Anodic oxidation of hydrazine and its derivatives

摘要: Summary The anodic oxidation of hydrazine on gold electrodes has been studied in acid solutions (0.5–2 N H 2 SO 4 ). electrode pretreatment consisted electropolishing, followed by a sequence potentials (0.90V,−0.20V) before each measurement. Tafel slope was determined four independent techniques (shift the peak potential with sweep rate linear sweep, foot current/potential curve same measurement, galvanostatic and steady state potentiostatic) all which gave values range 90–100 mV. reaction order pH effects were 0.3 0.8, respectively. mechanism proposed involves fast equilibrium first discharge step an adsorbed 3 radical is formed. Desorption this formation solution believed to be determining. surface coverage radicals intermediate Frumkin type adsorption isotherm applicable, correction for energy displacement water molecules from surface, according theory Bockris et al. electrosorption neutral organic species.