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-C₃N₄NS), and g-C₃N₄NS 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-C₃N₄owing to the hydrogen bond.