光触媒・光表面反応の新展開  Cu2Oによる水の完全分解

書誌事項

タイトル別名
  • Frontiers of Photo-catalysis and Photo-reaction at Solid Surfaces. Overall Water Splitting on Cu2O.
  • Cu2O ニ ヨル ミズ ノ カンゼン ブンカイ

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抄録

Recently, we have found that Cu2O powder suspended in distilled water by stirring decompose water catalytically into H2 and O2 under visible light irradiation. To our surprise, the experiment revealed that the catalytic decomposion of water by Cu2O is due to the mechanical energy produced in to stirring and the reaction under stirring was enhanced by the irradiation of visible light having photon energies more than the band gap energy of Cu2O(2 eV). The reaction is regarded as “mechano-catalytic overall splitting”; and is distinct from conventional photocatalytic water decomposition.

収録刊行物

  • 表面科学

    表面科学 20 (2), 66-72, 1999

    公益社団法人 日本表面科学会

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