Electrochemical Capacitive Behaviour of Multiwalled Carbon Nanotubes Modified with Electropolymeric Films of Nickel Tetraaminophthalocyanine

被引：21

作者：

Chidembo, Alfred T. ^{[1
]}

Ozoemena, Kenneth I. ^{[1
,2
]}

机构：

[1] Univ Pretoria, Dept Chem, ZA-0002 Pretoria, South Africa

[2] CSIR, Energy & Proc Unit, ZA-0001 Pretoria, South Africa

来源：

ELECTROANALYSIS | 2010年 / 22卷 / 21期

基金：

新加坡国家研究基金会;

关键词：

Supercapacitance; Nickel tetraaminophthalocyanine electropolymer; MWCNTs; Cyclic voltammetry; Galvanostatic charge-discharge; SELF-ASSEMBLED MONOLAYERS; ELECTROCATALYTIC OXIDATION; TETRA-AMINOPHTHALOCYANINE; MODIFIED ELECTRODES; BENZYL-MERCAPTO; PHTHALOCYANINE; SUPERCAPACITOR; POLYPYRROLE; POLYANILINE; COMPLEX;

D O I：

10.1002/elan.201000290

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Electrochemical capacitive behaviour of the electropolymeric nickel tetra-aminophthalocyanine (poly-NiTAPc) supported on multiwalled carbon nanotube (MWCNT) platform is described. From the data in 1 M H2SO4, the MWCNT-poly-NiTAPc exhibited superior capacitance (112 mF cm(-2) or 777 F g(-1)). The supercapacitance of the MWCNT-polyNiTAPc was found to be much better in 1 M H2SO4 than in 1 M NaOH medium. Impedance data proved that most of the stored energy of the MWCNT-poly-NiTAPc could be accessible at high frequency (1.6 kHz). The electrode is capable of undergoing continuous charge-discharge process for more than a 1000 cycles without any significant deterioration in the stability.

引用

页码：2529 / 2535

页数：7

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