Recent progress in CO2 reduction using bimetallic electrodes containing copper

Dickinson, H. L.A. and Symes, M. D. (2022) Recent progress in CO2 reduction using bimetallic electrodes containing copper. Electrochemistry Communications, 135, 107212. (doi: 10.1016/j.elecom.2022.107212)

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Abstract

Rising levels of carbon dioxide in the atmosphere have precipitated considerable research efforts aimed at generating energy from renewable sources, such that consuming this energy does not lead to further increases in atmospheric CO2. Simultaneously, atmospheric CO2 represents a useful feedstock for the storage of renewably-generated energy, in particular through electroreduction of CO2 powered by renewables to give hydrocarbon fuels that when burned do not increase net CO2 levels in the atmosphere. In order to bring such renewable-powered production of hydrocarbons from CO2 to reality, improved electrocatalysts for carbon dioxide reduction are required. For example, Cu is the only single metal that demonstrates appreciable Faradaic efficiency for CO2 reduction products that are reduced by more than two-electrons, but pure Cu is not an especially active or selective catalyst for this process. Hence there has been considerable interest in making bimetallic catalysts using Cu in combination with other metals in order to find systems that can reduce CO2 to products such as methane, methanol, ethanol and beyond. In this minireview, we give an overview of recent progress in CO2 electroreduction using bimetallic cathodes composed of copper and various other metals in combination, with a particular focus on studies going beyond two-electron reduction products from the last two years.

Item Type:Articles
Additional Information:The authors thank the EPSRC for funding (EP/R020914/1) and MDS thanks the Royal Society for a University Research Fellowship (UF150104).
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Symes, Dr Mark and Dickinson, Miss Hannah
Authors: Dickinson, H. L.A., and Symes, M. D.
College/School:College of Science and Engineering > School of Chemistry
Journal Name:Electrochemistry Communications
Publisher:Elsevier
ISSN:1388-2481
ISSN (Online):1873-1902
Published Online:13 January 2022
Copyright Holders:Copyright © 2022 The Authors
First Published:First published in Electrochemistry Communications 135: 107212
Publisher Policy:Reproduced under a Creative Commons licence

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
301241Ultra-Reduced Polyoxometalates as Electron-Coupled-Proton-Systems for Energy StorageLeroy CroninEngineering and Physical Sciences Research Council (EPSRC)EP/R020914/1Chemistry