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Single-atom Pt in intermetallics as an ultrastable and selective catalyst for propane dehydrogenation

Author

Listed:
  • Yuki Nakaya

    (Hokkaido University)

  • Jun Hirayama

    (Tokyo Metropolitan University
    Kyoto University)

  • Seiji Yamazoe

    (Tokyo Metropolitan University
    Kyoto University
    Japan Science and Technology Agency, PRESTO)

  • Ken-ichi Shimizu

    (Hokkaido University
    Kyoto University)

  • Shinya Furukawa

    (Hokkaido University
    Kyoto University
    Japan Science and Technology Agency, PRESTO)

Abstract

Propylene production via propane dehydrogenation (PDH) requires high reaction temperatures to obtain sufficient propylene yields, which results to prominent catalyst deactivation due to coke formation. Developing highly stable catalysts for PDH without deactivation even at high temperatures is of great interest and benefit for industry. Here, we report that single-atom Pt included in thermally stable intermetallic PtGa works as an ultrastable and selective catalyst for PDH at high temperatures. Intermetallic PtGa displays three-hold-Pt ensembles and single Pt atoms isolated by catalytically inert Ga at the surface, the former of which can be selectively blocked and disabled by Pb deposition. The PtGa-Pb/SiO2 catalyst exhibits 30% conversion with 99.6% propylene selectivity at 600 °C for 96 h without lowering the performance. The single-atom Pt well catalyzes the first and second C–H activation, while effectively inhibits the third one, which minimizes the side reactions to coke and drastically improves the selectivity and stability.

Suggested Citation

  • Yuki Nakaya & Jun Hirayama & Seiji Yamazoe & Ken-ichi Shimizu & Shinya Furukawa, 2020. "Single-atom Pt in intermetallics as an ultrastable and selective catalyst for propane dehydrogenation," Nature Communications, Nature, vol. 11(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-16693-9
    DOI: 10.1038/s41467-020-16693-9
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    Cited by:

    1. Tian-Wei Song & Cong Xu & Zhu-Tao Sheng & Hui-Kun Yan & Lei Tong & Jun Liu & Wei-Jie Zeng & Lu-Jie Zuo & Peng Yin & Ming Zuo & Sheng-Qi Chu & Ping Chen & Hai-Wei Liang, 2022. "Small molecule-assisted synthesis of carbon supported platinum intermetallic fuel cell catalysts," Nature Communications, Nature, vol. 13(1), pages 1-11, December.
    2. Changhai Lu & Daotong You & Juan Li & Long Wen & Baojun Li & Tuan Guo & Zaizhu Lou, 2022. "Full-spectrum nonmetallic plasmonic carriers for efficient isopropanol dehydration," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    3. Yong Yuan & Erwei Huang & Sooyeon Hwang & Ping Liu & Jingguang G. Chen, 2024. "Confining platinum clusters in indium-modified ZSM-5 zeolite to promote propane dehydrogenation," Nature Communications, Nature, vol. 15(1), pages 1-15, December.

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