Photoelectrochemical oxygen evolution from water by a manganese chlorophyll—liquid crystal electrode
✍ Scribed by Masuo Aizawa; Morio Hirano; Shuichi Suzuki
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- English
- Weight
- 518 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0013-4686
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✦ Synopsis
In order to accomplish the photoelectrochemical evolution of oxygen from water, manganese chlorophyll was incorporated in a thin liquid crystal membrane attached to a platinum plate. The manganese chlorophyll-liquid crystal electrode reacted to water on visible light irradiation. The potential of the platinum markedly depended on the stales of the immobilized chlorophyll. Visible light irradiation induced a negative shii in potential. The incorporation of a oematic liquid crystal was found to considerably enhance ihe potential shift on light irradiation. The negative potential shift accounted for the light-induced electron flow from water to the platinum phase. The photoelectrochemical reaction of the immobilized manganese chlorophyll was performed in parallel with the direct determination of the oxygen evolution. The molecular oxygen evolution was associated with the photocurrent.