Self-assembled three-dimensional hierarchical porous V2O5/graphene hybrid aerogels for supercapacitors with high energy density and long cycle life

被引：190

作者：

Wu, Yingjie ^{[1
]}

Gao, Guohua ^{[1
]}

Wu, Guangming ^{[1
]}

机构：

[1] Tongji Univ, Shanghai Key Lab Special Artificial Microstruct, Shanghai 200092, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2015年 / 3卷 / 05期

基金：

中国国家自然科学基金;

关键词：

HIGH-PERFORMANCE; GRAPHENE OXIDE; CARBON NANOTUBES; REDUCED GRAPHENE; ELECTRODES; COMPOSITE; HYDROGELS; STRATEGY; FACILE;

D O I：

10.1039/c4ta05537c

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This paper describes the synthesis of a hierarchical porous vanadium pentoxide (V2O5)/graphene hybrid aerogel through a low-cost and facile sol-gel method. The V(2)O(5/)graphene hybrid aerogel is synthesized through the in situ growth of V2O5 nanofibers on graphene sheets. The V2O5/graphene hybrid aerogel-based supercapacitors exhibit enhanced specific capacitance (486 F g(-1)), high energy density (68 W h kg(-1)) and outstanding cycle performance. These effects are attributed to the unique hierarchical porous structure of the hybrid aerogel.

引用

页码：1828 / 1832

页数：5

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