Porous materials of nitrogen doped graphene oxide@SnO electrode for capable supercapacitor application.

The porous materials of SnO@NGO composite was synthesized by thermal reduction process at 550 °C in presence ammonia and urea as catalyst. In this process, the higher electrostatic attraction between the SnO@NGO nanoparticles were anchored via thermal reduction reaction. These synthesized SnO@ NGO composites were confirmed by Raman, XRD, XPS, HR-TEM, and EDX results. The SnO nanoparticles were anchored in the NGO composite in the controlled nanometer scale proved by FE-TEM and BET analysis. The SnO@NGO composite was used to study the electrochemical properties of CV, GCD, and EIS analysis for supercapacitor application. The electrochemical properties of SnO@NGO exhibited the specific capacitance (~378 F/g at a current density of 4 A/g) and increasing the cycle stability up to 5000 cycles. Therefore, the electrochemical results of SnO@NGO composite could be promising for high-performance supercapacitor applications.