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Electrolytic CO(2) Reduction in Tandem with Oxidative Organic Chemistry

[Image: see text] Electrochemical reduction of CO(2) into carbon-based products using excess clean electricity is a compelling method for producing sustainable fuels while lowering CO(2) emissions. Previous electrolytic CO(2) reduction studies all involve dioxygen production at the anode, yet this a...

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Autores principales: Li, Tengfei, Cao, Yang, He, Jingfu, Berlinguette, Curtis P.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2017
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5532713/
https://www.ncbi.nlm.nih.gov/pubmed/28776020
http://dx.doi.org/10.1021/acscentsci.7b00207
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author Li, Tengfei
Cao, Yang
He, Jingfu
Berlinguette, Curtis P.
author_facet Li, Tengfei
Cao, Yang
He, Jingfu
Berlinguette, Curtis P.
author_sort Li, Tengfei
collection PubMed
description [Image: see text] Electrochemical reduction of CO(2) into carbon-based products using excess clean electricity is a compelling method for producing sustainable fuels while lowering CO(2) emissions. Previous electrolytic CO(2) reduction studies all involve dioxygen production at the anode, yet this anodic reaction requires a large overpotential and yields a product bearing no economic value. We report here that the cathodic reduction of CO(2) to CO can occur in tandem with the anodic oxidation of organic substrates that bear higher economic value than dioxygen. This claim is demonstrated by 3 h of sustained electrolytic conversion of CO(2) into CO at a copper–indium cathode with a current density of 3.7 mA cm(–2) and Faradaic efficiency of >70%, and the concomitant oxidation of an alcohol at a platinum anode with >75% yield. These results were tested for four alcohols representing different classes of alcohols and demonstrate electrolytic reduction and oxidative chemistry that form higher-valued carbon-based products at both electrodes.
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spelling pubmed-55327132017-08-03 Electrolytic CO(2) Reduction in Tandem with Oxidative Organic Chemistry Li, Tengfei Cao, Yang He, Jingfu Berlinguette, Curtis P. ACS Cent Sci [Image: see text] Electrochemical reduction of CO(2) into carbon-based products using excess clean electricity is a compelling method for producing sustainable fuels while lowering CO(2) emissions. Previous electrolytic CO(2) reduction studies all involve dioxygen production at the anode, yet this anodic reaction requires a large overpotential and yields a product bearing no economic value. We report here that the cathodic reduction of CO(2) to CO can occur in tandem with the anodic oxidation of organic substrates that bear higher economic value than dioxygen. This claim is demonstrated by 3 h of sustained electrolytic conversion of CO(2) into CO at a copper–indium cathode with a current density of 3.7 mA cm(–2) and Faradaic efficiency of >70%, and the concomitant oxidation of an alcohol at a platinum anode with >75% yield. These results were tested for four alcohols representing different classes of alcohols and demonstrate electrolytic reduction and oxidative chemistry that form higher-valued carbon-based products at both electrodes. American Chemical Society 2017-06-28 2017-07-26 /pmc/articles/PMC5532713/ /pubmed/28776020 http://dx.doi.org/10.1021/acscentsci.7b00207 Text en Copyright © 2017 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes.
spellingShingle Li, Tengfei
Cao, Yang
He, Jingfu
Berlinguette, Curtis P.
Electrolytic CO(2) Reduction in Tandem with Oxidative Organic Chemistry
title Electrolytic CO(2) Reduction in Tandem with Oxidative Organic Chemistry
title_full Electrolytic CO(2) Reduction in Tandem with Oxidative Organic Chemistry
title_fullStr Electrolytic CO(2) Reduction in Tandem with Oxidative Organic Chemistry
title_full_unstemmed Electrolytic CO(2) Reduction in Tandem with Oxidative Organic Chemistry
title_short Electrolytic CO(2) Reduction in Tandem with Oxidative Organic Chemistry
title_sort electrolytic co(2) reduction in tandem with oxidative organic chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5532713/
https://www.ncbi.nlm.nih.gov/pubmed/28776020
http://dx.doi.org/10.1021/acscentsci.7b00207
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