A highly selective copper-indium bimetallic electrocatalyst for the electrochemical reduction of aqueous CO2to CO

Handle URI:
http://hdl.handle.net/10754/563928
Title:
A highly selective copper-indium bimetallic electrocatalyst for the electrochemical reduction of aqueous CO2to CO
Authors:
Rasul, Shahid ( 0000-0002-2543-0205 ) ; Anjum, Dalaver H.; Jedidi, Abdesslem ( 0000-0003-4070-3299 ) ; Minenkov, Yury; Cavallo, Luigi ( 0000-0002-1398-338X ) ; Takanabe, Kazuhiro ( 0000-0001-5374-9451 )
Abstract:
The challenge in the electrochemical reduction of aqueous carbon dioxide is in designing a highly selective, energy-efficient, and non-precious-metal electrocatalyst that minimizes the competitive reduction of proton to form hydrogen during aqueous CO2 conversion. A non-noble metal electrocatalyst based on a copper-indium (Cu-In) alloy that selectively converts CO2 to CO with a low overpotential is reported. The electrochemical deposition of In on rough Cu surfaces led to Cu-In alloy surfaces. DFT calculations showed that the In preferentially located on the edge sites rather than on the corner or flat sites and that the d-electron nature of Cu remained almost intact, but adsorption properties of neighboring Cu was perturbed by the presence of In. This preparation of non-noble metal alloy electrodes for the reduction of CO2 provides guidelines for further improving electrocatalysis.
KAUST Department:
KAUST Catalysis Center (KCC); Physical Sciences and Engineering (PSE) Division; Advanced Nanofabrication, Imaging and Characterization Core Lab; Chemical Science Program; Core Labs; Catalysis for Energy Conversion (CatEC)
Publisher:
Wiley-Blackwell
Journal:
Angewandte Chemie International Edition
Issue Date:
23-Dec-2014
DOI:
10.1002/anie.201410233
Type:
Article
ISSN:
14337851
Sponsors:
The research reported herein was supported by the King Abdullah University of Science and Technology. L.C. and A.J. are grateful to the KAUST Supercomputing Laboratory for the resources provided under the project k199.
Appears in Collections:
Articles; Advanced Nanofabrication, Imaging and Characterization Core Lab; Physical Sciences and Engineering (PSE) Division; Chemical Science Program; KAUST Catalysis Center (KCC)

Full metadata record

DC FieldValue Language
dc.contributor.authorRasul, Shahiden
dc.contributor.authorAnjum, Dalaver H.en
dc.contributor.authorJedidi, Abdesslemen
dc.contributor.authorMinenkov, Yuryen
dc.contributor.authorCavallo, Luigien
dc.contributor.authorTakanabe, Kazuhiroen
dc.date.accessioned2015-08-03T12:19:51Zen
dc.date.available2015-08-03T12:19:51Zen
dc.date.issued2014-12-23en
dc.identifier.issn14337851en
dc.identifier.doi10.1002/anie.201410233en
dc.identifier.urihttp://hdl.handle.net/10754/563928en
dc.description.abstractThe challenge in the electrochemical reduction of aqueous carbon dioxide is in designing a highly selective, energy-efficient, and non-precious-metal electrocatalyst that minimizes the competitive reduction of proton to form hydrogen during aqueous CO2 conversion. A non-noble metal electrocatalyst based on a copper-indium (Cu-In) alloy that selectively converts CO2 to CO with a low overpotential is reported. The electrochemical deposition of In on rough Cu surfaces led to Cu-In alloy surfaces. DFT calculations showed that the In preferentially located on the edge sites rather than on the corner or flat sites and that the d-electron nature of Cu remained almost intact, but adsorption properties of neighboring Cu was perturbed by the presence of In. This preparation of non-noble metal alloy electrodes for the reduction of CO2 provides guidelines for further improving electrocatalysis.en
dc.description.sponsorshipThe research reported herein was supported by the King Abdullah University of Science and Technology. L.C. and A.J. are grateful to the KAUST Supercomputing Laboratory for the resources provided under the project k199.en
dc.publisherWiley-Blackwellen
dc.subjectCarbon dioxide fixationen
dc.subjectCu-In alloyen
dc.subjectElectrocatalysisen
dc.subjectElectrochemistryen
dc.subjectReaction mechanismsen
dc.titleA highly selective copper-indium bimetallic electrocatalyst for the electrochemical reduction of aqueous CO2to COen
dc.typeArticleen
dc.contributor.departmentKAUST Catalysis Center (KCC)en
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentAdvanced Nanofabrication, Imaging and Characterization Core Laben
dc.contributor.departmentChemical Science Programen
dc.contributor.departmentCore Labsen
dc.contributor.departmentCatalysis for Energy Conversion (CatEC)en
dc.identifier.journalAngewandte Chemie International Editionen
kaust.authorRasul, Shahiden
kaust.authorAnjum, Dalaver H.en
kaust.authorJedidi, Abdesslemen
kaust.authorMinenkov, Yuryen
kaust.authorCavallo, Luigien
kaust.authorTakanabe, Kazuhiroen
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