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Mesoporous MnCeOx solid solutions for low temperature and selective oxidation of hydrocarbons

Author

Listed:
  • Pengfei Zhang

    (Oak Ridge National Laboratory)

  • Hanfeng Lu

    (Institute of Catalytic Reaction Engineering, College of Chemical Engineering, Zhejiang University of Technology)

  • Ying Zhou

    (Institute of Catalytic Reaction Engineering, College of Chemical Engineering, Zhejiang University of Technology)

  • Li Zhang

    (Oak Ridge National Laboratory)

  • Zili Wu

    (Oak Ridge National Laboratory)

  • Shize Yang

    (Oak Ridge National Laboratory)

  • Hongliang Shi

    (Oak Ridge National Laboratory)

  • Qiulian Zhu

    (Institute of Catalytic Reaction Engineering, College of Chemical Engineering, Zhejiang University of Technology)

  • Yinfei Chen

    (Institute of Catalytic Reaction Engineering, College of Chemical Engineering, Zhejiang University of Technology)

  • Sheng Dai

    (Oak Ridge National Laboratory
    University of Tennessee)

Abstract

The development of noble-metal-free heterogeneous catalysts that can realize the aerobic oxidation of C–H bonds at low temperature is a profound challenge in the catalysis community. Here we report the synthesis of a mesoporous Mn0.5Ce0.5Ox solid solution that is highly active for the selective oxidation of hydrocarbons under mild conditions (100–120 °C). Notably, the catalytic performance achieved in the oxidation of cyclohexane to cyclohexanone/cyclohexanol (100 °C, conversion: 17.7%) is superior to those by the state-of-art commercial catalysts (140–160 °C, conversion: 3-5%). The high activity can be attributed to the formation of a Mn0.5Ce0.5Ox solid solution with an ultrahigh manganese doping concentration in the CeO2 cubic fluorite lattice, leading to maximum active surface oxygens for the activation of C–H bonds and highly reducible Mn4+ ions for the rapid migration of oxygen vacancies from the bulk to the surface.

Suggested Citation

  • Pengfei Zhang & Hanfeng Lu & Ying Zhou & Li Zhang & Zili Wu & Shize Yang & Hongliang Shi & Qiulian Zhu & Yinfei Chen & Sheng Dai, 2015. "Mesoporous MnCeOx solid solutions for low temperature and selective oxidation of hydrocarbons," Nature Communications, Nature, vol. 6(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:6:y:2015:i:1:d:10.1038_ncomms9446
    DOI: 10.1038/ncomms9446
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    Cited by:

    1. Yu Liu & Xuchun Wang & Xiaodong Li & Zuyang Ye & Tsun-Kong Sham & Panpan Xu & Muhan Cao & Qiao Zhang & Yadong Yin & Jinxing Chen, 2024. "Universal and scalable synthesis of photochromic single-atom catalysts for plastic recycling," Nature Communications, Nature, vol. 15(1), pages 1-12, December.

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