One-step synthesis of Ni3S2 nanorod@Ni(OH) 2 nanosheet core-shell nanostructures on a three-dimensional graphene network for high-performance supercapacitors

Weijia Zhou; Xiehong Cao; Zhiyuan Zeng; Wenhui Shi; Yuanyuan Zhu; Qingyu Yan; Hong Liu; Jiyang Wang; Hua Zhang

doi:10.1039/c3ee40155c

One-step synthesis of Ni₃S₂ nanorod@Ni(OH) ₂ nanosheet core-shell nanostructures on a three-dimensional graphene network for high-performance supercapacitors

Weijia Zhou, Xiehong Cao, Zhiyuan Zeng, Wenhui Shi, Yuanyuan Zhu, Qingyu Yan, Hong Liu^*, Jiyang Wang, Hua Zhang

^*Corresponding author for this work

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

570 Citations (Scopus)

Abstract

A three-dimensional graphene network (3DGN) grown on nickel foam is an excellent template for the synthesis of graphene-based composite electrodes for use in supercapacitors. Ni(OH)₂ nanosheets coated onto single-crystal Ni₃S₂ nanorods grown on the surface of the 3DGN (referred to as the Ni₃S₂@Ni(OH)₂/3DGN) are synthesized using a one-step hydrothermal reaction. SEM, TEM, XRD and Raman spectroscopy are used to investigate the morphological and structural evolution of the Ni ₃S₂@Ni(OH)₂/3DGN. Detailed electrochemical characterization shows that the Ni₃S₂@Ni(OH) ₂/3DGN exhibits high specific capacitance (1277 F g^-1 at 2 mV s^-1 and 1037.5 F g^-1 at 5.1 A g^-1) and areal capacitance (4.7 F cm^-2 at 2 mV s^-1 and 3.85 F cm^-2 at 19.1 mA cm^-2) with good cycling performance (99.1% capacitance retention after 2000 cycles).

Original language	English
Pages (from-to)	2216-2221
Number of pages	6
Journal	Energy and Environmental Science
Volume	6
Issue number	7
DOIs	https://doi.org/10.1039/c3ee40155c
Publication status	Published - Jul 2013
Externally published	Yes

ASJC Scopus Subject Areas

Environmental Chemistry
Renewable Energy, Sustainability and the Environment
Nuclear Energy and Engineering
Pollution

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1039/c3ee40155c

Cite this

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title = "One-step synthesis of Ni3S2 nanorod@Ni(OH) 2 nanosheet core-shell nanostructures on a three-dimensional graphene network for high-performance supercapacitors",

abstract = "A three-dimensional graphene network (3DGN) grown on nickel foam is an excellent template for the synthesis of graphene-based composite electrodes for use in supercapacitors. Ni(OH)2 nanosheets coated onto single-crystal Ni3S2 nanorods grown on the surface of the 3DGN (referred to as the Ni3S2@Ni(OH)2/3DGN) are synthesized using a one-step hydrothermal reaction. SEM, TEM, XRD and Raman spectroscopy are used to investigate the morphological and structural evolution of the Ni 3S2@Ni(OH)2/3DGN. Detailed electrochemical characterization shows that the Ni3S2@Ni(OH) 2/3DGN exhibits high specific capacitance (1277 F g-1 at 2 mV s-1 and 1037.5 F g-1 at 5.1 A g-1) and areal capacitance (4.7 F cm-2 at 2 mV s-1 and 3.85 F cm-2 at 19.1 mA cm-2) with good cycling performance (99.1\% capacitance retention after 2000 cycles).",

author = "Weijia Zhou and Xiehong Cao and Zhiyuan Zeng and Wenhui Shi and Yuanyuan Zhu and Qingyu Yan and Hong Liu and Jiyang Wang and Hua Zhang",

year = "2013",

month = jul,

doi = "10.1039/c3ee40155c",

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issn = "1754-5692",

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T1 - One-step synthesis of Ni3S2 nanorod@Ni(OH) 2 nanosheet core-shell nanostructures on a three-dimensional graphene network for high-performance supercapacitors

AU - Zhou, Weijia

AU - Cao, Xiehong

AU - Zeng, Zhiyuan

AU - Shi, Wenhui

AU - Zhu, Yuanyuan

AU - Yan, Qingyu

AU - Liu, Hong

AU - Wang, Jiyang

AU - Zhang, Hua

PY - 2013/7

Y1 - 2013/7

N2 - A three-dimensional graphene network (3DGN) grown on nickel foam is an excellent template for the synthesis of graphene-based composite electrodes for use in supercapacitors. Ni(OH)2 nanosheets coated onto single-crystal Ni3S2 nanorods grown on the surface of the 3DGN (referred to as the Ni3S2@Ni(OH)2/3DGN) are synthesized using a one-step hydrothermal reaction. SEM, TEM, XRD and Raman spectroscopy are used to investigate the morphological and structural evolution of the Ni 3S2@Ni(OH)2/3DGN. Detailed electrochemical characterization shows that the Ni3S2@Ni(OH) 2/3DGN exhibits high specific capacitance (1277 F g-1 at 2 mV s-1 and 1037.5 F g-1 at 5.1 A g-1) and areal capacitance (4.7 F cm-2 at 2 mV s-1 and 3.85 F cm-2 at 19.1 mA cm-2) with good cycling performance (99.1% capacitance retention after 2000 cycles).

AB - A three-dimensional graphene network (3DGN) grown on nickel foam is an excellent template for the synthesis of graphene-based composite electrodes for use in supercapacitors. Ni(OH)2 nanosheets coated onto single-crystal Ni3S2 nanorods grown on the surface of the 3DGN (referred to as the Ni3S2@Ni(OH)2/3DGN) are synthesized using a one-step hydrothermal reaction. SEM, TEM, XRD and Raman spectroscopy are used to investigate the morphological and structural evolution of the Ni 3S2@Ni(OH)2/3DGN. Detailed electrochemical characterization shows that the Ni3S2@Ni(OH) 2/3DGN exhibits high specific capacitance (1277 F g-1 at 2 mV s-1 and 1037.5 F g-1 at 5.1 A g-1) and areal capacitance (4.7 F cm-2 at 2 mV s-1 and 3.85 F cm-2 at 19.1 mA cm-2) with good cycling performance (99.1% capacitance retention after 2000 cycles).

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