Voltammetric curves of p-nitrophenol in aqueous-methanol medium for acidic, basic and neutral ranges using B.R. Buffer for various concentrations (0.05mM, 0.1mM, 0.15mM, 0.2mM) and scan rates were obtained. The prominent two reduction peaks corresponding to 4e− change of p-nitro phenol was characterized at 0.1mM concentration in basic medium at scan rate 90mV/sec. The reversibility of the reaction was also studied by the Cyclic Voltammetry.
Constant current electrolysis of 0.02mM p-nitrophenol in basic medium gives p-Hydroxy phenyl hydroxyl amine(p-HPHA) at stainless steel (type 316) cathode and counter electrode of same size and material at constant current 2 Ampere respectively, as a major product which were confirmed by spectral and chemical analysis.
Electrochemical reduction, p-nitrophenol, Cyclic voltammetry, constant current electrolysis, SS cathode
