Single catalyst electrocatalytic reduction of CO2 in water to H2+CO syngas mixtures with water oxidation to O2

Peng Kang; Zuofeng Chen; Animesh Nayak; Sheng Zhang; Thomas J. Meyer

doi:10.1039/C4EE01904K

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Single catalyst electrocatalytic reduction of CO₂ in water to H₂+CO syngas mixtures with water oxidation to O₂†

Peng Kang,^a Zuofeng Chen,^ab Animesh Nayak,^a Sheng Zhang^a and Thomas J. Meyer*^a

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* Corresponding authors

^a Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
E-mail: tjmeyer@unc.edu

^b Department of Chemistry, Tongji University, Shanghai 200092, PR China

Abstract

A single Ru(II) polypyridyl carbene complex catalyzes the electrochemical reduction of CO₂ in water with added bicarbonate to give syngas H₂+CO mixtures at the cathode and water oxidation to O₂ at the anode. The H₂/CO ratio in the syngas product can be adjusted between 4 : 1 and 1 : 2 by varying the applied potential and solution pH with overall electrolysis energy efficiencies near 50%.

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Article information

DOI: https://doi.org/10.1039/C4EE01904K
Article type: Communication
Submitted: 19 Jun 2014
Accepted: 26 Sep 2014
First published: 13 Oct 2014

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Energy Environ. Sci., 2014,7, 4007-4012

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Single catalyst electrocatalytic reduction of CO₂ in water to H₂+CO syngas mixtures with water oxidation to O₂

P. Kang, Z. Chen, A. Nayak, S. Zhang and T. J. Meyer, Energy Environ. Sci., 2014, 7, 4007 DOI: 10.1039/C4EE01904K

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