A bisamide ruthenium polypyridyl complex as a robust and efficient photosensitizer for hydrogen production

Olivier Schott, Amlan K. Pal, Daniel Chartrand, Garry S. Hanan

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

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 languageEnglish
Pages (from-to)4436–4441
JournalCHEMSUSCHEM
Volume10
Issue number22
Early online date16 Oct 2017
DOIs
Publication statusPublished - 23 Nov 2017

Keywords

  • Hydrogen evolution
  • Photocatalysis
  • Solar fuel generation
  • Supramolecular
  • Transition metals

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