Optical hydrogen sensing properties of nanostructured Pd/MoO3 films.
In this work, molybdenum trioxide (MoO3) nanostructured films were deposited onto quartz substrates via thermal evaporation of MoO3 powder. Subsequently, a catalytic palladium (Pd) layer was deposited onto MoO3 layer by e-beam evaporation. Scanning electron microscopy (SEM) revealed MoO3 nanorods gr...
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| Format: | Article |
| Language: | English English |
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American Scientific Publishers
2011
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| Online Access: | http://psasir.upm.edu.my/id/eprint/23495/ http://psasir.upm.edu.my/id/eprint/23495/1/Optical%20hydrogen%20sensing%20properties%20of%20nanostructured%20Pd.pdf |
| _version_ | 1848844773777997824 |
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| author | Yaacob, Mohd. Hanif Yu, J. Latham, K. Kalantar-Zadeh, K. Wlodarski, W. |
| author_facet | Yaacob, Mohd. Hanif Yu, J. Latham, K. Kalantar-Zadeh, K. Wlodarski, W. |
| author_sort | Yaacob, Mohd. Hanif |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | In this work, molybdenum trioxide (MoO3) nanostructured films were deposited onto quartz substrates via thermal evaporation of MoO3 powder. Subsequently, a catalytic palladium (Pd) layer was deposited onto MoO3 layer by e-beam evaporation. Scanning electron microscopy (SEM) revealed MoO3 nanorods grown in various directions and X-ray diffraction (XRD) confirmed the growth of orthorhombic MoO3. Optical hydrogen (H2) sensing performance of nanostructured Pd/MoO3 films were investigated at a concentration between 0.06-1%. It was observed that the nanostructured films exhibited excellent gasochromic characteristics and remarkable absorbance changes in near infrared (NIR) wavelength range (750-1000 nm) when exposed to H2. Pd/MoO3 T90% response and recovery towards 0.06% H2 were 150 and 300 s, respectively. The film operating temperature was also found as low as 120 °C. |
| first_indexed | 2025-11-15T08:36:15Z |
| format | Article |
| id | upm-23495 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T08:36:15Z |
| publishDate | 2011 |
| publisher | American Scientific Publishers |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-234952015-10-28T04:35:40Z http://psasir.upm.edu.my/id/eprint/23495/ Optical hydrogen sensing properties of nanostructured Pd/MoO3 films. Yaacob, Mohd. Hanif Yu, J. Latham, K. Kalantar-Zadeh, K. Wlodarski, W. In this work, molybdenum trioxide (MoO3) nanostructured films were deposited onto quartz substrates via thermal evaporation of MoO3 powder. Subsequently, a catalytic palladium (Pd) layer was deposited onto MoO3 layer by e-beam evaporation. Scanning electron microscopy (SEM) revealed MoO3 nanorods grown in various directions and X-ray diffraction (XRD) confirmed the growth of orthorhombic MoO3. Optical hydrogen (H2) sensing performance of nanostructured Pd/MoO3 films were investigated at a concentration between 0.06-1%. It was observed that the nanostructured films exhibited excellent gasochromic characteristics and remarkable absorbance changes in near infrared (NIR) wavelength range (750-1000 nm) when exposed to H2. Pd/MoO3 T90% response and recovery towards 0.06% H2 were 150 and 300 s, respectively. The film operating temperature was also found as low as 120 °C. American Scientific Publishers 2011 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/23495/1/Optical%20hydrogen%20sensing%20properties%20of%20nanostructured%20Pd.pdf Yaacob, Mohd. Hanif and Yu, J. and Latham, K. and Kalantar-Zadeh, K. and Wlodarski, W. (2011) Optical hydrogen sensing properties of nanostructured Pd/MoO3 films. Sensor Letters, 9 (1). pp. 16-20. ISSN 1546-198X; ESSN:1546-1971 http://www.aspbs.com/ 10.1166/sl.2011.1410 English |
| spellingShingle | Yaacob, Mohd. Hanif Yu, J. Latham, K. Kalantar-Zadeh, K. Wlodarski, W. Optical hydrogen sensing properties of nanostructured Pd/MoO3 films. |
| title | Optical hydrogen sensing properties of nanostructured Pd/MoO3 films. |
| title_full | Optical hydrogen sensing properties of nanostructured Pd/MoO3 films. |
| title_fullStr | Optical hydrogen sensing properties of nanostructured Pd/MoO3 films. |
| title_full_unstemmed | Optical hydrogen sensing properties of nanostructured Pd/MoO3 films. |
| title_short | Optical hydrogen sensing properties of nanostructured Pd/MoO3 films. |
| title_sort | optical hydrogen sensing properties of nanostructured pd/moo3 films. |
| url | http://psasir.upm.edu.my/id/eprint/23495/ http://psasir.upm.edu.my/id/eprint/23495/ http://psasir.upm.edu.my/id/eprint/23495/ http://psasir.upm.edu.my/id/eprint/23495/1/Optical%20hydrogen%20sensing%20properties%20of%20nanostructured%20Pd.pdf |