Record Details

Enhanced acetone response in co-precipitated WO3 nanostructures upon indium doping

DSpace at IIT Bombay

View Archive Info
 
 
Field Value
 
Title Enhanced acetone response in co-precipitated WO3 nanostructures upon indium doping
 
Creator UPADHYAY, SB
MISHRA, RK
SAHAY, PP
 
Subject SPRAY-PYROLYSIS TECHNIQUE
TUNGSTEN-OXIDE FILMS
THIN-FILMS
GAS SENSOR
ELECTROCHROMIC DEVICES
SNO2 NANOPARTICLES
OPTICAL-PROPERTIES
In-doped WO3 nanostructures
Co-precipitation method
Structural and morphological studies
Acetone response characteristics
 
Description The acetone sensors based on In-doped WO3 nanostructures have been investigated for different operating temperatures and test gas concentrations. The sensor based on 1.5 at% In-doped WO3 nanostructure shows maximum response (similar to 93%) at the operating temperature of 250 degrees C for 50 ppm concentration of acetone vapor in air, and also exhibits fast response/recovery time. The XRD results confirm the monoclinic phase of the as-prepared WO3 nanostructures. TEM images reveal that there is an enhancement in the particle size upon indium doping, relative to the undoped WO3. The SEM images exhibit different surface morphology, whereas the EDX spectra confirm the presence of indium ions into the WO3 lattice. Raman spectroscopy studies also confirm the monoclinic structure of the undoped and In-doped WO3 samples. (C) 2014 Elsevier B.V. All rights reserved.
 
Publisher ELSEVIER SCIENCE SA
 
Date 2016-01-15T05:09:31Z
2016-01-15T05:09:31Z
2015
 
Type Article
 
Identifier SENSORS AND ACTUATORS B-CHEMICAL, 209,368-376
0925-4005
http://dx.doi.org/10.1016/j.snb.2014.11.138
http://dspace.library.iitb.ac.in/jspui/handle/100/17838
 
Language en