--- _id: '2021' abstract: - lang: eng text: " With a steadily increasing number of machines and devices producing electromagnetic radiation, especially, sensitive instruments as well as humans need to be shielded from electromagnetic interference (EMI). Since ideal shielding materials should be lightweight, flexible, drapable, thin and inexpensive, textile fabrics belong to the often-investigated candidates to meet these expectations. Especially, electrospun nanofiber mats are of significant interest since they can not only be produced relatively easily and cost efficiently, but they also enable the embedding of functional nanoparticles in addition to thermal or chemical post-treatments to reach the desired physical properties. This paper gives an overview of recent advances in nanofiber mats for EMI shielding, discussing their production, physical properties and typical characterization techniques.\r\n " article_number: '47' article_type: review author: - first_name: Tomasz full_name: Blachowicz, Tomasz last_name: Blachowicz - 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 citation: alphadin: 'Blachowicz, Tomasz ; Hütten, Andreas ; Ehrmann, Andrea: Electromagnetic Interference Shielding with Electrospun Nanofiber Mats—A Review of Production, Physical Properties and Performance. In: Fibers Bd. 10, MDPI AG (2022), Nr. 6' ama: Blachowicz T, Hütten A, Ehrmann A. Electromagnetic Interference Shielding with Electrospun Nanofiber Mats—A Review of Production, Physical Properties and Performance. Fibers. 2022;10(6). doi:10.3390/fib10060047 apa: Blachowicz, T., Hütten, A., & Ehrmann, A. (2022). Electromagnetic Interference Shielding with Electrospun Nanofiber Mats—A Review of Production, Physical Properties and Performance. Fibers, 10(6). https://doi.org/10.3390/fib10060047 bibtex: '@article{Blachowicz_Hütten_Ehrmann_2022, title={Electromagnetic Interference Shielding with Electrospun Nanofiber Mats—A Review of Production, Physical Properties and Performance}, volume={10}, DOI={10.3390/fib10060047}, number={647}, journal={Fibers}, publisher={MDPI AG}, author={Blachowicz, Tomasz and Hütten, Andreas and Ehrmann, Andrea}, year={2022} }' chicago: Blachowicz, Tomasz, Andreas Hütten, and Andrea Ehrmann. “Electromagnetic Interference Shielding with Electrospun Nanofiber Mats—A Review of Production, Physical Properties and Performance.” Fibers 10, no. 6 (2022). https://doi.org/10.3390/fib10060047. ieee: T. Blachowicz, A. Hütten, and A. Ehrmann, “Electromagnetic Interference Shielding with Electrospun Nanofiber Mats—A Review of Production, Physical Properties and Performance,” Fibers, vol. 10, no. 6, 2022. mla: Blachowicz, Tomasz, et al. “Electromagnetic Interference Shielding with Electrospun Nanofiber Mats—A Review of Production, Physical Properties and Performance.” Fibers, vol. 10, no. 6, 47, MDPI AG, 2022, doi:10.3390/fib10060047. short: T. Blachowicz, A. Hütten, A. Ehrmann, Fibers 10 (2022). date_created: 2022-07-14T17:41:16Z date_updated: 2024-03-27T14:01:14Z doi: 10.3390/fib10060047 file: - access_level: open_access content_type: application/pdf creator: aehrmann date_created: 2022-07-14T17:40:49Z date_updated: 2022-07-14T17:40:49Z file_id: '2022' file_name: _2022_Blachowicz_Fibers10_47_v2.pdf file_size: 3484430 relation: main_file success: 1 file_date_updated: 2022-07-14T17:40:49Z has_accepted_license: '1' intvolume: ' 10' issue: '6' keyword: - shielding effectiveness - near-field antenna - vector network analyzer - carbonization - dielectric properties - conductive properties - magnetic properties - porosity language: - iso: eng oa: '1' publication: Fibers publication_identifier: eissn: - 2079-6439 publication_status: published publisher: MDPI AG quality_controlled: '1' status: public title: Electromagnetic Interference Shielding with Electrospun