Electrostatic forces-controlled electric reductions of graphene oxide

A new electric method was introduced for reducing graphene oxide, GO. Experimentally, an electrostatic generator was employed to provide varied voltages together with the control of the electrostatic force, EF, in enhancement or reduction, respectively. Results showed that the Raman intensity ratio of D/G bands, I-D/I-G, for reduced GO, rGO, was increased with the voltage increase, especially under the EF-enhancement condition, and this condition formed rGO also showed flaky structure with the larger size as compared with the EF-reduction formed samples.