Issue 8, 2011
From the journal:

Energy & Environmental Science

What is the choice for supercapacitors: graphene or graphene oxide?†

Bin Xu,*a   Shufang Yue,b   Zhuyin Sui,c   Xuetong Zhang,*c   Shanshan Hou,b   Gaoping Caoa  and  Yusheng Yanga  

* Corresponding authors

a Research Institute of Chemical Defense, Beijing, China
E-mail: xubinn@sohu.com
Fax: +86-10-66705840
Tel: +86-10-66705840

b School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing, China

c School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China
E-mail: zhangxtchina@yahoo.com

Abstract

Graphene oxide, an intermediate during graphene synthesis by a modified Hummers's method, exhibits higher capacitance, up to 189 F gāˆ’1, than graphene due to an additional pseudo-capacitance effect of attached oxygen-containing functional groups on its basal planes. Taking its higher capacitance, lower cost and shorter processing time into consideration, graphene oxide may be a better choice than graphene as an electrode material for supercapacitors.

Graphical abstract: What is the choice for supercapacitors: graphene or graphene oxide?

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Article information

DOI
https://doi.org/10.1039/C1EE01198G
Article type
Communication
Submitted
21 Feb 2011
Accepted
21 Apr 2011
First published
16 Jun 2011

Energy Environ. Sci., 2011,4, 2826-2830

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What is the choice for supercapacitors: graphene or graphene oxide?

B. Xu, S. Yue, Z. Sui, X. Zhang, S. Hou, G. Cao and Y. Yang, Energy Environ. Sci., 2011, 4, 2826 DOI: 10.1039/C1EE01198G

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