Synthesis of a MnO 2-graphene foam hybrid with controlled MnO 2 particle shape and its use as a supercapacitor electrode

Xiaochen Dong, Xuewan Wang, Jing Wang, Hao Song, Xingao Li, Lianhui Wang, Mary B. Chan-Park, Chang Ming Li, Peng Chen

Research output: Contribution to journalArticlepeer-review

232 Scopus citations

Abstract

A simple approach was developed to synthesize the three-dimensional (3D) hybrid of manganese dioxide (MnO 2) and graphene foam. The morphology of the MnO 2 nanostructures can be readily controlled by the solution acidity. Furthermore, we demonstrate that, serving as a free-standing supercapacitor electrode, this novel three-dimensional hybrid gives a remarkable specific capacitance (560 F/g at the current density of 0.2 A/g) and excellent cycling stability.

Original languageEnglish
Pages (from-to)4865-4870
Number of pages6
JournalCarbon
Volume50
Issue number13
DOIs
StatePublished - Nov 2012
Externally publishedYes

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