Two-dimensional NiCo2O4 nanosheet-coated three-dimensional graphene networks for high-rate, long-cycle-life supercapacitors

Jiang Zhou; Ying Huang; Xiehong Cao; Bo Ouyang; Wenping Sun; Chaoliang Tan; Yu Zhang; Qinglang Ma; Shuquan Liang; Qingyu Yan; Hua Zhang

doi:10.1039/c4nr06527a

Two-dimensional NiCo₂O₄ nanosheet-coated three-dimensional graphene networks for high-rate, long-cycle-life supercapacitors

Jiang Zhou, Ying Huang, Xiehong Cao, Bo Ouyang, Wenping Sun, Chaoliang Tan, Yu Zhang, Qinglang Ma, Shuquan Liang^*, Qingyu Yan, Hua Zhang

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

143 Citations (Scopus)

Abstract

We report the synthesis of two-dimensional (2D) NiCo₂O₄ nanosheet-coated three-dimensional graphene network (3DGN), which is then used as an electrode for high-rate, long-cycle-life supercapacitors. Using the 3DGN and nanoporous nanosheets, an ultrahigh specific capacitance (2173 F g^-1 at 6 A g^-1), excellent rate capability (954 F g^-1 at 200 A g^-1) and superior long-term cycling performance (94% capacitance retention after 14000 cycles at 100 A g^-1) are achieved.

Original language	English
Pages (from-to)	7035-7039
Number of pages	5
Journal	Nanoscale
Volume	7
Issue number	16
DOIs	https://doi.org/10.1039/c4nr06527a
Publication status	Published - Apr 28 2015
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2015 The Royal Society of Chemistry.

ASJC Scopus Subject Areas

General Materials Science

Access to Document

10.1039/c4nr06527a

Cite this

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title = "Two-dimensional NiCo2O4 nanosheet-coated three-dimensional graphene networks for high-rate, long-cycle-life supercapacitors",

abstract = "We report the synthesis of two-dimensional (2D) NiCo2O4 nanosheet-coated three-dimensional graphene network (3DGN), which is then used as an electrode for high-rate, long-cycle-life supercapacitors. Using the 3DGN and nanoporous nanosheets, an ultrahigh specific capacitance (2173 F g-1 at 6 A g-1), excellent rate capability (954 F g-1 at 200 A g-1) and superior long-term cycling performance (94% capacitance retention after 14000 cycles at 100 A g-1) are achieved.",

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AU - Zhou, Jiang

AU - Huang, Ying

AU - Cao, Xiehong

AU - Ouyang, Bo

AU - Sun, Wenping

AU - Tan, Chaoliang

AU - Zhang, Yu

AU - Ma, Qinglang

AU - Liang, Shuquan

AU - Yan, Qingyu

AU - Zhang, Hua

PY - 2015/4/28

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AB - We report the synthesis of two-dimensional (2D) NiCo2O4 nanosheet-coated three-dimensional graphene network (3DGN), which is then used as an electrode for high-rate, long-cycle-life supercapacitors. Using the 3DGN and nanoporous nanosheets, an ultrahigh specific capacitance (2173 F g-1 at 6 A g-1), excellent rate capability (954 F g-1 at 200 A g-1) and superior long-term cycling performance (94% capacitance retention after 14000 cycles at 100 A g-1) are achieved.

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