Journal
CHEMSUSCHEM
Volume 10, Issue 22, Pages 4436-4441Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201701543
Keywords
hydrogen evolution; photocatalysis; solar fuel generation; supramolecular; transition metals
Funding
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- Centre for Self-Assembled Chemical Structure (CSACS)
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A photosensitizer based on a ruthenium complex of a bisamide-polypyridyl ligand gives rise to a large improvement in photocatalytic stability, rate of activity, and efficiency in photocatalytic H-2 production compared to [Ru(bpy) 3] (2+) (bpy= 2,2'bpyridine). The bisamide ruthenium polypyridyl complex combined with a cobaltoxime-based photocatalyst was found to be highly efficient under blue-light (turnover number (TON)= 7800) and green-light irradiation (TON= 7200) whereas [Ru(bpy) 3](2+) was significantly less effective with a TON of 2600 and 1100, respectively. The greatest improvement was under red-light-emitting diodes, with bisamide ruthenium polypyridyl complex and cobaltoxime exhibiting a TON of 4200 compared to [Ru(bpy) 3 (]2)+ and cobaltoxime at a TON of only 71.
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