High-yield production of high-quality graphene by novel electrochemical exfoliation at air-electrolyte interface

Abstract An end-face electrochemical exfoliation (EFEE) strategy for scalable graphene preparation is established, which has the confined area and thus guarantees uniform current density at the air-electrolyte interface, different from the traditional electrode set-up. The production of graphene is presented that has excellent yield (∼100%) and outstanding conductivity (3.8 × 104 S m−1 with a graphene loading of 0.7 mg cm−2). The exfoliation mechanism is also discussed.