Facile Synthesis of Nitrogen-Doped Graphene via Pyrolysis of Graphene Oxide and Urea, and its Electrocatalytic Activity toward the Oxygen-Reduction Reaction

Authors

  • Ziyin Lin,

    1. School of Materials Science and Engineering, Georgia Institube of Technology, 771 Ferst Drive, Atlanta, Georgia, 30332, USA
    Search for more papers by this author
  • Gordon Waller,

    1. School of Materials Science and Engineering, Georgia Institube of Technology, 771 Ferst Drive, Atlanta, Georgia, 30332, USA
    Search for more papers by this author
  • Yan Liu,

    1. School of Materials Science and Engineering, Georgia Institube of Technology, 771 Ferst Drive, Atlanta, Georgia, 30332, USA
    Search for more papers by this author
  • Meilin Liu,

    Corresponding author
    1. School of Materials Science and Engineering, Georgia Institube of Technology, 771 Ferst Drive, Atlanta, Georgia, 30332, USA
    • School of Materials Science and Engineering, Georgia Institube of Technology, 771 Ferst Drive, Atlanta, Georgia, 30332, USA.
    Search for more papers by this author
  • Ching-Ping Wong

    Corresponding author
    1. School of Materials Science and Engineering, Georgia Institube of Technology, 771 Ferst Drive, Atlanta, Georgia, 30332, USA
    2. Department of Electronic Engineering, The Chinese University of Hong Kong, Hong Kong
    • School of Materials Science and Engineering, Georgia Institube of Technology, 771 Ferst Drive, Atlanta, Georgia, 30332, USA.
    Search for more papers by this author

Abstract

original image

Nitrogen-doped graphene (NG) is a promising metal-free catalyst for the oxygen-reduction reaction (ORR). A facile and low-cost synthesis of NG via the pyrolysis of graphene oxide and urea is reported. The N content in NG can be up to 7.86%, with a high percentage of graphitic N (≈24%), which gives rise to an excellent catalytic activity toward the ORR.

Ancillary