Title

Combustion synthesis of graphene and ultracapacitor performance.

Authors

KISHORE, M; SRIMATHI, P; KUMAR, SUNDEEP; ADDEPALLI, SWARNAGOWRI; SWAMINATHAN, SRINIVASAN; TILAK, VINAYAK; COLBORN, ROBERT

Abstract

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 this method 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 using KOH as an electrolyte.

Subjects

SELF-propagating high-temperature synthesis; GRAPHENE; SUPERCAPACITORS; PERFORMANCE evaluation; ELECTROLYTES; ELECTRIC capacity

Publication

Bulletin of Materials Science, 2013, Vol 36, Issue 4, p667

ISSN

0250-4707

Publication type

Academic Journal

DOI

10.1007/s12034-013-0527-3