Phosphate-decorated Pt Nanoparticles as Methanol-tolerant Oxygen Reduction Electrocatalyst for Direct Methanol Fuel Cells

In a direct methanol fuel cell system (DMFC), one of the drawbacks is crossover. Methanol from anode passes through membrane and enters cathode, causing mixed potential in cell. Only Pt-based catalysts are capable operating as cathode for oxygen reduction reaction (ORR) harsh acidic condition DMFC. However, it causes due to high activity toward oxidation Pt. To overcome this situation, developing catalyst that has tolerance significant, by controlling reactant adsorption or kinetics. Pt/C decorated with phosphate ion was prepared modified polyol method Phosphate ions, bonded carbon Pt/C, surround free Pt surface block only on Pt, not oxygen. It leads suppression an atmosphere, resulting DMFC performance compared pristine Pt/C.