Photochemical and electrochemical catalytic reduction of CO2 with NHC-containing dicarbonyl rhenium(i) bipyridine complexes

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Antoine Maurin
  • Chi-On Ng
  • Lingjing Chen
  • Marc Robert

Detail(s)

Original languageEnglish
Pages (from-to)14524-14529
Journal / PublicationDalton Transactions
Volume45
Issue number37
Online published1 Jun 2016
Publication statusPublished - 7 Oct 2016

Abstract

The electrochemical and photochemical catalytic reductions of CO2 using N,O and N,S-NHC-containing dicarbonyl rhenium(i) bipyridine complexes have been investigated. By replacing the carbonyl ligand in tricarbonyl rhenium(i) complexes with a weaker π-accepting ligand, the characteristic MLCT transitions shifted to lower energy. This makes photocatalysts capable of harvesting low-energy visible light for catalyzing CO2 reduction. A detailed study revealed that these dicarbonyl rhenium(i) complexes are also highly selective for photocatalysis of CO2 to CO with a good quantum efficiency (10%), similar to that of the tricarbonyl rhenium(i) complex analogues. From the electrochemical study, it was observed that the catalysts efficiently produce CO from CO2 with high turnover frequency and good stability over time.

Citation Format(s)

Photochemical and electrochemical catalytic reduction of CO2 with NHC-containing dicarbonyl rhenium(i) bipyridine complexes. / Maurin, Antoine; Ng, Chi-On; Chen, Lingjing; Lau, Tai-Chu; Robert, Marc; Ko, Chi-Chiu.

In: Dalton Transactions, Vol. 45, No. 37, 07.10.2016, p. 14524-14529.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review