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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

Jeseelan , Pillay and Ozoemena, Kenneth I. (2009) 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. Electrochimica Acta, 54 . pp. 5053-5059. ISSN 0013-4686

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Abstract

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.

Item Type:Article
Subjects:Material Science > Nanochemistry
ID Code:9208
Deposited By:Mr Saleh Khamlich
Deposited On:21 May 2010 10:53
Last Modified:21 May 2010 10:53

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