| 학회 |
한국화학공학회 |
| 학술대회 |
2015년 가을 (10/21 ~ 10/23, 일산 KINTEX) |
| 권호 |
21권 2호, p.2281 |
| 발표분야 |
촉매 및 반응공학 |
| 제목 |
Effects of well-dispersed NiO on Sensor responseof SnO2-based sensor for the detection of DPGME |
| 초록 |
Sensing behaviors of SnO2 sensor and SnO2-based thick-film gas sensors promoted with NiO were investigated at low concentrations of di(propylene glycol) methyl ether (DPGME) in a flow system. The SnNi3 and SnNi(I)3 materials were prepared by physical mixing and impregnating SnO2 with 3wt% NiO, respectively at 0.1 ppm DPGME 350℃. The responses of SnO2, SnNi3 and SnNi(I)3 sensors were 26%, 42% and 68%, respectively. The SnO2-based sensors promoted with NiO shows higher sensor response than that of the SnO2 sensor. In particular, the SnNi(I)3 sensor shows the highest sensor response of 68% due to the dispersion effect of NiO on SnO2 suface. Furthermore, the high response of SnNi(I)3 sensor was maintained during multiple detection and recovery cycles without deactivation. We conclude that the SnNi(I)3 sensor developed in this study provides an excellent means for detecting DPGME at sub-ppm concentrations and that it satisfies sensor response and recovery requirements. |
| 저자 |
김재창1, 허증수1, 이덕동1, 박용섭2, 이승호2, 백근영2, 현승환2, 김지유2, 이수출1, 황병욱1, 안중희1
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| 소속 |
1경북대, 2김천고등학교 |
| 키워드 |
thin film; gas sensor; DPGME; SnO2
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| E-Mail |
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| 원문파일 |
초록 보기 |
