A Hierarchical Carbon Derived from Sponge-Templated Activation of Graphene Oxide for High-Performance Supercapacitor Electrodes
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- 作者：Jin Xu ; Ziqi Tan ; Wencong Zeng ; Guanxiong Chen ; Shuilin Wu ; Yuan Zhao ; Kun Ni ; Zhuchen Tao ; Mujtaba Ikram ; Hengxing Ji and Yanwu Zhu
- 刊名：Advanced Materials
- 出版年：2016
- 出版时间：July 13, 2016
- 年：2016
- 卷：28
- 期：26
- 页码：5222-5228
- 全文大小：1227K
- ISSN：1521-4095
文摘
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.