Supercapacitors based on electrochemically deposited polypyrrole nanobricks

被引：62

作者：

Dubal, D. P. ^{[1
]}

Patil, S. V. ^{[1
]}

Kim, W. B. ^{[2
]}

Lokhande, C. D. ^{[1
]}

机构：

[1] Shivaji Univ, Dept Phys, Thin Film Phys Lab, Kolhapur 416004, MS, India

[2] Gwangju Inst Sci & Technol, Dept Mat Sci & Engn, Kwangju 500712, South Korea

来源：

MATERIALS LETTERS | 2011年 / 65卷 / 17-18期

关键词：

Polymer; Thin films; COMPOSITE;

D O I：

10.1016/j.matlet.2011.05.114

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Simple and inexpensive electrodeposition method for the synthesis of polypyrrole (PPy) nanobricks has been reported. These PPy nanobricks are characterized with X-ray diffraction (XRD). Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Polypyrrole nanobricks exhibit amorphous nature as confirmed from XRD study. Based on SEM and TEM analysis, the formation of the spherical bunches of PPy nanobricks with average size of about 20-30 nm are inferred. The electrochemical performance of PPy electrode was evaluated by cyclic voltammetry (CV) and galvanostatic charge-discharge techniques. A high specific capacitance of 476 F.g(-1) was obtained within the potential range of -0.4 to 0.6 V in 0.5 M H(2)SO(4) solution. Moreover, PPy electrode exhibited high discharge/charge efficiency of 89%. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：2628 / 2631

页数：4

共 11 条

[1] Polypyrrole/carbon aerogel composite materials for supercapacitor [J].

An, Hongfang ;

Wang, Ying ;

Wang, Xianyou ;

Zheng, Liping ;

Wang, Xingyan ;

Yi, Lanhua ;

Bai, Li ;

Zhang, Xiaoyan .

JOURNAL OF POWER SOURCES, 2010, 195 (19) :6964-6969

[2]

ANSARI R, 2006, J CHEM, V195, P186

[3] Preparation and characterization of polypyrrole-coated nanosized novel ceramics [J].

Cho, GJ ;

Fung, BM ;

Glatzhofer, DT ;

Lee, JS ;

Shul, YG .

LANGMUIR, 2001, 17 (02) :456-461

[4]

Conway B.E., 1999, ELECTROCHEMICAL SUPE

[5] A novel chemical synthesis of Mn3O4 thin film and its stepwise conversion into birnessite MnO2 during super capacitive studies [J].

Dubal, D. P. ;

Dhawale, D. S. ;

Salunkhe, R. R. ;

Lokhande, C. D. .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2010, 647 (01) :60-65

[6] Singlewall carbon nanotubes covered with polypyrrole nanoparticles by the miniemulsion polymerization [J].

Ham, HT ;

Choi, YS ;

Jeong, N ;

Chung, IJ .

POLYMER, 2005, 46 (17) :6308-6315

[7] Rapid synthesis of polypyrrole nanospheres by greener mechanochemical route [J].

Palaniappan, Sp. ;

Manisankar, P. .

MATERIALS CHEMISTRY AND PHYSICS, 2010, 122 (01) :15-17

[8] Studies of deposition of and charge storage in polypyrrole-chloride and polypyrrole-carbon nanotube composites with an electrochemical quartz crystal microbalance [J].

Snook, GA ;

Chen, GZ ;

Fray, DJ ;

Hughes, M ;

Shaffer, M .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2004, 568 (1-2) :135-142

[9] An asymmetric supercapacitor using RuO2/TiO2 nanotube composite and activated carbon electrodes [J].

Wang, YG ;

Wang, ZD ;

Xia, YY .

ELECTROCHIMICA ACTA, 2005, 50 (28) :5641-5646

[10] Preparation and characterization of coaxial halloysite/polypyrrole tubular nanocomposites for electrochemical energy storage [J].

Yang, Chao ;

Liu, Peng ;

Zhao, Yongqing .

ELECTROCHIMICA ACTA, 2010, 55 (22) :6857-6864

← 1 2 →