is often investigated for biotechnological
applications, such as tissue engineering and cell growth in general. In many cases,
three-dimensional scaffolds would be advantageous to prepare tissues in a desired
shape. Some studies thus investigated 3D-printed scaffolds decorated with electrospun
nanofibers. Here, we report on the influence of 3D-printed substrates on fiber
orientation and diameter of a nanofiber mat, directly electrospun on conductive
and isolating 3D-printed objects, and show the effect of shadowing, taking 3D-printed
ears with electrospun nanofiber mats as an example for potential and direct application
in tissue engineering in general.\r\n "
article_number: '66'
article_type: original
author:
- first_name: Laura
full_name: Bauer, Laura
last_name: Bauer
- first_name: Lisa
full_name: Brandstäter, Lisa
last_name: Brandstäter
- first_name: Mika
full_name: Letmate, Mika
last_name: Letmate
- first_name: Manasi
full_name: Palachandran, Manasi
last_name: Palachandran
- first_name: Fynn Ole
full_name: Wadehn, Fynn Ole
last_name: Wadehn
- first_name: Carlotta
full_name: Wolfschmidt, Carlotta
last_name: Wolfschmidt
- first_name: Timo
full_name: Grothe, Timo
id: '221330'
last_name: Grothe
orcid: 0000-0002-9099-4277
- first_name: Uwe
full_name: Güth, Uwe
last_name: Güth
- first_name: Andrea
full_name: Ehrmann, Andrea
id: '223776'
last_name: Ehrmann
orcid: 0000-0003-0695-3905
citation:
alphadin: 'Bauer,
Laura ; Brandstäter, Lisa
; Letmate, Mika ; Palachandran,
Manasi ; Wadehn, Fynn Ole
; Wolfschmidt, Carlotta ; Grothe, Timo ; Güth,
Uwe ; u. a.: Electrospinning for the Modification of 3D Objects
for the Potential Use in Tissue Engineering. In: Technologies Bd. 10, MDPI
AG (2022), Nr. 3'
ama: Bauer L, Brandstäter L, Letmate M, et al. Electrospinning for the Modification
of 3D Objects for the Potential Use in Tissue Engineering. Technologies.
2022;10(3). doi:10.3390/technologies10030066
apa: Bauer, L., Brandstäter, L., Letmate, M., Palachandran, M., Wadehn, F. O., Wolfschmidt,
C., … Ehrmann, A. (2022). Electrospinning for the Modification of 3D Objects for
the Potential Use in Tissue Engineering. Technologies, 10(3). https://doi.org/10.3390/technologies10030066
bibtex: '@article{Bauer_Brandstäter_Letmate_Palachandran_Wadehn_Wolfschmidt_Grothe_Güth_Ehrmann_2022,
title={Electrospinning for the Modification of 3D Objects for the Potential Use
in Tissue Engineering}, volume={10}, DOI={10.3390/technologies10030066},
number={366}, journal={Technologies}, publisher={MDPI AG}, author={Bauer, Laura
and Brandstäter, Lisa and Letmate, Mika and Palachandran, Manasi and Wadehn, Fynn
Ole and Wolfschmidt, Carlotta and Grothe, Timo and Güth, Uwe and Ehrmann, Andrea},
year={2022} }'
chicago: Bauer, Laura, Lisa Brandstäter, Mika Letmate, Manasi Palachandran, Fynn
Ole Wadehn, Carlotta Wolfschmidt, Timo Grothe, Uwe Güth, and Andrea Ehrmann. “Electrospinning
for the Modification of 3D Objects for the Potential Use in Tissue Engineering.”
Technologies 10, no. 3 (2022). https://doi.org/10.3390/technologies10030066.
ieee: L. Bauer et al., “Electrospinning for the Modification of 3D Objects
for the Potential Use in Tissue Engineering,” Technologies, vol. 10, no.
3, 2022.
mla: Bauer, Laura, et al. “Electrospinning for the Modification of 3D Objects for
the Potential Use in Tissue Engineering.” Technologies, vol. 10, no. 3,
66, MDPI AG, 2022, doi:10.3390/technologies10030066.
short: L. Bauer, L. Brandstäter, M. Letmate, M. Palachandran, F.O. Wadehn, C. Wolfschmidt,
T. Grothe, U. Güth, A. Ehrmann, Technologies 10 (2022).
date_created: 2022-07-14T17:39:48Z
date_updated: 2024-03-27T14:01:14Z
doi: 10.3390/technologies10030066
file:
- access_level: open_access
content_type: application/pdf
creator: aehrmann
date_created: 2022-07-14T17:39:01Z
date_updated: 2022-07-14T17:39:01Z
file_id: '2020'
file_name: _2022_Bauer_Technologies10_66v2.pdf
file_size: 12036821
relation: main_file
success: 1
file_date_updated: 2022-07-14T17:39:01Z
has_accepted_license: '1'
intvolume: ' 10'
issue: '3'
keyword:
- needleless electrospinning
- poly(lactic acid) (PLA)
- poly(acrylonitrile) (PAN)
- nanospider
- cell adhesion
- cell proliferation
- 3D printing
language:
- iso: eng
oa: '1'
publication: Technologies
publication_identifier:
eissn:
- 2227-7080
publication_status: published
publisher: MDPI AG
quality_controlled: '1'
status: public
title: Electrospinning for the Modification of 3D Objects for the Potential Use in
Tissue Engineering
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
urn: urn:nbn:de:hbz:bi10-20192
user_id: '216459'
volume: 10
year: '2022'
...
---
_id: '1081'
abstract:
- lang: eng
text: " Polyacrylonitrile (PAN) nanofiber mats are typical precursors
for carbon nanofibers. They can be fixed or even elongated during stabilization
and subsequent carbonization to gain straight, mechanically robust carbon nanofibers.
These processes necessitate additional equipment or are—if the nanofiber mats
are just fixed at the edges—prone to resulting in the specimens breaking, due
to an uneven force distribution. Hence, we showed in a previous study that electrospinning
PAN on aluminum foils and stabilizing them fixed on these substrates, is a suitable
solution to keep the desired morphology after stabilization and incipient carbonization.
