Pt nanoparticles (PtNPs) well-dispersed on thiolated polyaniline (TPANI)-multiwalled carbon nanotubes (MWCNTs) were prepared for enhanced electrocatalytic oxidation of methanol in acidic media.
Size and oxidation state of Pt nanoparticles significantly influence the electrocatalytic performance of Pt–graphene nanocomposites for methanol oxidation and 2.2 nm Pt with variable oxidation states offers the best catalytic activity and durability.