| 학회 |
한국화학공학회 |
| 학술대회 |
2013년 봄 (04/24 ~ 04/26, 광주 김대중컨벤션센터) |
| 권호 |
19권 1호, p.927 |
| 발표분야 |
촉매 및 반응공학 |
| 제목 |
A fast screening method based upon combinatorial chemistry for developing perovskite-based NO oxidation catalyst |
| 초록 |
Platinum has been used in both DOC and LNT catalysts for oxidizing NO to NO2, owing to its superior NO oxidation activity. However, the perovskite (ABO3) has been attracting growing attention from the auto industry as an inexpensive alternative catalyst for NO oxidation to replace the pricey Pt metal. Developing an active and new catalyst is always very time-consuming and costly. In the present study, a fast screening method has been developed for discovering a perovskite-based NO oxidation catalysts based upon the colorimetric assay. A consecutive dual-bed reactor consisting of a perovskite-based NO oxidation catalyst in the front bed and a NOx storage catalyst (K/Al2O3) in the rear bed has been assembled into 10x10 parallel reactor system for examining the NO oxidation activity of perovskite catalysts. The oxidation of NO to NO2 proceeds in the front bed, followed by the adsorption of NOx in the rear bed. The amount of NOx adsorbed on the NOx storage catalyst well correlated with the NO oxidation activity directly measured using the conventional fixed-bed reactor. |
| 저자 |
김지호1, 남인식1, 김문규1, 윤달영1, 박상준1, 임은호1, 조병권1, 정진우2, 유승범2
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| 소속 |
1포항공과대, 2현대자동차 |
| 키워드 |
Combinatorial chemistry method; Colorimetric assay; Perovskite; NO oxidation |
| E-Mail |
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| 원문파일 |
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