Here, we report on the influence of different metallic and semiconductor substrates
on the physical and chemical properties of the nanofiber mats after stabilization
and carbonization at temperatures up to 1200 °C. For stabilization on a metal
substrate, an optimum stabilization temperature of slightly above 240 °C was found,
approached with a heating rate of 0.25 K/min. Independent from the substrate material,
SEM images revealed less defect fibers in the nanofiber mats stabilized and incipiently
carbonized on a metal foil. Finally, high-temperature carbonization on different
substrates is shown to allow for producing metal/carbon nano-composites.\r\n "
alternative_id:
- '1625'
- '2650'
article_number: '12'
article_type: original
author:
- first_name: Jan Lukas
full_name: Storck, Jan Lukas
id: '221157'
last_name: Storck
orcid: 0000-0002-6841-8791
orcid_put_code_url: https://api.orcid.org/v2.0/0000-0002-6841-8791/work/95037509
- first_name: Bennet
full_name: Brockhagen, Bennet
id: '237316'
last_name: Brockhagen
- first_name: Timo
full_name: Grothe, Timo
id: '221330'
last_name: Grothe
orcid: 0000-0002-9099-4277
orcid_put_code_url: https://api.orcid.org/v2.0/0000-0002-9099-4277/work/94758815
- first_name: Lilia
full_name: Sabantina, Lilia
last_name: Sabantina
- first_name: Bernhard
full_name: Kaltschmidt, Bernhard
last_name: Kaltschmidt
- first_name: Khorolsuren
full_name: Tuvshinbayar, Khorolsuren
id: '222971'
last_name: Tuvshinbayar
- first_name: Laura
full_name: Braun, Laura
last_name: Braun
- first_name: Ewin
full_name: Tanzli, Ewin
last_name: Tanzli
- first_name: Andreas
full_name: Hütten, Andreas
last_name: Hütten
- first_name: Andrea
full_name: Ehrmann, Andrea
id: '223776'
last_name: Ehrmann
orcid: 0000-0003-0695-3905
orcid_put_code_url: https://api.orcid.org/v2.0/0000-0003-0695-3905/work/94758817
citation:
alphadin: 'Storck,
Jan Lukas ; Brockhagen, Bennet
; Grothe, Timo ; Sabantina,
Lilia ; Kaltschmidt, Bernhard
; Tuvshinbayar, Khorolsuren ; Braun, Laura ; Tanzli,
Ewin ; u. a.: Stabilization and Carbonization of PAN Nanofiber Mats
Electrospun on Metal Substrates. In: C Bd. 7, MDPI AG (2021), Nr. 1'
ama: Storck JL, Brockhagen B, Grothe T, et al. Stabilization and Carbonization of
PAN Nanofiber Mats Electrospun on Metal Substrates. C. 2021;7(1). doi:10.3390/c7010012
apa: Storck, J. L., Brockhagen, B., Grothe, T., Sabantina, L., Kaltschmidt, B.,
Tuvshinbayar, K., … Ehrmann, A. (2021). Stabilization and Carbonization of PAN
Nanofiber Mats Electrospun on Metal Substrates. C, 7(1). https://doi.org/10.3390/c7010012
bibtex: '@article{Storck_Brockhagen_Grothe_Sabantina_Kaltschmidt_Tuvshinbayar_Braun_Tanzli_Hütten_Ehrmann_2021,
title={Stabilization and Carbonization of PAN Nanofiber Mats Electrospun on Metal
Substrates}, volume={7}, DOI={10.3390/c7010012},
number={112}, journal={C}, publisher={MDPI AG}, author={Storck, Jan Lukas and
Brockhagen, Bennet and Grothe, Timo and Sabantina, Lilia and Kaltschmidt, Bernhard
and Tuvshinbayar, Khorolsuren and Braun, Laura and Tanzli, Ewin and Hütten, Andreas
and Ehrmann, Andrea}, year={2021} }'
chicago: Storck, Jan Lukas, Bennet Brockhagen, Timo Grothe, Lilia Sabantina, Bernhard
Kaltschmidt, Khorolsuren Tuvshinbayar, Laura Braun, Ewin Tanzli, Andreas Hütten,
and Andrea Ehrmann. “Stabilization and Carbonization of PAN Nanofiber Mats Electrospun
on Metal Substrates.” C 7, no. 1 (2021). https://doi.org/10.3390/c7010012.
ieee: J. L. Storck et al., “Stabilization and Carbonization of PAN Nanofiber
Mats Electrospun on Metal Substrates,” C, vol. 7, no. 1, 2021.
mla: Storck, Jan Lukas, et al. “Stabilization and Carbonization of PAN Nanofiber
Mats Electrospun on Metal Substrates.” C, vol. 7, no. 1, 12, MDPI AG, 2021,
doi:10.3390/c7010012.
short: J.L. Storck, B. Brockhagen, T. Grothe, L. Sabantina, B. Kaltschmidt, K. Tuvshinbayar,
L. Braun, E. Tanzli, A. Hütten, A. Ehrmann, C 7 (2021).
date_created: 2021-05-31T18:59:11Z
date_updated: 2023-10-04T13:12:28Z
doi: 10.3390/c7010012
intvolume: ' 7'
issue: '1'
keyword:
- polyacrylonitrile (PAN)
- nanofibers
- electrospinning
- aluminum
- copper
- tin
- titanium
- silicon wafer
- steel
- stabilization and carbonization
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.3390/c7010012
oa: '1'
publication: C
publication_identifier:
eissn:
- 2311-5629
publication_status: published
publisher: MDPI AG
quality_controlled: '1'
status: public
title: Stabilization and Carbonization of PAN Nanofiber Mats Electrospun on Metal
Substrates
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: '245590'
volume: 7
year: '2021'
...
---
_id: '1615'
abstract:
- lang: eng
text: " Two-dimensional structures, either periodic or random,
can be classified by diverse mathematical methods. Quantitative descriptions of
such surfaces, however, are scarce since bijective definitions must be found to
measure unique dependency between described structures and the chosen quantitative
parameters. To solve this problem, we use statistical analysis of periodic fibrous
structures by Hurst exponent distributions. Although such a Hurst exponent approach
was suggested some years ago, the quantitative analysis of atomic force microscopy
(AFM) images of nanofiber mats in such a way was described only recently. In this
paper, we discuss the influence of typical AFM image post-processing steps on
the gray-scale-resolved Hurst exponent distribution. Examples of these steps are
polynomial background subtraction, aligning rows, deleting horizontal errors and
sharpening. Our results show that while characteristic features of these false-color
images may be shifted in terms of gray-channel and Hurst exponent, they can still
be used to identify AFM images and, in the next step, to quantitatively describe
AFM images of nanofibrous surfaces. Such a gray-channel approach can be regarded
as a simple way to include some information about the 3D structure of the image.\r\n
\ "
article_number: '2436'
article_type: original
author:
- first_name: Tomasz
full_name: Blachowicz, Tomasz
last_name: Blachowicz
- first_name: Krzysztof
full_name: Domino, Krzysztof
last_name: Domino
- first_name: Michał
full_name: Koruszowic, Michał
last_name: Koruszowic
- first_name: Jacek
full_name: Grzybowski, Jacek
last_name: Grzybowski
- first_name: Tobias
full_name: Böhm, Tobias
last_name: Böhm
- first_name: Andrea
full_name: Ehrmann, Andrea
id: '223776'
last_name: Ehrmann
orcid: 0000-0003-0695-3905
orcid_put_code_url: https://api.orcid.org/v2.0/0000-0003-0695-3905/work/105571808
citation:
alphadin: 'Blachowicz, Tomasz ; Domino, Krzysztof ; Koruszowic,
Michał ; Grzybowski, Jacek
; Böhm, Tobias ; Ehrmann,
Andrea: Statistical Analysis of Nanofiber Mat AFM Images by Gray-Scale-Resolved
Hurst Exponent Distributions. In: Applied Sciences Bd. 11, MDPI AG (2021),
Nr. 5'
ama: Blachowicz T, Domino K, Koruszowic M, Grzybowski J, Böhm T, Ehrmann A. Statistical
Analysis of Nanofiber Mat AFM Images by Gray-Scale-Resolved Hurst Exponent Distributions.
