Synthesis of MnO2/graphene/carbon nanotube nanostructured ternary composite for supercapacitor electrodes with high rate capability

Yongchuan Liu; Dawei He; Jiahua Duan; Yongsheng Wang; Shulei Li

doi:10.1016/j.matchemphys.2014.04.020

Synthesis of MnO₂/graphene/carbon nanotube nanostructured ternary composite for supercapacitor electrodes with high rate capability

Yongchuan Liu, Dawei He^*, Jiahua Duan, Yongsheng Wang, Shulei Li

^*Corresponding author for this work

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

44 Citations (Scopus)

Abstract

A composite of graphene nanosheets (GNS) decorated with manganese dioxide (MnO₂) nanoparticles and interconnected by carbon nanotubes (CNTs) has been synthesized through a facile chemical method. SEM results suggest a homogeneous distribution of MnO₂ nanoparticles (50-80 nm in size) on graphene nanosheets and excellent interconnectivity by CNTs. The MnO ₂/GNS/CNTs electrode exhibits excellent rate capability and significantly improved cycling stability (95% capability retained after 1000 cycles), and a high capacitance of 240 F g^-1 is obtained for nanoscale MnO₂. In addition, the method for the synthesis of MnO ₂/GNS/CNTs composites is simple and can be easily scaled up to real industrial manufacturing.

Original language	English
Pages (from-to)	141-146
Number of pages	6
Journal	Materials Chemistry and Physics
Volume	147
Issue number	1-2
DOIs	https://doi.org/10.1016/j.matchemphys.2014.04.020
Publication status	Published - 15 Sept 2014
Externally published	Yes

Keywords

Chemical synthesis
Electrochemical properties
Nanostructures
Oxides

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10.1016/j.matchemphys.2014.04.020

Cite this

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title = "Synthesis of MnO2/graphene/carbon nanotube nanostructured ternary composite for supercapacitor electrodes with high rate capability",

abstract = "A composite of graphene nanosheets (GNS) decorated with manganese dioxide (MnO2) nanoparticles and interconnected by carbon nanotubes (CNTs) has been synthesized through a facile chemical method. SEM results suggest a homogeneous distribution of MnO2 nanoparticles (50-80 nm in size) on graphene nanosheets and excellent interconnectivity by CNTs. The MnO 2/GNS/CNTs electrode exhibits excellent rate capability and significantly improved cycling stability (95% capability retained after 1000 cycles), and a high capacitance of 240 F g-1 is obtained for nanoscale MnO2. In addition, the method for the synthesis of MnO 2/GNS/CNTs composites is simple and can be easily scaled up to real industrial manufacturing.",

keywords = "Chemical synthesis, Electrochemical properties, Nanostructures, Oxides",

author = "Yongchuan Liu and Dawei He and Jiahua Duan and Yongsheng Wang and Shulei Li",

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doi = "10.1016/j.matchemphys.2014.04.020",

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journal = "Materials Chemistry and Physics",

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T1 - Synthesis of MnO2/graphene/carbon nanotube nanostructured ternary composite for supercapacitor electrodes with high rate capability

AU - Liu, Yongchuan

AU - He, Dawei

AU - Duan, Jiahua

AU - Wang, Yongsheng

AU - Li, Shulei

PY - 2014/9/15

Y1 - 2014/9/15

N2 - A composite of graphene nanosheets (GNS) decorated with manganese dioxide (MnO2) nanoparticles and interconnected by carbon nanotubes (CNTs) has been synthesized through a facile chemical method. SEM results suggest a homogeneous distribution of MnO2 nanoparticles (50-80 nm in size) on graphene nanosheets and excellent interconnectivity by CNTs. The MnO 2/GNS/CNTs electrode exhibits excellent rate capability and significantly improved cycling stability (95% capability retained after 1000 cycles), and a high capacitance of 240 F g-1 is obtained for nanoscale MnO2. In addition, the method for the synthesis of MnO 2/GNS/CNTs composites is simple and can be easily scaled up to real industrial manufacturing.

AB - A composite of graphene nanosheets (GNS) decorated with manganese dioxide (MnO2) nanoparticles and interconnected by carbon nanotubes (CNTs) has been synthesized through a facile chemical method. SEM results suggest a homogeneous distribution of MnO2 nanoparticles (50-80 nm in size) on graphene nanosheets and excellent interconnectivity by CNTs. The MnO 2/GNS/CNTs electrode exhibits excellent rate capability and significantly improved cycling stability (95% capability retained after 1000 cycles), and a high capacitance of 240 F g-1 is obtained for nanoscale MnO2. In addition, the method for the synthesis of MnO 2/GNS/CNTs composites is simple and can be easily scaled up to real industrial manufacturing.

KW - Chemical synthesis

KW - Electrochemical properties

KW - Nanostructures

KW - Oxides

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U2 - 10.1016/j.matchemphys.2014.04.020

DO - 10.1016/j.matchemphys.2014.04.020

M3 - Article

AN - SCOPUS:84902382848

SN - 0254-0584

VL - 147

SP - 141

EP - 146

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

IS - 1-2

ER -

Synthesis of MnO₂/graphene/carbon nanotube nanostructured ternary composite for supercapacitor electrodes with high rate capability

Abstract

Keywords

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