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

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 cyclin...

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Bibliographic Details
Main Authors: Lu, Z, Zhu, W, Lei, X, Williams, G, O'Hare, D, Chang, Z, Sun, X, Duan, X
Format: Journal article
Language:English
Published: 2012
Description
Summary: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).