Combustion synthesis of graphene and ultracapacitor performance

Bulletin of Materials Science

关键词: Combustion synthesis;    graphene;    ultracapacitor performance.;   

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Graphene sheets are synthesized by a simple method starting from graphitic oxide as a precursor. Reaction of graphitic oxide at 250 °C with a combustion mixture of urea and ammonium nitrate results in the formation of thin graphene sheets. Graphene formation is characterized by XRD, TGA, XPS and TEM. Graphene materials synthesized by thismethod are investigated as an ultracapacitor material. Specific capacitance values of about 70 F/g are obtained at a current density of 100 mA/g by usingKOH as an electrolyte.

【 授权许可】

CC BY