▎ 摘　　要

PdCu alloy nanoparticles (with sizes of ca. 4.5 nm) have been synthesized by a one-step electrochemical process on composite films constructed from functionalized graphene (GN) and H3PMo12O40 (PMo12) by LBL assembly. The as-prepared hybrid displays enhanced eletrocatalytic activity and extended durability towards formic acid oxidation in an acid media.