MnO2 grown in situ on graphene@CNTs as electrode materials for supercapacitors

Junjiao Chen; Ying Huang; Xiang Zhang; Xuefang Chen; Chao Li

doi:10.1016/j.ceramint.2015.06.099

MnO₂ grown in situ on graphene@CNTs as electrode materials for supercapacitors

Junjiao Chen, Ying Huang, Xiang Zhang, Xuefang Chen, Chao Li

School of Chemistry and Chemical Engineering

Northwestern Polytechnical University Xian

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

35 Scopus citations

Abstract

Three-dimensional (3D) graphene@CNTs@MnO₂ (GCM) nanocomposites materials have been fabricated by a facile two-step method. The structure, morphology and electrochemical properties of the 3D nanocomposites were investigated by XRD, TG, Raman, SEM, TEM and electrochemical measurements. The 3D forest-like rGO@CNTs (GC) serves as both the backbone and ideal electron pathway for MnO₂. With this sophisticated configuration, the 3D GCM nanocomposites exhibit a specific capacitance of 245 F g^-1 at 0.5 A g^-1, excellent cycling stability (91.4% retention after 2000 cycles at 1 A g^-1) and high rate capability. These excellent capacitive performances may make the as-prepared nanocomposites as promising electrode materials for supercapacitors.

Original language	English
Pages (from-to)	12680-12685
Number of pages	6
Journal	Ceramics International
Volume	41
Issue number	10
DOIs	https://doi.org/10.1016/j.ceramint.2015.06.099
State	Published - 8 Jun 2015

Keywords

B. Nanocomposites
CNTs
Graphene
MnO
Supercapacitor

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title = "MnO2 grown in situ on graphene@CNTs as electrode materials for supercapacitors",

abstract = "Three-dimensional (3D) graphene@CNTs@MnO2 (GCM) nanocomposites materials have been fabricated by a facile two-step method. The structure, morphology and electrochemical properties of the 3D nanocomposites were investigated by XRD, TG, Raman, SEM, TEM and electrochemical measurements. The 3D forest-like rGO@CNTs (GC) serves as both the backbone and ideal electron pathway for MnO2. With this sophisticated configuration, the 3D GCM nanocomposites exhibit a specific capacitance of 245 F g-1 at 0.5 A g-1, excellent cycling stability (91.4% retention after 2000 cycles at 1 A g-1) and high rate capability. These excellent capacitive performances may make the as-prepared nanocomposites as promising electrode materials for supercapacitors.",

keywords = "B. Nanocomposites, CNTs, Graphene, MnO, Supercapacitor",

author = "Junjiao Chen and Ying Huang and Xiang Zhang and Xuefang Chen and Chao Li",

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doi = "10.1016/j.ceramint.2015.06.099",

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TY - JOUR

T1 - MnO2 grown in situ on graphene@CNTs as electrode materials for supercapacitors

AU - Chen, Junjiao

AU - Huang, Ying

AU - Zhang, Xiang

AU - Chen, Xuefang

AU - Li, Chao

PY - 2015/6/8

Y1 - 2015/6/8

N2 - Three-dimensional (3D) graphene@CNTs@MnO2 (GCM) nanocomposites materials have been fabricated by a facile two-step method. The structure, morphology and electrochemical properties of the 3D nanocomposites were investigated by XRD, TG, Raman, SEM, TEM and electrochemical measurements. The 3D forest-like rGO@CNTs (GC) serves as both the backbone and ideal electron pathway for MnO2. With this sophisticated configuration, the 3D GCM nanocomposites exhibit a specific capacitance of 245 F g-1 at 0.5 A g-1, excellent cycling stability (91.4% retention after 2000 cycles at 1 A g-1) and high rate capability. These excellent capacitive performances may make the as-prepared nanocomposites as promising electrode materials for supercapacitors.

AB - Three-dimensional (3D) graphene@CNTs@MnO2 (GCM) nanocomposites materials have been fabricated by a facile two-step method. The structure, morphology and electrochemical properties of the 3D nanocomposites were investigated by XRD, TG, Raman, SEM, TEM and electrochemical measurements. The 3D forest-like rGO@CNTs (GC) serves as both the backbone and ideal electron pathway for MnO2. With this sophisticated configuration, the 3D GCM nanocomposites exhibit a specific capacitance of 245 F g-1 at 0.5 A g-1, excellent cycling stability (91.4% retention after 2000 cycles at 1 A g-1) and high rate capability. These excellent capacitive performances may make the as-prepared nanocomposites as promising electrode materials for supercapacitors.

KW - B. Nanocomposites

KW - CNTs

KW - Graphene

KW - MnO

KW - Supercapacitor

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U2 - 10.1016/j.ceramint.2015.06.099

DO - 10.1016/j.ceramint.2015.06.099

M3 - 文章

AN - SCOPUS:84955345169

SN - 0272-8842

VL - 41

SP - 12680

EP - 12685

JO - Ceramics International

JF - Ceramics International

IS - 10

ER -

MnO₂ grown in situ on graphene@CNTs as electrode materials for supercapacitors

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Keywords

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