Methanol Electrooxidation on Pt-Ru Catalysts Dispersed in Conducting Polyaniline Films
Methanol electrooxidation was investigated on tailored Pt-Ru-polyaniline catalysts prepared applying dynamic potential routines. The electrodes characterized by SEM, EDX and TEM present a uniform distribution of metal particles about 100 nm in size, composed of Ru and Pt on the fibrous polymer matrix. The effect of concentration in the range 0.05-1 M and temperature in the range 20 to 60 ºC on the methanol electrooxidation rate was determined. The apparent activation energy depends on the catalyst Ru content.
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| Main Authors: | , , |
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| Format: | Digital revista |
| Language: | English |
| Published: |
Sociedade Portuguesa de Electroquímica
2004
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| Online Access: | http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042004000400005 |
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