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Bottom-up precise synthesis of stable platinum dimers on graphene

Author

Listed:
  • Huan Yan

    (University of Science and Technology of China)

  • Yue Lin

    (University of Science and Technology of China)

  • Hong Wu

    (University of Science and Technology of China)

  • Wenhua Zhang

    (University of Science and Technology of China)

  • Zhihu Sun

    (University of Science and Technology of China)

  • Hao Cheng

    (University of Science and Technology of China)

  • Wei Liu

    (University of Science and Technology of China)

  • Chunlei Wang

    (University of Science and Technology of China)

  • Junjie Li

    (University of Science and Technology of China)

  • Xiaohui Huang

    (University of Science and Technology of China)

  • Tao Yao

    (University of Science and Technology of China)

  • Jinlong Yang

    (University of Science and Technology of China
    University of Science and Technology of China)

  • Shiqiang Wei

    (University of Science and Technology of China)

  • Junling Lu

    (University of Science and Technology of China
    University of Science and Technology of China
    University of Science and Technology of China
    University of Science and Technology of China)

Abstract

Supported metal clusters containing only a few atoms are of great interest. Progress has been made in synthesis of metal single-atom catalysts. However, precise synthesis of metal dimers on high-surface area support remains a grand challenge. Here, we show that Pt2 dimers can be fabricated with a bottom–up approach on graphene using atomic layer deposition, through proper nucleation sites creation, Pt1 single-atom deposition and attaching a secondary Pt atom selectively on the preliminary one. Scanning transmission electron microscopy, x-ray absorption spectroscopy, and theoretical calculations suggest that the Pt2 dimers are likely in the oxidized form of Pt2Ox. In hydrolytic dehydrogenation of ammonia borane, Pt2 dimers exhibit a high specific rate of 2800 molH2 molPt −1 min−1 at room temperature, ~17- and 45-fold higher than graphene supported Pt single atoms and nanoparticles, respectively. These findings open an avenue to bottom–up fabrication of supported atomically precise ultrafine metal clusters for practical applications.

Suggested Citation

  • Huan Yan & Yue Lin & Hong Wu & Wenhua Zhang & Zhihu Sun & Hao Cheng & Wei Liu & Chunlei Wang & Junjie Li & Xiaohui Huang & Tao Yao & Jinlong Yang & Shiqiang Wei & Junling Lu, 2017. "Bottom-up precise synthesis of stable platinum dimers on graphene," Nature Communications, Nature, vol. 8(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_s41467-017-01259-z
    DOI: 10.1038/s41467-017-01259-z
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    Cited by:

    1. Yao, Qilu & Yang, Kangkang & Nie, Wendan & Li, Yaxing & Lu, Zhang-Hui, 2020. "Highly efficient hydrogen generation from hydrazine borane via a MoOx-promoted NiPd nanocatalyst," Renewable Energy, Elsevier, vol. 147(P1), pages 2024-2031.
    2. Min Zhou & Zhiqing Wang & Aohan Mei & Zifan Yang & Wen Chen & Siyong Ou & Shengyao Wang & Keqiang Chen & Peter Reiss & Kun Qi & Jingyuan Ma & Yueli Liu, 2023. "Photocatalytic CO2 reduction using La-Ni bimetallic sites within a covalent organic framework," Nature Communications, Nature, vol. 14(1), pages 1-12, December.
    3. Junjie Li & Ya-fei Jiang & Qi Wang & Cong-Qiao Xu & Duojie Wu & Mohammad Norouzi Banis & Keegan R. Adair & Kieran Doyle-Davis & Debora Motta Meira & Y. Zou Finfrock & Weihan Li & Lei Zhang & Tsun-Kong, 2021. "A general strategy for preparing pyrrolic-N4 type single-atom catalysts via pre-located isolated atoms," Nature Communications, Nature, vol. 12(1), pages 1-11, December.
    4. Xiaoning Wang & Lianming Zhao & Xuejin Li & Yong Liu & Yesheng Wang & Qiaofeng Yao & Jianping Xie & Qingzhong Xue & Zifeng Yan & Xun Yuan & Wei Xing, 2022. "Atomic-precision Pt6 nanoclusters for enhanced hydrogen electro-oxidation," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    5. Yan, Xianyao & Duan, Chenyu & Yu, Shuihua & Dai, Bing & Sun, Chaoying & Chu, Huaqiang, 2024. "Recent advances on CO2 reduction reactions using single-atom catalysts," Renewable and Sustainable Energy Reviews, Elsevier, vol. 190(PB).
    6. Peng Rao & Yijie Deng & Wenjun Fan & Junming Luo & Peilin Deng & Jing Li & Yijun Shen & Xinlong Tian, 2022. "Movable type printing method to synthesize high-entropy single-atom catalysts," Nature Communications, Nature, vol. 13(1), pages 1-9, December.

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