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Redox-induced controllable engineering of MnO2-MnxCo3-xO4 interface to boost catalytic oxidation of ethane

Author

Listed:
  • Haiyan Wang

    (Dalian University of Technology)

  • Shuang Wang

    (Dalian University of Technology)

  • Shida Liu

    (SINOPEC Dalian (Fushun) Research Institute of Petroleum and Petrochemicals)

  • Yiling Dai

    (Tsinghua University)

  • Zhenghao Jia

    (Chinese Academy of Sciences)

  • Xuejing Li

    (SINOPEC Dalian (Fushun) Research Institute of Petroleum and Petrochemicals)

  • Shuhe Liu

    (SINOPEC Dalian (Fushun) Research Institute of Petroleum and Petrochemicals)

  • Feixiong Dang

    (Dalian University of Technology)

  • Kevin J. Smith

    (University of British Columbia)

  • Xiaowa Nie

    (Dalian University of Technology)

  • Shuandi Hou

    (SINOPEC Dalian (Fushun) Research Institute of Petroleum and Petrochemicals)

  • Xinwen Guo

    (Dalian University of Technology)

Abstract

Multicomponent oxides are intriguing materials in heterogeneous catalysis, and the interface between various components often plays an essential role in oxidations. However, the underlying principles of how the hetero-interface affects the catalytic process remain largely unexplored. Here we report a unique structure design of MnCoOx catalysts by chemical reduction, specifically for ethane oxidation. Part of the Mn ions incorporates with Co oxides to form spinel MnxCo3-xO4, while the rests stay as MnO2 domains to create the MnO2-MnxCo3-xO4 interface. MnCoOx with Mn/Co ratio of 0.5 exhibits an excellent activity and stability up to 1000 h under humid conditions. The synergistic effects between MnO2 and MnxCo3-xO4 are elucidated, in which the C2H6 tends to be adsorbed on the interfacial Co sites and subsequently break the C-H bonds on the reactive lattice O of MnO2 layer. Findings from this study provide valuable insights for the rational design of efficient catalysts for alkane combustion.

Suggested Citation

  • Haiyan Wang & Shuang Wang & Shida Liu & Yiling Dai & Zhenghao Jia & Xuejing Li & Shuhe Liu & Feixiong Dang & Kevin J. Smith & Xiaowa Nie & Shuandi Hou & Xinwen Guo, 2024. "Redox-induced controllable engineering of MnO2-MnxCo3-xO4 interface to boost catalytic oxidation of ethane," Nature Communications, Nature, vol. 15(1), pages 1-15, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-48120-8
    DOI: 10.1038/s41467-024-48120-8
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    References listed on IDEAS

    as
    1. Franklin Feng Tao & Jun-jun Shan & Luan Nguyen & Ziyun Wang & Shiran Zhang & Li Zhang & Zili Wu & Weixin Huang & Shibi Zeng & P. Hu, 2015. "Understanding complete oxidation of methane on spinel oxides at a molecular level," Nature Communications, Nature, vol. 6(1), pages 1-10, November.
    2. 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.
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