Applied Sciences. 2021;11(5). doi:10.3390/app11052436
apa: Blachowicz, T., Domino, K., Koruszowic, M., Grzybowski, J., Böhm, T., &
Ehrmann, A. (2021). Statistical Analysis of Nanofiber Mat AFM Images by Gray-Scale-Resolved
Hurst Exponent Distributions. Applied Sciences, 11(5). https://doi.org/10.3390/app11052436
bibtex: '@article{Blachowicz_Domino_Koruszowic_Grzybowski_Böhm_Ehrmann_2021, title={Statistical
Analysis of Nanofiber Mat AFM Images by Gray-Scale-Resolved Hurst Exponent Distributions},
volume={11}, DOI={10.3390/app11052436},
number={52436}, journal={Applied Sciences}, publisher={MDPI AG}, author={Blachowicz,
Tomasz and Domino, Krzysztof and Koruszowic, Michał and Grzybowski, Jacek and
Böhm, Tobias and Ehrmann, Andrea}, year={2021} }'
chicago: Blachowicz, Tomasz, Krzysztof Domino, Michał Koruszowic, Jacek Grzybowski,
Tobias Böhm, and Andrea Ehrmann. “Statistical Analysis of Nanofiber Mat AFM Images
by Gray-Scale-Resolved Hurst Exponent Distributions.” Applied Sciences
11, no. 5 (2021). https://doi.org/10.3390/app11052436.
ieee: T. Blachowicz, K. Domino, M. Koruszowic, J. Grzybowski, T. Böhm, and A. Ehrmann,
“Statistical Analysis of Nanofiber Mat AFM Images by Gray-Scale-Resolved Hurst
Exponent Distributions,” Applied Sciences, vol. 11, no. 5, 2021.
mla: Blachowicz, Tomasz, et al. “Statistical Analysis of Nanofiber Mat AFM Images
by Gray-Scale-Resolved Hurst Exponent Distributions.” Applied Sciences,
vol. 11, no. 5, 2436, MDPI AG, 2021, doi:10.3390/app11052436.
short: T. Blachowicz, K. Domino, M. Koruszowic, J. Grzybowski, T. Böhm, A. Ehrmann,
Applied Sciences 11 (2021).
date_created: 2022-01-01T14:26:57Z
date_updated: 2022-01-01T15:01:53Z
department:
- _id: '103'
doi: 10.3390/app11052436
intvolume: ' 11'
issue: '5'
keyword:
- Hurst exponent distribution
- random walk
- atomic force microscopy (AFM)
- electrospinning
- poly(acrylonitrile) (PAN)
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.3390/app11052436
oa: '1'
publication: Applied Sciences
publication_identifier:
eissn:
- 2076-3417
publication_status: published
publisher: MDPI AG
quality_controlled: '1'
status: public
title: Statistical Analysis of Nanofiber Mat AFM Images by Gray-Scale-Resolved Hurst
Exponent Distributions
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: '223776'
volume: 11
year: '2021'
...
---
_id: '1617'
abstract:
- lang: eng
text: ' Electrospinning can be used to prepare nanofibers from
various polymers and polymer blends. The adhesion of nanofibers to the substrates
on which they are electrospun varies greatly with the substrate material and structure.
In some cases, good adhesion is desired to produce sandwich structures by electrospinning
one material directly onto another. This is the case, e.g., with dye-sensitized
solar cells (DSSCs). While both pure foil DSSCs and pure electrospun DSSCs have
been examined, a combination of both technologies can be used to combine their
advantages, e.g., the lateral strength of foils with the large surface-to-volume
ratio of electrospun nanofibers. Here, we investigate the morphology and adhesion
of electrospun nanofibers on different foil substrates containing materials commonly
used in DSSCs, such as graphite, poly(3,4-ethylenedioxythiophene) polystyrene
sulfonate (PEDOT:PSS) or TiO2. The results show that the foil material strongly
influences the adhesion, while a plasma pretreatment of the foils showed no significant
effect. Moreover, it is well known that conductive substrates can alter the morphology
of nanofiber mats, both at microscopic and macroscopic levels. However, these
effects could not be observed in the current study.'
article_number: '249'
article_type: original
author:
- first_name: Christian
full_name: Hellert, Christian
last_name: Hellert
- first_name: Martin
full_name: Wortmann, Martin
last_name: Wortmann
- first_name: Natalie
full_name: Frese, Natalie
last_name: Frese
- first_name: Georg
full_name: Grötsch, Georg
last_name: Grötsch
- first_name: Carsten
full_name: Cornelißen, Carsten
last_name: Cornelißen
- first_name: Andrea
full_name: Ehrmann, Andrea
id: '223776'
last_name: Ehrmann
orcid: 0000-0003-0695-3905
orcid_put_code_url: https://api.orcid.org/v2.0/0000-0003-0695-3905/work/105571772
citation:
alphadin: 'Hellert, Christian ; Wortmann, Martin ; Frese,
Natalie ; Grötsch, Georg
; Cornelißen, Carsten ; Ehrmann,
Andrea: Adhesion of Electrospun Poly(acrylonitrile) Nanofibers on Conductive
and Isolating Foil Substrates. In: Coatings Bd. 11, MDPI AG (2021), Nr. 2'
ama: Hellert C, Wortmann M, Frese N, Grötsch G, Cornelißen C, Ehrmann A. Adhesion
of Electrospun Poly(acrylonitrile) Nanofibers on Conductive and Isolating Foil
Substrates. Coatings. 2021;11(2). doi:10.3390/coatings11020249
apa: Hellert, C., Wortmann, M., Frese, N., Grötsch, G., Cornelißen, C., & Ehrmann,
A. (2021). Adhesion of Electrospun Poly(acrylonitrile) Nanofibers on Conductive
and Isolating Foil Substrates. Coatings, 11(2). https://doi.org/10.3390/coatings11020249
bibtex: '@article{Hellert_Wortmann_Frese_Grötsch_Cornelißen_Ehrmann_2021, title={Adhesion
of Electrospun Poly(acrylonitrile) Nanofibers on Conductive and Isolating Foil
Substrates}, volume={11}, DOI={10.3390/coatings11020249},
number={2249}, journal={Coatings}, publisher={MDPI AG}, author={Hellert, Christian
and Wortmann, Martin and Frese, Natalie and Grötsch, Georg and Cornelißen, Carsten
and Ehrmann, Andrea}, year={2021} }'
chicago: Hellert, Christian, Martin Wortmann, Natalie Frese, Georg Grötsch, Carsten
Cornelißen, and Andrea Ehrmann. “Adhesion of Electrospun Poly(Acrylonitrile) Nanofibers
on Conductive and Isolating Foil Substrates.” Coatings 11, no. 2 (2021).
https://doi.org/10.3390/coatings11020249.
ieee: C. Hellert, M. Wortmann, N. Frese, G. Grötsch, C. Cornelißen, and A. Ehrmann,
“Adhesion of Electrospun Poly(acrylonitrile) Nanofibers on Conductive and Isolating
Foil Substrates,” Coatings, vol. 11, no. 2, 2021.
mla: Hellert, Christian, et al. “Adhesion of Electrospun Poly(Acrylonitrile) Nanofibers
on Conductive and Isolating Foil Substrates.” Coatings, vol. 11, no. 2,
249, MDPI AG, 2021, doi:10.3390/coatings11020249.
short: C. Hellert, M. Wortmann, N. Frese, G. Grötsch, C. Cornelißen, A. Ehrmann,
Coatings 11 (2021).
date_created: 2022-01-01T14:28:54Z
date_updated: 2022-01-01T15:01:07Z
department:
- _id: '103'
doi: 10.3390/coatings11020249
intvolume: ' 11'
issue: '2'
keyword:
- electrospinning
- polyacrylonitrile (PAN)
- nanofibers
- conductive foils
- adhesion
- dye-sensitized solar cells (DSSCs)
- fiber orientation
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.3390/coatings11020249
oa: '1'
publication: Coatings
publication_identifier:
eissn:
- 2079-6412
publication_status: published
publisher: MDPI AG
quality_controlled: '1'
status: public
title: Adhesion of Electrospun Poly(acrylonitrile) Nanofibers on Conductive and Isolating
Foil Substrates
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: '223776'
volume: 11
year: '2021'
...
---
_id: '670'
abstract:
- lang: eng
text: Polyacrylonitrile (PAN) nanofibers, prepared by electrospinning, are
often used as a precursor for carbon nanofibers. The thermal carbonization process
necessitates a preceding oxidative stabilization, which is usually performed thermally,
i.e., by carefully heating the electrospun nanofibers in an oven. One of the typical
problems occurring during this process is a strong deformation of the fiber morphologies—the
fibers become thicker and shorter, and show partly undesired conglutinations.
