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Thermally stable single atom Pt/m-Al2O3 for selective hydrogenation and CO oxidation

Author

Listed:
  • Zailei Zhang

    (National University of Singapore)

  • Yihan Zhu

    (Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology)

  • Hiroyuki Asakura

    (Graduate School of Engineering, Kyoto University
    Elements Strategy Initiative for Catalysts & Batteries (ESICB), Kyoto University)

  • Bin Zhang

    (National University of Singapore)

  • Jiaguang Zhang

    (National University of Singapore)

  • Maoxiang Zhou

    (State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences)

  • Yu Han

    (Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology
    KAUST Catalysis Center, King Abdullah University of Science and Technology)

  • Tsunehiro Tanaka

    (Graduate School of Engineering, Kyoto University
    Elements Strategy Initiative for Catalysts & Batteries (ESICB), Kyoto University)

  • Aiqin Wang

    (State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences)

  • Tao Zhang

    (State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences)

  • Ning Yan

    (National University of Singapore)

Abstract

Single-atom metal catalysts offer a promising way to utilize precious noble metal elements more effectively, provided that they are catalytically active and sufficiently stable. Herein, we report a synthetic strategy for Pt single-atom catalysts with outstanding stability in several reactions under demanding conditions. The Pt atoms are firmly anchored in the internal surface of mesoporous Al2O3, likely stabilized by coordinatively unsaturated pentahedral Al3+ centres. The catalyst keeps its structural integrity and excellent performance for the selective hydrogenation of 1,3-butadiene after exposure to a reductive atmosphere at 200 °C for 24 h. Compared to commercial Pt nanoparticle catalyst on Al2O3 and control samples, this system exhibits significantly enhanced stability and performance for n-hexane hydro-reforming at 550 °C for 48 h, although agglomeration of Pt single-atoms into clusters is observed after reaction. In CO oxidation, the Pt single-atom identity was fully maintained after 60 cycles between 100 and 400 °C over a one-month period.

Suggested Citation

  • Zailei Zhang & Yihan Zhu & Hiroyuki Asakura & Bin Zhang & Jiaguang Zhang & Maoxiang Zhou & Yu Han & Tsunehiro Tanaka & Aiqin Wang & Tao Zhang & Ning Yan, 2017. "Thermally stable single atom Pt/m-Al2O3 for selective hydrogenation and CO oxidation," Nature Communications, Nature, vol. 8(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms16100
    DOI: 10.1038/ncomms16100
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    Cited by:

    1. Tengfei Zhang & Peng Zheng & Jiajian Gao & Xiaolong Liu & Yongjun Ji & Junbo Tian & Yang Zou & Zhiyi Sun & Qiao Hu & Guokang Chen & Wenxing Chen & Xi Liu & Ziyi Zhong & Guangwen Xu & Tingyu Zhu & Fabi, 2024. "Simultaneously activating molecular oxygen and surface lattice oxygen on Pt/TiO2 for low-temperature CO oxidation," Nature Communications, Nature, vol. 15(1), pages 1-12, December.
    2. 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.
    3. Xiaowei Shi & Chao Dai & Xin Wang & Jiayue Hu & Junying Zhang & Lingxia Zheng & Liang Mao & Huajun Zheng & Mingshan Zhu, 2022. "Protruding Pt single-sites on hexagonal ZnIn2S4 to accelerate photocatalytic hydrogen evolution," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    4. Luning Chen & Pragya Verma & Kaipeng Hou & Zhiyuan Qi & Shuchen Zhang & Yi-Sheng Liu & Jinghua Guo & Vitalie Stavila & Mark D. Allendorf & Lansun Zheng & Miquel Salmeron & David Prendergast & Gabor A., 2022. "Reversible dehydrogenation and rehydrogenation of cyclohexane and methylcyclohexane by single-site platinum catalyst," Nature Communications, Nature, vol. 13(1), pages 1-9, December.

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