PtRu catalysts were prepared by electrochemical deposition on C-Nafion supports sprayed on stainless steel current collectors. The effect of the electrochemically accessible surface area of the C-Nafion supports, of the Pt to C and Pt to Nafion mass ratio and of the electrodeposition conditions on catalytic activity of the PtRu/C-Nafion catalysts for methanol oxidation in direct methanol fuel cells (DMFC) was investigated. Our results demonstrate that optimized PtRu/C-Nafion catalysts display catalytic activity significantly higher than that of a commercial system tested in the same conditions.
Increased performance of electrodeposited PtRu/C-Nafion catalysts for DMFC / MISSIROLI A.; SOAVI F.; MASTRAGOSTINO M.. - In: ELECTROCHEMICAL AND SOLID-STATE LETTERS. - ISSN 1099-0062. - STAMPA. - 8 (2):(2005), pp. A110-A114. [10.1149/1.1847686]
Increased performance of electrodeposited PtRu/C-Nafion catalysts for DMFC
SOAVI, FRANCESCA;MASTRAGOSTINO, MARINA
2005
Abstract
PtRu catalysts were prepared by electrochemical deposition on C-Nafion supports sprayed on stainless steel current collectors. The effect of the electrochemically accessible surface area of the C-Nafion supports, of the Pt to C and Pt to Nafion mass ratio and of the electrodeposition conditions on catalytic activity of the PtRu/C-Nafion catalysts for methanol oxidation in direct methanol fuel cells (DMFC) was investigated. Our results demonstrate that optimized PtRu/C-Nafion catalysts display catalytic activity significantly higher than that of a commercial system tested in the same conditions.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.