Abstract
AbstractMethanol oxidation on smooth Pt electrode modified with different coverage of Ru was studied using cyclic voltammetry and potential step combined with differential electrochemical mass spectroscopy. The current efficiency of formed CO2 was calculated from faraday current and ion current of m/z = 44. The results show that Ru modified Pt electrode with the coverage of ca. 0.3 has the highest catalytic activity for methanol electrooxidation, i.e. faraday current and the current efficiency of CO2 at the low potentials reach to the maximum. In addition, Ru loses its co‐catalytic properties at the high potentials.
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