Gold Particle Dispersed Hollow Spherical Polyaniline Nanocapsules as Electrochemical Catalysts for Direct Methanol Fuel Cells

摘要

Hollow spherical PANI nanocapsules (HSPNs) were prepared via γ-irradiation and were subsequently loaded with gold (Au) nanoparticles to obtain an HSPN/Au catalyst. The morphology of the HSPN/Au catalyst was examined via field emission scanning electron microscopy while the electronic property was investigated via ultraviolet-visible spectroscopy. The electroactivity of the HSPN/Au catalyst modified electrode towards the oxidation of methanol was evaluated to ascertain the utility of the catalyst in direct methanol fuel cell application.