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Carbon dioxide electroreduction to C2 products over copper-cuprous oxide derived from electrosynthesized copper complex

Open access
Zhu, Qinggong, Sun, Xiaofu, Yang, Dexin, Ma, Jun, Kang, Xinchen, Zheng, Lirong, Zhang, Jing, Wu, Zhonghua, Han, Buxing·2019·Nature Communications

Abstract

Efficient electroreduction of carbon dioxide to multicarbon products in aqueous solution is of great importance and challenging. Unfortunately, the low efficiency of the production of C 2 products limits implementation at scale. Here, we report reduction of carbon dioxide to C 2 products (acetic acid and ethanol) over a 3D dendritic copper-cuprous oxide composite fabricated by in situ reduction of an electrodeposited copper complex. In potassium chloride aqueous electrolyte, the applied potential was as low as −0.4 V vs reversible hydrogen electrode, the overpotential is only 0.53 V (for acetic acid) and 0.48 V (for ethanol) with high C 2 Faradaic efficiency of 80% and a current density of 11.5 mA cm−2. The outstanding performance of the electrode for producing the C 2 products results mainly from near zero contacting resistance between the electrocatalysts and copper substrate, abundant exposed active sites in the 3D dendritic structure and suitable copper(I)/copper(0) ratio of the electrocatalysts.

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Metadata

Authors
Zhu, Q., Sun, X., Yang, D., Ma, J., Kang, X., Zheng, L., Zhang, J., Wu, Z., & Han, B.
Venue
Nature Communications
Published
2019-08-26
Volume
10
Issue
1
Pages
3851-3851
ISSN
2041-1723 (ISSN-L)
OpenAlex
W2970220256
Cited by
440
References
14
FWCI
11.44
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: Carbon dioxide electroreduction to C2 products over copper-cuprous oxide derived from electrosynthesized copper complex. https://app.cochat.ai/papers/10.1038/s41467-019-11599-7
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Zhu, Q., Sun, X., Yang, D., Ma, J., Kang, X., Zheng, L., Zhang, J., Wu, Z., & Han, B. (2019). Carbon dioxide electroreduction to C2 products over copper-cuprous oxide derived from electrosynthesized copper complex. Nature Communications. https://doi.org/10.1038/s41467-019-11599-7

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