Effect of the graphene oxide reduction temperature on supercapacitor performance

In this study, we investigated the influence of the reduction temperature on graphene oxide. After performing the thermal reduction at specific temperatures (200, 600, and 1000 °C), the morphological and crystallographic changes were investigated by several analysis methods. The reduced graphene oxi...

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Bibliographic Details
Published in:Electronic materials letters 2017, 13(4), , pp.324-329
Main Authors: Choi, Eunmi, Kim, Jaekwang, Cui, Yinhua, Choi, Kyuho, Gao, Yuan, Han, Seunghee, Pyo, Sung Gyu, Yoon, Songhun
Format: Article
Language:English
Subjects:
Accessibility
Capacitance
Characterization and Evaluation of Materials
Chemistry and Materials Science
Condensed Matter Physics
Crystallography
Electrodes
Graphene
Materials Science
Nanotechnology
Nanotechnology and Microengineering
Optical and Electronic Materials
Oxides
Supercapacitors
Thermal reduction
전자/정보통신공학
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Summary:In this study, we investigated the influence of the reduction temperature on graphene oxide. After performing the thermal reduction at specific temperatures (200, 600, and 1000 °C), the morphological and crystallographic changes were investigated by several analysis methods. The reduced graphene oxides were used as supercapacitor electrodes and analyzed with various electrochemical techniques. The capacitance exhibited an increase up to 600 °C before decreasing abruptly at 1000 °C. This behavior was ascribed to the limited ionic accessibility into the compact graphene layer.
ISSN:1738-8090
2093-6788
DOI:10.1007/s13391-017-1603-4