Synthesis of electrocatalysts by the B？nnemann method for the oxidation of methanol and the mixture H2/CO in a Proton Exchange Membrane Fuel Cell

the synthesis of ternary electrocatalysts pt/ru/mo type were performed according to the b？nnemann method and characterized by the following techniques: energy dispersive analysis (edx), x-rays diffraction (xrd), cyclic voltammetry (cv) and polarization curves (e vs. i) for the oxidation of h2, h2/co and methanol in a proton exchange membrane fuel cell (pemfc). catalysts structure consists of highly dispersed nanocrystals in carbon support, with an average particle size of 2 nm. the results of cyclic voltammetry suggest an enhancement of the catalyst electroactivity with the addition of cocatalysts. polarization curves indicate that pt/ru/mo systems could be employed as electrode material for pem fuel cell for technological application.