期刊
MATERIALS LETTERS
卷 173, 期 -, 页码 199-202出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2016.03.035
关键词
Vanadium dioxide Nanorods; Chemical vapor deposition; Sensors; Methane gas; Room temperature
资金
- National Natural Science Foundation of China [61471264]
- National Natural Science Foundation Youth Project [61101055]
- Tianjin Research Program of Application Foundation and Advanced Technology of China [15JCYBJC46800]
Vanadium dioxide nanorods with monoclinic crystalline symmetry were grown directly on the commercial ceramic substrate through thermal evaporating vanadium pentoxide powder in a tube furnace. The morphology and crystal structure of as -grown products were characterized by field emission scanning electron microscope and X-ray diffraction respectively. The results showed that the morphology of products could be affected by deposition pressure. Moreover, gas-sensing properties of VO2 nanorods sensors were carried out versus different concentration of methane at room temperature. It was found that the sensor based on VO2 norods exhibited a good performance to CH4. This was owing to the special nanorods structure of VO2 material, which providing a large specific surface area. VO2 nanorods efficiently enhanced CH4 gas-sensing performance which provides VO2 a promising semiconductor metal oxide material for application in CH4 sensor. (C) 2016 Elsevier B.V. All rights reserved.
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