| 摘要 |
Provided is a photophysicochemical cell including a liquid phase medium of a fuel such as a redox liquid, etc., a photoanode electrode formed of a porous electrically conductive material or an n-type visible-region semiconductor having a high carrier density, the photoanode electrode or the n-type visible-region semiconductor being inserted in the liquid phase medium and an electrode formed of an electrically conductive material capable of reducing oxygen, the electrode being inserted in the liquid phase medium as a counter electrode, in which oxygen is caused to be co-present in the above liquid phase medium, light is applied to the above photoanode electrode thereby to oxidatively photolyze the above fuel on said anode electrode without applying any auxiliary external voltage and oxygen is thereby reduced on the above counter electrode thereby to generate a photoelectric current in said external circuit, according to which photophysicochemical cell, a wide range of compounds that naturally include alcohols such as methanol and also include urea, ammonia, agarose, glucose, amino acid and, further, biomass such as cellulose can be decomposed as a fuel to generate photocurrent.
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