Non-Enzymatic Amperometric Detection of H2O2 on One- Step Electrochemical Fabricated Cu2O/Electrochemically Reduced Graphene Oxide Nanocomposite

摘要

In this study, we present a new approach to electrochemical growth of Cu2O/electrochemically reduced graphene oxide (Cu2O/ERGO) nanostructures that are based on simultaneous co-reduction of both copper ions and graphene oxide from an aqueous suspension on gold electrode. The X-ray diffraction (XRD) spectra of as-prepared Cu2O/ERGO electrode showed that Cu2O and graphene structures in composite nanostruc- tures. The SEM image exhibited that combining the crumpled ERGO and nanocubes shapes of Cu2O in nanocomposite stucture. The Cu2O/ERGO nanocomposite electrode exhibits good electrocatalytic activity toward detection of non-enzy- matic H2O2, compared to bare Au and Au/Cu2O electrodes, in terms of low working potential and high current density.