Synthesis of zinc oxide nanorods and nanoparticles by chemical route and their comparative study as ethanol sensors

A comparative study of sensing response of zinc oxide nanoparticles and nanorods to ethanol vapours has been reported in this paper. Zinc oxide powder has been synthesized as nanoparticles and nanorods by following a chemical route. The reaction temperature is found to be playing a critical role in...

Full description

Saved in:
Bibliographic Details
Published in:Sensors and actuators. B, Chemical Chemical, 2008-12, Vol.135 (1), p.352-357
Main Authors: Singh, Ravi Chand, Singh, Onkar, Singh, Manmeet Pal, Chandi, Paramdeep Singh
Format: Article
Language:English
Subjects:
Ethanol
Ethyl alcohol
Nanoparticles
Nanorods
Nanostructure
Oxides
Sensors
Sintering (powder metallurgy)
Zinc oxide
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A comparative study of sensing response of zinc oxide nanoparticles and nanorods to ethanol vapours has been reported in this paper. Zinc oxide powder has been synthesized as nanoparticles and nanorods by following a chemical route. The reaction temperature is found to be playing a critical role in the selective synthesis of morphologically distinct nanostructures. Synthesized zinc oxide powder was characterized by using TEM and XRD techniques. Zinc oxide samples were deposited as thick films to act as gas sensors and their comparative response to ethanol vapours was investigated at different temperatures and concentrations. In this work the effect of sintering temperature on the particle size and sensor sensitivity was also studied. The studies revealed that particle size increases with the sintering temperature while sensitivity decreases. The investigations also revealed that sensing response of ZnO nanoparticles is exceptionally higher than that of ZnO nanorods.
ISSN:0925-4005
1873-3077
DOI:10.1016/j.snb.2008.09.004