Electrochemical Reduction of CO2 on Hollow Cubic Cu2O@Au Nanocomposites

Wei Tan; Bo Cao; Wenqiu Xiao; Min Zhang; Shoushan Wang; Shilei Xie; Dong Xie; Faliang Cheng; Qingquan Guo; Peng Liu

doi:10.1186/s11671-019-2892-3

Nanoscale Research Letters (Feb 2019)

Electrochemical Reduction of CO2 on Hollow Cubic Cu2O@Au Nanocomposites

Wei Tan,
Bo Cao,
Wenqiu Xiao,
Min Zhang,
Shoushan Wang,
Shilei Xie,
Dong Xie,
Faliang Cheng,
Qingquan Guo,
Peng Liu

Affiliations

Wei Tan: Guangdong Engineering and Technology Research Center for Advanced Nanomaterials, School of Environment and Civil Engineering, Dongguan University of Technology
Bo Cao: Guangdong Engineering and Technology Research Center for Advanced Nanomaterials, School of Environment and Civil Engineering, Dongguan University of Technology
Wenqiu Xiao: Guangdong Engineering and Technology Research Center for Advanced Nanomaterials, School of Environment and Civil Engineering, Dongguan University of Technology
Min Zhang: Guangdong Engineering and Technology Research Center for Advanced Nanomaterials, School of Environment and Civil Engineering, Dongguan University of Technology
Shoushan Wang: Guangdong Engineering and Technology Research Center for Advanced Nanomaterials, School of Environment and Civil Engineering, Dongguan University of Technology
Shilei Xie: Guangdong Engineering and Technology Research Center for Advanced Nanomaterials, School of Environment and Civil Engineering, Dongguan University of Technology
Dong Xie: Guangdong Engineering and Technology Research Center for Advanced Nanomaterials, School of Environment and Civil Engineering, Dongguan University of Technology
Faliang Cheng: Guangdong Engineering and Technology Research Center for Advanced Nanomaterials, School of Environment and Civil Engineering, Dongguan University of Technology
Qingquan Guo: School of Chemical Engineering and Light Industry, Guangdong University of Technology
Peng Liu: Guangdong Engineering and Technology Research Center for Advanced Nanomaterials, School of Environment and Civil Engineering, Dongguan University of Technology

DOI: https://doi.org/10.1186/s11671-019-2892-3
Journal volume & issue: Vol. 14, no. 1
pp. 1 – 7

Abstract

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Abstract Surfactant-free and low Au loading Cu2O@Au and Au hollow cubes, based on electrodeposited Cu2O cubes as sacrificed templates, were prepared by means of a galvanic replacement reaction (GRR). The electrocatalytical performance of the as-prepared catalysts towards carbon dioxide (CO2) electrochemical reduction was evaluated. The experimental results show that Cu2O@Au catalyst can convert CO2 to carbon monoxide (CO) with a maximum Faradaic efficiency (FE) of ~ 30.1% at the potential of − 1.0 V (vs. RHE) and is about twice the FE of the other catalysts at the same potential. By comparison, such electrocatalytical enhancement is attributed to the metal-oxide interface in Cu2O@Au.

Published in Nanoscale Research Letters

ISSN: 1931-7573 (Print); 1556-276X (Online)
Publisher: SpringerOpen
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: https://www.springer.com/journal/11671

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