Investigation of Pt nanoparticles with controlled size supported on carbon for dimethyl ether electrooxidation

► Pt/C catalysts with controlled Pt particle size were synthesized without surfactant. ► Ethylene glycol was employed as both solvent and reducing agent. ► Pt particle was regulated by changing the amount of added urea. ► Electrocatalysis of DME oxidation vs. Pt particle size exists a parabolic trend.