| 학회 |
한국재료학회 |
| 학술대회 |
2010년 가을 (11/11 ~ 11/12, 무주리조트) |
| 권호 |
16권 2호 |
| 발표분야 |
A. Information and Sensor Materials(정보소재 및 센서) |
| 제목 |
Porous Tungsten Oxide Nanowire: Fabrication on Single Wall Carbon Nanotube Templates and Application for Gas Sensor |
| 초록 |
The tungsten oxide nanowire structure is fabricated by deposition and thermal oxidation of tungsten metal on porous single wall carbon nanotubes (SWNTs). The effects of oxidation temperature on the morphology and crystalline quality of materials are investigated by SEM, XRD, EDS and Raman analysis. The results prove that WO3 nanowire structure fabricated on SWNTs show highly porous structures; nanowires oxidized at the relatively low temperature of 400oC form a composite of SWNTs. High purity and crystalline quality of WO3 nanowires are obtained at higher oxidizing temperature. Exposure of the sensors to NO gas in the temperature range of 100–300oC resulted in the highest sensitivity at 200oC. The influence of tungsten depositing time on the sensitivity of sensor was also investigated in this work. |
| 저자 |
Nguyen Minh Vuong1, Hoang Nhat Hieu2, Nguyen Quoc Dung1, Seayong An2, Dojin Kim1
|
| 소속 |
1Department of Materials Science and Engineering, 2Chungnam National Univ. |
| 키워드 |
Tungsten oxide; Nanowire; Single wall carbon nanotube; Sensors; Porosity
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| E-Mail |
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