| 학회 |
한국공업화학회 |
| 학술대회 |
2021년 가을 (11/03 ~ 11/05, 대구 엑스코(EXCO)) |
| 권호 |
25권 2호 |
| 발표분야 |
포스터-촉매 |
| 제목 |
Lean NOx reduction by CO at low temperature over bimetallic IrRu/Al2O3 catalysts with different Ir : Ru ratios |
| 초록 |
IrRu/Al2O3 bimetallic catalysts with various Ir, Ru ratios were prepared for application in the reduction of NO with CO under lean conditions. The effect on the catalytic activity and the physicochemical properties of IrRu/Al2O3 catalysts caused by introducing Ru onto Ir with different amounts is investigated. Activity results indicate that IrRu bimetallic catalysts led to a drastic enhancement of de-NOx activity in the low-temperature region, while monometallic Ir and Ru catalysts exhibited diminished or even zero activity toward NOx reduction. The synergetic effect between Ir and Ru is expected to originate from the intrinsic characteristics of the IrRu alloy phase rather than Ir and Ru acting separately as independent dual active sites. The utilization of bimetallic IrRu catalysts in NOx reduction using CO as a reductant under lean conditions is expected to enable the reduction of NOx with high efficiency at low temperatures without the need of using urea-based reductants. |
| 저자 |
송지환1, 박동찬1, 유영우2, 장태선2, 허일정2, 김도희1
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| 소속 |
1서울대, 2한국화학(연) |
| 키워드 |
CO-SCR; deNOx; bimetal
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| E-Mail |
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