Direct electrochemistry of Eugenol at a glassy carbon electrode modified with electrochemically reduced graphene oxide

Abstract

An electrochemically reduced graphene oxide modified glassy carbon electrode (ERGO/GCE) was synthetized by direct electrochemical reduction of graphite oxide on a glassy carbon electrode (GCE). The prepared ERGO/GCE shows higher sensitivity to eugenol than the bare GCE due to the large surface area and excellent conductivity, indicating that a direct electrochemical behaviour can be significantly enhanced through electrochemically reduced graphene oxide (ERGO) surface modification. The ERGO/GCE displays a fast response time of less than 5 s and has a detection limit of 5×10 -7 M, covering a linear range from 5×10 -6 M to 1×10 -4 M. As a result, ERGO nanomaterials have potential applications in sensitive eugenol sensors.