Layer-by-layer self-assembled nanostructured phthalocyaninatoiron(II)/SWCNT-poly(m-aminobenzenesulfonic acid) hybrid system on gold surface: Electron transfer dynamics and amplification of H2O2 response

被引：51

作者：

Pillay, Jeseelan ^{[1
]}

Ozoemena, Kenneth I. ^{[1
]}

机构：

[1] Univ Pretoria, Dept Chem, Mol & Nanomat Electrochem Lab, ZA-0002 Pretoria, South Africa

来源：

ELECTROCHIMICA ACTA | 2009年 / 54卷 / 22期

基金：

新加坡国家研究基金会;

关键词：

Single-walled carbon nanotubes; Nanostructured iron(II)phthalocyanine; Layer-by-layer self-assembly; Cyclic voltammetry; Impedance spectroscopy; Electron transfer kinetics; Hydrogen peroxide detection; WALLED CARBON NANOTUBE-OCTA(HYDROXYETHYLTHIO)PHTHALOCYANINATOIRON(II); CATIONIC BIPOLAR AMPHIPHILES; ULTRATHIN MULTILAYER FILMS; TETRASULFONATED PHTHALOCYANINE; CONSECUTIVE ADSORPTION; SOLUTION PH; MONOLAYER; NANOTUBES; COBALT; COMPLEXES;

D O I：

10.1016/j.electacta.2008.12.056

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The fabrication of nanostructured platform of poly(m-aminobenzenesulfonic acid) functionalised single-walled carbon nanotubes (SWCNTs-PABS)-iron(II)phthalocyanine nanoparticles (nanoFePc) using layer-by-layer(LBL) self-assembly strategy is described. The substrate build-up, via strong electrostatic interaction, was monitored using atomic force microscopy (AFM) and electrochemical measurements. As the number of bilayers is increased, the electron transfer kinetics of the ferricyaninde/ferrocyanide redox probe is decreased, while the electrochemical reduction of H2O2 at a constant concentration is amplified. The amplification of the electrochemical response to H2O2 detection suggests that this type of electrode could provide an important nano-architectural sensing platform for the development of a sensor. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：5053 / 5059

页数：7