Nanofiber Mats—A Review of Production, Physical Properties and Performance 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:bi10-20218 user_id: '216459' volume: 10 year: '2022' ... --- _id: '2039' abstract: - lang: eng text: " Carbon nanofibers are used for a broad range of applications, from nano-composites to energy storage devices. They are typically produced from electrospun poly(acrylonitrile) nanofibers by thermal stabilization and carbonization. The nanofiber mats are usually placed freely movable in an oven, which leads to relaxation of internal stress within the nanofibers, making them thicker and shorter. To preserve their pristine morphology they can be mechanically fixated, which may cause the nanofibers to break. In a previous study, we demonstrated that sandwiching the nanofiber mats between metal sheets retained their morphology during stabilization and incipient carbonization at 500 °C. Here, we present a comparative study of stainless steel, titanium, copper and silicon substrate sandwiches at carbonization temperatures of 500 °C, 800 °C and 1200 °C. Helium ion microscopy revealed that all metals mostly eliminated nanofiber deformation, whereas silicone achieved the best results in this regard. The highest temperatures for which the metals were shown to be applicable were 500 °C for silicon, 800 °C for stainless steel and copper, and 1200 °C for titanium. Fourier transform infrared and Raman spectroscopy revealed a higher degree of carbonization and increased crystallinity for higher temperatures, which was shown to depend on the substrate material.\r\n " alternative_id: - '2579' article_number: '721' article_type: original author: - first_name: Jan Lukas full_name: Storck, Jan Lukas id: '221157' last_name: Storck orcid: 0000-0002-6841-8791 - first_name: Martin full_name: Wortmann, Martin last_name: Wortmann - first_name: Bennet full_name: Brockhagen, Bennet id: '237316' last_name: Brockhagen - first_name: Natalie full_name: Frese, Natalie last_name: Frese - first_name: Elise full_name: Diestelhorst, Elise last_name: Diestelhorst - first_name: Timo full_name: Grothe, Timo id: '221330' last_name: Grothe orcid: 0000-0002-9099-4277 - first_name: Christian full_name: Hellert, Christian id: '221135' last_name: Hellert - first_name: Andrea full_name: Ehrmann, Andrea id: '223776' last_name: Ehrmann orcid: 0000-0003-0695-3905 citation: alphadin: 'Storck, Jan Lukas ; Wortmann, Martin ; Brockhagen, Bennet ; Frese, Natalie ; Diestelhorst, Elise ; Grothe, Timo ; Hellert, Christian ; Ehrmann, Andrea: Comparative Study of Metal Substrates for Improved Carbonization of Electrospun PAN Nanofibers. In: Polymers Bd. 14, MDPI AG (2022), Nr. 4' ama: Storck JL, Wortmann M, Brockhagen B, et al. Comparative Study of Metal Substrates for Improved Carbonization of Electrospun PAN Nanofibers. Polymers. 2022;14(4). doi:10.3390/polym14040721 apa: Storck, J. L., Wortmann, M., Brockhagen, B., Frese, N., Diestelhorst, E., Grothe, T., … Ehrmann, A. (2022). Comparative Study of Metal Substrates for Improved Carbonization of Electrospun PAN Nanofibers. Polymers, 14(4). https://doi.org/10.3390/polym14040721 bibtex: '@article{Storck_Wortmann_Brockhagen_Frese_Diestelhorst_Grothe_Hellert_Ehrmann_2022, title={Comparative Study of Metal Substrates for Improved Carbonization of Electrospun PAN Nanofibers}, volume={14}, DOI={10.3390/polym14040721}, number={4721}, journal={Polymers}, publisher={MDPI AG}, author={Storck, Jan Lukas and Wortmann, Martin and Brockhagen, Bennet and Frese, Natalie and Diestelhorst, Elise and Grothe, Timo and Hellert, Christian and Ehrmann, Andrea}, year={2022} }' chicago: Storck, Jan Lukas, Martin Wortmann, Bennet Brockhagen, Natalie Frese, Elise Diestelhorst, Timo Grothe, Christian Hellert, and Andrea Ehrmann. “Comparative Study of Metal