Electrooxidation of methanol on Pt microparticles dispersed on SnO2 thin films

摘要: Abstract In this work, we have prepared electrodes through the electrodeposition of platinum micro particles on SnO 2 thin films in order to verify application system as a catalyst for electrooxidation methanol. The oxide were method polymeric precursor decomposition and calcinated at 550 °C. employed oxides proved be good matrix dispersion since they present high roughness. maximum current was attained content approximately 600 μg cm −2 . chronoamperometric results showed that values obtained methanol up 10 times higher than with platinized under same conditions. possible mechanisms lead enhancement discussed.