Studies of a photosynthetic photoelectrochemical cell using various electrodes

The authors have developed a photochemical cell using a combination of photosynthetic electron transport (photosystem I particles) and the photoreduction of a dye such as flavin mononucleotide (FMN). The overall power conversion efficiency depends on the rate of charge transfer across the electrode...

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Bibliographic Details
Published in:Applied biochemistry and biotechnology 1983-01, Vol.8 (5), p.395-405
Main Authors: Sanderson, D.G, Pan, R.L, Gross, E.L
Format: Article
Language:English
Subjects:
Biological and medical sciences
Biotechnology
chlorophyll
electrodes
energy output
Fundamental and applied biological sciences. Psychology
Methods. Procedures. Technologies
photosystem I
Various methods and equipments
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Summary:The authors have developed a photochemical cell using a combination of photosynthetic electron transport (photosystem I particles) and the photoreduction of a dye such as flavin mononucleotide (FMN). The overall power conversion efficiency depends on the rate of charge transfer across the electrode surfaces in addition to the efficiency of the photosynthetic and photochemical reactions. For this reason, a study of the effect of varying the nature of the electrodes on the power developed. Reticulated vitreous carbon electrodes showed higher power conversion efficiencies than did nickel mesh, platinum, or SnO sub(2) glass. There are two reasons for this. First, the ratio of actual to apparent surface area is greater for RVC electrodes than for the others. Second, FMN and its photoproducts react better with carbon than platinum electrodes. However, the phtopotential remained stable for several hours only for the platinized platinum electrodes.
ISSN:0273-2289
1559-0291
DOI:10.1007/BF02779912