Comparative Study of Metal Substrates for Improved Carbonization of Electrospun PAN Nanofibers

J.L. Storck, M. Wortmann, B. Brockhagen, N. Frese, E. Diestelhorst, T. Grothe, C. Hellert, A. Ehrmann, Polymers 14 (2022).

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Artikel | Veröffentlicht | Englisch
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Storck, Jan LukasFH Bielefeld; Wortmann, Martin; Brockhagen, Bennet; Frese, Natalie; Diestelhorst, Elise; Grothe, TimoFH Bielefeld; Hellert, Christian; Ehrmann, AndreaFH Bielefeld
Abstract
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.
Erscheinungsjahr
Zeitschriftentitel
Polymers
Band
14
Zeitschriftennummer
4
Artikelnummer
721
eISSN
FH-PUB-ID

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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
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
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
@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} }
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.
J. L. Storck et al., “Comparative Study of Metal Substrates for Improved Carbonization of Electrospun PAN Nanofibers,” Polymers, vol. 14, no. 4, 2022.
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.
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