Radiolytic synthesis of gold based bimetallic nanoparticles for use in fuel cell catalysts

Nanobimetallic particles consisting of Au–Fe and Au–Pt have been synthesized by the radiolytic method The nanometallic dispersions are characterized by the electron microscopy techniques (TEM, HRTEM, and EDX), UV vis spectroscopy, X-ray Photoelectron Spectroscopy (XPS) and X-ray diffraction (XRD). The stabilized nanoparticles demonstrate electro-catalytic activity towards CO and methanol oxidation, oxygen and proton reduction. The same catalyst material is useful in constructing both anodes and cathodes,and demonstrates bifunctional activity.

Keywords:

Bimetallic nanoparticles , Gold , Platinum , Iron , Electro-catalysis