期刊
PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL
卷 25, 期 5, 页码 379-385出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.pnsc.2015.10.004
关键词
Graphene; Nitrogen doping; Microstructure; Supercapacitor
资金
- National Natural Science Foundation of China [11174227, J1210061]
- National Key Technology R&D Program of the Hubei Province of China [2013BHE012]
- Special Fund for the Development of Strategic Emerging Industries of Shenzhen City of China [JCYJ20140419141154246]
The influence of variant graphenes on electrochemical performance for supercapacitors was studied comparatively and systematically by using SEM, FTIR and Raman spectroscopy, cyclic voltammetry (CV), galvanostatic charge/discharge and electrochemical impedance spectroscopy (EIS). The results revealed that: 1) the nitrogen-doped graphene (N-G) electrode exhibited the highest specific capacitance at the same voltage scan rate; 2) the specific capacitance of the N-G reached up to 243.5 F/g at 1 A/g, while regular graphite oxide (GO) was 43.5 F/g and reduced graphene oxide (rGO) was 67.9 F/g; 3) N-G exhibited the best supercapacitance performance and the superior electrochemical properties, which made it an ideal electrode material for supercapacitors. (C) 2015 Chinese Materials Research Society. Production and hosting by Elsevier B.V.
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