NDLI: Stabilization and Carbonization of PAN Nanofiber Mats Electrospun on Metal Substrates

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Stabilization and Carbonization of PAN Nanofiber Mats Electrospun on Metal Substrates

Content Provider	MDPI
Author	Andreas, Hütten Storck, Jan Lukas Brockhagen, Bennet Grothe, Timo Sabantina, Lilia Kaltschmidt, Bernhard Tuvshinbayar, Khorolsuren Braun, Laura Tanzli, Ewin Ehrmann, Andrea
Copyright Year	2021
Description	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.
Starting Page	12
e-ISSN	23115629
DOI	10.3390/c7010012
Journal	C - Journal of Carbon Research
Issue Number	1
Volume Number	7
Language	English
Publisher	MDPI
Publisher Date	2021-01-27
Access Restriction	Open
Subject Keyword	C - Journal of Carbon Research Textiles Polyacrylonitrile (pan) Nanofibers Electrospinning Aluminum Copper Tin Titanium Silicon Wafer Steel Stabilization and Carbonization
Content Type	Text
Resource Type	Article

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