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Development Of WO3 Catalytic Film For Detection Of Ethanol

Tungsten oxide (WO3) films deposited on alumina substrate were prepared by chemical vapor deposition (CVD) using tungsten hexacarbonyl (W(CO)6) powder as precursor. The structural characterization was performed using X-ray diffraction (XRD), field emission scanning electron microscope (FESEM) and at...

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Main Author: Lim, Guat Wei
Format: Thesis
Language:English
Published: 2011
Subjects:
TP1-1185 Chemical technology
Online Access:http://eprints.usm.my/43382/1/LIM%20GUAT%20WEI.pdf
http://eprints.usm.my/43382/
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spelling my.usm.eprints.43382 http://eprints.usm.my/43382/ Development Of WO3 Catalytic Film For Detection Of Ethanol Lim, Guat Wei TP1-1185 Chemical technology Tungsten oxide (WO3) films deposited on alumina substrate were prepared by chemical vapor deposition (CVD) using tungsten hexacarbonyl (W(CO)6) powder as precursor. The structural characterization was performed using X-ray diffraction (XRD), field emission scanning electron microscope (FESEM) and atomic force microscope (AFM). The responses of WO3 films towards 500 ppm of ethanol vapor were investigated at operating temperatures of 150 to 550oC. Optimization on the preparation condition parameters was performed using one-factor-at-a-time technique. The results showed that sensitivity of the developed WO3 film varied according to its preparation condition which included deposition temperature (200 to 350oC), annealing temperature (500 to 700oC) and ratio Ar(W(CO)6)/O2 (1/6 to 1/3). 2011-11 Thesis NonPeerReviewed application/pdf en http://eprints.usm.my/43382/1/LIM%20GUAT%20WEI.pdf Lim, Guat Wei (2011) Development Of WO3 Catalytic Film For Detection Of Ethanol. Masters thesis, Universiti Sains Malaysia.
institution Universiti Sains Malaysia
building Hamzah Sendut Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Sains Malaysia
content_source USM Institutional Repository
url_provider http://eprints.usm.my/
language English
topic TP1-1185 Chemical technology
spellingShingle TP1-1185 Chemical technology
Lim, Guat Wei
Development Of WO3 Catalytic Film For Detection Of Ethanol
description Tungsten oxide (WO3) films deposited on alumina substrate were prepared by chemical vapor deposition (CVD) using tungsten hexacarbonyl (W(CO)6) powder as precursor. The structural characterization was performed using X-ray diffraction (XRD), field emission scanning electron microscope (FESEM) and atomic force microscope (AFM). The responses of WO3 films towards 500 ppm of ethanol vapor were investigated at operating temperatures of 150 to 550oC. Optimization on the preparation condition parameters was performed using one-factor-at-a-time technique. The results showed that sensitivity of the developed WO3 film varied according to its preparation condition which included deposition temperature (200 to 350oC), annealing temperature (500 to 700oC) and ratio Ar(W(CO)6)/O2 (1/6 to 1/3).
format Thesis
author Lim, Guat Wei
author_facet Lim, Guat Wei
author_sort Lim, Guat Wei
title Development Of WO3 Catalytic Film For Detection Of Ethanol
title_short Development Of WO3 Catalytic Film For Detection Of Ethanol
title_full Development Of WO3 Catalytic Film For Detection Of Ethanol
title_fullStr Development Of WO3 Catalytic Film For Detection Of Ethanol
title_full_unstemmed Development Of WO3 Catalytic Film For Detection Of Ethanol
title_sort development of wo3 catalytic film for detection of ethanol
publishDate 2011
url http://eprints.usm.my/43382/1/LIM%20GUAT%20WEI.pdf
http://eprints.usm.my/43382/
_version_ 1643710729313845248
score 13.211869

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