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author:

Chen, Yangshen (Chen, Yangshen.) [1] | Lyu, Naixin (Lyu, Naixin.) [2] | Zhang, Junbo (Zhang, Junbo.) [3] | Yan, Shuai (Yan, Shuai.) [4] | Peng, Chen (Peng, Chen.) [5] | Yang, Chao (Yang, Chao.) [6] | Lv, Ximeng (Lv, Ximeng.) [7] | Hu, Cejun (Hu, Cejun.) [8] | Kuang, Min (Kuang, Min.) [9] | Zheng, Gengfeng (Zheng, Gengfeng.) [10]

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EI

Abstract:

In the electrochemical CO2 reduction reaction (CO2RR), the coverages of *CO and *H intermediates on a catalyst surface are critical for the selective generation of C1 or C2 products. In this work, we have synthesized several CuxZnyMnz ternary alloy electrocatalysts, including Cu8ZnMn, Cu8Zn6Mn, and Cu8ZnMn2, by varying the doping compositions of Zn and Mn, which are efficient in binding *CO and *H adsorbates in the CO2 electroreduction process, respectively. The increase of *H coverage allows to promotion of the CH4 and H2 formation, while the increase of the *CO coverage facilitates the production of C2H4 and CO. As a result, the Cu8ZnMn catalyst presented a high CO2-to-CH4 partial current density (−418 ± 22 mA cm−2) with a Faradaic efficiency of 55 ± 2.8%, while the Cu8Zn6Mn catalyst exhibited a CO2-to-C2H4 partial current density (−440 ± 41 mA cm−2) with a Faradaic efficiency of 58 ± 4.5%. The study suggests a useful strategy for rational design and fabrication of Cu electrocatalysts with different doping for tailoring the reduction products. © 2023 Wiley-VCH GmbH.

Keyword:

Carbon dioxide Copper alloys Efficiency Electrocatalysts Electrolytic reduction Manganese alloys Product design Ternary alloys Zinc alloys

Community:

  • [ 1 ] [Chen, Yangshen]Laboratory of Advanced Materials, Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai; 200438, China
  • [ 2 ] [Lyu, Naixin]Laboratory of Advanced Materials, Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai; 200438, China
  • [ 3 ] [Zhang, Junbo]Laboratory of Advanced Materials, Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai; 200438, China
  • [ 4 ] [Yan, Shuai]Laboratory of Advanced Materials, Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai; 200438, China
  • [ 5 ] [Peng, Chen]Laboratory of Advanced Materials, Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai; 200438, China
  • [ 6 ] [Yang, Chao]Laboratory of Advanced Materials, Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai; 200438, China
  • [ 7 ] [Lv, Ximeng]Laboratory of Advanced Materials, Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai; 200438, China
  • [ 8 ] [Hu, Cejun]School of Materials Science and Engineering, Fuzhou University, Fujian; 350108, China
  • [ 9 ] [Kuang, Min]State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai; 201620, China
  • [ 10 ] [Zheng, Gengfeng]Laboratory of Advanced Materials, Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai; 200438, China

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Small

ISSN: 1613-6810

Year: 2024

Issue: 15

Volume: 20

1 3 . 0 0 0

JCR@2023

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ESI Highly Cited Papers on the List: 0 Unfold All

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Chinese Cited Count:

30 Days PV: 1

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