A systematic study of the electrooxidation mechanism of hydrazine on Pt electrodes in 0.5 M H2SO4 solutions has been made. The experimental rate equation found is magnified image This can be theoretically explained by a five step mechanism. The log I vs. log Chyd linear plot that results in the determination of the reaction order respect to hydrazine concentration can be used as a working curve for quantitative analytical determination of hydrazine concentrations. A mechanistic explanation has been found for the unusual dependence of the Tafel slope with the pH value.
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García et al. (1996) studied this question.
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