This problem can be solved by stretching the nanofiber mat during thermal treatment,
which, on the other hand, can lead to breakage of the nanofiber mat. In a previous
study, we have shown that the electrospinning of PAN on aluminum foils and the
subsequent stabilization of this substrate is a simple method for retaining the
fiber morphology without breaking the nanofiber mat. Here, we report on the impact
of different aluminum foils on the physical and chemical properties of stabilized
PAN nanofibers mats, and on the following incipient carbonization process at a
temperature of max. 600 °C, i.e., below the melting temperature of aluminum.
article_number: '55'
article_type: original
author:
- first_name: Jan Lukas
full_name: Storck, Jan Lukas
id: '221157'
last_name: Storck
orcid: 0000-0002-6841-8791
orcid_put_code_url: https://api.orcid.org/v2.0/0000-0002-6841-8791/work/95037502
- first_name: Timo
full_name: Grothe, Timo
id: '221330'
last_name: Grothe
orcid: 0000-0002-9099-4277
orcid_put_code_url: https://api.orcid.org/v2.0/0000-0002-9099-4277/work/94763647
- first_name: Khorolsuren
full_name: Tuvshinbayar, Khorolsuren
last_name: Tuvshinbayar
- first_name: Elise
full_name: Diestelhorst, Elise
last_name: Diestelhorst
- first_name: Daria
full_name: Wehlage, Daria
last_name: Wehlage
- first_name: Bennet
full_name: Brockhagen, Bennet
id: '237316'
last_name: Brockhagen
- first_name: Martin
full_name: Wortmann, Martin
last_name: Wortmann
- first_name: Natalie
full_name: Frese, Natalie
last_name: Frese
- first_name: Andrea
full_name: Ehrmann, Andrea
id: '223776'
last_name: Ehrmann
orcid: 0000-0003-0695-3905
orcid_put_code_url: https://api.orcid.org/v2.0/0000-0003-0695-3905/work/94763648
citation:
alphadin: 'Storck,
Jan Lukas ; Grothe, Timo
; Tuvshinbayar, Khorolsuren ; Diestelhorst, Elise ; Wehlage,
Daria ; Brockhagen, Bennet
; Wortmann, Martin ; Frese,
Natalie ; u. a.: Stabilization and Incipient Carbonization of Electrospun
Polyacrylonitrile Nanofibers Fixated on Aluminum Substrates. In: Fibers
Bd. 8 (2020), Nr. 9'
ama: Storck JL, Grothe T, Tuvshinbayar K, et al. Stabilization and Incipient Carbonization
of Electrospun Polyacrylonitrile Nanofibers Fixated on Aluminum Substrates. Fibers.
2020;8(9). doi:10.3390/fib8090055
apa: Storck, J. L., Grothe, T., Tuvshinbayar, K., Diestelhorst, E., Wehlage, D.,
Brockhagen, B., … Ehrmann, A. (2020). Stabilization and Incipient Carbonization
of Electrospun Polyacrylonitrile Nanofibers Fixated on Aluminum Substrates. Fibers,
8(9). https://doi.org/10.3390/fib8090055
bibtex: '@article{Storck_Grothe_Tuvshinbayar_Diestelhorst_Wehlage_Brockhagen_Wortmann_Frese_Ehrmann_2020,
title={Stabilization and Incipient Carbonization of Electrospun Polyacrylonitrile
Nanofibers Fixated on Aluminum Substrates}, volume={8}, DOI={10.3390/fib8090055},
number={955}, journal={Fibers}, author={Storck, Jan Lukas and Grothe, Timo and
Tuvshinbayar, Khorolsuren and Diestelhorst, Elise and Wehlage, Daria and Brockhagen,
Bennet and Wortmann, Martin and Frese, Natalie and Ehrmann, Andrea}, year={2020}
}'
chicago: Storck, Jan Lukas, Timo Grothe, Khorolsuren Tuvshinbayar, Elise Diestelhorst,
Daria Wehlage, Bennet Brockhagen, Martin Wortmann, Natalie Frese, and Andrea Ehrmann.
“Stabilization and Incipient Carbonization of Electrospun Polyacrylonitrile Nanofibers
Fixated on Aluminum Substrates.” Fibers 8, no. 9 (2020). https://doi.org/10.3390/fib8090055.
ieee: J. L. Storck et al., “Stabilization and Incipient Carbonization of
Electrospun Polyacrylonitrile Nanofibers Fixated on Aluminum Substrates,” Fibers,
vol. 8, no. 9, 2020.
mla: Storck, Jan Lukas, et al. “Stabilization and Incipient Carbonization of Electrospun
Polyacrylonitrile Nanofibers Fixated on Aluminum Substrates.” Fibers, vol.
8, no. 9, 55, 2020, doi:10.3390/fib8090055.
short: J.L. Storck, T. Grothe, K. Tuvshinbayar, E. Diestelhorst, D. Wehlage, B.
Brockhagen, M. Wortmann, N. Frese, A. Ehrmann, Fibers 8 (2020).
date_created: 2021-01-03T16:53:15Z
date_updated: 2023-03-10T14:48:55Z
department:
- _id: '103'
doi: 10.3390/fib8090055
file:
- access_level: open_access
content_type: application/pdf
creator: aehrmann
date_created: 2021-01-03T16:52:49Z
date_updated: 2021-01-03T16:52:49Z
file_id: '671'
file_name: _2020_Storck_Fibers8_55.pdf
file_size: 5772252
relation: main_file
success: 1
file_date_updated: 2021-01-03T16:52:49Z
funded_apc: '1'
has_accepted_license: '1'
intvolume: ' 8'
issue: '9'
keyword:
- polyacrylonitrile (PAN)
- nanofibers
- electrospinning
- stabilization
- carbonization
language:
- iso: eng
oa: '1'
publication: Fibers
publication_identifier:
issn:
- 2079-6439
publication_status: published
quality_controlled: '1'
status: public
title: Stabilization and Incipient Carbonization of Electrospun Polyacrylonitrile
Nanofibers Fixated on Aluminum Substrates
type: journal_article
user_id: '221157'
volume: 8
year: '2020'
...
---
_id: '680'
abstract:
- lang: eng
text: Polyacrylonitrile (PAN) belongs to the group of polymers that are often used
for electrospinning, as it can be applied as a pre-cursor for carbon nanofibers
and is spinnable from the low-toxic solvent dimethyl sulfoxide (DMSO). While the
influence of different spinning parameters on fibre morphology and mass per unit
area was investigated in a previous study, here we report on the impact of the
spinning solution, using DMSO as a solvent and wire-based (needleless) electrospinning.
