Low-Overpotential Electroreduction of Carbon Monoxide Using Copper Nanowires

David Raciti; Liang Cao; Kenneth J.T. Livi; Paul F. Rottmann; Xin Tang; Chenyang Li; Zachary Hicks; Kit H. Bowen; Kevin J. Hemker; Tim Mueller; Chao Wang

doi:10.1021/acscatal.7b01124

Low-Overpotential Electroreduction of Carbon Monoxide Using Copper Nanowires

David Raciti, Liang Cao, Kenneth J.T. Livi, Paul F. Rottmann, Xin Tang, Chenyang Li, Zachary Hicks, Kit H. Bowen, Kevin J. Hemker, Tim Mueller, Chao Wang

Research output: Contribution to journal › Article › peer-review

137 Citations (SciVal)

Abstract

We report on Cu nanowires as highly active and selective catalysts for electroreduction of CO at low overpotentials. The Cu nanowires were synthesized by reducing pregrown CuO nanowires, with the surface structures tailored by tuning the reduction conditions for improved catalytic performance. The optimized Cu nanowires achieved 65% faradaic efficiency (FE) for CO reduction and 50% FE toward production of ethanol at potentials more positive than -0.5 V (versus reversible hydrogen electrode, RHE). Structural analyses and computational simulations suggest that the CO reduction activity may be associated with the coordinately unsaturated (110) surface sites on the Cu nanowires.

Original language	English
Pages (from-to)	4467-4472
Number of pages	6
Journal	ACS Catalysis
Volume	7
Issue number	7
DOIs	https://doi.org/10.1021/acscatal.7b01124
State	Published - Jul 7 2017

Bibliographical note

Publisher Copyright:
© 2017 American Chemical Society.

Keywords

carbon monoxide
copper nanowires
electroreduction

ASJC Scopus subject areas

Catalysis
General Chemistry

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10.1021/acscatal.7b01124

Cite this

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title = "Low-Overpotential Electroreduction of Carbon Monoxide Using Copper Nanowires",

abstract = "We report on Cu nanowires as highly active and selective catalysts for electroreduction of CO at low overpotentials. The Cu nanowires were synthesized by reducing pregrown CuO nanowires, with the surface structures tailored by tuning the reduction conditions for improved catalytic performance. The optimized Cu nanowires achieved 65% faradaic efficiency (FE) for CO reduction and 50% FE toward production of ethanol at potentials more positive than -0.5 V (versus reversible hydrogen electrode, RHE). Structural analyses and computational simulations suggest that the CO reduction activity may be associated with the coordinately unsaturated (110) surface sites on the Cu nanowires.",

keywords = "carbon monoxide, copper nanowires, electroreduction",

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T1 - Low-Overpotential Electroreduction of Carbon Monoxide Using Copper Nanowires

AU - Raciti, David

AU - Cao, Liang

AU - Livi, Kenneth J.T.

AU - Rottmann, Paul F.

AU - Tang, Xin

AU - Li, Chenyang

AU - Hicks, Zachary

AU - Bowen, Kit H.

AU - Hemker, Kevin J.

AU - Mueller, Tim

AU - Wang, Chao

PY - 2017/7/7

Y1 - 2017/7/7

N2 - We report on Cu nanowires as highly active and selective catalysts for electroreduction of CO at low overpotentials. The Cu nanowires were synthesized by reducing pregrown CuO nanowires, with the surface structures tailored by tuning the reduction conditions for improved catalytic performance. The optimized Cu nanowires achieved 65% faradaic efficiency (FE) for CO reduction and 50% FE toward production of ethanol at potentials more positive than -0.5 V (versus reversible hydrogen electrode, RHE). Structural analyses and computational simulations suggest that the CO reduction activity may be associated with the coordinately unsaturated (110) surface sites on the Cu nanowires.

AB - We report on Cu nanowires as highly active and selective catalysts for electroreduction of CO at low overpotentials. The Cu nanowires were synthesized by reducing pregrown CuO nanowires, with the surface structures tailored by tuning the reduction conditions for improved catalytic performance. The optimized Cu nanowires achieved 65% faradaic efficiency (FE) for CO reduction and 50% FE toward production of ethanol at potentials more positive than -0.5 V (versus reversible hydrogen electrode, RHE). Structural analyses and computational simulations suggest that the CO reduction activity may be associated with the coordinately unsaturated (110) surface sites on the Cu nanowires.

KW - carbon monoxide

KW - copper nanowires

KW - electroreduction

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JO - ACS Catalysis

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Low-Overpotential Electroreduction of Carbon Monoxide Using Copper Nanowires

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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