• 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
  • Coupling of iron phthalocyanine at carbon defect site via π-π stacking for enhanced oxygen reduction reaction

    Author(s)
    Yu, X
    Lai, S
    Xin, S
    Chen, S
    Zhang, X
    She, X
    Zhan, T
    Zhao, X
    Yang, D
    Griffith University Author(s)
    Yang, Dongjiang
    Year published
    2021
    Metadata
    Show full item record
    Abstract
    The intrinsic activity of transition metal catalytic centers for oxygen reduction reaction (ORR) depends heavily on its electronic structure, which with an electron-rich environment will boost the ORR performance. In this work, we firstly revealed the defective graphene (DG) substrate with 585 defects could efficiently mediate charge redistribution of the attached exfoliated monolayer Iron Phthalocyanine (FePc) by using density functional theory (DFT) calculation. The electrons transfer to FePc from 585 defects forms an electron-rich region on Fe atom, and high-density electrons further raise the d-band center of Fe atom. ...
    View more >
    The intrinsic activity of transition metal catalytic centers for oxygen reduction reaction (ORR) depends heavily on its electronic structure, which with an electron-rich environment will boost the ORR performance. In this work, we firstly revealed the defective graphene (DG) substrate with 585 defects could efficiently mediate charge redistribution of the attached exfoliated monolayer Iron Phthalocyanine (FePc) by using density functional theory (DFT) calculation. The electrons transfer to FePc from 585 defects forms an electron-rich region on Fe atom, and high-density electrons further raise the d-band center of Fe atom. Apparently, this adjustment of electronic structure for Fe atoms is beneficial to the adsorption and reaction of O2 molecules, inducing more positive initial potential and larger current density for ORR. Based on this finding, DG obtained by the heat treatment was prepared to couple exfoliated monolayer FePc through stable π-π stacking. As expected, FePc/DG hybrid exhibits outstanding electrocatalytic ORR performance with a positive initial potential (0.98 V vs. RHE) and a high current density (5.45 mA·cm−2) in 0.1 M KOH electrolytes. In addition, the FePc/DG hybrid was utilized to assemble a zinc-air battery device, which reveals the power density of 190 mW·cm−2.
    View less >
    Journal Title
    Applied Catalysis B: Environmental
    Volume
    280
    DOI
    https://doi.org/10.1016/j.apcatb.2020.119437
    Subject
    Physical Chemistry (incl. Structural)
    Chemical Engineering
    Environmental Engineering
    Publication URI
    http://hdl.handle.net/10072/401850
    Collection
    • Journal articles

    Footer

    Disclaimer

    • Privacy policy
    • Copyright matters
    • CRICOS Provider - 00233E

    Tagline

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