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Fully-exposed Pt-Fe cluster for efficient preferential oxidation of CO towards hydrogen purification

Author

Listed:
  • Zhimin Jia

    (Chinese Academy of Sciences
    University of Science and Technology of China)

  • Xuetao Qin

    (Peking University)

  • Yunlei Chen

    (University of Chinese Academy of Science
    Chinese Academy of Sciences)

  • Xiangbin Cai

    (Hong Kong University of Science and Technology)

  • Zirui Gao

    (Peking University)

  • Mi Peng

    (Peking University)

  • Fei Huang

    (Chinese Academy of Sciences)

  • Dequan Xiao

    (University of New Haven)

  • Xiaodong Wen

    (University of Chinese Academy of Science
    Chinese Academy of Sciences)

  • Ning Wang

    (Hong Kong University of Science and Technology)

  • Zheng Jiang

    (Chinese Academy of Sciences)

  • Wu Zhou

    (University of Chinese Academy of Sciences)

  • Hongyang Liu

    (Chinese Academy of Sciences
    University of Science and Technology of China)

  • Ding Ma

    (Peking University)

Abstract

Hydrogen is increasingly being discussed as clean energy for the goal of net-zero carbon emissions, applied in the proton-exchange-membrane fuel cells (PEMFC). The preferential oxidation of CO (PROX) in hydrogen is a promising solution for hydrogen purification to avoid catalysts from being poisoned by the trace amount of CO in hydrogen-rich fuel gas. Here, we report the fabrication of a novel bimetallic Pt-Fe catalyst with ultralow metal loading, in which fully-exposed Pt clusters bonded with neighbor atomically dispersed Fe atoms on the defective graphene surface. The fully-exposed PtFe cluster catalyst could achieve complete elimination of CO through PROX reaction and almost 100% CO selectivity, while maintaining good stability for a long period. It has the mass-specific activity of 6.19 (molCO)*(gPt)−1*h−1 at room temperature, which surpasses those reported in literatures. The exhaustive experimental results and theoretical calculations reveal that the construction of fully-exposed bimetallic Pt-Fe cluster catalysts with maximized atomic efficiency and abundant interfacial sites could facilitate oxygen activation on unsaturated Fe species and CO adsorption on electron-rich Pt clusters to hence the probability of CO oxidation, leading to excellent reactivity in practical applications.

Suggested Citation

  • Zhimin Jia & Xuetao Qin & Yunlei Chen & Xiangbin Cai & Zirui Gao & Mi Peng & Fei Huang & Dequan Xiao & Xiaodong Wen & Ning Wang & Zheng Jiang & Wu Zhou & Hongyang Liu & Ding Ma, 2022. "Fully-exposed Pt-Fe cluster for efficient preferential oxidation of CO towards hydrogen purification," Nature Communications, Nature, vol. 13(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-34674-y
    DOI: 10.1038/s41467-022-34674-y
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    References listed on IDEAS

    as
    1. Fei Huang & Yuchen Deng & Yunlei Chen & Xiangbin Cai & Mi Peng & Zhimin Jia & Jinglin Xie & Dequan Xiao & Xiaodong Wen & Ning Wang & Zheng Jiang & Hongyang Liu & Ding Ma, 2019. "Anchoring Cu1 species over nanodiamond-graphene for semi-hydrogenation of acetylene," Nature Communications, Nature, vol. 10(1), pages 1-7, December.
    2. Lina Cao & Wei Liu & Qiquan Luo & Ruoting Yin & Bing Wang & Jonas Weissenrieder & Markus Soldemo & Huan Yan & Yue Lin & Zhihu Sun & Chao Ma & Wenhua Zhang & Si Chen & Hengwei Wang & Qiaoqiao Guan & Ta, 2019. "Atomically dispersed iron hydroxide anchored on Pt for preferential oxidation of CO in H2," Nature, Nature, vol. 565(7741), pages 631-635, January.
    3. Lili Lin & Wu Zhou & Rui Gao & Siyu Yao & Xiao Zhang & Wenqian Xu & Shijian Zheng & Zheng Jiang & Qiaolin Yu & Yong-Wang Li & Chuan Shi & Xiao-Dong Wen & Ding Ma, 2017. "Low-temperature hydrogen production from water and methanol using Pt/α-MoC catalysts," Nature, Nature, vol. 544(7648), pages 80-83, April.
    4. Xi Zhang & Guoqing Cui & Haisong Feng & Lifang Chen & Hui Wang & Bin Wang & Xin Zhang & Lirong Zheng & Song Hong & Min Wei, 2019. "Platinum–copper single atom alloy catalysts with high performance towards glycerol hydrogenolysis," Nature Communications, Nature, vol. 10(1), pages 1-12, December.
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    1. Zhongzhe Wei & Zijiang Zhao & Chenglong Qiu & Songtao Huang & Zihao Yao & Mingxuan Wang & Yi Chen & Yue Lin & Xing Zhong & Xiaonian Li & Jianguo Wang, 2023. "Tripodal Pd metallenes mediated by Nb2C MXenes for boosting alkynes semihydrogenation," Nature Communications, Nature, vol. 14(1), pages 1-11, December.

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