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

Nanoscale. 2012 Jun 21;4(12):3640-3. doi: 10.1039/c2nr30617d. Epub 2012 May 15.

Abstract

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).

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aluminum / chemistry
  • Aluminum / isolation & purification
  • Carbonates / chemistry*
  • Cations / chemistry
  • Cobalt / chemistry*
  • Electrodes
  • Hydroxides / chemistry*
  • Nanostructures / chemistry*
  • Porosity

Substances

  • Carbonates
  • Cations
  • Hydroxides
  • cobalt hydroxide
  • Cobalt
  • Aluminum