Synthesis of CaMn2O4-related electrocatalyst for Oxygen evolution electrode of watersplitting

Yuya Taki, Zhenquan Tan, Satoshi Ohara, Takashi Itoh, Yoshiaki Nakano, Katsushi Fujii, Masakazu Sugiyama

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Water-splitting by using electric power produced by solar cells is promising system to produce hydrogen without fossil fuels. Oxygen evolving catalyst is, however, major problem to prevent using this system widely because precious materials are used in the catalyst. Considering from the photosynthesis II of plants, the compound of Ca-Mn-0 is one of the candidates for the oxygen evolving catalyst. In this study, the synthesis condition and the oxygen evolving electrocatalytic activity of CaMn2O4•xH2O are investigated. The overpotential at 0.1 mA/cm2 was 0.28 V when using the electrode of carbon paste and CaMn2O4•H2O with the weight ratio of 3:1.

Original languageEnglish
Title of host publicationSustainable Solar-Energy Conversion Using Earth-Abundant Materials
EditorsS. Jin, K. Sivula, J. Stevens, G. Zheng
PublisherMaterials Research Society
Number of pages6
ISBN (Electronic)9781510805095
Publication statusPublished - 2014 Jan 1
Event2013 MRS Fall Meeting - Boston, United States
Duration: 2013 Dec 12013 Dec 6

Publication series

NameMaterials Research Society Symposium Proceedings
ISSN (Print)0272-9172


Other2013 MRS Fall Meeting
CountryUnited States

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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