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NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Chemistry -Section A (IJC-A) >
IJC-A Vol.50A [2011] >
IJC-A Vol.50A(09-10) [September-October 2011] >
| Title: | Aminosilicate sol-gel embedded core-shell (TiO2-Au)nps nanomaterials modified electrode for the electrochemical detection of nitric oxide |
| Authors: | Pandikumar, Alagarsamy
Ramaraj, Ramasamy |
| Keywords: | Electrocatalysis
Sol-gel process
Modified electrodes
Sensors
Aminosilicate
Nitric oxide
Titania
Gold |
| Issue Date: | Sep-2011 |
| Publisher: | NISCAIR-CSIR, India |
| 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  M. |
| Page(s): | 1388-1393 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-0975(Online); 0376-4710(Print) |
| Source: | IJC-A Vol.50A(09-10) [September-October 2011]
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