Our results show that a broad range of solid contents can be applied, providing
the opportunity to tailor the fibre diameter distribution or to optimize the areal
weight of the nanofibrous mat by changing this parameter, while the chemical composition
of the fibres remains identical.
article_type: original
author:
- first_name: Timo
full_name: Grothe, Timo
id: '221330'
last_name: Grothe
orcid: 0000-0002-9099-4277
orcid_put_code_url: https://api.orcid.org/v2.0/0000-0002-9099-4277/work/94763664
- first_name: Jan Lukas
full_name: Storck, Jan Lukas
id: '221157'
last_name: Storck
orcid: 0000-0002-6841-8791
orcid_put_code_url: https://api.orcid.org/v2.0/0000-0002-6841-8791/work/95037494
- first_name: Marius
full_name: Dotter, Marius
id: '242889'
last_name: Dotter
orcid: 0000-0001-8398-1809
orcid_put_code_url: https://api.orcid.org/v2.0/0000-0001-8398-1809/work/95141265
- first_name: Andrea
full_name: Ehrmann, Andrea
id: '223776'
last_name: Ehrmann
orcid: 0000-0003-0695-3905
orcid_put_code_url: https://api.orcid.org/v2.0/0000-0003-0695-3905/work/94763666
citation:
alphadin: 'Grothe, Timo ; Storck,
Jan Lukas ; Dotter, Marius
; Ehrmann, Andrea: Impact of solid
content in the electrospinning solution on the physical and chemical properties
of polyacrylonitrile (PAN) nanofibrous mats. In: Tekstilec Bd. 63 (2020),
Nr. 3, S. 225–232'
ama: Grothe T, Storck JL, Dotter M, Ehrmann A. Impact of solid content in the electrospinning
solution on the physical and chemical properties of polyacrylonitrile (PAN) nanofibrous
mats. Tekstilec. 2020;63(3):225-232. doi:10.14502/Tekstilec2020.63.225-232
apa: Grothe, T., Storck, J. L., Dotter, M., & Ehrmann, A. (2020). Impact of
solid content in the electrospinning solution on the physical and chemical properties
of polyacrylonitrile (PAN) nanofibrous mats. Tekstilec, 63(3), 225–232.
https://doi.org/10.14502/Tekstilec2020.63.225-232
bibtex: '@article{Grothe_Storck_Dotter_Ehrmann_2020, title={Impact of solid content
in the electrospinning solution on the physical and chemical properties of polyacrylonitrile
(PAN) nanofibrous mats}, volume={63}, DOI={10.14502/Tekstilec2020.63.225-232},
number={3}, journal={Tekstilec}, author={Grothe, Timo and Storck, Jan Lukas and
Dotter, Marius and Ehrmann, Andrea}, year={2020}, pages={225–232} }'
chicago: 'Grothe, Timo, Jan Lukas Storck, Marius Dotter, and Andrea Ehrmann. “Impact
of Solid Content in the Electrospinning Solution on the Physical and Chemical
Properties of Polyacrylonitrile (PAN) Nanofibrous Mats.” Tekstilec 63,
no. 3 (2020): 225–32. https://doi.org/10.14502/Tekstilec2020.63.225-232.'
ieee: T. Grothe, J. L. Storck, M. Dotter, and A. Ehrmann, “Impact of solid content
in the electrospinning solution on the physical and chemical properties of polyacrylonitrile
(PAN) nanofibrous mats,” Tekstilec, vol. 63, no. 3, pp. 225–232, 2020.
mla: Grothe, Timo, et al. “Impact of Solid Content in the Electrospinning Solution
on the Physical and Chemical Properties of Polyacrylonitrile (PAN) Nanofibrous
Mats.” Tekstilec, vol. 63, no. 3, 2020, pp. 225–32, doi:10.14502/Tekstilec2020.63.225-232.
short: T. Grothe, J.L. Storck, M. Dotter, A. Ehrmann, Tekstilec 63 (2020) 225–232.
date_created: 2021-01-03T17:50:46Z
date_updated: 2021-06-08T06:54:30Z
department:
- _id: '103'
doi: 10.14502/Tekstilec2020.63.225-232
file:
- access_level: open_access
content_type: application/pdf
creator: aehrmann
date_created: 2021-01-03T17:49:47Z
date_updated: 2021-01-03T17:49:47Z
file_id: '681'
file_name: _2020_Grothe_Tekstilec63_225-232.pdf
file_size: 347781
relation: main_file
success: 1
file_date_updated: 2021-01-03T17:49:47Z
has_accepted_license: '1'
intvolume: ' 63'
issue: '3'
keyword:
- needleless electrospinning
- polyacrylonitrile (PAN)
- nanofibrous mat
- dimethyl sulfoxide (DMSO)
- Fourier-transform infrared (FTIR) spectroscopy
language:
- iso: eng
oa: '1'
page: 225-232
publication: Tekstilec
publication_status: published
quality_controlled: '1'
status: public
title: Impact of solid content in the electrospinning solution on the physical and
chemical properties of polyacrylonitrile (PAN) nanofibrous mats
type: journal_article
user_id: '237837'
volume: 63
year: '2020'
...
---
_id: '643'
abstract:
- lang: eng
text: 'Electrospun polyacrylonitrile (PAN) nanofi brous mats belong to typical precursor
materials of carbon nanofibres. They have, however, the problem that they need
to be fixed or even stretched during stabilisation and ideally also during carbonisation
in order to avoid undesired conglutinations and deformations of the original nanofibre
morphology, resulting in brittle behaviour of the macroscopic nanofibrous mat,
which impedes several applications. In an earlier investigation, blending PAN
with ZnO was shown to increase fibre diameters and lead to unproblematic stabilisation
and carbonisation of nanofibrous mats. ZnO, on the other hand, may have a negative
impact on biotechnological applications such as tissue engineering. Here, we thus
report on the morphological and chemical modifi cations due to blending PAN electrospinning
solutions with different amounts of casein. By optimising the PAN : casein ratio,
relatively thick, straight nanofibres are obtained, which can be stabilised and
carbonised unambiguously, without the well-known negative impact on cell adhesion
due to the addition of ZnO.'
article_type: original
author:
- first_name: Elise
full_name: Diestelhorst, Elise
last_name: Diestelhorst
- first_name: Fjoralba
full_name: Mance, Fjoralba
last_name: Mance
- first_name: Al
full_name: Mamun, Al
last_name: Mamun
- first_name: Andrea
full_name: Ehrmann, Andrea
last_name: Ehrmann
date_created: 2021-01-03T14:51:09Z
date_updated: 2021-01-18T15:32:28Z
ddc:
- '620'
department:
- _id: '103'
doi: 10.14502/tekstilec2020.63.38-49
file:
- access_level: open_access
content_type: application/pdf
creator: aehrmann
date_created: 2021-01-03T14:48:57Z
date_updated: 2021-01-03T14:48:57Z
file_id: '644'
file_name: _2020_Diestelhorst_Tekstilec63_38-49.pdf
file_size: 1360869
relation: main_file
success: 1
file_date_updated: 2021-01-03T14:48:57Z
has_accepted_license: '1'
intvolume: ' 63'
issue: '1'
keyword:
- electrospinning
- polyacrylonitrile (PAN)
- casein
- nanofibrous mat
- stabilisation
- carbonisation
- tissue engineering
language:
- iso: eng
oa: '1'
page: 38-49
publication: TEKSTILEC
publication_identifier:
issn:
- 0351-3386
- 2350-3696
publication_status: published
quality_controlled: '1'
status: public
title: Chemical and Morphological Modification of PAN Nanofibrous Mats with Addition
of Casein after
type: journal_article
user_id: '223776'
volume: 63
year: '2020'
...
---
_id: '660'
abstract:
- lang: eng
text: The image processing of pictures from fibres and fibrous materials facilitates
the investigation of diverse geometrical properties, such as yarn hairiness, fibre
bifurcations or fibre lengths and diameters. Such irregular sample sets are naturally
suitable to the statistical examination of images, using a random-walk algorithm.
This results in the calculation of the so-called Hurst exponent, which is the
asymptotic scaling exponent of the mean squared displacement of the walker’s position.
Previous investigations have proven the appropriateness of this method for examinations
of diff erent fibres, yarns and textile fabrics. In a recent study, we used AFM
(atomic force microscopy) images, split into different greyscales, to analyse
and quantify differences between various nanofibre mats created from polyacrylonitrile.
