Study of Pt catalyst on graphene and its application to fuel cell

The results show that the electrode catalyst Pt particles have a smaller size and a better distribution on the surface of graphene under the following reducing condition: two-step reduction, reaction time of 12 h, reaction temperature of 150 °C and the 1 g/L of H2PtCl6. These PtNPs/GN composites exhibit superior electrochemically active surface area and high poison tolerance toward methanol oxidation compared to Vulcan XC-72-Pt with the same Pt content. This revealed that the PtNPs/GN can be used as promising electrocatalyst support for direct methanol fuel cells.