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Cited by 395

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Synthesis and Capacitive Properties of Manganese Oxide Nanosheets Dispersed on Functionalized Graphene Sheets

Zhang, Jintao, Jiang, Jianwen, Zhao, X. S.·2011·The Journal of Physical Chemistry C

Abstract

Functionalized graphene was prepared by reducing functionalized graphene oxide with poly(diallyldimethylammonium chloride) (PDDA), transferring the surface charge of reduced graphene oxide (RGO) from negative to positive. A composite material of functionalized RGO with manganese dioxide (MnO 2 ) nanosheets can be obtained by dispersing negatively charged MnO 2 nanosheets on the functionalized RGO sheets via an electrostatic coprecipitation method. The structures of composites were investigated by high-resolution transmission electron microscopy (HRTEM), which indicated that the MnO 2 nanosheets dispersed on functionalized RGO sheets, exhibiting a layered structure. The composite material exhibited enhanced capacitive performances than those of pure functionalized RGO and Na-typed birnessite (Na/MnO 2 ) sheets, attributing to the synergic effect of both components. Additionally, over 89% of original capacitance was retained after 1000 cycles, indicating a good cycle stability of the composite materials.

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Metadata

Authors
Zhang, J., Jiang, J., & Zhao, X. S.
Venue
The Journal of Physical Chemistry C
Published
2011-03-21
Volume
115
Issue
14
Pages
6448-6454
ISSN
  • 1932-7447 (ISSN-L)
  • 1932-7455
OpenAlex
W2018470181
Cited by
395
References
1
FWCI
17.92
Type
journal article
Language
en
Open access
closed

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