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Rare-earth–platinum alloy nanoparticles in mesoporous zeolite for catalysis

Author

Listed:
  • Ryong Ryoo

    (Institute for Basic Science (IBS)
    Korea Advanced Institute of Science and Technology (KAIST))

  • Jaeheon Kim

    (Institute for Basic Science (IBS))

  • Changbum Jo

    (Institute for Basic Science (IBS)
    Inha University)

  • Seung Won Han

    (Institute for Basic Science (IBS)
    Korea Advanced Institute of Science and Technology (KAIST))

  • Jeong-Chul Kim

    (Institute for Basic Science (IBS))

  • Hongjun Park

    (Institute for Basic Science (IBS)
    Korea Advanced Institute of Science and Technology (KAIST))

  • Jongho Han

    (Institute for Basic Science (IBS)
    Korea Advanced Institute of Science and Technology (KAIST))

  • Hye Sun Shin

    (Institute for Basic Science (IBS)
    Korea Advanced Institute of Science and Technology (KAIST)
    Research Institute of Industrial Science and Technology (RIST))

  • Jae Won Shin

    (Institute for Basic Science (IBS))

Abstract

Platinum is a much used catalyst that, in petrochemical processes, is often alloyed with other metals to improve catalytic activity, selectivity and longevity1–5. Such catalysts are usually prepared in the form of metallic nanoparticles supported on porous solids, and their production involves reducing metal precursor compounds under a H2 flow at high temperatures6. The method works well when using easily reducible late transition metals, but Pt alloy formation with rare-earth elements through the H2 reduction route is almost impossible owing to the low chemical potential of rare-earth element oxides6. Here we use as support a mesoporous zeolite that has pore walls with surface framework defects (called ‘silanol nests’) and show that the zeolite enables alloy formation between Pt and rare-earth elements. We find that the silanol nests enable the rare-earth elements to exist as single atomic species with a substantially higher chemical potential compared with that of the bulk oxide, making it possible for them to diffuse onto Pt. High-resolution transmission electron microscopy and hydrogen chemisorption measurements indicate that the resultant bimetallic nanoparticles supported on the mesoporous zeolite are intermetallic compounds, which we find to be stable, highly active and selective catalysts for the propane dehydrogenation reaction. When used with late transition metals, the same preparation strategy produces Pt alloy catalysts that incorporate an unusually large amount of the second metal and, in the case of the PtCo alloy, show high catalytic activity and selectivity in the preferential oxidation of carbon monoxide in H2.

Suggested Citation

  • Ryong Ryoo & Jaeheon Kim & Changbum Jo & Seung Won Han & Jeong-Chul Kim & Hongjun Park & Jongho Han & Hye Sun Shin & Jae Won Shin, 2020. "Rare-earth–platinum alloy nanoparticles in mesoporous zeolite for catalysis," Nature, Nature, vol. 585(7824), pages 221-224, September.
  • Handle: RePEc:nat:nature:v:585:y:2020:i:7824:d:10.1038_s41586-020-2671-4
    DOI: 10.1038/s41586-020-2671-4
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    Citations

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    Cited by:

    1. Xiaofeng Gao & Ling Zhu & Feng Yang & Lei Zhang & Wenhao Xu & Xian Zhou & Yongkang Huang & Houhong Song & Lili Lin & Xiaodong Wen & Ding Ma & Siyu Yao, 2023. "Subsurface nickel boosts the low-temperature performance of a boron oxide overlayer in propane oxidative dehydrogenation," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    2. Yifeng Liu & Zhiqiang Liu & Yu Hui & Liang Wang & Jian Zhang & Xianfeng Yi & Wei Chen & Chengtao Wang & Hai Wang & Yucai Qin & Lijuan Song & Anmin Zheng & Feng-Shou Xiao, 2023. "Rhodium nanoparticles supported on silanol-rich zeolites beyond the homogeneous Wilkinson’s catalyst for hydroformylation of olefins," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    3. Cui, Zhengxing & Wang, Yeqing & Zhang, Peipei & Lu, Song & Chen, Yuxuan & Yu, Xiaotao & Guo, Min & Liu, Tiancun & Ying, Jiadi & Shen, Qi & Jin, Yinying & Yu, Zhixin, 2024. "Stable Cuδ+ species - Catalyzed CO₂ hydrogenation to methanol in silanol nests on Cu/S-1 catalyst," Applied Energy, Elsevier, vol. 365(C).
    4. Feilong Xing & Jiamin Ma & Ken-ichi Shimizu & Shinya Furukawa, 2022. "High-entropy intermetallics on ceria as efficient catalysts for the oxidative dehydrogenation of propane using CO2," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    5. Jie Yao & Yingluo He & Yan Zeng & Xiaobo Feng & Jiaqi Fan & Shoya Komiyama & Xiaojing Yong & Wei Zhang & Tiejian Zhao & Zhongshan Guo & Xiaobo Peng & Guohui Yang & Noritatsu Tsubaki, 2022. "Ammonia pools in zeolites for direct fabrication of catalytic centers," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    6. Shuang Liu & Yong Li & Xiaojuan Yu & Shaobo Han & Yan Zhou & Yuqi Yang & Hao Zhang & Zheng Jiang & Chuwei Zhu & Wei-Xue Li & Christof Wöll & Yuemin Wang & Wenjie Shen, 2022. "Tuning crystal-phase of bimetallic single-nanoparticle for catalytic hydrogenation," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    7. 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.
    8. Yuzhu Ma & Hongjin Zhang & Runfeng Lin & Yan Ai & Kun Lan & Linlin Duan & Wenyao Chen & Xuezhi Duan & Bing Ma & Changyao Wang & Xiaomin Li & Dongyuan Zhao, 2022. "Remodeling nanodroplets into hierarchical mesoporous silica nanoreactors with multiple chambers," Nature Communications, Nature, vol. 13(1), pages 1-12, December.

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