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Enhanced Photocatalytic Hydrogen Production by Adsorption of an [FeFe]‐Hydrogenase Subunit Mimic on Self‐Assembled Membranes
Author(s) -
Troppmann Stefan,
Brandes Eva,
Motschmann Hubert,
Li Fei,
Wang Mei,
Sun Licheng,
König Burkhard
Publication year - 2016
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201501377
Subject(s) - chemistry , hydrogenase , membrane , photocatalysis , adsorption , hydrogen production , catalysis , photochemistry , ruthenium , water splitting , photosensitizer , self assembly , combinatorial chemistry , chemical engineering , organic chemistry , biochemistry , engineering
Abstract Self‐assembled vesicles with membrane‐embedded or adsorbed ruthenium polypyridine complexes were further functionalized by the adsorption of an [FeFe]‐hydrogenase subunit mimic to the membrane interface enhancing the photocatalytic hydrogen production in water under acidic conditions. The resulting two‐dimensional membrane assembly places the photosensitizer and hydrogen‐evolving diiron complex in close proximity resulting in a six‐ to twelvefold increase in the turnover number as compared to the same system in the absence of lipid membranes. The interface assembly then enables the combining of hydrophilic and hydrophobic catalytic entities for light‐driven proton reduction in acidic water and provides a flexible method for membrane functionalization.