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Isolated Diatomic Ni‐Fe Metal–Nitrogen Sites for Synergistic Electroreduction of CO2

Open access
Ren, Wenhao, Tan, Xin, Yang, Wanfeng, Jia, Chen, Xu, Shumao, Wang, Kaixue, Smith, Sean C., Zhao, Chuan·2019·Angewandte Chemie International Edition

Abstract

Polynary single‐atom structures can combine the advantages of homogeneous and heterogeneous catalysts while providing synergistic functions based on different molecules and their interfaces. However, the fabrication and identification of such an active‐site prototype remain elusive. Here we report isolated diatomic Ni‐Fe sites anchored on nitrogenated carbon as an efficient electrocatalyst for CO 2 reduction. The catalyst exhibits high selectivity with CO Faradaic efficiency above 90 % over a wide potential range from −0.5 to −0.9 V (98 % at −0.7 V), and robust durability, retaining 99 % of its initial selectivity after 30 hours of electrolysis. Density functional theory studies reveal that the neighboring Ni‐Fe centers not only function in synergy to decrease the reaction barrier for the formation of COOH* and desorption of CO, but also undergo distinct structural evolution into a CO‐adsorbed moiety upon CO 2 uptake.

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Metadata

Authors
Ren, W., Tan, X., Yang, W., Jia, C., Xu, S., Wang, K., Smith, S. C., & Zhao, C.
Venue
Angewandte Chemie International Edition
Publisher
Wiley
Published
2019-04-17
Volume
58
Issue
21
Pages
6972-6976
ISSN
  • 1433-7851 (ISSN-L)
  • 1521-3773
OpenAlex
W2933816311
Cited by
1,036
References
5
FWCI
25.30
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Isolated Diatomic Ni‐Fe Metal–Nitrogen Sites for Synergistic Electroreduction of CO2. https://app.cochat.ai/papers/10.1002/anie.201901575
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Ren, W., Tan, X., Yang, W., Jia, C., Xu, S., Wang, K., Smith, S. C., & Zhao, C. (2019). Isolated Diatomic Ni‐Fe Metal–Nitrogen Sites for Synergistic Electroreduction of CO2. Angewandte Chemie International Edition. https://doi.org/10.1002/anie.201901575

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