Synthesis of the CoOOH fine nanoflake film with the high rate capacitance property

Eiji Hosono, Shinobu Fujihara, Iraru Honma, Masaki Ichihara, Haoshen Zhou

Research output: Contribution to journalArticlepeer-review

147 Citations (Scopus)


The CoOOH film on the nickel foil is fabricated via layered hydroxide cobalt acetate (LHCA) film with nanosheets morphology, which is synthesized by chemical bath deposition method. The LHCA nanosheets film is converted into CoOOH fine nanoflake films with high porous and high surface area by the oxidation reaction based on the dissolved oxygen in KOH solution. The intercalated acetate into the LHCA layer, which is strong basic species, caused the oxidation. The electrochemical capacitance property of the resultant CoOOH fine nanoflake film is studied by cyclic voltammetry (CV). In the CV, a good high rate property is indicated by the results of CV at high rate scan. It is caused by the specific morphology of the CoOOH fine nanoflake films.

Original languageEnglish
Pages (from-to)779-783
Number of pages5
JournalJournal of Power Sources
Issue number1
Publication statusPublished - 2006 Jul 14


  • Chemical bath deposition
  • CoOOH
  • Electrochemical capacitor
  • High rate property

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering


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