PtCu/C and Pt(Cu)/C catalysts: Synthesis, characterization and catalytic activity towards ethanol electrooxidation

► PtCu/C and core-shell like Pt(Cu)/C catalysts were prepared. ► PtCu/C alloy catalysts have a Pt rich surface while core-shell like Pt(Cu)/C have a more Cu rich surface. ► PtCu/C alloy catalysts have greater activity towards ethanol oxidation than core-shell like Pt(Cu)/C catalysts.