Porous materials of nitrogen doped graphene oxide@SnO2 electrode for capable supercapacitor application

Sivalingam Ramesh, H. M. Yadav, Young Jun Lee, Gwang Wook Hong, A. Kathalingam, Arumugam Sivasamy, Hyun Seok Kim, Heung Soo Kim, Joo Hyung Kim

Research output: Contribution to journalArticlepeer-review

56 Scopus citations

Abstract

The porous materials of SnO2@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 SnO2@NGO nanoparticles were anchored via thermal reduction reaction. These synthesized SnO2@ NGO composites were confirmed by Raman, XRD, XPS, HR-TEM, and EDX results. The SnO2 nanoparticles were anchored in the NGO composite in the controlled nanometer scale proved by FE-TEM and BET analysis. The SnO2@NGO composite was used to study the electrochemical properties of CV, GCD, and EIS analysis for supercapacitor application. The electrochemical properties of SnO2@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 SnO2@NGO composite could be promising for high-performance supercapacitor applications.

Original languageEnglish
Article number12622
JournalScientific Reports
Volume9
Issue number1
DOIs
StatePublished - 1 Dec 2019

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