Chemistry: electrical and wave energy – Processes and products – Processes of treating materials by wave energy
Patent
1982-08-12
1984-01-24
Williams, Howard S.
Chemistry: electrical and wave energy
Processes and products
Processes of treating materials by wave energy
204158R, 2525011, B01J 1912
Patent
active
044275110
ABSTRACT:
The efficiency of photo-induced electron transfer reactions is increased and the back transfer of electrons in such reactions is greatly reduced when a photo-sensitizer zinc porphyrin-surfactant and an electron donor manganese porphyrin-surfactant are admixed into phospho-lipid membranes. The phospholipids comprising said membranes are selected from phospholipids whose head portions are negatively charged. Said membranes are contacted with an aqueous medium in which an essentially neutral viologen electron acceptor is admixed. Catalysts capable of transfering electrons from reduced viologen electron acceptor to hydrogen to produce elemental hydrogen are also included in the aqueous medium. An oxidizable olefin is also admixed in the phospholipid for the purpose of combining with oxygen that coordinates with oxidized electron donor manganese porphyrin-surfactant.
REFERENCES:
patent: 4032977 (1977-06-01), Gratzel
patent: 4045315 (1977-08-01), Fletcher
patent: 4069120 (1978-01-01), Meyerand, Jr. et al.
patent: 4094751 (1978-06-01), Nozik
patent: 4105517 (1978-08-01), Frosch
patent: 4166026 (1979-11-01), Harriman et al.
patent: 4169030 (1979-09-01), Gray et al.
patent: 4211621 (1980-07-01), Porter
M. Calvin-"Synthetic Chloroplasts", Energy Research, 3, 73-87, (1979).
Moradpour-"Hydrogen Production by Visible Light of Aqueous Solutions of Ru (BiPy).sub.3.sup.2+, Nouveau Journal de Chimie, vol. 2, No. 6, pp. 547-549.
Sprintschnik et al., "Photochemical Cleavage of Water, A System for Solar Energy Conversion Using Monolayer-Bound Transition Metal Complexes", J.A.S.C. 98, 2338-8 (1976).
Article in Chem. & Eng. News, Aug. 1, 1977, pp. 15-16--"Rhodium Complex Splits Water Using Sunlight".
Calvin Melvin
Wohlgemuth Roland
Chapman Terryence
Williams Howard S.
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