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Incorporating nitrogen atoms into cobalt nanosheets as a strategy to boost catalytic activity toward CO2 hydrogenation

Author

Listed:
  • Liangbing Wang

    (University of Science and Technology of China)

  • Wenbo Zhang

    (University of Science and Technology of China)

  • Xusheng Zheng

    (University of Science and Technology of China)

  • Yizhen Chen

    (University of Science and Technology of China)

  • Wenlong Wu

    (University of Science and Technology of China)

  • Jianxiang Qiu

    (University of Science and Technology of China)

  • Xiangchen Zhao

    (University of Science and Technology of China)

  • Xiao Zhao

    (University of Science and Technology of China)

  • Yizhou Dai

    (University of Science and Technology of China)

  • Jie Zeng

    (University of Science and Technology of China)

Abstract

Hydrogenation of CO2 into fuels and useful chemicals could help to reduce reliance on fossil fuels. Although great progress has been made over the past decades to improve the activity of catalysts for CO2 hydrogenation, more efficient catalysts, especially those based on non-noble metals, are desired. Here we incorporate N atoms into Co nanosheets to boost the catalytic activity toward CO2 hydrogenation. For the hydrogenation of CO2, Co4N nanosheets exhibited a turnover frequency of 25.6 h−1 in a slurry reactor under 32 bar pressure at 150 °C, which was 64 times that of Co nanosheets. The activation energy for Co4N nanosheets was 43.3 kJ mol−1, less than half of that for Co nanosheets. Mechanistic studies revealed that Co4N nanosheets were reconstructed into Co4NH x , wherein the amido-hydrogen atoms directly interacted with the CO2 to form HCOO* intermediates. In addition, the adsorbed H2O* activated amido-hydrogen atoms via the interaction of hydrogen bonds.

Suggested Citation

  • Liangbing Wang & Wenbo Zhang & Xusheng Zheng & Yizhen Chen & Wenlong Wu & Jianxiang Qiu & Xiangchen Zhao & Xiao Zhao & Yizhou Dai & Jie Zeng, 2017. "Incorporating nitrogen atoms into cobalt nanosheets as a strategy to boost catalytic activity toward CO2 hydrogenation," Nature Energy, Nature, vol. 2(11), pages 869-876, November.
    • Handle: RePEc:nat:natene:v:2:y:2017:i:11:d:10.1038_s41560-017-0015-x
    DOI: 10.1038/s41560-017-0015-x
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    Cited by:

    1. Qiaoxi Liu & Wenjie Xu & Hao Huang & Hongwei Shou & Jingxiang Low & Yitao Dai & Wanbing Gong & Youyou Li & Delong Duan & Wenqing Zhang & Yawen Jiang & Guikai Zhang & Dengfeng Cao & Kecheng Wei & Ran L, 2024. "Spectroscopic visualization of reversible hydrogen spillover between palladium and metal–organic frameworks toward catalytic semihydrogenation," Nature Communications, Nature, vol. 15(1), pages 1-9, December.
    2. Guo, Yang & Li, Tengfei & Li, Dan & Cheng, Jiahui, 2024. "Efficient reduction of CO2 to high value-added compounds via photo-thermal catalysis: Mechanisms, catalysts and apparatuses," Renewable and Sustainable Energy Reviews, Elsevier, vol. 189(PB).

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