文献类型：期刊文献

英文题名：Highly ordered mesoporous phenol-formaldehyde carbon as supercapacitor electrode material

作者：Cai, Tingwei[1];Zhou, Min[1];Ren, Dayong[1];Han, Guangshuai[1];Guan, Shiyou[1]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

年份：2013

卷号：231

起止页码：197

外文期刊名：JOURNAL OF POWER SOURCES

收录：;EI(收录号：20130515972775);WOS:【SCI-EXPANDED(收录号:WOS:000316036700025)】；

语种：英文

外文关键词：Ordered mesoporous carbon; Phenol-formaldehyde carbon; Chemical modification; Specific capacitance; Supercapacitor

摘要：Highly ordered, body-centered cubic mesoporous phenol-formaldehyde carbon C-FDU-16 is prepared by a facile evaporation induced self-assembly strategy under a basic aqueous condition. Afterwards, in order to increase the active site of surface electrochemical reactions and promote the wettability in aqueous electrolyte, a simple chemical surface modification is carried out on the C-FDU-16 by nitric acid treatment. The C-FDU-16 and the acid-modified C-FDU-16 (N-FDU-16) are used as the active materials for supercapacitors. Although C-FDU-16 has unique 3D mesoporous network combined with high specific surface area, it do not show well supercapacitor properties for its bad wettability with the aqueous electrolyte. However, the N-FDU-16 with acid treatment exhibits the largest specific capacitance of 219 F g(-1) at a current density of 0.1 A g(-1) in 1 M H2SO4 electrolyte which is 7 times larger than that of the C-FDU-16 and it also shows good cycling stability as well. Therefore, based on the above investigations, ordered mesoporous phenol-formaldehyde carbon such as C-FDU-16 can be a potential candidate for supercapacitors after the simply acid treatment. (C) 2012 Elsevier B.V. All rights reserved.