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

Abstract

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
Pages12-17
Number of pages6
EditionJanuary
ISBN (Electronic)9781510805095
DOIs
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
NumberJanuary
Volume1640
ISSN (Print)0272-9172

Other

Other2013 MRS Fall Meeting
CountryUnited States
CityBoston
Period13/12/113/12/6

ASJC Scopus subject areas

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

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