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Preparation of MoO3 Nanowhiskers
Paper Type  |
Contributed Paper |
Title |
Preparation of MoO3 Nanowhiskers |
Author |
Meechai T Tapnurat apnurat [a], [b], Supab Choopun [a], Pongsri Mangkorntong [a] and Nikorn Mangkorntong* [a] |
Email |
nikornm@gmail.com |
|
Abstract: Molybdenum oxide (MoO3) is a wide bandgap semiconductor which can be used as a gas sensor. In this work, molybdenum oxide nanowhiskers were prepared by vapor transport method. First, molybdenum oxide powder were mixed with tin oxide (SnO2) powder of the ratio of 0%, 20%, 50%, 80% and 100 % by weight. The mixed powder was grounded and pressed into the form of cylindrical tube. Then, the tube was sintered in air at 550oC for 6 h. From Field Emission Scanning Electron Microscopy (FE-SEM) results, nanowhiskers of molybdenum oxide were observed both inside and outside the tube for 50% SnO2 mixed sample. A typical nanowhisker size is about 100-300 nm wide, 520 µ m long and 80-150 nm thick. For 20% and 80% SnO2 mixed sample, nanowhiskers were observed only inside the tube but none of nanowhiskers were observed for pure MoO and pure SnO2 sample.
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Start & End Page |
421 - 425 |
Received Date |
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Revised Date |
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Accepted Date |
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Full Text |
Download |
Keyword |
molybdenum oxide, MoO3, vapor transport method, whisker, nanowhisker |
Volume |
Vol.32 No.3 (SEPTEMBER 2005) |
DOI |
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Citation |
[a] M.T.T.A., [b] , [a] S.C., [a] P.M. and [a] N.M., Preparation of MoO3 Nanowhiskers, Chiang Mai Journal of Science, 2005; 32(3): 421-425. |
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