Preparation and enhanced capacitance of core-shell polypyrrole/polyaniline composite electrode for supercapacitors

被引：232

作者：

Mi, Hongyu ^{[2
,3
]}

Zhang, Xiaogang ^{[1
]}

Ye, Xiangguo ^{[2
]}

Yang, Sudong ^{[2
]}

机构：

[1] Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Engn, Nanjing 210016, Peoples R China

[2] Xinjiang Univ, Inst Appl Chem, Urumqi 830046, Peoples R China

[3] Xian Jiaotong Univ, Coll Sci, Xian 710049, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2008年 / 176卷 / 01期

关键词：

core-shell structure; polypyrrole/polyaniline composite; supercapacitor;

D O I：

10.1016/j.jpowsour.2007.10.070

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Polypyrrole (PPy) nanotubes were synthesized by using the complex of methyl orange (MO)/FeCl3 as a template. Then the core-shell polypyrrole/polyaniline (PPy/PANI) composite was prepared by in situ chemical oxidation polymerization of aniline on the surface of PPy nanotubes. The morphology and molecular structure were characterized by transmission electron microscopy (TEM), infrared spectroscopy (IR) and X-ray diffraction (XRD). TEM images confirmed that the composite was core-shell nanotubes. The electrochemical properties of the PPy/PANI composite electrode were investigated by cyclic voltammetry (CV), galvanostatic charge-discharge and electrochemical impedance spectroscopy (EIS). The electrochemical experiments showed that the specific capacitance of the PPy/PANI composite was 416 F g(-1) in 1 M H2SO4 electrolyte and 291 F g(-1) in 1 M KCl electrolyte. Furthermore, the composite electrode exhibited a good rate capability and maintained 91% of initial capacity at a current density of 15 mA cm(-2) in 1 M H2SO4 electrolyte. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：403 / 409

页数：7

共 28 条

[1] Polymer-based redox supercapacitors: A comparative study [J].

Arbizzani, C ;

Mastragostino, M ;

Meneghello, L .

ELECTROCHIMICA ACTA, 1996, 41 (01) :21-26

[2]

Arbizzani C., 1997, HDB ORGANIC CONDUCTI, V4, P595

[3] Characterization and long-term performance of polyaniline-based electrochemical capacitors [J].

Bélanger, D ;

Ren, XM ;

Davey, J ;

Uribe, F ;

Gottesfeld, S .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2000, 147 (08) :2923-2929

[4]

CONWAY BE, 1998, P 8 INT SEM DOUBL LA

[5] INFLUENCE OF OXIDATION-STATE, PH, AND COUNTERION ON THE CONDUCTIVITY OF POLYANILINE [J].

FOCKE, WW ;

WNEK, GE ;

WEI, Y .

JOURNAL OF PHYSICAL CHEMISTRY, 1987, 91 (22) :5813-5818

[6] Enhanced capacitance of carbon nanotubes through chemical activation [J].

Frackowiak, E ;

Delpeux, S ;

Jurewicz, K ;

Szostak, K ;

Cazorla-Amoros, D ;

Béguin, F .

CHEMICAL PHYSICS LETTERS, 2002, 361 (1-2) :35-41

[7] Physicochemical and electrochemical characterization of polycyclopenta[2,1-b;3,4-b′]dithiophen-4-one as an active electrode for electrochemical supercapacitors [J].

Fusalba, F ;

El Mehdi, N ;

Breau, L ;

Bélanger, D .

CHEMISTRY OF MATERIALS, 1999, 11 (10) :2743-2753

[8] Electrochemical characterization of polyaniline in nonaqueous electrolyte and its evaluation as electrode material for electrochemical supercapacitors [J].

Fusalba, F ;

Gouérec, P ;

Villers, D ;

Bélanger, D .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2001, 148 (01) :A1-A6

[9] CYCLIC VOLTAMMETRY OF POLYANILINE - INTERPRETATION OF THE MIDDLE PEAK [J].

GENIES, EM ;

LAPKOWSKI, M ;

PENNEAU, JF .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1988, 249 (1-2) :97-107

[10] Electrochemically deposited polyaniline nanowire's network - A high-performance electrode material for redox supercapacitor [J].

Gupta, V ;

Miura, N .

ELECTROCHEMICAL AND SOLID STATE LETTERS, 2005, 8 (12) :A630-A632

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