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Cited by 1,517

The DOI matches its Crossref record; 40 of the 40 references it cites were found in a registry or an index.

High-Energy MnO2 Nanowire/Graphene and Graphene Asymmetric Electrochemical Capacitors

Wu, Zhong-Shuai, Ren, Wencai, Wang, Da-Wei, Li, Feng, Liu, Bilu, Cheng, Hui-Ming·2010·ACS Nano
DOI 10.1021/nn101754k
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Abstract

In order to achieve high energy and power densities, we developed a high-voltage asymmetric electrochemical capacitor (EC) based on graphene as negative electrode and a MnO(2) nanowire/graphene composite (MGC) as positive electrode in a neutral aqueous Na(2)SO(4) solution as electrolyte. MGC was prepared by solution-phase assembly of graphene sheets and α-MnO(2) nanowires. Such aqueous electrolyte-based asymmetric ECs can be cycled reversibly in the high-voltage region of 0-2.0 V and exhibit a superior energy density of 30.4 Wh kg(-1), which is much higher than those of symmetric ECs based on graphene//graphene (2.8 Wh kg(-1)) and MGC//MGC (5.2 Wh kg(-1)). Moreover, they present a high power density (5000 W kg(-1) at 7.0 Wh kg(-1)) and acceptable cycling performance of ∼79% retention after 1000 cycles. These findings open up the possibility of graphene-based composites for applications in safe aqueous electrolyte-based high-voltage asymmetric ECs with high energy and power densities.

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Show all 40 references

Research works printed but not linked: 20

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Cited by

Metadata

Authors
Wu, Z.-S., Ren, W., Wang, D.-W., Li, F., Liu, B., & Cheng, H.-M.
Venue
ACS Nano
Publisher
American Chemical Society (ACS)
Published
2010-09-21
Volume
4
Issue
10
Pages
5835-5842
ISSN
  • 1936-0851 (ISSN-L)
  • 1936-086X
DOI
10.1021/nn101754k
OpenAlex
W2014025437
Cited by
1,517
References
40
FWCI
36.96
Type
journal article
Language
en
Open access
closed

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