Photoelectrochemical oxygen evolution using polysulfide as sacrificial electron acceptor

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• 作者：Milczarek ; Grzegorz ; Kasuya ; Atsuo ; Tohji ; Kazuyuki. ; Arai ; Takeo ; Ito ; Takashi
• 关键词：Oxygen evolution ; Polysulfide ; Photoelectrochemical cell
• 刊名：Solar Energy Materials and Solar Cells
• 出版年：2005
• 出版时间：February 15, 2005
• 年：2005
• 卷：86
• 期：1
• 页码：43-52
• 全文大小：286 K

文摘

A two-compartment photoelectrochemical cell consisting of a TiO₂ photoanode, Nafion membrane and platinized tin oxide glass as the cathode was constructed. The anolyte and catholyte were 1M NaOH and 1M Na₂S₄, respectively. Illumination of the photoanode resulted in oxygen evolution in the anodic compartment simultaneously with the reduction of tetrasulfide in the cathodic compartment. The mechanism of such a photoelectrochemical oxygen evolution is discussed throughout and the possible application of this reaction in solar water splitting is mentioned.