In addition to the strong influence of the nanofibre diameters, a certain impact
of the AFM settings was also seen and must be taken into account in future research.
article_type: original
author:
- first_name: Tomasz
full_name: Blachowicz, Tomasz
last_name: Blachowicz
- first_name: Tobias
full_name: Böhm, Tobias
last_name: Böhm
- first_name: Jacek
full_name: Grzybowski, Jacek
last_name: Grzybowski
- first_name: Krzysztof
full_name: Domino, Krzysztof
last_name: Domino
- first_name: Andrea
full_name: Ehrmann, Andrea
last_name: Ehrmann
date_created: 2021-01-03T16:38:38Z
date_updated: 2021-01-18T15:32:28Z
ddc:
- '620'
department:
- _id: '103'
doi: 10.14502/tekstilec2020.63.94-103
file:
- access_level: open_access
content_type: application/pdf
creator: aehrmann
date_created: 2021-01-03T16:36:37Z
date_updated: 2021-01-03T16:36:37Z
file_id: '661'
file_name: _2020_Blachowicz_Tekstilec63-104-112.pdf
file_size: 434954
relation: main_file
success: 1
file_date_updated: 2021-01-03T16:36:37Z
has_accepted_license: '1'
intvolume: ' 63'
issue: '2'
keyword:
- electrospinning
- polyacrylonitrile (PAN)
- nanofibrous mat
- atomic force microscopy (AFM)
- Hurst exponent
- random walk
language:
- iso: eng
oa: '1'
page: 94-103
publication: TEKSTILEC
publication_identifier:
issn:
- 0351-3386
- 2350-3696
publication_status: published
quality_controlled: '1'
status: public
title: Evaluation of Mechanical and Physical Characteristics of Eco blended Melange
Yarns
type: journal_article
user_id: '223776'
volume: 63
year: '2020'
...
---
_id: '664'
abstract:
- lang: eng
text: Thermally stabilized and subsequently carbonized nanofibers are a
promising material for many technical applications in fields such as tissue engineering
or energy storage. They can be obtained from a variety of different polymer precursors
via electrospinning. While some methods have been tested for post-carbonization
doping of nanofibers with the desired ingredients, very little is known about
carbonization of blend nanofibers from two or more polymeric precursors. In this
paper, we report on the preparation, thermal treatment and resulting properties
of poly(acrylonitrile) (PAN)/poly(vinylidene fluoride) (PVDF) blend nanofibers
produced by wire-based electrospinning of binary polymer solutions. Using a wide
variety of spectroscopic, microscopic and thermal characterization methods, the
chemical and morphological transition during oxidative stabilization (280 °C)
and incipient carbonization (500 °C) was thoroughly investigated. Both PAN and
PVDF precursor polymers were detected and analyzed qualitatively and quantitatively
during all stages of thermal treatment. Compared to pure PAN nanofibers, the blend
nanofibers showed increased fiber diameters, strong reduction of undesired morphological
changes during oxidative stabilization and increased conductivity after carbonization.
article_number: '1210'
article_type: original
author:
- first_name: Martin
full_name: Wortmann, Martin
last_name: Wortmann
- first_name: Natalie
full_name: Frese, Natalie
last_name: Frese
- first_name: Al
full_name: Mamun, Al
last_name: Mamun
- first_name: Marah
full_name: Trabelsi, Marah
last_name: Trabelsi
- first_name: Waldemar
full_name: Keil, Waldemar
last_name: Keil
- first_name: Björn
full_name: Büker, Björn
last_name: Büker
- first_name: Ali
full_name: Javed, Ali
last_name: Javed
- first_name: Michael
full_name: Tiemann, Michael
last_name: Tiemann
- first_name: Elmar
full_name: Moritzer, Elmar
last_name: Moritzer
- first_name: Andrea
full_name: Ehrmann, Andrea
last_name: Ehrmann
- first_name: Andreas
full_name: Hütten, Andreas
last_name: Hütten
- first_name: Claudia
full_name: Schmidt, Claudia
last_name: Schmidt
- first_name: Armin
full_name: Gölzhäuser, Armin
last_name: Gölzhäuser
- first_name: Bruno
full_name: Hüsgen, Bruno
last_name: Hüsgen
- first_name: Lilia
full_name: Sabantina, Lilia
last_name: Sabantina
date_created: 2021-01-03T16:44:09Z
date_updated: 2021-01-18T15:32:28Z
ddc:
- '620'
department:
- _id: '103'
doi: 10.3390/nano10061210
file:
- access_level: open_access
content_type: application/pdf
creator: aehrmann
date_created: 2021-01-03T16:43:37Z
date_updated: 2021-01-03T16:43:37Z
file_id: '665'
file_name: _2020_Wortmann_Nanomaterials10_1210.pdf
file_size: 10963886
relation: main_file
success: 1
file_date_updated: 2021-01-03T16:43:37Z
funded_apc: '1'
has_accepted_license: '1'
intvolume: ' 10'
issue: '6'
keyword:
- electrospinning
- carbon nanofiber
- polymer blend
- stabilization
- carbonization
- poly(acrylonitrile) (PAN)
- poly(vinylidene fluoride) (PVDF)
language:
- iso: eng
oa: '1'
publication: Nanomaterials
publication_identifier:
issn:
- 2079-4991
publication_status: published
quality_controlled: '1'
status: public
title: Chemical and Morphological Transition of Poly(acrylonitrile)/Poly(vinylidene
Fluoride) Blend Nanofibers during Oxidative Stabilization and Incipient Carbonization
type: journal_article
user_id: '223776'
volume: 10
year: '2020'
...
---
_id: '573'
abstract:
- lang: eng
text: Polyacrylonitrile belongs to the most often used precursors for carbon fibers.
Using electrospinning, polyacrylonitrile nanofiber mats can be prepared and afterwards
stabilized and carbonized to prepare carbon nanofiber mats which, by adding other
materials, will be useful for several applications. One of these materials is
TiO2, which has photocatalytic properties and can thus be used as a photocatalyst
for photodegradation of dyes. Here, we report on a detailed study of electrospinning,
stabilization, and carbonization of electrospun polyacrylonitrile/TiO2 mats with
varying TiO2 content. Depending on the amount of TiO2 in the nanofibers, the fiber
morphology changes strongly, indicating an upper limit for the preparation of
carbon/TiO2 nanofibers with smooth surface, but offering an even increased inner
surface of the rougher carbon/TiO2 nanofibers with increased TiO2 content due
to better maintenance of the fibrous structure during stabilization.
article_type: original
author:
- first_name: Lilia
full_name: Sabantina, Lilia
last_name: Sabantina
- first_name: Robin
full_name: Böttjer, Robin
last_name: Böttjer
- first_name: Daria
full_name: Wehlage, Daria
last_name: Wehlage
- first_name: Timo
full_name: Grothe, Timo
id: '221330'
last_name: Grothe
orcid: 0000-0002-9099-4277
orcid_put_code_url: https://api.orcid.org/v2.0/0000-0002-9099-4277/work/94763731
- first_name: Michaela
full_name: Klöcker, Michaela
last_name: Klöcker
- first_name: Francisco José
full_name: García-Mateos, Francisco José
last_name: García-Mateos
- first_name: José
full_name: Rodríguez-Mirasol, José
last_name: Rodríguez-Mirasol
- first_name: Tomás
full_name: Cordero, Tomás
last_name: Cordero
- first_name: Andrea
full_name: Ehrmann, Andrea
id: '223776'
last_name: Ehrmann
orcid: 0000-0003-0695-3905
orcid_put_code_url: https://api.orcid.org/v2.0/0000-0003-0695-3905/work/94763733
citation:
alphadin: 'Sabantina,
Lilia ; Böttjer, Robin ;
Wehlage, Daria ; Grothe,
Timo ; Klöcker, Michaela
; García-Mateos, Francisco José
; Rodríguez-Mirasol, José ; Cordero, Tomás ; u. a.: Morphological
study of stabilization and carbonization of polyacrylonitrile/TiO2 nanofiber mats.
