title: Application of hydrogenase for photoinduced hydrogen evolution.
abstract: Various attempts have been made to develop suitable redox systems for the photochemical utilization of solar energy. Recent work has shown that the three component systems containing a photosensitizer, an electron donor, and an electron acceptor can be used to evolve hydrogen when a suitable catalyst is present. The reactions are quite general and have been demonstrated for a wide range of photosensitizers and electron carriers. Hydrogenase or colloidal platinum are widely used as catalysts, for they can catalyze the reduction of protons in the presence of a suitable electron donating agent such as reduced methylviologen. Some properties of these components and the efficiency of the photoinduced hydrogen evolution are discussed.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D002736:Chloroplasts / Q000201:enzymology; D003574:Cytochrome c Group / Q000378:metabolism / Q000528:radiation effects; D003901:Desulfovibrio / Q000201:enzymology*; D004579:Electron Transport; D005288:Ferredoxins / Q000378:metabolism; D006859:Hydrogen / Q000378:metabolism*; D006864:Hydrogenase / Q000378:metabolism*; D007700:Kinetics; D008027:Light; D008665:Metalloporphyrins; D008823:Micelles; D009249:NADP / Q000378:metabolism; D010084:Oxidation-Reduction; D010269:Paraquat; D010777:Photochemistry; D010984:Platinum; D011166:Porphyrins; D011726:Pyridinium Compounds; D012967:Sodium Dodecyl Sulfate / Q000494:pharmacology; D012996:Solutions; D013053:Spectrophotometry; D014867:Water / Q000378:metabolism
chemical_list: D003574:Cytochrome c Group; D005288:Ferredoxins; D008665:Metalloporphyrins; D008823:Micelles; D011166:Porphyrins; D011726:Pyridinium Compounds; D012996:Solutions; D014867:Water; D012967:Sodium Dodecyl Sulfate; D010984:Platinum; D009249:NADP; C049630:zinc tetraphenylporphyrintrisulfonate; D006859:Hydrogen; C017165:cytochrome c(3); D006864:Hydrogenase; D010269:Paraquat