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Photo-induced electron transfer method

Patent ·
OSTI ID:864848
 [1];  [2]
  1. 2823 Hillegass Ave., Berkeley, CA 94705
  2. 2683 Buena Vista Way, Berkeley, CA 94708
+ Show Author Affiliations

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.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA
DOE Contract Number:
W-7405-ENG-48
Assignee:
Wohlgemuth, Roland (2823 Hillegass Ave., Berkeley, CA 94705);Calvin, Melvin (2683 Buena Vista Way, Berkeley, CA 94708)
Patent Number(s):
US 4427511
OSTI ID:
864848
Country of Publication:
United States
Language:
English

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Related Subjects

/204/252/
acceptor
admixed
aqueous
aqueous medium
capable
catalysts
charged
combining
comprising
contacted
coordinates
donor
efficiency
electron
electron acceptor
electron donor
electron transfer
electrons
elemental
essentially
greatly
greatly reduce
greatly reduced
head
hydrogen
included
increased
lipid membranes
manganese
medium
membranes
method
negatively
negatively charged
neutral
olefin
oxidizable
oxidized
oxygen
phospho-lipid
phospholipid
phospholipids
photo-induced
photo-induced electron
photo-sensitizer
porphyrin-surfactant
portions
produce
produce elemental
purpose
reactions
reduced
selected
transfer
transfer method
transfer reaction
transfer reactions
transfering
viologen
zinc