| 학회 |
한국화학공학회 |
| 학술대회 |
2017년 가을 (10/25 ~ 10/27, 대전컨벤션센터) |
| 권호 |
23권 2호, p.2380 |
| 발표분야 |
화학공정안전 |
| 제목 |
SO2 sensing properties of SnO2-based sensor promoted with Fe2O3 and TiO2 |
| 초록 |
We fabricated a SnO2-based thick film gas sensor promoted with Fe2O3 and TiO2 by screen printing method. The SnO2-based sensor was calcinated at various temperature range of 400-700oC. And we investigated the effect of calcination temperature on the sensor response and recovery properties for detection of ＜1ppm SO2 at 300oC. The SnO2-based sensor, which calcinated at 400oC and 500oC, has high sensor response and excellent recovery properties. However, when the SnO2-based sensor was calcinated at 600oC and 700oC, the sensor response rapidly decreased and not completely recoverd. As a result the SnO2-based sensor calcinated below 500oC provides an excellent means for detecting SO2 at sub ppb concentrations due to the TiO2 phase and alloy effects. We will discuss that the effects of the change of TiO2 phase and alloy structure on sensor response and recovery properties using SO2 sensing behaviors, XRD, XPS and SEM. |
| 저자 |
김현지1, 이수출1, 황병욱2, 류민영1, 허증수1, 김재창1
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| 소속 |
1경북대, 2한국에너지기술(연) |
| 키워드 |
가스안전 |
| E-Mail |
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| 원문파일 |
초록 보기 |