Substrates for Improved Carbonization of Electrospun PAN Nanofibers.” Polymers 14, no. 4 (2022). https://doi.org/10.3390/polym14040721. ieee: J. L. Storck et al., “Comparative Study of Metal Substrates for Improved Carbonization of Electrospun PAN Nanofibers,” Polymers, vol. 14, no. 4, 2022. mla: Storck, Jan Lukas, et al. “Comparative Study of Metal Substrates for Improved Carbonization of Electrospun PAN Nanofibers.” Polymers, vol. 14, no. 4, 721, MDPI AG, 2022, doi:10.3390/polym14040721. short: J.L. Storck, M. Wortmann, B. Brockhagen, N. Frese, E. Diestelhorst, T. Grothe, C. Hellert, A. Ehrmann, Polymers 14 (2022). date_created: 2022-07-14T17:58:06Z date_updated: 2024-03-27T14:01:14Z doi: 10.3390/polym14040721 file: - access_level: open_access content_type: application/pdf creator: aehrmann date_created: 2022-07-14T17:57:46Z date_updated: 2022-07-14T17:57:46Z file_id: '2040' file_name: _2022_Storck_Polymers14_721_SI.pdf file_size: 211093 relation: main_file success: 1 file_date_updated: 2022-07-14T17:57:46Z has_accepted_license: '1' intvolume: ' 14' issue: '4' keyword: - electrospinning - poly(acrylonitrile) - stabilization - carbonization - metallic substrates - shrinkage - nanofiber morphology language: - iso: eng main_file_link: - open_access: '1' oa: '1' publication: Polymers publication_identifier: eissn: - 2073-4360 publication_status: published publisher: MDPI AG quality_controlled: '1' status: public title: Comparative Study of Metal Substrates for Improved Carbonization of Electrospun PAN Nanofibers 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:bi10-20394 user_id: '216459' volume: 14 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: '1594' abstract: - lang: eng text: " Electrospun poly(acrylonitrile) (PAN) nanofibers are typical precursors of carbon nanofibers. During stabilization and carbonization, however, the morphology of pristine PAN nanofibers is not retained if the as-spun nanofiber mats are treated without an external mechanical force, since internal stress tends to relax, causing the whole mats to shrink significantly, while the individual fibers thicken and curl. Stretching the nanofiber mats during thermal treatment, in contrast, can result in fractures due to inhomogeneous stress. Previous studies have shown that stabilization and carbonization of PAN nanofibers electrospun on an aluminum substrate are efficient methods to retain the fiber mat dimensions without macroscopic cracks during heat treatment. In this work, we studied different procedures of mechanical fixation via metallic substrates during thermal treatment. The influence of the metallic substrate material as well as different methods of double-sided covering of the fibers, i.e., sandwiching, were investigated. The results revealed that sandwich configurations with double-sided metallic supports not only facilitate optimal preservation of the original fiber morphology but also significantly accelerate the carbonization process. It was found that unlike regularly carbonized nanofibers, the metal supports allow complete deoxygenation at low treatment temperature and that the obtained carbon nanofibers exhibit increased crystallinity.\r\n " article_number: '4686' 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/105572229 - first_name: Christian full_name: Hellert, Christian id: '221135' last_name: Hellert - first_name: Bennet full_name: Brockhagen, Bennet id: '237316' last_name: Brockhagen - first_name: Martin full_name: Wortmann, Martin last_name: Wortmann - first_name: Elise full_name: Diestelhorst, Elise last_name: Diestelhorst - first_name: Natalie full_name: Frese, Natalie last_name: Frese - 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/105572233 - 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/105572236 citation: alphadin: 'Storck, Jan Lukas ; Hellert, Christian ; Brockhagen, Bennet ; Wortmann, Martin ; Diestelhorst, Elise ; Frese, Natalie ; Grothe, Timo ; Ehrmann, Andrea: Metallic Supports Accelerate Carbonization and Improve Morphological Stability of Polyacrylonitrile Nanofibers during Heat Treatment. In: Materials Bd. 14, MDPI AG (2021), Nr. 16' ama: Storck JL, Hellert C, Brockhagen B, et al. Metallic Supports Accelerate Carbonization and Improve Morphological Stability of Polyacrylonitrile Nanofibers during Heat Treatment. Materials. 