Abstract
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 H2 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.
Original language | English |
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Pages (from-to) | 4436–4441 |
Journal | CHEMSUSCHEM |
Volume | 10 |
Issue number | 22 |
Early online date | 16 Oct 2017 |
DOIs | |
Publication status | Published - 23 Nov 2017 |
Keywords
- Hydrogen evolution
- Photocatalysis
- Solar fuel generation
- Supramolecular
- Transition metals