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Surface-hydrogenated CrMnOx coupled with GaN nanowires for light-driven bioethanol dehydration to ethylene

Author

Listed:
  • Zhouzhou Wang

    (Shanghai Jiao Tong University
    Central China Normal University)

  • Haotian Ye

    (Peking University)

  • Yixin Li

    (Shanghai Jiao Tong University)

  • Bowen Sheng

    (Peking University)

  • Ping Wang

    (Peking University)

  • Pengfei Ou

    (National University of Singapore
    Northwestern University)

  • Xiao-Yan Li

    (Northwestern University)

  • Tianqi Yu

    (Shanghai Jiao Tong University)

  • Zijian Huang

    (Shanghai Jiao Tong University)

  • Jinglin Li

    (Shanghai Jiao Tong University)

  • Ying Yu

    (Central China Normal University)

  • Xinqiang Wang

    (Peking University
    Peking University
    Peking University)

  • Zhen Huang

    (Shanghai Jiao Tong University)

  • Baowen Zhou

    (Shanghai Jiao Tong University)

Abstract

Light-driven bioethanol dehydration offers attractive outlooks for the sustainable production of ethylene. Herein, a surface-hydrogenated CrMnOx is coupled with GaN nanowires (GaN@CMO-H) for light-driven ethanol dehydration to ethylene. Through combined experimental and computational investigations, a surface hydrogen-replenishment mechanism is proposed to disclose the ethanol dehydration pathway over GaN@CMO-H. Moreover, the surface-hydrogenated GaN@CMO-H can significantly lower the reaction energy barrier of the C2H5OH-to-C2H4 conversion by switching the rate-determining reaction step compared to both GaN and GaN@CMO. Consequently, the surface-hydrogenated GaN@CMO-H illustrates a considerable ethylene production activity of 1.78 mol·gcat−1·h−1 with a high turnover number of 94,769 mole ethylene per mole CrMnOx. This work illustrates a new route for sustainable ethylene production with the only use of bioethanol and sunlight beyond fossil fuels.

Suggested Citation

  • Zhouzhou Wang & Haotian Ye & Yixin Li & Bowen Sheng & Ping Wang & Pengfei Ou & Xiao-Yan Li & Tianqi Yu & Zijian Huang & Jinglin Li & Ying Yu & Xinqiang Wang & Zhen Huang & Baowen Zhou, 2025. "Surface-hydrogenated CrMnOx coupled with GaN nanowires for light-driven bioethanol dehydration to ethylene," Nature Communications, Nature, vol. 16(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-56277-z
    DOI: 10.1038/s41467-025-56277-z
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