• myGriffith
    • Staff portal
    • Contact Us⌄
      • Future student enquiries 1800 677 728
      • Current student enquiries 1800 154 055
      • International enquiries +61 7 3735 6425
      • General enquiries 07 3735 7111
      • Online enquiries
      • Staff phonebook
    View Item 
    •   Home
    • Griffith Research Online
    • Journal articles
    • View Item
    • Home
    • Griffith Research Online
    • Journal articles
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

  • All of Griffith Research Online
    • Communities & Collections
    • Authors
    • By Issue Date
    • Titles
  • This Collection
    • Authors
    • By Issue Date
    • Titles
  • Statistics

  • Most Popular Items
  • Statistics by Country
  • Most Popular Authors
  • Support

  • Contact us
  • FAQs
  • Admin login

  • Login
  • Ambient Electrochemical Nitrogen Fixation over a Bifunctional Mo–(O–C2)4 Site Catalyst

    Author(s)
    Zhang, S
    Shi, T
    Li, K
    Sun, Q
    Lin, Y
    Zheng, LR
    Wang, G
    Zhang, Y
    Yin, H
    Zhang, H
    Griffith University Author(s)
    Yin, Huajie
    Year published
    2021
    Metadata
    Show full item record
    Abstract
    The electrochemical synthesis of NH3 and NO3- by the N2 reduction reaction (NRR) and the N2 oxidation reaction (NOR) under ambient conditions utilizing H2O as the hydrogen and oxygen source has aroused great attention. Here, we report the fabrication of oxygen-coordinated molybdenum (Mo) single atoms anchored on carbon (Mo-O-C) using bacterial cellulose (BC) as the impregnation regulator and carbon source. As a result, the as-synthesized Mo-O-C as an electrocatalyst exhibits superior bifunctional NRR and NOR activities with high stability. A superb NH3 yield rate of 248.6 ± 12.9 μg h-1 mgcat.-1 and a faradaic efficiency (FE) ...
    View more >
    The electrochemical synthesis of NH3 and NO3- by the N2 reduction reaction (NRR) and the N2 oxidation reaction (NOR) under ambient conditions utilizing H2O as the hydrogen and oxygen source has aroused great attention. Here, we report the fabrication of oxygen-coordinated molybdenum (Mo) single atoms anchored on carbon (Mo-O-C) using bacterial cellulose (BC) as the impregnation regulator and carbon source. As a result, the as-synthesized Mo-O-C as an electrocatalyst exhibits superior bifunctional NRR and NOR activities with high stability. A superb NH3 yield rate of 248.6 ± 12.9 μg h-1 mgcat.-1 and a faradaic efficiency (FE) of 43.8 ± 2.3% can be obtained at -0.20 V (vs RHE) by the Mo-O-C-catalyzed NRR, and Mo-O-C can also afford a NO3- yield rate of 217.1 ± 13.5 μg h-1 mgcat.-1 with a FE of 7.8 ± 0.5% at 2.35 V (vs RHE) for the NOR. The synchrotron-based X-ray absorption spectra and theoretical calculation results unveil that the O-coordinated molybdenum configuration of Mo-(O-C2)4 anchored on carbon is the most stable single-atom structure as the catalytic active sites for N2 adsorption, activation, and bifunctional hydrogenation/oxidation reactions.
    View less >
    Journal Title
    Journal of Physical Chemistry C
    Volume
    126
    Issue
    2
    DOI
    https://doi.org/10.1021/acs.jpcc.1c10039
    Subject
    Catalysis and mechanisms of reactions
    Physical chemistry
    Publication URI
    http://hdl.handle.net/10072/412242
    Collection
    • Journal articles

    Footer

    Disclaimer

    • Privacy policy
    • Copyright matters
    • CRICOS Provider - 00233E
    • TEQSA: PRV12076

    Tagline

    • Gold Coast
    • Logan
    • Brisbane - Queensland, Australia
    First Peoples of Australia
    • Aboriginal
    • Torres Strait Islander