Highly selective plasma-activated copper catalysts for carbon dioxide reduction to ethylene

Mistry, Hemma; Varela, Ana Sofia; Bonifacio, Cecile S.; Zegkinoglou, Ioannis; Sinev, Ilya; Choi, Yong-Wook; Kisslinger, Kim; Stach, Eric A.; Yang, Judith C.; Strasser, Peter; Cuenya, Beatriz Roldan

doi:10.1038/ncomms12123

Highly selective plasma-activated copper catalysts for carbon dioxide reduction to ethylene

Journal Article · Thu Jun 30 00:00:00 EDT 2016 · Nature Communications

DOI:https://doi.org/10.1038/ncomms12123· OSTI ID:1310260

^[1]; Varela, Ana Sofia; Bonifacio, Cecile S.; Zegkinoglou, Ioannis; Sinev, Ilya; Choi, Yong-Wook; Kisslinger, Kim; ; Yang, Judith C.; Strasser, Peter; Cuenya, Beatriz Roldan

Ruhr-University Bochum, Germany

There is an urgent need to develop technologies that use renewable energy to convert waste products such as carbon dioxide into hydrocarbon fuels. Carbon dioxide can be electrochemically reduced to hydrocarbons over copper catalysts, although higher efficiency is required. We have developed oxidized copper catalysts displaying lower overpotentials for carbon dioxide electroreduction and record selectivity towards ethylene (60%) through facile and tunable plasma treatments. Herein we provide insight into the improved performance of these catalysts by combining electrochemical measurements with microscopic and spectroscopic characterization techniques. Operando X-ray absorption spectroscopy and cross-sectional scanning transmission electron microscopy show that copper oxides are surprisingly resistant to reduction and copper⁺ species remain on the surface during the reaction. Furthermore, our results demonstrate that the roughness of oxide-derived copper catalysts plays only a partial role in determining the catalytic performance, while the presence of copper⁺ is key for lowering the onset potential and enhancing ethylene selectivity.

View Accepted Manuscript (DOE)

Research Organization:: Brookhaven National Laboratory (BNL), Upton, NY (United States). Center for Functional Nanomaterials; Univ. of Central Florida Research Foundation, Orlando, FL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)

Grant/Contract Number:: FG02-08ER15995

OSTI ID:: 1310260

Alternate ID(s):: OSTI ID: 1336136

Report Number(s):: BNL--112610-2016-JA; ncomms12123

Journal Information:: Nature Communications, Journal Name: Nature Communications Vol. 7; ISSN 2041-1723

Publisher:: Nature Publishing GroupCopyright Statement

Country of Publication:: United States

Language:: English

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Selective $CO_{2}$ Electroreduction to Ethylene and Multicarbon Alcohols via Electrolyte-Driven Nanostructuring Gao, Dunfeng; Sinev, Ilya; Scholten, Fabian Deutsches Elektronen-Synchrotron, DESY, Hamburg https://doi.org/10.3204/pubdb-2020-00548	text	January 2019
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Nitride-Derived Copper Modified with Indium as a Selective and Highly Stable Catalyst for the Electroreduction of Carbon Dioxide Veenstra, Florentine L. P.; Martín, Antonio J.; Pérez-Ramírez, Javier ETH Zurich https://doi.org/10.3929/ethz-b-000366265	text	January 2019

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