Electrophoretic nanotechnology of graphene–carbon nanotube and graphene–polypyrrole nanofiber composites for electrochemical supercapacitors.

Highlights: [•] Safranin was used as a dispersant for electrophoretic deposition of materials. [•] Carbon nanotubes, graphene and polypyrrole nanofibers were deposited cathodically. [•] Graphene–carbon nanotubes and graphene polypyrrole nanofiber composites were obtained. [•] Composite films were studied for electrodes of electrochemical supercapacitors. [•] The composite electrodes showed high capacitance and low resistance. [ABSTRACT FROM AUTHOR]