A Hierarchical Carbon Derived from Sponge‐Templated Activation of Graphene Oxide for High‐Performance Supercapacitor Electrodes. Issue 26 (3rd May 2016)

• Record Type: Journal Article
• Authors: Xu, Jin; Tan, Ziqi; Zeng, Wencong; Chen, Guanxiong; Wu, Shuilin; Zhao, Yuan; Ni, Kun; Tao, Zhuchen; Ikram, Mujtaba; Ji, Hengxing; Zhu, Yanwu
• Is Part Of: Advanced materials. Volume 28:Issue 26(2016)
• Page Start: 5222
• Page End: 5228
• Publication Date: 2016-05-03
• Subjects: activation -- graphene oxide -- sponge‐templating -- supercapacitors; Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.201600586
• Languages: English
• ISSNs: 0935-9648

Abstract

Abstract : A hierarchical porous carbon is fabricated by introducing a polyurethane sponge to a template graphene oxide into a 3D interconnected structure, while KOH activation generates abundant micropores in its backbone. Supercapacitors assembled with this carbon achieve a high energy density of 89 W h kg −1 (64 W h L −1 ) and outstanding power density due to the shortened ion‐transport distance in 3D.