Electrocatalytic oxidation of methanol on Pt nanoparticles supported on porous poly(N-acetylaniline) nanofibrils

Abstract

A novel nanoporous poly(N-acetylaniline) (np-PAANI) film with a network structure modified with Pt nanoparticles (C/np-PAANI/Pt) was fabricated using chemical oxidation polymerization and a reduction method. The morphology and composition of the final products were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray diffraction (XRD). The electrocatalytic activity of C/np-PAANI/ Pt towards the oxidation of methanol was investigated using cyclic voltammetry and chronoamperometric methods in 0.5 mol· L-1 CH3OH+0.5 mol· L-1 H2SO4 mixture solution. Results indicated that C/np-PAANI/Pt catalysts exhibited improved electrocatalytic activity, anti-poisoning ability, and good stability towards methanol oxidation by comparison to C/PAANI/Pt or C/Pt. © Editorial office of Acta Physico-Chimica Sinica.