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
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id	my-usm-ep.43382
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spelling	my-usm-ep.433822019-04-12T05:26:28Z Development Of WO3 Catalytic Film For Detection Of Ethanol 2011-11 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 http://eprints.usm.my/43382/ http://eprints.usm.my/43382/1/LIM%20GUAT%20WEI.pdf application/pdf en public masters Universiti Sains Malaysia Pusat Pengajian Kejuteraan Kimia
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
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
qualification_level	Master's degree
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
granting_institution	Universiti Sains Malaysia
granting_department	Pusat Pengajian Kejuteraan Kimia
publishDate	2011
url	http://eprints.usm.my/43382/1/LIM%20GUAT%20WEI.pdf
_version_	1747821204894384128

Development Of WO3 Catalytic Film For Detection Of Ethanol

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