Fine-tuning the functionality of reduced graphene oxide via bipolar electrochemistry in freestanding 2D reaction layers

Graphene has unique characteristics that are appealing for energy-related applications such as ultra-lightweight and high surface-area/electrical-conductivity. However, generating functional graphene sheets is still a very challenging task. Here, novel approach based on an original bipolar electrochemistry set-up, using quasi-2D reaction layer, suggested, which allows precise control of dispersibility conductivity sheets. In this system, freestanding 2D layer aqueous solution, containing oxide (GO) sheets, placed between two platinum feeder electrodes, used to apply electric field. As result, the GO experience sufficiently polarization cause their transformation into reduced (rGO). The degree reduction can be readily controlled by field strength exposure time, resulting in wide range rGO with different conductivity/dispersibility features. partially (prGO) engineered prepare composites redox-polymer organic battery applications. Additionally, at higher potentials, Pt nanoparticles released from electrodes attached were catalyzing hydrogen evolution performance comparable bulk Pt.