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- Title
Facile Synthesis of Nitrogen-Doped Graphene Aerogels for Electrode Materials in Supercapacitors.
- Authors
Zhang, Yong; Zhu, Jiayi; Ren, Hongbo; Bi, Yutie; Zhang, Lin
- Abstract
Three-dimensional porous nitrogen-doped graphene aerogels ( NGAs) were synthesized by using graphene oxide ( GO) and chitosan ( CS) via a self-assembly process by one-pot hydrothermal method. The morphology and structure of the as-prepared materials were characterized by means of scanning electron microscopy, transmission electron microscopy, X-ray diffraction, XPS spectroscopy, Raman spectroscopy, nitrogen adsorption/desorption measurement and Fourier transform infrared spectroscopy. The electrochemical performance of NGAs was studied by cyclic voltammetry, galvanostatic charge/discharge and impedance spectroscopy measurements. The microstructure, surface area and capacitance of NGAs could be facilely controlled by adding different amounts of chitosan. The prepared NGA-4 showed a specific capacitance of 148.0 F/g at the discharge current density of 0.5 A/g and also retained 95.3% of the initial capacitance after 5000 cycles at the scan rate of 10 mV/s. It provided a possible way to obtain graphene based materials with high surface area and capacitance.
- Subjects
NITROGEN compound synthesis; GRAPHENE oxide; AEROGEL synthesis; SUPERCAPACITORS; MOLECULAR self-assembly
- Publication
Chinese Journal of Chemistry, 2017, Vol 35, Issue 7, p1069
- ISSN
1001-604X
- Publication type
Article
- DOI
10.1002/cjoc.201600854