Abstract
The electrooxidation of methanol on ruthenium oxide layer supported by basal plane graphite (BPG) in acid media was investigated by cyclic voltammetry and X-ray photoelectron spectroscopy. A simple electrodeposition method of ruthenium oxide layer on BPG electrode was established in this study. Ruthenium oxide layer, which was prepared by a simple electrodeposition method in acidic ruthenium chloride solution, stable in the potential range between −0.3 and 0.9 V vs. saturated calomel electrode (SCE) but stripped at high potential range between 1.0 and 1.7 V . According to XPS analysis, the layer presented more than two different peaks, which showed the oxidation states of ruthenium between Ru (2+) and Ru (4+). A peak current of 260 μA at 1.0 V was observed for the electrooxidation of methanol on ruthenium oxide layer.
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