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Ni-Ce-OMS-2 material: preparation and preliminary catalytic-study on removing ethanol in the gas phase

  • Authors (legacy)
    Corresponding: Tuyet-Mai Tran-Thuy
    Co-authors: Gia-Han Nguyen, Quoc-Long Dang-Hung, Trong-Phu Tran, Dung V. Nguyen, Long Q. Nguyen and Tuyet-Mai Tran-Thuy
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  • gnest_04949_published.pdf
  • Paper ID
    gnest_04949
  • Paper status
    Published
  • Date paper submitted
  • Date paper accepted
  • Date paper online
DOI
https://doi.org/10.30955/gnj.004949
Graphical abstract
Abstract

Cryptomelane type manganese oxide K-OMS-2 and Ni-Ce-OMS-2 co-doping materials were synthesized by one-step preparation with refluxing system. The crystalline structure, and morphology were characterized by X-ray diffraction analysis and SEM images. Ni (II) and Ce (III) were incorporated into cryptomelane, substituted for Mn (III) and Mn (IV) resulting an increase of Mn-average-oxidation-state from 3.6 to 3.8 for un-doped and co-doped samples, respectively. With different amount of precursor-cerium concentration, NiCe1.0 improved the ethanol conversion by a factor of 8 compared to unmodified K-OMS-2. Additionally, NiCe1.0 showed a significant increase of ethanol conversion with reaction temperature. Over above 90% of ethanol was total oxidized at 150 C suggesting a potential Ni-Ce-OMS-2 catalyst for removing volatile organic compounds at low temperature.

Keywords
Ni-Ce-OMS-2 Ni-Ce-cryptomelane removing ethanol vapor manganese AOS deep oxidation of ethanol
Cite this article
TuyetMai, T. et al. (2023) “Ni-Ce-OMS-2 material: preparation and preliminary catalytic-study on removing ethanol in the gas phase”, Global NEST Journal, 25(6). Available at: https://doi.org/10.30955/gnj.004949.
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  • gnest_04949_published.pdf