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author:

Wang, M. (Wang, M..) [1] | Huang, Y. (Huang, Y..) [2] | Song, L. (Song, L..) [3] | Wei, R. (Wei, R..) [4] | Hao, S. (Hao, S..) [5] | Liu, Z. (Liu, Z..) [6] | Hu, C. (Hu, C..) [7] | Li, B. (Li, B..) [8] | Lv, X. (Lv, X..) [9] | Yuan, P. (Yuan, P..) [10] | Zheng, G. (Zheng, G..) [11]

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Abstract:

The copper-based electrocatalysts feature attractive potentials of converting CO2 into multi-carbon (C2+) products, while the instability of Cu–O often induces the reduction of Cu+/Cu0 catalytic sites at the cathode and refrains the capability of stable electrolysis especially at high powers. In this work, we developed an Erbium (Er) oxide-modified Cu (Er–O–Cu) catalyst with enhanced covalency of Cu–O and more stable active sites. The f-p-d coupling strengthens the covalency of Cu–O, and the stability of Cu+ sites under electroreduction condition is critical for promoting the C–C coupling and improving the C2+ product selectivity. As a result, the Er–O–Cu sites exhibited a high Faradaic efficiency of C2+ products (FEC2+) of 86 % at 2200 mA cm−2, and a peak partial current density of |jC2+| of 1900 mA cm−2, comparable to the best reported values for the CO2-to-C2+ electroreduction. The CO2 electrolysis by the Er–O–Cu sites was further scaled up to 100 cm2 to achieve high-power (∼200 W) electrolysis with ethylene production rate of 16 mL min−1. © 2025 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences

Keyword:

Bonding covalency CO2 electroreduction Electronic regulation f-p-d coupling Multi-carbon products

Community:

  • [ 1 ] [Wang M.]Laboratory of Advanced Materials, State Key Laboratory of Porous Materials for Separation and Conversion, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai, Shanghai, 200438, China
  • [ 2 ] [Huang Y.]Laboratory of Advanced Materials, State Key Laboratory of Porous Materials for Separation and Conversion, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai, Shanghai, 200438, China
  • [ 3 ] [Song L.]Laboratory of Advanced Materials, State Key Laboratory of Porous Materials for Separation and Conversion, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai, Shanghai, 200438, China
  • [ 4 ] [Wei R.]Laboratory of Advanced Materials, State Key Laboratory of Porous Materials for Separation and Conversion, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai, Shanghai, 200438, China
  • [ 5 ] [Hao S.]Laboratory of Advanced Materials, State Key Laboratory of Porous Materials for Separation and Conversion, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai, Shanghai, 200438, China
  • [ 6 ] [Liu Z.]Laboratory of Advanced Materials, State Key Laboratory of Porous Materials for Separation and Conversion, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai, Shanghai, 200438, China
  • [ 7 ] [Hu C.]School of Materials Science and Engineering, Fuzhou University, Fujian, Fuzhou, 350108, China
  • [ 8 ] [Li B.]College of Materials Science and Engineering, Qingdao University of Science and Technology, Shandong, Qingdao, 266042, China
  • [ 9 ] [Lv X.]Laboratory of Advanced Materials, State Key Laboratory of Porous Materials for Separation and Conversion, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai, Shanghai, 200438, China
  • [ 10 ] [Yuan P.]School of Materials Science and Engineering, Fuzhou University, Fujian, Fuzhou, 350108, China
  • [ 11 ] [Zheng G.]Laboratory of Advanced Materials, State Key Laboratory of Porous Materials for Separation and Conversion, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai, Shanghai, 200438, China

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Source :

Journal of Energy Chemistry

ISSN: 2095-4956

Year: 2025

Volume: 108

Page: 239-245

1 4 . 0 0 0

JCR@2023

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ESI Highly Cited Papers on the List: 0 Unfold All

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30 Days PV: 0

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