In: Journal of Engineered Fibers and Fabrics Bd. 14 (2019), S. 1–8'
ama: Sabantina L, Böttjer R, Wehlage D, et al. Morphological study of stabilization
and carbonization of polyacrylonitrile/TiO2 nanofiber mats. Journal of Engineered
Fibers and Fabrics. 2019;14:1-8. doi:10.1177/1558925019862242
apa: Sabantina, L., Böttjer, R., Wehlage, D., Grothe, T., Klöcker, M., García-Mateos,
F. J., … Ehrmann, A. (2019). Morphological study of stabilization and carbonization
of polyacrylonitrile/TiO2 nanofiber mats. Journal of Engineered Fibers and
Fabrics, 14, 1–8. https://doi.org/10.1177/1558925019862242
bibtex: '@article{Sabantina_Böttjer_Wehlage_Grothe_Klöcker_García-Mateos_Rodríguez-Mirasol_Cordero_Ehrmann_2019,
title={ Morphological study of stabilization and carbonization of polyacrylonitrile/TiO2
nanofiber mats}, volume={14}, DOI={10.1177/1558925019862242},
journal={Journal of Engineered Fibers and Fabrics}, author={Sabantina, Lilia and
Böttjer, Robin and Wehlage, Daria and Grothe, Timo and Klöcker, Michaela and García-Mateos,
Francisco José and Rodríguez-Mirasol, José and Cordero, Tomás and Ehrmann, Andrea},
year={2019}, pages={1–8} }'
chicago: 'Sabantina, Lilia, Robin Böttjer, Daria Wehlage, Timo Grothe, Michaela
Klöcker, Francisco José García-Mateos, José Rodríguez-Mirasol, Tomás Cordero,
and Andrea Ehrmann. “ Morphological Study of Stabilization and Carbonization of
Polyacrylonitrile/TiO2 Nanofiber Mats.” Journal of Engineered Fibers and Fabrics
14 (2019): 1–8. https://doi.org/10.1177/1558925019862242.'
ieee: L. Sabantina et al., “ Morphological study of stabilization and carbonization
of polyacrylonitrile/TiO2 nanofiber mats,” Journal of Engineered Fibers and
Fabrics, vol. 14, pp. 1–8, 2019.
mla: Sabantina, Lilia, et al. “ Morphological Study of Stabilization and Carbonization
of Polyacrylonitrile/TiO2 Nanofiber Mats.” Journal of Engineered Fibers and
Fabrics, vol. 14, 2019, pp. 1–8, doi:10.1177/1558925019862242.
short: L. Sabantina, R. Böttjer, D. Wehlage, T. Grothe, M. Klöcker, F.J. García-Mateos,
J. Rodríguez-Mirasol, T. Cordero, A. Ehrmann, Journal of Engineered Fibers and
Fabrics 14 (2019) 1–8.
date_created: 2019-07-09T18:04:37Z
date_updated: 2021-06-01T09:09:50Z
department:
- _id: '103'
doi: 10.1177/1558925019862242
file:
- access_level: open_access
content_type: application/pdf
creator: aehrmann
date_created: 2019-07-09T18:03:14Z
date_updated: 2019-07-09T18:03:14Z
file_id: '574'
file_name: _2019_Sabantina_JEFF14_1-8.pdf
file_size: 1859126
relation: main_file
success: 1
file_date_updated: 2019-07-09T18:03:14Z
has_accepted_license: '1'
intvolume: ' 14'
keyword:
- Polyacrylonitrile
- PAN
- TiO2
- nanofiber mat
- electrospinning
- composite
- stabilization
- carbonization
language:
- iso: eng
oa: '1'
page: 1-8
publication: Journal of Engineered Fibers and Fabrics
publication_status: published
quality_controlled: '1'
status: public
title: ' Morphological study of stabilization and carbonization of polyacrylonitrile/TiO2
nanofiber mats'
type: journal_article
user_id: '237837'
volume: 14
year: '2019'
...
---
_id: '522'
abstract:
- lang: eng
text: 'Electrospinning can be used to produce nanofiber mats. One of the often used
polymers for electrospinning is polyacrylonitrile (PAN), especially for the production
of carbon nanofibers, but also for a diverse number of other applications. For
some of these applications—e.g., creation of nano-filters—the dimensional stability
of the nanofiber mats is crucial. While relaxation processes—especially dry, wet
and washing relaxation—are well-known and often investigated for knitted fabrics,
the dimensional stability of nanofiber mats has not yet been investigated. Here
we report on the wet relaxation of PAN nanofiber mats, which are dependent on
spinning and solution parameters such as: voltage, electrode distance, nanofiber
mat thickness, and solid content in the solution. Our results show that wet relaxation
has a significant effect on the samples, resulting in a dimensional change that
has to be taken into account for nanofiber mats in wet applications. While the
first and second soaking in pure water resulted in an increase of the nanofiber
mat area up to approximately 5%, the dried sample, after the second soaking, conversely
showed an area reduced by a maximum of 5%. For soaking in soap water, small areal
decreases between approximately 1–4% were measured.'
article_number: '23'
article_type: original
author:
- first_name: Timo
full_name: Grothe, Timo
id: '221330'
last_name: Grothe
orcid: 0000-0002-9099-4277
orcid_put_code_url: https://api.orcid.org/v2.0/0000-0002-9099-4277/work/94763690
- first_name: Lilia
full_name: Sabantina, Lilia
last_name: Sabantina
- first_name: Michaela
full_name: Klöcker, Michaela
last_name: Klöcker
- first_name: Irén
full_name: Juhász Junger, Irén
last_name: Juhász Junger
- first_name: Christoph
full_name: Döpke, Christoph
last_name: Döpke
- first_name: Andrea
full_name: Ehrmann, Andrea
id: '223776'
last_name: Ehrmann
orcid: 0000-0003-0695-3905
orcid_put_code_url: https://api.orcid.org/v2.0/0000-0003-0695-3905/work/94763691
citation:
alphadin: 'Grothe, Timo ; Sabantina,
Lilia ; Klöcker, Michaela
; Juhász Junger, Irén ; Döpke,
Christoph ; Ehrmann, Andrea:
Wet relaxation of electrospun nanofiber mats. In: Technologies Bd. 7 (2019),
Nr. 1'
ama: Grothe T, Sabantina L, Klöcker M, Juhász Junger I, Döpke C, Ehrmann A. Wet
relaxation of electrospun nanofiber mats. Technologies . 2019;7(1). doi:10.3390/technologies7010023
apa: Grothe, T., Sabantina, L., Klöcker, M., Juhász Junger, I., Döpke, C., &
Ehrmann, A. (2019). Wet relaxation of electrospun nanofiber mats. Technologies
, 7(1). https://doi.org/10.3390/technologies7010023
bibtex: '@article{Grothe_Sabantina_Klöcker_Juhász Junger_Döpke_Ehrmann_2019, title={Wet
relaxation of electrospun nanofiber mats}, volume={7}, DOI={10.3390/technologies7010023},
number={123}, journal={Technologies }, author={Grothe, Timo and Sabantina, Lilia
and Klöcker, Michaela and Juhász Junger, Irén and Döpke, Christoph and Ehrmann,
Andrea}, year={2019} }'
chicago: Grothe, Timo, Lilia Sabantina, Michaela Klöcker, Irén Juhász Junger, Christoph
Döpke, and Andrea Ehrmann. “Wet Relaxation of Electrospun Nanofiber Mats.” Technologies
7, no. 1 (2019). https://doi.org/10.3390/technologies7010023.
