Facile Fabrication of Pt/g-C3N4/KB Catalyst for Methanol Oxidation

Pt/g-C3N4/KB was prepared by a facile method, Pt nanoparticles were prepared through solution plasma process, g-C3N4 was exfoliated by thermal oxidation to obtain g-C3N4 nanosheets (g-C3N4 NS), and g-C3N4 NS was treated further by hydrothermal method. The obtained Pt/g-C3N4/KB was characterized by X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. The activity of samples for methanol electrocatalytic oxidation reaction was evaluated by cyclic voltammetry, respectively. The Pt/g-C3N4/KB exhibits much better activity than that of Pt/KB. The improvement may be attributed the excellent chemical stability of g-C3N4, high activity of Pt atoms owing to the N element of g-C3N4, and methanol molecule may be adsorbed to g-C3N4 owing to the hydrogen bond.