에너지 전환 및 저장용 질소 도핑된 그래핀의 합성 및 특성 분석

Abstract

As the times growth, energy exhaustion and environmental problems have emerged due to high energy consumption. In order to solve these problems, development of eco-friendly and highly efficient new energy materials was required. Recently, nitrogen-doped graphene (NG) has attracted great interest due to exotic properties , such as high conductivity, excellent catalytic properties, and tunable electronic structures, which can be used as materials for energy conversion and storage application. This study reports synthesis of pyridine-N doped graphene (PY-NG) by using an acid-catalyzed dehydration reaction between graphene oxide and 3,4-diaminopyridine. In addition, the restoration of graphitic structure and the electrical properties were confirmed by diverse analytical techniques [X-Ray Diffractometer (XRD), Raman spectroscopy, Thermo gravimetric analysis (TGA), Cyclic voltammetry (CV), Galvanostatic charge-discharge (GCD), Linear sweep voltammetry (LSV), etc. for supercapacitor and electrocatalysts application. As a result, PY-NG with optimized nitrogen content was obtained in graphitic network. Therefore, this study can provide a pivot for the development of new energy materials and future researches.