In Situ Study on the Redox of p-methylaminophenol on Platinum Electrode with Infrared Spectroelectrochemistry

The electrochemical redox reaction of p-methylaminophenol on platinum electrode in 0.2 mol/L KCl solution was investigated by cyclic voltammetry and in situ reflection absorption Fourier transform infrared spectroscopy (FTIRS). The results show that two electrons and protons were transferred during the redox process of p-methylaminophenol. The electrochemical oxidation of p-methylaminophenol yields p-N-methylobenzoquinoeimin intermediate at first. And then the p-N-methylobenzoquinoeimin further undergoes irreversible hydrolysis to yield p-benzoquinone and methylamine.