Facile in-situ reduction method for preparation of GO-Pd catalysts

Abstract

In recent years, many researchers have developed techniques for the production of new nanostructured materials. The present work focused on the development of an environmentally friendly synthesis route with excellent catalytic properties that is; an alternative to the synthesis of nanoparticles supported on graphene oxide (GO), and it provides significant reduction in secondary waste. This method was designed for in situ reduction of highly dispersed Pd nanoparticles on the surface of GO for use in catalytic applications. X-ray diffraction measurements determined that the method yielded Pd mainly in the metallic state. Electrochemical characterization by cyclic voltammetry measurements showed that the increased crystallinity of Pd improved the exposure of the active electrochemical sites that carry out the oxygen reduction reaction (ORR). These results allow the design and control of the in-situ growth of nanostructured materials.