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Photo-induced electron transfer of a chlorophyll—liquid crystal electrode to water

✍ Scribed by Masuo Aizawa; Nobukazu Suzuki; Morio Hirano; Shuichi Suzuki

Publisher
Elsevier Science
Year
1978
Tongue
English
Weight
458 KB
Volume
23
Category
Article
ISSN
0013-4686

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✦ Synopsis

A platinum plate was coated with a thin layer ofchlorophyll and liquid crystal in order to make it photo-excitable. The chlorophyll-liquid crystal electrode immersed in water was found to shift its electrode potential to a more positive value on light irradiation. Furthermore light irradiation increased cathodic current. Liquid crystals such as N-(p-methoxybenxylidene)~p'-butylaniline markedly enhanced a photoresponse in electrode potential and current. A prominent photo-response of the electrode appeared in an acidic solution around pH4. A possibility of a direct electron transfer from a photo-excited chlorophyll-liquid crystal electrode to water, ie, photo-decomposition of water, is suggested.

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