%0 Journal Article
%T 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
%A Franco
%A E. G.
%A Oliveira Neto
%A A.
%A Linardi
%A M.
%A Aric¨®
%A E.
%J Journal of the Brazilian Chemical Society
%D 2002
%I Sociedade Brasileira de Qu¨ªmica, SBQ
%R 10.1590/S0103-50532002000400017
%X 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.
%K electrocatalyst
%K fuel cell
%K methanol oxidation
%K reformate gas.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0103-50532002000400017&lng=en&nrm=iso&tlng=en