Pandikumar, Alagarsamy ; Ramaraj, Ramasamy (2011) Aminosilicate sol-gel embedded core-shell (TiO2-Au)nps nanomaterials modified electrode for the electrochemical detection of nitric oxide Indian Journal of Chemistry, 50 . pp. 1388-1393. ISSN 0019-5103
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Abstract
A glassy carbon electrode modified with amine functionalized silicate sol-gel supported core-shell titanium dioxide-gold nanocomposite materials (EDAS/(TiO2-Au)nps) has been prepared and used as an electrochemical sensor for nitric oxide detection. The aminosilicate supported core-shell nanomaterials have been synthesized by the chemical reduction of HAuCl4 and deposition of the formed Aunps on TiO2- nanoparticles in the presence of N-[3-(trimethoxysilyl)propyl]-ethylene diamine as a support matrix and as a reducing agent. The so-prepared EDAS/(TiO2--Au)nps nanomaterials and the corresponding films have been characterized by spectral and electrochemical methods. A set of experimental conditions has been optimized for the fabrication of sensor electrode. The electrochemical properties of the GC/EDAS(TiO2-Au)nps modified electrode and the electrochemical detection of NO have been studied. The Osteryoung square wave voltammetric measurements reveals that the current response observed at the GC/EDAS(TiO2-Au)nps modified electrode for different concentrations of NO is linear with the lowest detection limit of 1 μ M.
Item Type: | Article |
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Source: | Copyright of this article belongs to National Institute of Science Communication and Information Resources. |
ID Code: | 88800 |
Deposited On: | 29 Mar 2012 15:13 |
Last Modified: | 29 Mar 2012 15:13 |
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