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Synthesis of electrocatalysts by the Bönnemann method for the oxidation of methanol and the mixture H2/CO in a Proton Exchange Membrane Fuel Cell
- Source :
- Journal of the Brazilian Chemical Society, Vol 13, Iss 4, Pp 516-521 (2002)
- Publication Year :
- 2002
- Publisher :
- Sociedade Brasileira de Química, 2002.
-
Abstract
- 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.
- Subjects :
- electrocatalyst
fuel cell
methanol oxidation
reformate gas
Chemistry
QD1-999
Subjects
Details
- Language :
- English
- ISSN :
- 01035053
- Volume :
- 13
- Issue :
- 4
- Database :
- Directory of Open Access Journals
- Journal :
- Journal of the Brazilian Chemical Society
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.b58052e006c94b30aa07f54044cb8c41
- Document Type :
- article