▎ 摘　　要

Graphene/V2O5/MoO3 (GVM) films were fabricated by the sol-gel method. The structure, electrochemical and electrochromic properties were investigated by means of X-ray diffraction (XRD), X-ray photoemission spectroscopy (XPS), cyclic voltammetry, chronoamperometry and UV-Visible spectrophotometer. The optical modulatory range of the GVM film was enlarged to 25.35%, which is 1.38 times larger than that of V2O5 (V) films. The cyclic stability is improved significantly and the films perform well in the response rate. The bleaching time is 1.25 seconds, and the coloration time is 1.40 seconds. These results demonstrate that the GVM films are excellent candidates for the fast switching electrochromic materials. (C) 2016 The Electrochemical Society. All rights reserved.