A Pt-Ru/Carbon Nanotubes Nanocomposite as a Direct Methanol Fuel Cell Anode Catalyst

摘要

It has been demonstrated that PtRu could be plated ontothe surface of carbon nanotubes by electroless plating. The resultingrnelectrcatalysts were characterized by transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) andrncyclic voltammetry. XPS analysis revealed that the catalysts contained mostly Pt(0) and Ru(0), with a little of Pt(II), Pt(IV)rnand Ru(IV). The PtRu/CNTs catalysts had high electrocatalytic activities for methanol oxidation over that of the PtRu/VulcanrnXC72 electrocatalyst. Test runs on a single stack polymer electrolyte membrane fuel cell showed that this electrocatalyst isrnvery promising for fuel cell applications.