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Non-catalytic hydrogenation of VO2 in acid solution

Author

Listed:
  • Yuliang Chen

    (University of Science and Technology of China)

  • Zhaowu Wang

    (University of Science and Technology of China
    Henan University of Science and Technology, Henan Key Laboratory of Photoelectric Energy Storage Materials and Applications)

  • Shi Chen

    (University of Science and Technology of China)

  • Hui Ren

    (University of Science and Technology of China)

  • Liangxin Wang

    (University of Science and Technology of China)

  • Guobin Zhang

    (University of Science and Technology of China)

  • Yalin Lu

    (University of Science and Technology of China)

  • Jun Jiang

    (University of Science and Technology of China)

  • Chongwen Zou

    (University of Science and Technology of China)

  • Yi Luo

    (University of Science and Technology of China)

Abstract

Hydrogenation is an effective way to tune the property of metal oxides. It can conventionally be performed by doping hydrogen into solid materials with noble-metal catalysis, high-temperature/pressure annealing treatment, or high-energy proton implantation in vacuum condition. Acid solution naturally provides a rich proton source, but it should cause corrosion rather than hydrogenation to metal oxides. Here we report a facile approach to hydrogenate monoclinic vanadium dioxide (VO2) in acid solution at ambient condition by placing a small piece of low workfunction metal (Al, Cu, Ag, Zn, or Fe) on VO2 surface. It is found that the attachment of a tiny metal particle (~1.0 mm) can lead to the complete hydrogenation of an entire wafer-size VO2 (>2 inch). Moreover, with the right choice of the metal a two-step insulator–metal–insulator phase modulation can even be achieved. An electron–proton co-doping mechanism has been proposed and verified by the first-principles calculations.

Suggested Citation

  • Yuliang Chen & Zhaowu Wang & Shi Chen & Hui Ren & Liangxin Wang & Guobin Zhang & Yalin Lu & Jun Jiang & Chongwen Zou & Yi Luo, 2018. "Non-catalytic hydrogenation of VO2 in acid solution," Nature Communications, Nature, vol. 9(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-03292-y
    DOI: 10.1038/s41467-018-03292-y
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    Cited by:

    1. JunHwa Kwon & Soonsung So & Ki-Yeop Cho & Seungmin Lee & Kiyeon Sim & Subin Kim & Seunghyun Jo & Byeol Kang & Youn-Ki Lee & Hee-Young Park & Jung Tae Lee & Joo-Hyoung Lee & KwangSup Eom & Thomas F. Fu, 2024. "Galvanic hydrogenation reaction in metal oxide," Nature Communications, Nature, vol. 15(1), pages 1-8, December.

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