Electrochemical reduction of CO2 on core-shell Cu/Au nanostructure arrays for syngas production

Kun Chen; Xinyi Zhang; Tim Williams; Laure Bourgeois; Douglas R. MacFarlane

doi:10.1016/j.electacta.2017.04.019

Electrochemical reduction of CO₂ on core-shell Cu/Au nanostructure arrays for syngas production

Kun Chen, Xinyi Zhang, Tim Williams, Laure Bourgeois, Douglas R. MacFarlane^*

^*此作品的通讯作者

Monash University

科研成果: 期刊稿件 › 文章 › 同行评审

65 引用（Scopus）

摘要

Electrocatalytically converting CO₂ to hydrocarbons is a very attractive way to use the excess electricity generated from renewable energies. In this paper, we report the electrochemical reduction of CO₂ based on Cu nanowire arrays. The Cu nanostructured electrode shows much higher current density than polycrystalline Cu. By sputter coating a thin layer of Au on the Cu nanowires, the Faradaic efficiency (FE) of CO can exceed 30%. At an overpotential of 540 mV with respect to the formation of CO, the Cu/Au core-shell nanowire array electrode catalyses the formation of syngas, a very useful gas mixture, with a stable CO/H₂ ratio.

源语言	英语
页（从-至）	84-89
页数	6
期刊	Electrochimica Acta
卷	239
DOI	https://doi.org/10.1016/j.electacta.2017.04.019
出版状态	已出版 - 10 6月 2017
已对外发布	是

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10.1016/j.electacta.2017.04.019

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Chen, K., Zhang, X., Williams, T., Bourgeois, L., & MacFarlane, D. R. (2017). Electrochemical reduction of CO₂ on core-shell Cu/Au nanostructure arrays for syngas production. Electrochimica Acta, 239, 84-89. https://doi.org/10.1016/j.electacta.2017.04.019

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title = "Electrochemical reduction of CO2 on core-shell Cu/Au nanostructure arrays for syngas production",

abstract = "Electrocatalytically converting CO2 to hydrocarbons is a very attractive way to use the excess electricity generated from renewable energies. In this paper, we report the electrochemical reduction of CO2 based on Cu nanowire arrays. The Cu nanostructured electrode shows much higher current density than polycrystalline Cu. By sputter coating a thin layer of Au on the Cu nanowires, the Faradaic efficiency (FE) of CO can exceed 30%. At an overpotential of 540 mV with respect to the formation of CO, the Cu/Au core-shell nanowire array electrode catalyses the formation of syngas, a very useful gas mixture, with a stable CO/H2 ratio.",

keywords = "CO reduction, core-shell Cu/Au nanostructures, faradaic efficiency, syngas",

author = "Kun Chen and Xinyi Zhang and Tim Williams and Laure Bourgeois and MacFarlane, {Douglas R.}",

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T1 - Electrochemical reduction of CO2 on core-shell Cu/Au nanostructure arrays for syngas production

AU - Chen, Kun

AU - Zhang, Xinyi

AU - Williams, Tim

AU - Bourgeois, Laure

AU - MacFarlane, Douglas R.

PY - 2017/6/10

Y1 - 2017/6/10

N2 - Electrocatalytically converting CO2 to hydrocarbons is a very attractive way to use the excess electricity generated from renewable energies. In this paper, we report the electrochemical reduction of CO2 based on Cu nanowire arrays. The Cu nanostructured electrode shows much higher current density than polycrystalline Cu. By sputter coating a thin layer of Au on the Cu nanowires, the Faradaic efficiency (FE) of CO can exceed 30%. At an overpotential of 540 mV with respect to the formation of CO, the Cu/Au core-shell nanowire array electrode catalyses the formation of syngas, a very useful gas mixture, with a stable CO/H2 ratio.

AB - Electrocatalytically converting CO2 to hydrocarbons is a very attractive way to use the excess electricity generated from renewable energies. In this paper, we report the electrochemical reduction of CO2 based on Cu nanowire arrays. The Cu nanostructured electrode shows much higher current density than polycrystalline Cu. By sputter coating a thin layer of Au on the Cu nanowires, the Faradaic efficiency (FE) of CO can exceed 30%. At an overpotential of 540 mV with respect to the formation of CO, the Cu/Au core-shell nanowire array electrode catalyses the formation of syngas, a very useful gas mixture, with a stable CO/H2 ratio.

KW - CO reduction

KW - core-shell Cu/Au nanostructures

KW - faradaic efficiency

KW - syngas

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DO - 10.1016/j.electacta.2017.04.019

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VL - 239

SP - 84

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JO - Electrochimica Acta

JF - Electrochimica Acta

ER -

Electrochemical reduction of CO2 on core-shell Cu/Au nanostructure arrays for syngas production

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Electrochemical reduction of CO₂ on core-shell Cu/Au nanostructure arrays for syngas production