Polyaniline-MnO2 nanotube hybrid nanocomposite as supercapacitor electrode material in acidic electrolyte

被引：176

作者：

Jaidev ^{[1
]}

Jafri, Razzak Imran ^{[1
]}

Mishra, Ashish Kumar ^{[1
]}

Ramaprabhu, Sundara ^{[1
]}

机构：

[1] Indian Inst Technol, AENL, NFMTC, Dept Phys, Madras 600036, Tamil Nadu, India

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2011年 / 21卷 / 44期

关键词：

HYDROUS RUTHENIUM OXIDE; MANGANESE OXIDE; PSEUDOCAPACITANCE PROPERTIES; ELECTROCHEMICAL PROPERTIES; HYDROTHERMAL SYNTHESIS; CONDUCTING POLYMERS; CARBON NANOTUBES; DIOXIDE; MNO2; COMPOSITES;

D O I：

10.1039/c1jm13191e

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：

Herein, we report a preparation method of a novel binary hybrid nanocomposite based on polyaniline (PANI) and alpha-MnO2 nanotubes (MNTs) by in situ polymerization. The polymerization is carried out in acidic medium using alpha-MnO2 nanotubes as oxidant. A symmetrical supercapacitor is fabricated and the electrochemical performance of the supercapacitor is investigated by cyclic voltammetry (CV), chronopotentiometry (CP) and electrochemical impedance spectroscopy (EIS) techniques using 1.0 M H2SO4 as electrolyte. The nanocomposite shows maximum specific capacitance of 626 F g(-1) and corresponding energy density of 17.8 W h kg(-1), as calculated from the charge-discharge curve at a specific current density of 2 A g(-1) in the potential range 0-0.7 V.

引用

页码：17601 / 17605

页数：5

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