| 학회 |
한국화학공학회 |
| 학술대회 |
2019년 봄 (04/24 ~ 04/26, 제주국제컨벤션센터) |
| 권호 |
25권 1호, p.1031 |
| 발표분야 |
촉매 및 반응공학(Catalysis and Reaction Engineering) |
| 제목 |
SO2 sensing properties of SnO2-based sensor promoted with Fe2O3 and TiO2 |
| 초록 |
Fine dust emission is a big social problem in Korea. A considerable amount of Fine dust is generated by the photocatalytic reaction of SO2. So, to supervise and regulate the fine dust emission, the sensor that can monitor SO2 is preferentially required. In this experiment, we fabricated SnO2-based thick film gas sensors by screen printing method. Basic requirements for gas sensor are response and recovery. This sensor showed response of 3.50 and recovery properties of 21% in 1 ppm SO2 gas at 300oC. To compensate for the poor recovery property, 5 wt% Fe2O3 and TiO2 were added, respectively. Experimental results show that the sensor calcinated at 400oC has a sensitivity of 2.75, a recovery property of 100% and an 80% recovery time of 97s, which is superior to that of the SnO2 based thick-film sensor. |
| 저자 |
김세정, 이수출, 김현지, 강후인, 우진혁, 김재창
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| 소속 |
경북대 |
| 키워드 |
촉매 |
| E-Mail |
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| 원문파일 |
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