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Open AccessArticle

Stabilization and Carbonization of PAN Nanofiber Mats Electrospun on Metal Substrates

1
Faculty of Engineering and Mathematics, Bielefeld University of Applied Sciences, 33615 Bielefeld, Germany
2
Thin Films and Physics of Nanostructures, Bielefeld University, 33615 Bielefeld, Germany
*
Author to whom correspondence should be addressed.
Received: 30 November 2020 / Revised: 22 January 2021 / Accepted: 23 January 2021 / Published: 27 January 2021
(This article belongs to the Collection Feature Papers in the Science and Engineering of Carbons)
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. View Full-Text
Keywords: polyacrylonitrile (PAN); nanofibers; electrospinning; aluminum; copper; tin; titanium; silicon wafer; steel; stabilization and carbonization polyacrylonitrile (PAN); nanofibers; electrospinning; aluminum; copper; tin; titanium; silicon wafer; steel; stabilization and carbonization
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MDPI and ACS Style

Storck, J.L.; Brockhagen, B.; Grothe, T.; Sabantina, L.; Kaltschmidt, B.; Tuvshinbayar, K.; Braun, L.; Tanzli, E.; Hütten, A.; Ehrmann, A. Stabilization and Carbonization of PAN Nanofiber Mats Electrospun on Metal Substrates. C 2021, 7, 12. https://doi.org/10.3390/c7010012

AMA Style

Storck JL, Brockhagen B, Grothe T, Sabantina L, Kaltschmidt B, Tuvshinbayar K, Braun L, Tanzli E, Hütten A, Ehrmann A. Stabilization and Carbonization of PAN Nanofiber Mats Electrospun on Metal Substrates. C. 2021; 7(1):12. https://doi.org/10.3390/c7010012

Chicago/Turabian Style

Storck, Jan L.; Brockhagen, Bennet; Grothe, Timo; Sabantina, Lilia; Kaltschmidt, Bernhard; Tuvshinbayar, Khorolsuren; Braun, Laura; Tanzli, Ewin; Hütten, Andreas; Ehrmann, Andrea. 2021. "Stabilization and Carbonization of PAN Nanofiber Mats Electrospun on Metal Substrates" C 7, no. 1: 12. https://doi.org/10.3390/c7010012

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