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Artificial Photosynthesis at Dynamic Self‐Assembled Interfaces in Water
Author(s) -
Hansen Malte,
Troppmann Stefan,
König Burkhard
Publication year - 2016
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201503712
Subject(s) - micelle , artificial photosynthesis , vesicle , redox , photosensitizer , electron transfer , photosynthesis , intermolecular force , photocatalysis , chemistry , nanotechnology , catalysis , aqueous solution , photochemistry , materials science , membrane , organic chemistry , molecule , biochemistry
Artificial photosynthesis is one of the big scientific challenges of today. Self‐assembled dynamic interfaces, such as vesicles or micelles, have been used as microreactors to mimic biological photosynthesis. These aggregates can help to overcome typical problems of homogeneous photocatalytic water splitting. Microheterogeneous environments organize catalyst–photosensitizer assemblies at the interface in close proximity and thus enhance intermolecular interactions. Thereby vesicles and micelles may promote photoinitiated charge separation and suppress back electron transfer. The dynamic self‐assembled interfaces solubilize non‐polar compounds and protect sensitive catalytic units and intermediates against degradation. In addition, vesicles provide compartmentation that was used to separate different redox environments needed for an overall water splitting system. This Minireview provides an overview of the applications of micellar and vesicular microheterogeneous systems for solar energy conversion by photosensitized water oxidation and hydrogen generation.