Performance of PtPd Electrocatalysts in Direct Methanol Fuel Cell
PtPd nanoparticles on carbon black were prepared to investigate the role of Pd in the anode and cathode of a direct methanol fuel cell (DMFC). The PtPd catalysts in the anode showed a significantly lower performance than the PtRu catalyst. However, the cell performances of these catalysts in the cathode were comparable to that of the Pt catalyst. From cyclic voltammetry, it was observed that the Pd with the Pt catalyst lowered the peak potential and increased the coulombic charge for oxide reduction on the surface of the catalyst. Also, the Pd catalyst without Pt showed relatively high activity for oxygen reduction reaction.
Keywords: DMFC; METHANOL OXIDATION; OXYGEN REDUCTION; PTPD NANOPARTICLE
Document Type: Research Article
Publication date: 01 May 2010
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