▎ 摘　　要

Effective and low-price electrocatalyst synthesis is a critical issue for direct methanol fuel cells. To remedy this, it is necessary to investigate materials that can act synergistically with Pt. In this study, indium-tin oxide (ITO) was modified by decorating it with N-rGO and ZnO@NrGO, followed by potentiodynamic deposition of Pt. PtZnO@N-rGO-ITO has a high mass activity of 1650 mA mg-1 towards electro-oxidation of 0.5 M methanol (MeOH) in an acidic medium. This value is 1.5, 6.06, and 3.74 times higher than that of other catalysts such as Pt-N-rGO-ITO, Pt-ITO, and Pt/C, respectively. In addition, among the prepared electrodes, the highest value of If/ Ib (1.692) belongs to the Pt-ZnO@N-rGO-ITO electrode which has a strong anti-poisoning property. This superior performance of Pt-ZnO@N-rGO-ITO is attributed to the synergistic effect of Pt and ZnO. Moreover, the Pt-ITO, PtNrGO-ITO, and Pt-ZnO@N-rGO-ITO electrodes were characterized by Scanning Electron Microscopy (SEM), High-resolution Transmission Electron Microscopy (HRTEM), Energy Dispersive X-ray Spectroscopy (EDX), mapping, and X-ray Powder Diffraction (XRD), X-ray Photoelectron Spectroscopy (XPS) and Raman Spectroscopy.