Synthesis and Study of the Properties of Porous Carbon–Carbon Nanocomposites with Nitrogen-Containing Carbon Nanofibers

• Published in: Solid fuel chemistry 2022-12, Vol.56 (Suppl 1), p.S35-S42
• Main Authors: Kryazhev, Yu. G., Pod”yacheva, O. Yu, Trenikhin, M. V., Gulyaeva, T. I., Anikeeva, I. V., Vol’fkovich, Yu. M., Rychagov, A. Yu
• Format: Article
• Language: English
• Subjects: Carbon fibers; Chemistry; Chemistry and Materials Science; Chloropolymers; Dehydrochlorination; Low temperature; Nanocomposites; Nanofibers; Nitrogen; Physical Chemistry; Polyvinyl chloride
• ISSN: 0361-5219; 1934-8029
• DOI: 10.3103/S0361521923010044

The possibility of synthesizing carbon–carbon nanocomposites with nanofibers embedded in a carbon matrix by two-stage dehydrochlorination (under the action of alkali followed by carbonization) of a carbon-chain chloropolymer has been shown. Chlorinated polyvinyl chloride was used as the initial chloropolymer, and nitrogen-containing carbon nanofibers (N-CNFs) were used as a nanoscale component. The structure of the resulting nanocomposites was examined by electron microscopy and the texture parameters were studied using low-temperature nitrogen adsorption–desorption. The introduction of N-CNFs into the carbon matrix and the activation of the resulting carbon–carbon nanocomposite in an atmosphere of CO 2 contributed to the formation of a micro- and mesoporous material with a specific surface area of ~1100 m 2 /g. It was shown that the resulting nanocomposites were characterized by high energy capacity and energy efficiency when tested as electrodes of electrochemical supercapacitors.