Surface-reconstructed Cu Electrode via a Facile Electrochemical Anodization-Reduction Process for Low Overpotential CO 2 reduction

Shixiong Min; Xiulin Yang; Ang-Yu Lu; Chien-Chih Tseng; Mohamed N. Hedhili; Zhiping Lai; Lain-Jong Li; Kuo-Wei Huang

doi:10.1016/j.jscs.2017.03.003

Surface-reconstructed Cu Electrode via a Facile Electrochemical Anodization-Reduction Process for Low Overpotential CO 2 reduction

Shixiong Min, Xiulin Yang, Ang-Yu Lu, Chien-Chih Tseng, Mohamed N. Hedhili, Zhiping Lai, Lain-Jong Li, Kuo-Wei Huang

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Abstract

A high-surface-area Cu electrode, fabricated by a simple electrochemical anodization-reduction method, exhibits high activity and selectivity for CO2 reduction at low overpotential in 0.1 M KHCO3 solution. A faradaic efficiency of 37% for HCOOH and 27% for CO production was achieved with the current density of 1.5 mA cm-2 at −0.64 V vs. RHE, much higher than that of polycrystalline Cu. The enhanced catalytic performance is a result of the formation of the high electrochemical active surface area and high density of preferred low-index facets.

Original language	English (US)
Pages (from-to)	708-712
Number of pages	5
Journal	Journal of Saudi Chemical Society
Volume	21
Issue number	6
DOIs	https://doi.org/10.1016/j.jscs.2017.03.003
State	Published - Mar 21 2017

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This work was supported by the King Abdullah University of Science and Technology (KAUST) and the National Natural Science Foundation of China (grant no. 21463001).

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10.1016/j.jscs.2017.03.003

https://repository.kaust.edu.sa/bitstream/10754/623111/1/1-s2.0-S1319610317300388-main.pdf

Cite this

@article{24d9e143238e4c789c55fad68b0de3fa,

title = "Surface-reconstructed Cu Electrode via a Facile Electrochemical Anodization-Reduction Process for Low Overpotential CO 2 reduction",

abstract = "A high-surface-area Cu electrode, fabricated by a simple electrochemical anodization-reduction method, exhibits high activity and selectivity for CO2 reduction at low overpotential in 0.1 M KHCO3 solution. A faradaic efficiency of 37% for HCOOH and 27% for CO production was achieved with the current density of 1.5 mA cm-2 at −0.64 V vs. RHE, much higher than that of polycrystalline Cu. The enhanced catalytic performance is a result of the formation of the high electrochemical active surface area and high density of preferred low-index facets.",

author = "Shixiong Min and Xiulin Yang and Ang-Yu Lu and Chien-Chih Tseng and Hedhili, {Mohamed N.} and Zhiping Lai and Lain-Jong Li and Kuo-Wei Huang",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: This work was supported by the King Abdullah University of Science and Technology (KAUST) and the National Natural Science Foundation of China (grant no. 21463001).",

year = "2017",

month = mar,

day = "21",

doi = "10.1016/j.jscs.2017.03.003",

language = "English (US)",

volume = "21",

pages = "708--712",

journal = "Journal of Saudi Chemical Society",

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publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Surface-reconstructed Cu Electrode via a Facile Electrochemical Anodization-Reduction Process for Low Overpotential CO 2 reduction

AU - Min, Shixiong

AU - Yang, Xiulin

AU - Lu, Ang-Yu

AU - Tseng, Chien-Chih

AU - Hedhili, Mohamed N.

AU - Lai, Zhiping

AU - Li, Lain-Jong

AU - Huang, Kuo-Wei

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: This work was supported by the King Abdullah University of Science and Technology (KAUST) and the National Natural Science Foundation of China (grant no. 21463001).

PY - 2017/3/21

Y1 - 2017/3/21

N2 - A high-surface-area Cu electrode, fabricated by a simple electrochemical anodization-reduction method, exhibits high activity and selectivity for CO2 reduction at low overpotential in 0.1 M KHCO3 solution. A faradaic efficiency of 37% for HCOOH and 27% for CO production was achieved with the current density of 1.5 mA cm-2 at −0.64 V vs. RHE, much higher than that of polycrystalline Cu. The enhanced catalytic performance is a result of the formation of the high electrochemical active surface area and high density of preferred low-index facets.

AB - A high-surface-area Cu electrode, fabricated by a simple electrochemical anodization-reduction method, exhibits high activity and selectivity for CO2 reduction at low overpotential in 0.1 M KHCO3 solution. A faradaic efficiency of 37% for HCOOH and 27% for CO production was achieved with the current density of 1.5 mA cm-2 at −0.64 V vs. RHE, much higher than that of polycrystalline Cu. The enhanced catalytic performance is a result of the formation of the high electrochemical active surface area and high density of preferred low-index facets.

UR - http://hdl.handle.net/10754/623111

UR - http://www.sciencedirect.com/science/article/pii/S1319610317300388

UR - http://www.scopus.com/inward/record.url?scp=85016477215&partnerID=8YFLogxK

U2 - 10.1016/j.jscs.2017.03.003

DO - 10.1016/j.jscs.2017.03.003

M3 - Article

SN - 1319-6103

VL - 21

SP - 708

EP - 712

JO - Journal of Saudi Chemical Society

JF - Journal of Saudi Chemical Society

IS - 6

ER -

Surface-reconstructed Cu Electrode via a Facile Electrochemical Anodization-Reduction Process for Low Overpotential CO 2 reduction

Abstract

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