| 학회 |
한국화학공학회 |
| 학술대회 |
2015년 가을 (10/21 ~ 10/23, 일산 KINTEX) |
| 권호 |
21권 2호, p.2189 |
| 발표분야 |
촉매 및 반응공학 |
| 제목 |
Suppressed N2O formation during NH3 selective catalytic reduction using vanadium on zeolitic microporous TiO2 |
| 초록 |
Emission of N2O from mobile and off-road engine is now being currently regulated because of its high impact compared to that of CO2, thereby implying that N2O formation from the exhaust gas aftertreatment system should be suppressed. Selective catalytic reduction using vanadium supported TiO2 catalyst in mobile and off-road engine has been considered to be major source for N2O emission in the system. Here we have demonstrated that vanadium catalyst supported on zeolitic microporous TiO2 obtained from the hydrothermal reaction of bulk TiO2 at 400 K in the presence of LiOH suppresses significantly the N2O emission compared to conventional VOx/TiO2 catalyst, while maintaining the excellent NOx reduction, which was ascribed to the location of VOx domain in the micropore of TiO2, resulting in the strong metal support interaction. The use of zeolitic microporous TiO2 provides a new way of preparing SCR catalyst with a high thermal stability and superior catalytic performance. It can be also extended further to the other catalytic system employing TiO2-based substrate. |
| 저자 |
조성준1, 김도희2, 송인학2, 윤승희2, CHANGSHUAI1, 이현정1, 이승관1
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| 소속 |
1전남대, 2서울대 |
| 키워드 |
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| E-Mail |
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| 원문파일 |
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