Preparation of reduced graphite oxide with high volumetric capacitance in supercapacitors.

High density reduced graphite oxide was prepared via a novel precipitation-assisted method, and the micropore area was found to be above 70% of the total surface area for the as-prepared sample. Electrochemical experiments showed that the as-prepared samples exhibited high volumetric capacitance and excellent cycling stability as an electrode material in supercapacitors.