Supercapacitors: A Hierarchical Carbon Derived from Sponge-Templated Activation of Graphene Oxide for High-Performance Supercapacitor Electrodes (Adv. Mater. 26/2016)

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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：5331
• 全文大小：1979K
• ISSN：1521-4095

文摘

H. Ji, Y. Zhu, and co-workers demonstrate a 3D hierarchically porous carbon by introducing a polyurethane sponge to template graphene oxide into a 3D interconnected structure while KOH activation generates abundant micropores in its backbone. As described on page 5222, a supercapacitor assembled with this carbon material achieves a high energy density of 89 W h kg⁻¹ (64 W h L⁻¹) and outstanding power density due to its shortened ion transport distance in three dimensions.