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Selective photocatalytic conversion of methane into carbon monoxide over zinc-heteropolyacid-titania nanocomposites

Author

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  • Xiang Yu

    (Université Lille, CNRS, Centrale Lille, ENSCL, Université Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide)

  • Vincent Waele

    (Université Lille, CNRS, UMR 8516, LASIR, Laboratoire de Spectrochimie Infrarouge et Raman)

  • Axel Löfberg

    (Université Lille, CNRS, Centrale Lille, ENSCL, Université Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide)

  • Vitaly Ordomsky

    (Université Lille, CNRS, Centrale Lille, ENSCL, Université Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide
    Eco-Efficient Products and Processes Laboratory (E2P2L), UMI 3464, CNRS-Solvay)

  • Andrei Y. Khodakov

    (Université Lille, CNRS, Centrale Lille, ENSCL, Université Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide)

Abstract

Chemical utilization of vast fossil and renewable feedstocks of methane remains one of the most important challenges of modern chemistry. Herein, we report direct and selective methane photocatalytic oxidation at ambient conditions into carbon monoxide, which is an important chemical intermediate and a platform molecule. The composite catalysts on the basis of zinc, tungstophosphoric acid and titania exhibit exceptional performance in this reaction, high carbon monoxide selectivity and quantum efficiency of 7.1% at 362 nm. In-situ Fourier transform infrared and X-ray photoelectron spectroscopy suggest that the catalytic performance can be attributed to zinc species highly dispersed on tungstophosphoric acid /titania, which undergo reduction and oxidation cycles during the reaction according to the Mars–van Krevelen sequence. The reaction proceeds via intermediate formation of surface methyl carbonates.

Suggested Citation

  • Xiang Yu & Vincent Waele & Axel Löfberg & Vitaly Ordomsky & Andrei Y. Khodakov, 2019. "Selective photocatalytic conversion of methane into carbon monoxide over zinc-heteropolyacid-titania nanocomposites," Nature Communications, Nature, vol. 10(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-08525-2
    DOI: 10.1038/s41467-019-08525-2
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    Cited by:

    1. Yang, Le & Lin, Hongju & Fang, Zhihao & Yang, Yanhui & Liu, Xiaohao & Ouyang, Gangfeng, 2023. "Recent advances on methane partial oxidation toward oxygenates under mild conditions," Renewable and Sustainable Energy Reviews, Elsevier, vol. 184(C).
    2. Wenqing Zhang & Dawei Xi & Yihong Chen & Aobo Chen & Yawen Jiang & Hengjie Liu & Zeyu Zhou & Hui Zhang & Zhi Liu & Ran Long & Yujie Xiong, 2023. "Light-driven flow synthesis of acetic acid from methane with chemical looping," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    3. Wenqing Zhang & Cenfeng Fu & Jingxiang Low & Delong Duan & Jun Ma & Wenbin Jiang & Yihong Chen & Hengjie Liu & Zeming Qi & Ran Long & Yingfang Yao & Xiaobao Li & Hui Zhang & Zhi Liu & Jinlong Yang & Z, 2022. "High-performance photocatalytic nonoxidative conversion of methane to ethane and hydrogen by heteroatoms-engineered TiO2," Nature Communications, Nature, vol. 13(1), pages 1-9, December.

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