Cotton-derived carbon fibers with high specific capacitance by ZnCl2 activation for supercapacitor application

DOI

10.2991/icseee-16.2016.67How to use a DOI?

Keywords

Porous carbon fibers; cotton; supercapacitors; ZnCl2; high specific capacitance

Abstract

Cotton, an inexpensive natural product, was used as a precursor for fabrication of high specific capacitance porous carbon fibers for spercapacitors. Porous carbon fibers with the hollow structure, high surface area of 1620 m2 g-1 and high content of C=O functional group are prepared by one-step carbonization and activation using ZnCl2 as activation agent. The maximum specific capacitance of porous carbon fibers activated at a ZnCl2/cotton mass ratio of 2:1 is measured to be 426.7 F g-1 at a current density 0.6 A g-1. The tubular structure, high surface area, and high content of oxygen functional groups are responsible for the excellent electrochemical performance.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Shuguang Wang
AU  - Jie Yu
PY  - 2016/12
DA  - 2016/12
TI  - Cotton-derived carbon fibers with high specific capacitance by ZnCl2 activation for supercapacitor application
BT  - Proceedings of the 2016 5th International Conference on Sustainable Energy and Environment Engineering (ICSEEE 2016)
PB  - Atlantis Press
SP  - 358
EP  - 363
SN  - 2352-5401
UR  - https://doi.org/10.2991/icseee-16.2016.67
DO  - 10.2991/icseee-16.2016.67
ID  - Wang2016/12
ER  -