Nanocomposites of Graphene with Ferrocene or Hemin: Preparation and Application in Electrochemical Sensing

Abstract EN

Graphene has sparked tremendous interests across many fields such as biosensors, electrochemical energy storage, and electronics due to its extraordinary physicochemical and structural properties.

The redox mediator-functionalized graphene composites may obtain highly electroactive materials with better conductivity, dispersion, and compatibility.

Ferrocene and hemin, two iron-organic complexes, are the well-known mediators in view of their various properties, including reversibility, regeneration at low potential, and generation of stable redox states.

Recently, it has been demonstrated that the use of ferrocene or hemin coupled with graphene can further improve the electrochemical performances of the developed sensors.

In this contribution, we, for the first time, reviewed the preparation and applications of ferrocene/graphene and hemin/graphene nanocomposites in electrochemical sensing.