ieee: T. Grothe, L. Sabantina, M. Klöcker, I. Juhász Junger, C. Döpke, and A. Ehrmann,
“Wet relaxation of electrospun nanofiber mats,” Technologies , vol. 7,
no. 1, 2019.
mla: Grothe, Timo, et al. “Wet Relaxation of Electrospun Nanofiber Mats.” Technologies
, vol. 7, no. 1, 23, 2019, doi:10.3390/technologies7010023.
short: T. Grothe, L. Sabantina, M. Klöcker, I. Juhász Junger, C. Döpke, A. Ehrmann,
Technologies 7 (2019).
date_created: 2019-05-30T20:43:16Z
date_updated: 2021-06-01T09:09:00Z
department:
- _id: '103'
doi: 10.3390/technologies7010023
file:
- access_level: open_access
content_type: application/pdf
creator: aehrmann
date_created: 2019-05-30T20:43:03Z
date_updated: 2019-05-30T20:43:03Z
file_id: '523'
file_name: _2019_Grothe_technologies7_23.pdf
file_size: 3341045
relation: main_file
file_date_updated: 2019-05-30T20:43:03Z
funded_apc: '1'
has_accepted_license: '1'
intvolume: ' 7'
issue: '1'
keyword:
- electrospinning
- filter
- wet relaxation
- dimensions
- polyacrylonitrile (PAN)
language:
- iso: eng
oa: '1'
publication: 'Technologies '
publication_status: published
quality_controlled: '1'
status: public
title: Wet relaxation of electrospun nanofiber mats
type: journal_article
user_id: '237837'
volume: 7
year: '2019'
...
---
_id: '570'
abstract:
- lang: eng
text: 'TiO2 is a semiconductor that is commonly used in dye-sensitized solar cells
(DSSCs). However, the necessity of sintering the TiO2 layer is usually problematic
due to the desired temperatures of typically 500 °C in cells that are prepared
on polymeric or textile electrodes. This is why textile-based DSSCs often use
metal fibers or metallic woven fabrics as front electrodes on which the TiO2 is
coated. Alternatively, several research groups investigate the possibilities to
reduce the necessary sintering temperatures by chemical or other pre-treatments
of the TiO2. Here, we report on a simple method to avoid the sintering step by
using a nanofiber mat as a matrix embedding TiO2 nanoparticles. The TiO2 layer
can be dyed with natural dyes, resulting in a similar bathochromic shift of the
UV/Vis spectrum, as it is known from sintered TiO2 on glass substrates, which
indicates an equivalent chemical bonding. Our results indicate a new possibility
for producing textile-based DSSCs with TiO2, even on textile fabrics that are
not high-temperature resistant. '
article_number: '60'
article_type: original
author:
- first_name: Andrea
full_name: Ehrmann, Andrea
id: '223776'
last_name: Ehrmann
orcid: 0000-0003-0695-3905
- first_name: Al
full_name: Mamun, Al
last_name: Mamun
- first_name: Marah
full_name: Trabelsi, Marah
last_name: Trabelsi
- first_name: Michaela
full_name: Klöcker, Michaela
last_name: Klöcker
- first_name: Lilia
full_name: Sabantina, Lilia
last_name: Sabantina
- first_name: Christina
full_name: Großerhode, Christina
last_name: Großerhode
- first_name: Tomasz
full_name: Blachowicz, Tomasz
last_name: Blachowicz
- first_name: Georg
full_name: Grötsch, Georg
last_name: Grötsch
- first_name: Carsten
full_name: Cornelißen, Carsten
last_name: Cornelißen
- first_name: Almuth
full_name: Streitenberger, Almuth
last_name: Streitenberger
citation:
alphadin: 'Ehrmann,
Andrea ; Mamun, Al ; Trabelsi, Marah ; Klöcker,
Michaela ; Sabantina, Lilia
; Großerhode, Christina ; Blachowicz, Tomasz ; Grötsch,
Georg ; u. a.: Electrospun nanofiber mats with embedded non-sintered
TiO2 for dye-sensitized solar cells (DSSCs). In: Fibers Bd. 7 (2019), Nr. 7'
ama: Ehrmann A, Mamun A, Trabelsi M, et al. Electrospun nanofiber mats with embedded
non-sintered TiO2 for dye-sensitized solar cells (DSSCs). Fibers. 2019;7(7).
doi:10.3390/fib7070060
apa: Ehrmann, A., Mamun, A., Trabelsi, M., Klöcker, M., Sabantina, L., Großerhode,
C., … Streitenberger, A. (2019). Electrospun nanofiber mats with embedded non-sintered
TiO2 for dye-sensitized solar cells (DSSCs). Fibers, 7(7). https://doi.org/10.3390/fib7070060
bibtex: '@article{Ehrmann_Mamun_Trabelsi_Klöcker_Sabantina_Großerhode_Blachowicz_Grötsch_Cornelißen_Streitenberger_2019,
title={Electrospun nanofiber mats with embedded non-sintered TiO2 for dye-sensitized
solar cells (DSSCs)}, volume={7}, DOI={10.3390/fib7070060},
number={760}, journal={Fibers}, author={Ehrmann, Andrea and Mamun, Al and Trabelsi,
Marah and Klöcker, Michaela and Sabantina, Lilia and Großerhode, Christina and
Blachowicz, Tomasz and Grötsch, Georg and Cornelißen, Carsten and Streitenberger,
Almuth}, year={2019} }'
chicago: Ehrmann, Andrea, Al Mamun, Marah Trabelsi, Michaela Klöcker, Lilia Sabantina,
Christina Großerhode, Tomasz Blachowicz, Georg Grötsch, Carsten Cornelißen, and
Almuth Streitenberger. “Electrospun Nanofiber Mats with Embedded Non-Sintered
TiO2 for Dye-Sensitized Solar Cells (DSSCs).” Fibers 7, no. 7 (2019). https://doi.org/10.3390/fib7070060.
ieee: A. Ehrmann et al., “Electrospun nanofiber mats with embedded non-sintered
TiO2 for dye-sensitized solar cells (DSSCs),” Fibers, vol. 7, no. 7, 2019.
mla: Ehrmann, Andrea, et al. “Electrospun Nanofiber Mats with Embedded Non-Sintered
TiO2 for Dye-Sensitized Solar Cells (DSSCs).” Fibers, vol. 7, no. 7, 60,
2019, doi:10.3390/fib7070060.
short: A. Ehrmann, A. Mamun, M. Trabelsi, M. Klöcker, L. Sabantina, C. Großerhode,
T. Blachowicz, G. Grötsch, C. Cornelißen, A. Streitenberger, Fibers 7 (2019).
date_created: 2019-07-04T19:09:23Z
date_updated: 2021-01-18T15:32:27Z
department:
- _id: '103'
doi: 10.3390/fib7070060
intvolume: ' 7'
issue: '7'
keyword:
- TiO2
- dye-sensitized solar cell (DSSC)
- textile-based DSSC
- electrospinning
- nanofiber mat
- polyacrylonitrile (PAN)
language:
- iso: eng
publication: Fibers
publication_status: published
quality_controlled: '1'
status: public
title: Electrospun nanofiber mats with embedded non-sintered TiO2 for dye-sensitized
solar cells (DSSCs)
type: journal_article
user_id: '223776'
volume: 7
year: '2019'
...