Electrochemical reaction of graphene oxide at Au electrode surface monitored by surface enhanced infrared absorption spectroscopy

Abstract

Adsorption and electrochemical reaction of graphen oxide (GO) at an Au surface was studied by surface enhanced infrared absorption spectroscopy (SEIRAS). GO film on the Au electrode is formed within 1 min. in 0.4 mg ml-1 of GO aqueous dispersion solution. Also, it was shown that, by applying -1.0 V vs Ag/AgCl, the epoxy group of GO was reduced in 0.4 mg ml-1 of GO and 0.1 M NaClO4 solution, and the reaction was irreversible within the potential region under the experimental conditions studied here.