Assembly of polypyrrole nanotube@MnO2 composites with an improved electrochemical capacitance

Jiayou Ji; Xiaoya Zhang; Jingya Liu; Linfeng Peng; Changlang Chen; Zhiliang Huang; Liang Li; Xianghua Yu; Songmin Shang

doi:10.1016/j.mseb.2015.04.004

Assembly of polypyrrole nanotube@MnO₂ composites with an improved electrochemical capacitance

Jiayou Ji, Xiaoya Zhang, Jingya Liu, Linfeng Peng, Changlang Chen, Zhiliang Huang, Liang Li, Xianghua Yu, Songmin Shang

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

48 Citations (Scopus)

Abstract

A facile strategy is presented to fabricate polypyrrole nanotube@manganese dioxide (PPy@MnO₂) composites. The effect of KMnO₄ concentration on the morphology and property of PPy@MnO₂ composites is investigated. The microstrucutres and properties of the resulting PPy@MnO₂ composites are characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive X-ray diffraction (EDX), X-ray diffraction (XRD), thermo-gravimetric analysis (TGA) and electrochemical measurements. The results indicate that the PPy@MnO₂ composites possess high specific capacitance and good cyclic stability due to the coating of MnO₂ onto PPy nanotubes. The specific capacitance of 403 F/g for the PPy@MnO₂ composite is obtained from galvanostatic charge-discharge experiment at a current density of 1 A/g, exhibiting the potential application for supercapacitors.

Original language	English
Pages (from-to)	51-56
Number of pages	6
Journal	Materials Science and Engineering B: Solid-State Materials for Advanced Technology
Volume	198
DOIs	https://doi.org/10.1016/j.mseb.2015.04.004
Publication status	Published - 1 Aug 2015

Keywords

Capacitance
Composites
MnO<inf>2</inf>
Polypyrrole

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

More information

10.1016/j.mseb.2015.04.004

Cite this

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title = "Assembly of polypyrrole nanotube@MnO2 composites with an improved electrochemical capacitance",

abstract = "A facile strategy is presented to fabricate polypyrrole nanotube@manganese dioxide (PPy@MnO2) composites. The effect of KMnO4 concentration on the morphology and property of PPy@MnO2 composites is investigated. The microstrucutres and properties of the resulting PPy@MnO2 composites are characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive X-ray diffraction (EDX), X-ray diffraction (XRD), thermo-gravimetric analysis (TGA) and electrochemical measurements. The results indicate that the PPy@MnO2 composites possess high specific capacitance and good cyclic stability due to the coating of MnO2 onto PPy nanotubes. The specific capacitance of 403 F/g for the PPy@MnO2 composite is obtained from galvanostatic charge-discharge experiment at a current density of 1 A/g, exhibiting the potential application for supercapacitors.",

keywords = "Capacitance, Composites, MnO<inf>2</inf>, Polypyrrole",

author = "Jiayou Ji and Xiaoya Zhang and Jingya Liu and Linfeng Peng and Changlang Chen and Zhiliang Huang and Liang Li and Xianghua Yu and Songmin Shang",

year = "2015",

month = aug,

day = "1",

doi = "10.1016/j.mseb.2015.04.004",

language = "English",

volume = "198",

pages = "51--56",

journal = "Materials Science and Engineering B: Solid-State Materials for Advanced Technology",

issn = "0921-5107",

publisher = "Elsevier Ltd",

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T1 - Assembly of polypyrrole nanotube@MnO2 composites with an improved electrochemical capacitance

AU - Ji, Jiayou

AU - Zhang, Xiaoya

AU - Liu, Jingya

AU - Peng, Linfeng

AU - Chen, Changlang

AU - Huang, Zhiliang

AU - Li, Liang

AU - Yu, Xianghua

AU - Shang, Songmin

PY - 2015/8/1

Y1 - 2015/8/1

N2 - A facile strategy is presented to fabricate polypyrrole nanotube@manganese dioxide (PPy@MnO2) composites. The effect of KMnO4 concentration on the morphology and property of PPy@MnO2 composites is investigated. The microstrucutres and properties of the resulting PPy@MnO2 composites are characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive X-ray diffraction (EDX), X-ray diffraction (XRD), thermo-gravimetric analysis (TGA) and electrochemical measurements. The results indicate that the PPy@MnO2 composites possess high specific capacitance and good cyclic stability due to the coating of MnO2 onto PPy nanotubes. The specific capacitance of 403 F/g for the PPy@MnO2 composite is obtained from galvanostatic charge-discharge experiment at a current density of 1 A/g, exhibiting the potential application for supercapacitors.

AB - A facile strategy is presented to fabricate polypyrrole nanotube@manganese dioxide (PPy@MnO2) composites. The effect of KMnO4 concentration on the morphology and property of PPy@MnO2 composites is investigated. The microstrucutres and properties of the resulting PPy@MnO2 composites are characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive X-ray diffraction (EDX), X-ray diffraction (XRD), thermo-gravimetric analysis (TGA) and electrochemical measurements. The results indicate that the PPy@MnO2 composites possess high specific capacitance and good cyclic stability due to the coating of MnO2 onto PPy nanotubes. The specific capacitance of 403 F/g for the PPy@MnO2 composite is obtained from galvanostatic charge-discharge experiment at a current density of 1 A/g, exhibiting the potential application for supercapacitors.

KW - Capacitance

KW - Composites

KW - MnO<inf>2</inf>

KW - Polypyrrole

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DO - 10.1016/j.mseb.2015.04.004

M3 - Journal article

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EP - 56

JO - Materials Science and Engineering B: Solid-State Materials for Advanced Technology

JF - Materials Science and Engineering B: Solid-State Materials for Advanced Technology

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