2021;14(16). doi:10.3390/ma14164686 apa: Storck, J. L., Hellert, C., Brockhagen, B., Wortmann, M., Diestelhorst, E., Frese, N., … Ehrmann, A. (2021). Metallic Supports Accelerate Carbonization and Improve Morphological Stability of Polyacrylonitrile Nanofibers during Heat Treatment. Materials, 14(16). https://doi.org/10.3390/ma14164686 bibtex: '@article{Storck_Hellert_Brockhagen_Wortmann_Diestelhorst_Frese_Grothe_Ehrmann_2021, title={Metallic Supports Accelerate Carbonization and Improve Morphological Stability of Polyacrylonitrile Nanofibers during Heat Treatment}, volume={14}, DOI={10.3390/ma14164686}, number={164686}, journal={Materials}, publisher={MDPI AG}, author={Storck, Jan Lukas and Hellert, Christian and Brockhagen, Bennet and Wortmann, Martin and Diestelhorst, Elise and Frese, Natalie and Grothe, Timo and Ehrmann, Andrea}, year={2021} }' chicago: Storck, Jan Lukas, Christian Hellert, Bennet Brockhagen, Martin Wortmann, Elise Diestelhorst, Natalie Frese, Timo Grothe, and Andrea Ehrmann. “Metallic Supports Accelerate Carbonization and Improve Morphological Stability of Polyacrylonitrile Nanofibers during Heat Treatment.” Materials 14, no. 16 (2021). https://doi.org/10.3390/ma14164686. ieee: J. L. Storck et al., “Metallic Supports Accelerate Carbonization and Improve Morphological Stability of Polyacrylonitrile Nanofibers during Heat Treatment,” Materials, vol. 14, no. 16, 2021. mla: Storck, Jan Lukas, et al. “Metallic Supports Accelerate Carbonization and Improve Morphological Stability of Polyacrylonitrile Nanofibers during Heat Treatment.” Materials, vol. 14, no. 16, 4686, MDPI AG, 2021, doi:10.3390/ma14164686. short: J.L. Storck, C. Hellert, B. Brockhagen, M. Wortmann, E. Diestelhorst, N. Frese, T. Grothe, A. Ehrmann, Materials 14 (2021). date_created: 2022-01-01T13:50:48Z date_updated: 2023-03-10T14:46:25Z department: - _id: '103' doi: 10.3390/ma14164686 intvolume: ' 14' issue: '16' keyword: - electrospinning - stabilization - carbonization - metallic substrates - shrinkage - fiber morphology language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.3390/ma14164686 oa: '1' publication: Materials publication_identifier: eissn: - 1996-1944 publication_status: published publisher: MDPI AG quality_controlled: '1' status: public title: Metallic Supports Accelerate Carbonization and Improve Morphological Stability of Polyacrylonitrile Nanofibers during Heat Treatment 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: '221157' volume: 14 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: '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: '599' abstract: - lang: eng text: 'Electrospinning is a well-known technology used to create nanofiber mats from diverse polymers and other materials. Due to their large surface-to-volume ratio, such nanofiber mats are often applied as air or water filters. Especially the latter, however, have to be mechanically highly stable, which is challenging for common nanofiber mats. One of the approaches to overcome this problem is gluing them on top of more rigid objects, integrating them in composites, or reinforcing them using other technologies to avoid damage due to the water pressure. Here, we suggest another solution. While direct 3D printing with the fused deposition modeling (FDM) technique on macroscopic textile fabrics has been under examination by several research groups for years, here we report on direct FDM printing on nanofiber mats for the first time. We show that by choosing the proper height of the printing nozzle above the nanofiber mat, printing is possible for raw polyacrylonitrile (PAN) nanofiber mats, as well as for stabilized and even more brittle carbonized material. Under these conditions, the adhesion between both parts of the composite is high enough to prevent the nanofiber mat from being peeled off the 3D printed polymer. Abrasion tests emphasize the significantly increased mechanical properties, while contact angle examinations reveal a hydrophilicity between the original values of the electrospun and the 3D printed materials. ' article_number: '1618' article_type: original author: - first_name: Tomasz full_name: Kozior, Tomasz last_name: Kozior - first_name: Marah full_name: Trabelsi, Marah last_name: Trabelsi - first_name: Al full_name: Mamun, Al last_name: Mamun - first_name: Lilia full_name: Sabantina, Lilia last_name: Sabantina - first_name: Andrea full_name: Ehrmann, Andrea id: '223776' last_name: Ehrmann orcid: 0000-0003-0695-3905 citation: alphadin: 'Kozior, Tomasz ; Trabelsi, Marah ; Mamun, Al ; Sabantina, Lilia ; Ehrmann, Andrea: Stabilization of Electrospun Nanofiber Mats Used for Filters by 3D Printing . In: Polymers Bd. 11, MDPI (2019), Nr. 10' ama: Kozior T, Trabelsi M, Mamun A, Sabantina L, Ehrmann A. Stabilization of Electrospun Nanofiber Mats Used for Filters by 3D Printing . Polymers. 2019;11(10). doi:10.3390/polym11101618 apa: Kozior, T., Trabelsi, M., Mamun, A., Sabantina, L., & Ehrmann, A. (2019). Stabilization of Electrospun Nanofiber Mats Used for Filters by 3D Printing . Polymers, 11(10). https://doi.org/10.3390/polym11101618 bibtex: '@article{Kozior_Trabelsi_Mamun_Sabantina_Ehrmann_2019, title={ Stabilization of Electrospun Nanofiber Mats Used for Filters by 3D Printing }, volume={11}, DOI={10.3390/polym11101618}, number={101618}, journal={Polymers}, publisher={MDPI}, author={Kozior, Tomasz and Trabelsi, Marah and Mamun, Al and Sabantina, Lilia and Ehrmann, Andrea}, year={2019} }' chicago: Kozior, Tomasz, Marah Trabelsi, Al Mamun, Lilia Sabantina, and Andrea Ehrmann. “ Stabilization of Electrospun Nanofiber Mats Used for Filters by 3D Printing .” Polymers 11, no. 10 (2019). https://doi.org/10.3390/polym11101618. ieee: T. Kozior, M. Trabelsi, A. Mamun, L. Sabantina, and A. Ehrmann, “ Stabilization of Electrospun Nanofiber Mats Used for Filters by 3D Printing ,” Polymers, vol. 11, no. 10, 2019. mla: Kozior, Tomasz, et al. “ Stabilization of Electrospun Nanofiber Mats Used for Filters by 3D Printing .” Polymers, vol. 11, no. 10, 1618, MDPI, 2019, doi:10.3390/polym11101618. short: T. Kozior, M. Trabelsi, A. Mamun, L. Sabantina, A. Ehrmann, Polymers 11 (2019). date_created: 2019-10-06T09:19:53Z date_updated: 2021-01-18T15:32:28Z ddc: - '670' department: - _id: '103' doi: 10.3390/polym11101618 file: - access_level: open_access content_type: application/pdf creator: aehrmann date_created: 2019-10-06T09:18:09Z date_updated: 2019-10-06T09:18:09Z file_id: '600' file_name: _2019_Kozior_Polymers11_1618.pdf file_size: 1442387 relation: main_file success: 1 file_date_updated: 2019-10-06T09:18:09Z funded_apc: '1' has_accepted_license: '1' intvolume: ' 11' issue: '10' keyword: - nanofiber mat - electrospinning - water filter - 3D printing - FDM printing - adhesion - stabilization - carbonization language: - iso: eng oa: '1' publication: Polymers publication_status: published publisher: MDPI quality_controlled: '1' status: public title: ' Stabilization of Electrospun Nanofiber Mats Used for Filters by 3D Printing ' type: journal_article user_id: '237837' volume: 11 year: '2019' ...