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  • Electrocatalytic oxidation of methane to ethanol via NiO/Ni interface

    Author(s)
    Song, Y
    Zhao, Y
    Nan, G
    Chen, W
    Guo, Z
    Li, S
    Tang, Z
    Wei, W
    Sun, Y
    Griffith University Author(s)
    Tang, Zhiyong
    Year published
    2020
    Metadata
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    Abstract
    Electrocatalytic conversion of methane (CH4) to valuable chemicals under mild conditions is an attractive approach that combines the direct utilization of natural gas as a hydrocarbon feedstock and the chemical storage of renewable electricity. However, it remains a great challenge due to the intrinsic chemical inertness of CH4. Here we report that a NiO/Ni interface constructed by calcination can act as the active site for the electrooxidation of CH4 to alcohols especially ethanol. With the optimized NiO/Ni interface catalyst, an 89 % Faradaic efficiency (FE) for ethanol production with a yield of 25 μmol∙gNiO−1∙h−1 at 1.40 ...
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    Electrocatalytic conversion of methane (CH4) to valuable chemicals under mild conditions is an attractive approach that combines the direct utilization of natural gas as a hydrocarbon feedstock and the chemical storage of renewable electricity. However, it remains a great challenge due to the intrinsic chemical inertness of CH4. Here we report that a NiO/Ni interface constructed by calcination can act as the active site for the electrooxidation of CH4 to alcohols especially ethanol. With the optimized NiO/Ni interface catalyst, an 89 % Faradaic efficiency (FE) for ethanol production with a yield of 25 μmol∙gNiO−1∙h−1 at 1.40 V versus reversible hydrogen electrode (RHE) was achieved. Experiments and density functional theory (DFT) calculations demonstrated that the NiO/Ni interface enables efficient C–H activation and C–C coupling, leading to the highly selective formation of ethanol from CH4 electrooxidation.
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    Journal Title
    Applied Catalysis B: Environmental
    Volume
    270
    DOI
    https://doi.org/10.1016/j.apcatb.2020.118888
    Subject
    Physical chemistry
    Chemical engineering
    Environmental engineering
    Publication URI
    http://hdl.handle.net/10072/397470
    Collection
    • Journal articles

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