Graphene oxide films as separators of polyaniline-based supercapacitors

A film of deeply oxidized graphene oxide is used for the first time as a separator of a supercapacitor. The supercapacitor fabricated possesses a layer PANi/GO/PANi structure, where PANi is polyaniline and GO is graphene oxide. The capacity of this supercapacitor is about 150 F per gram of the total weight of the electrode, separator, and electrolyte (1 M H sub(2)SO sub(4)). Our data do provide evidence that the GO film has a proton type conductivity after being permeated with a solution of sulfuric acid.