High pseudocapacitive cobalt carbonate hydroxide films derived from CoAl layered double hydroxides

被引：150
|
作者：
Lu, Zhiyi [1 ]
Zhu, Wei [1 ]
Lei, Xiaodong [1 ]
Williams, Gareth R. [2 ,3 ]
O'Hare, Dermot [2 ]
Chang, Zheng [1 ]
Sun, Xiaoming [1 ]
Duan, Xue [1 ]
机构：
[1] Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China
[2] Univ Oxford, Chem Res Lab, Dept Chem, Oxford OX1 3TA, England
[3] London Metropolitan Univ, Sch Human Sci, London N7 8DB, England
来源：
NANOSCALE | 2012年 / 4卷 / 12期
关键词：
CAPACITANCE; ELECTRODES;
D O I：
10.1039/c2nr30617d
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A thin nanosheet of mesoporous cobalt carbonate hydroxide (MPCCH) has been fabricated from a CoAl-LDH nanosheet following removal of the Al cations by alkali etching. The basic etched electrode exhibits enhanced specific capacitance (1075 F g(-1) at 5 mA cm(-2)) and higher rate capability and cycling stability (92% maintained after 2000 cycles).
引用
收藏
页码：3640 / 3643
页数：4
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