Photoelectrochemical studies of MoS2 electrode by rotating ring-disk electrode technique.
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概要
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Photoelectrochemical processes at both n- and p-type MoS<SUB>2</SUB> electrodes were studied by rotating ring-disk electrode technique. In comparison with other semiconductor photoelectrodes such as CdS, ZnO, and TiO<SUB>2</SUB>, the competitive oxidations of various reducing agents at n-MoS<SUB>2</SUB> electrode were not clearly dependent on their redox potentials. The MoS<SUB>2</SUB> photoanode was particularly stabilized in I<SUP>−</SUP> solutions, and this was attributed to the specific adsorption of I<SUP>−</SUP> ions on the electrode surface. Two step waves were observed in the photocurrent-potential curves of MoS<SUB>2</SUB> photoanode in I<SUP>−</SUP> solutions. The first wave was controlled by the diffusion of I<SUP>−</SUP> ions from the bulk solution to the electrode surface, and the second wave at more anodic potential was dependent on the formation of the photogenerated holes.
- 公益社団法人 日本化学会の論文
著者
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Honda Kenichi
Department Of Synthetic Chemistry Faculty Of Engineering The University Of Tokyo
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Fujishima Akira
Department Of Applied Chemistry Faculty Of Engineering The University Of Tokyo
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Loo Boon
Materials Research Laboratory, SRI International
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NOGUCHI YOSHIKAZU
Department of Chemical Engineering, Gunma University
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