Mechanically Tough Large-Area Hierarchical Porous Graphene Films for High-Performance Flexible Supercapacitor Applications
Mechanically Tough Large-Area Hierarchical Porous Graphene Films for High-Performance Flexible Supercapacitor Applications
复制标题
用于高性能柔性超级电容器应用的机械韧性大面积分层多孔石墨烯薄膜
DOI：
10.1002/adma.201501983
复制
发表时间：
2015-08-12
影响因子：
29.4
通讯作者：
Wang, Xiaogong
中科院分区：
文献类型：
--
作者：
Xiong, Zhiyuan;Liao, Cailian;Wang, Xiaogong
采用氧化石墨烯水凝胶叶片浇铸和后浇铸还原法制备了具有机械韧性的大面积分层多孔石墨烯薄膜。制备的石墨烯薄膜由剥离良好的石墨烯纳米片组成，具有互穿的三维分层多孔结构，高强度和模量，大比面积和高导电性。用石墨烯电极制备的柔性薄膜超级电容器具有优异的面电容、良好的倍率性能和优异的机械稳定性。
Mechanically tough large-area hierarchical porous graphene films are fabricated by blade-casting of graphene oxide hydrogel and postcasting reduction. The as-prepared graphene films, which consist of well-exfoliated graphene nanosheets, possess interpenetrating 3D hierarchical porous structures, high strength and modulus, large specific area, and high electrical conductivity. Flexible film supercapacitors fabricated with the graphene electrodes show superior areal capacitance, good rate performance, and excellent mechanical stability.