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Dynamic structure of active sites in ceria-supported Pt catalysts for the water gas shift reaction

Author

Listed:
  • Yuanyuan Li

    (Stony Brook University)

  • Matthew Kottwitz

    (University of Illinois)

  • Joshua L. Vincent

    (Arizona State University)

  • Michael J. Enright

    (University of Illinois)

  • Zongyuan Liu

    (Chemistry Division, Brookhaven National Laboratory)

  • Lihua Zhang

    (Center for Functional Nanomaterials, Brookhaven National Laboratory)

  • Jiahao Huang

    (Stony Brook University)

  • Sanjaya D. Senanayake

    (Chemistry Division, Brookhaven National Laboratory)

  • Wei-Chang D. Yang

    (National Institute of Standards and Technology
    University of Maryland)

  • Peter A. Crozier

    (Arizona State University)

  • Ralph G. Nuzzo

    (University of Illinois
    KTH Royal Institute of Technology)

  • Anatoly I. Frenkel

    (Stony Brook University
    Chemistry Division, Brookhaven National Laboratory)

Abstract

Oxide-supported noble metal catalysts have been extensively studied for decades for the water gas shift (WGS) reaction, a catalytic transformation central to a host of large volume processes that variously utilize or produce hydrogen. There remains considerable uncertainty as to how the specific features of the active metal-support interfacial bonding—perhaps most importantly the temporal dynamic changes occurring therein—serve to enable high activity and selectivity. Here we report the dynamic characteristics of a Pt/CeO2 system at the atomic level for the WGS reaction and specifically reveal the synergistic effects of metal-support bonding at the perimeter region. We find that the perimeter Pt0 − O vacancy−Ce3+ sites are formed in the active structure, transformed at working temperatures and their appearance regulates the adsorbate behaviors. We find that the dynamic nature of this site is a key mechanistic step for the WGS reaction.

Suggested Citation

  • Yuanyuan Li & Matthew Kottwitz & Joshua L. Vincent & Michael J. Enright & Zongyuan Liu & Lihua Zhang & Jiahao Huang & Sanjaya D. Senanayake & Wei-Chang D. Yang & Peter A. Crozier & Ralph G. Nuzzo & An, 2021. "Dynamic structure of active sites in ceria-supported Pt catalysts for the water gas shift reaction," Nature Communications, Nature, vol. 12(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-21132-4
    DOI: 10.1038/s41467-021-21132-4
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    Cited by:

    1. Sai Zhang & Yuxuan Liu & Mingkai Zhang & Yuanyuan Ma & Jun Hu & Yongquan Qu, 2022. "Sustainable production of hydrogen with high purity from methanol and water at low temperatures," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    2. Hao Meng & Yusen Yang & Tianyao Shen & Wei Liu & Lei Wang & Pan Yin & Zhen Ren & Yiming Niu & Bingsen Zhang & Lirong Zheng & Hong Yan & Jian Zhang & Feng-Shou Xiao & Min Wei & Xue Duan, 2023. "A strong bimetal-support interaction in ethanol steam reforming," Nature Communications, Nature, vol. 14(1), pages 1-13, December.
    3. Dongpeng Zhang & Yanxiao Li & Pengfei Wang & Jinyong Qu & Yi Li & Sihui Zhan, 2023. "Dynamic active-site induced by host-guest interactions boost the Fenton-like reaction for organic wastewater treatment," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    4. Yacheng Shi & Yang Liu, 2024. "Qualitative and quantitative electrochemiluminescence evaluation of trace Pt single-atom in MXenes," Nature Communications, Nature, vol. 15(1), pages 1-7, December.
    5. Hao-Xin Liu & Jin-Ying Li & Xuetao Qin & Chao Ma & Wei-Wei Wang & Kai Xu & Han Yan & Dequan Xiao & Chun-Jiang Jia & Qiang Fu & Ding Ma, 2022. "Ptn–Ov synergistic sites on MoOx/γ-Mo2N heterostructure for low-temperature reverse water–gas shift reaction," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    6. Eugenio Meloni & Marco Martino & Giuseppina Iervolino & Concetta Ruocco & Simona Renda & Giovanni Festa & Vincenzo Palma, 2022. "The Route from Green H 2 Production through Bioethanol Reforming to CO 2 Catalytic Conversion: A Review," Energies, MDPI, vol. 15(7), pages 1-36, March.

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