▎ 摘　　要

Noble metal/semiconductor-based electrocatalysts have been proverbially used as the anode material in direct methanol fuel cells (DMFCs) recently. Combined with the advantage of the properties of noble metals and semiconductors, photo-assisted electrocatalytic methanol oxidation is a valid route to increase the catalytic activity of catalysts in DMFCs. Herein, a 2D composite of bismuth tungstate/reduced graphene oxide (Bi2WO6/RGO) with excellent optical, electrical, and thermal stability is used as the support for the decoration of platinum nanoparticles (Pt NPs) to synthesize a new electrocatalyst of Pt-Bi2WO6/RGO. Under ambient conditions, the methanol oxidation reaction (MOR) activity of the Pt-Bi2WO6/RGO electrocatalyst increases relative to the Pt/Bi(2)WO(6)electrode. Note that, under visible light irradiation, it deals with big enhancement of methanol oxidation activity on Pt-Bi2WO6/RGO electrode, highlighting the effect of RGO used as Bi(2)WO(6)cocatalysis for the MOR activity under illumination. Meanwhile, the corresponding reaction mechanisms with/without visible light are presented, and the roles of Pt-Bi2WO6/RGO for photo-assisted electrochemical reactions are proposed.