Porous Graphitic Carbon Fibers for Fast-Charging Supercapacitor Applications

Xin Pang, Tong Zhou, Qinting Jiang, Parveen Kumar, Shitao Geng, Minyu Jia, Jin Zhou, Bo Liu, Hua Qin

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Abstract

Large accessible surface area, facile pore engineering, and high electrical conductivity are highly desirable properties of efficient electrode materials. Herein, porous carbon fibers with a graphitic carbon skeleton and amorphous carbon body are successfully synthesized from directly carbonized polyacrylonitrile (PAN)/FeCl3 electrospun fibers via in situ catalytic graphitization and subsequent chemical activation. Due to the graphitic carbon skeleton, which facilitates fast electron transfer, and porous carbon body, which gives a large specific surface area for charge accumulation and fast ion diffusion, optimal porous graphitic carbon fibers are developed that exhibit a fast-charging electrochemical performance with a capacitance of 165 F g(-1) at high current densities of 300 A g(-1) in an alkaline electrolyte. These findings can prove to be beneficial for realizing a supercapacitor with rapid charging and discharging ability at high current densities.
Original languageEnglish
JournalEnergy Technology
Volume8
Issue number5
DOIs
Publication statusPublished - 2020
Externally publishedYes

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Pang, X., Zhou, T., Jiang, Q., Kumar, P., Geng, S., Jia, M., Zhou, J., Liu, B., & Qin, H. (2020). Porous Graphitic Carbon Fibers for Fast-Charging Supercapacitor Applications. Energy Technology, 8(5). https://doi.org/10.1002/ente.202000050