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Designing covalent organic frameworks with Co-O4 atomic sites for efficient CO2 photoreduction

Author

Listed:
  • Qian Zhang

    (Henan Normal University)

  • Shuaiqi Gao

    (Henan Normal University)

  • Yingying Guo

    (Henan Normal University)

  • Huiyong Wang

    (Henan Normal University)

  • Jishi Wei

    (National University of Singapore)

  • Xiaofang Su

    (Henan Normal University)

  • Hucheng Zhang

    (Henan Normal University)

  • Zhimin Liu

    (Chinese Academy of Sciences)

  • Jianji Wang

    (Henan Normal University)

Abstract

Cobalt coordinated covalent organic frameworks have attracted increasing interest in the field of CO2 photoreduction to CO, owing to their high electron affinity and predesigned structures. However, achieving high conversion efficiency is challenging since most Co related coordination environments facilitate fast recombination of photogenerated electron-hole pairs. Here, we design two kinds of Co-COF catalysts with oxygen coordinated Co atoms and find that after tuning of coordination environment, the reported Co framework catalyst with Co-O4 sites exhibits a high CO production rate of 18000 µmol g−1 h−1 with selectivity as high as 95.7% under visible light irradiation. From in/ex-situ spectral characterizations and theoretical calculations, it is revealed that the predesigned Co-O4 sites significantly facilitate the carrier migration in framework matrixes and inhibit the recombination of photogenerated electron-hole pairs in the photocatalytic process. This work opens a way for the design of high-performance catalysts for CO2 photoreduction.

Suggested Citation

  • Qian Zhang & Shuaiqi Gao & Yingying Guo & Huiyong Wang & Jishi Wei & Xiaofang Su & Hucheng Zhang & Zhimin Liu & Jianji Wang, 2023. "Designing covalent organic frameworks with Co-O4 atomic sites for efficient CO2 photoreduction," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-36779-4
    DOI: 10.1038/s41467-023-36779-4
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    References listed on IDEAS

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    1. Shengchang Xiang & Yabing He & Zhangjing Zhang & Hui Wu & Wei Zhou & Rajamani Krishna & Banglin Chen, 2012. "Microporous metal-organic framework with potential for carbon dioxide capture at ambient conditions," Nature Communications, Nature, vol. 3(1), pages 1-9, January.
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    Cited by:

    1. Yong Liu & Liangchao Yuan & Wenwen Chi & Wang-Kang Han & Jinfang Zhang & Huan Pang & Zhongchang Wang & Zhi-Guo Gu, 2024. "Cairo pentagon tessellated covalent organic frameworks with mcm topology for near-infrared phototherapy," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    2. Yao Chai & Yuehua Kong & Min Lin & Wei Lin & Jinni Shen & Jinlin Long & Rusheng Yuan & Wenxin Dai & Xuxu Wang & Zizhong Zhang, 2023. "Metal to non-metal sites of metallic sulfides switching products from CO to CH4 for photocatalytic CO2 reduction," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    3. xu, Guiying & Qian, Haifeng & Zhang, Qi & R Alsenani, Theyab & Bouzgarrou, Souhail & Alturise, Fahad, 2024. "Integration of biomass gasification and O2/H2 separation membranes for H2 production/separation with inherent CO2 capture: Techno-economic evaluation and artificial neural network based multi-objectiv," Renewable Energy, Elsevier, vol. 224(C).

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