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

• Main Authors: Franco E. G., Oliveira Neto A., Linardi M., Aricó E.
• Format: Article
• Language: English
• Published: Sociedade Brasileira de Química 2002-01-01
• Series: Journal of the Brazilian Chemical Society
• Subjects: electrocatalyst; fuel cell; methanol oxidation; reformate gas
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532002000400017

The synthesis of ternary electrocatalysts Pt/Ru/Mo type were performed according to the Bönnemann 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.