A cobalt(ii) quaterpyridine complex as a visible light-driven catalyst for both water oxidation and reduction

Chi Fai Leung, Siu Mui Ng, Chi Chiu Ko, Wai Lun Man, Jiashou Wu, Lingjing Chen, Tai Chu Lau*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

160 Citations (Scopus)

Abstract

The complex [CoII(qpy)(OH2)2]2+ (qpy = 2,2′:6′,2′′:6′′, 2′′′-quaterpyridine) is an efficient visible light-driven catalyst for both water oxidation and reduction. It catalyses photochemical oxygen evolution from water at pH 8.0 with [RuII(bpy) 3]2+/S2O82- (λ = 457 nm, max TON = 335, bpy = 2,2′-bipyridine). It also catalyses photochemical hydrogen generation from [IrIII(dF(CF 3)ppy)2(dtbbpy)]+/TEOA (dF(CF3)ppy = anion of 2-(2,4-difluorophenyl)-5-trifluoromethylpyridine, dtbbpy = 4,4′-di-tert-butyl-2,2′-bipyridine, TEOA = triethanolamine) in aqueous acetonitrile (λ > 420 nm, max TON = 1730).

Original languageEnglish
Pages (from-to)7903-7907
Number of pages5
JournalEnergy and Environmental Science
Volume5
Issue number7
Early online date17 May 2012
DOIs
Publication statusPublished - 1 Jul 2012

Scopus Subject Areas

  • Environmental Chemistry
  • Renewable Energy, Sustainability and the Environment
  • Nuclear Energy and Engineering
  • Pollution

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