4.7 Article

Facile synthesis and superior supercapacitor performances of three-dimensional cobalt sulfide hierarchitectures

Journal

CRYSTENGCOMM
Volume 13, Issue 23, Pages 6960-6963

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c1ce06082a

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Funding

  1. 973 program [2010CB631303]
  2. NSFC [50971071, 51071087, 51171083]
  3. MOE Innovation Team [IRT0927]

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Formation of three-dimensional cobalt sulfide hierarchitectures through a mechanism similar to Ostwald ripening has been investigated. Electrochemical measurements reveal that the CoS1.097 nanostructure exhibits superior supercapacitor performances with high specific capacitances (555 F g(-1) at 5 mA cm(-2) and 464 F g(-1) at 100 mA cm(-2)) and excellent cycle life in 2 M KOH solution.

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