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Gasochromic performance of WO3 nanorod thin films for low concentration H2 sensing

Absorbance response of tungsten trioxide (WO3) nanorod thin films coated with palladium (Pd) towards hydrogen (H2) was investigated. WO3 nanorods were deposited onto quartz substrates via pulsed laser deposition (PLD) technique. Highly homogeneous arrays of nanorods in the sizes of 30 - 80 nm were o...

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Main Authors: Yaacob, Mohd. Hanif, Ou, Jian Zhen, Oh, C., Kang, J., Sberveglieri, Giorgio, Wlodarski, Wojtek
Format: Article
Language:English
Published: Elsevier 2011
Online Access:http://psasir.upm.edu.my/id/eprint/48092/1/48092.pdf
http://psasir.upm.edu.my/id/eprint/48092/
http://www.sciencedirect.com/science/article/pii/S1877705811059315
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spelling my.upm.eprints.480922016-08-04T08:47:58Z http://psasir.upm.edu.my/id/eprint/48092/ Gasochromic performance of WO3 nanorod thin films for low concentration H2 sensing Yaacob, Mohd. Hanif Ou, Jian Zhen Oh, C. Kang, J. Sberveglieri, Giorgio Wlodarski, Wojtek Absorbance response of tungsten trioxide (WO3) nanorod thin films coated with palladium (Pd) towards hydrogen (H2) was investigated. WO3 nanorods were deposited onto quartz substrates via pulsed laser deposition (PLD) technique. Highly homogeneous arrays of nanorods in the sizes of 30 - 80 nm were observed. Subsequently, 25 Å Pd was deposited onto films via dc sputtering. The Pd/WO3 nanorod thin films exhibited excellent gasochromic response when measured in the visible-NIR range (400 – 1000 nm). As low as 0.06% H2 concentration was clearly sensed. A significant reversible absorbance change and fast recovery (<2 min) were observed when the films were exposed to H2 with different concentrations. Elsevier 2011 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/48092/1/48092.pdf Yaacob, Mohd. Hanif and Ou, Jian Zhen and Oh, C. and Kang, J. and Sberveglieri, Giorgio and Wlodarski, Wojtek (2011) Gasochromic performance of WO3 nanorod thin films for low concentration H2 sensing. Procedia Engineering, 25. pp. 1065-1068. ISSN 1877-7058 http://www.sciencedirect.com/science/article/pii/S1877705811059315 10.1016/j.proeng.2011.12.262
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description Absorbance response of tungsten trioxide (WO3) nanorod thin films coated with palladium (Pd) towards hydrogen (H2) was investigated. WO3 nanorods were deposited onto quartz substrates via pulsed laser deposition (PLD) technique. Highly homogeneous arrays of nanorods in the sizes of 30 - 80 nm were observed. Subsequently, 25 Å Pd was deposited onto films via dc sputtering. The Pd/WO3 nanorod thin films exhibited excellent gasochromic response when measured in the visible-NIR range (400 – 1000 nm). As low as 0.06% H2 concentration was clearly sensed. A significant reversible absorbance change and fast recovery (<2 min) were observed when the films were exposed to H2 with different concentrations.
format Article
author Yaacob, Mohd. Hanif
Ou, Jian Zhen
Oh, C.
Kang, J.
Sberveglieri, Giorgio
Wlodarski, Wojtek
spellingShingle Yaacob, Mohd. Hanif
Ou, Jian Zhen
Oh, C.
Kang, J.
Sberveglieri, Giorgio
Wlodarski, Wojtek
Gasochromic performance of WO3 nanorod thin films for low concentration H2 sensing
author_facet Yaacob, Mohd. Hanif
Ou, Jian Zhen
Oh, C.
Kang, J.
Sberveglieri, Giorgio
Wlodarski, Wojtek
author_sort Yaacob, Mohd. Hanif
title Gasochromic performance of WO3 nanorod thin films for low concentration H2 sensing
title_short Gasochromic performance of WO3 nanorod thin films for low concentration H2 sensing
title_full Gasochromic performance of WO3 nanorod thin films for low concentration H2 sensing
title_fullStr Gasochromic performance of WO3 nanorod thin films for low concentration H2 sensing
title_full_unstemmed Gasochromic performance of WO3 nanorod thin films for low concentration H2 sensing
title_sort gasochromic performance of wo3 nanorod thin films for low concentration h2 sensing
publisher Elsevier
publishDate 2011
url http://psasir.upm.edu.my/id/eprint/48092/1/48092.pdf
http://psasir.upm.edu.my/id/eprint/48092/
http://www.sciencedirect.com/science/article/pii/S1877705811059315
_version_ 1643834071973888000
score 13.211869

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