▎ 摘　　要

NOVELTY - The composite comprises a graphene-based material that is doped with nitrogen or has a nitrogen-containing species, and 10 wt.% of a conducting polymer arranged on the graphene-based material as a layer having uniform thickness. The graphene-based material comprises or consists of reduced graphene oxide. USE - The composite is useful for forming an electrode (claimed), for electrochemical supercapacitor applications, lithium batteries, rechargeable batteries or metal-air-batteries, bio sensors, gas sensors and hybrid electrochemical devices, and in the manufacture of substrate for surface enhanced resonance spectroscopy, where the electrode is a transparent or semi-transparent film electrode that is useful in solar energy conversion devices. ADVANTAGE - The composite improves power density, reversibility, cycle life and cycling stability of the electrochemical supercapacitor, and has improved charge transfer properties. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method of preparing a composite comprising a conducting polymer and a graphene-based material.