Hydrothermal Synthesis of Porous Graphene Nanosheets for Supercapacitors

Abstract:

Porous graphene has been easily synthesized by hydrothermal treating reduced graphene oxide in alkaline solution, and the porous structure was confirmed by transmission electron microscope. When used as supercapacitor electrode, porous graphene holds a specific capacitance of 88 F g^-1 at an ultra-high current density of 50 A g^-1, an increase of about 83% compared with that for the pristine graphene sheets. The results demonstrate that porous graphene opens a new and short way for ion transportation. Furthermore our findings provide a novel strategy to fabricate porous graphene and the process is simple, low-cost and environmentally friendly.

• Periodical: Applied Mechanics and Materials (Volumes 719-720)
• Pages: 119-122
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.719-720.119
• Online since: January 2015
• Authors: Zi Long Liu, Fu Jun Xia, Qing Zhong Xue*, Yong Gang Du, Qi Kai Guo
• Keywords: High Rate Capability, Ion Transportation, Porous Graphene, Super-Capacitor (SC)

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