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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2013.10
- 수록면
- 13 - 22 (10page)
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This paper reports the investigation of the physical and chemical characteristics of the prepared 3Pt-2MgO-3ZrO₂-2CeO₂/Al₂O₃ DOC, based on its hydrothermal aging. As a result of impregnating and reducing the H₂PtCl<SUB>6</SUB>ㆍ6H₂O precursor on a γ-Al₂O₃ basis, it was well dispersed into small particles with the range 2-3nm. This was because the Al₂O₃ acted as a barrier to prevent movement of the catalyst particles. For a hydrothermally aged catalyst for 9h at 700℃, its performance when purifying harmful gases decreased compared to a fresh catalyst, but its specific surface area was at the same level. This was because the performance of the catalyst was reduced by the sintering of the precious metal Pt, rather than by washcoat sintering and pore clogging. For an excessively hydrothermally aged catalyst for 9h at 850℃, Pt grew into an approximately 50nm class, formed a cluster compared to a fresh catalyst. The CeO₂ promoters also formed clusters among components of the same type, reducing their specific surface area to 114㎡/g, which was 14% less than a fresh catalyst.
목차
Abstract
1. Introduction
2. Experimental setup and method
3. Experimental results and discussion
4. Conclusions
References
참고문헌 (17)
참고문헌 신청
1. [학술지(정기간행물)] - 서충길 / 2013 / Volume Optimization of a Combined System of LNT and SCR Catalysts Considering Economic Feasibility and De-NOx Performance / 한국동력기계공학회지 17 (1) : 19 ~ 26
2. [학술지(정기간행물)] - Byung-Chul Choi / 2013 / Characteristics of the simultaneous removal of PM and NOx using CuNb-ZSM-5 coated on diesel particulate filter / Journal of Industrial and Engineering Chemistry 19 (4) : 1406 ~ 1412
3. [학술지(정기간행물)] - J. Stepanek. / 2010 / Investigation of Combinded DOC and NSRC Disel Car Exhaust Catalyst / Computers and Chemical Engineering 34 : 744 ~ 752
4. [학술지(정기간행물)] - M. H. Wiebenga. / 2012 / Deactivation Mechanism of Pt/Pd-based Oxidation Catalysts / 184 : 197 ~ 204
5. [학술지(정기간행물)] - A. Winkler. / 2009 / The Influence of Chemical and Thermal Aging on the Catalytic Activitiy of a Monolithic Diesel Oxidation Catalyst / Applied Catalysis B 93 : 177 ~ 184
2. [학술지(정기간행물)] - Byung-Chul Choi / 2013 / Characteristics of the simultaneous removal of PM and NOx using CuNb-ZSM-5 coated on diesel particulate filter / Journal of Industrial and Engineering Chemistry 19 (4) : 1406 ~ 1412
3. [학술지(정기간행물)] - J. Stepanek. / 2010 / Investigation of Combinded DOC and NSRC Disel Car Exhaust Catalyst / Computers and Chemical Engineering 34 : 744 ~ 752
4. [학술지(정기간행물)] - M. H. Wiebenga. / 2012 / Deactivation Mechanism of Pt/Pd-based Oxidation Catalysts / 184 : 197 ~ 204
5. [학술지(정기간행물)] - A. Winkler. / 2009 / The Influence of Chemical and Thermal Aging on the Catalytic Activitiy of a Monolithic Diesel Oxidation Catalyst / Applied Catalysis B 93 : 177 ~ 184
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UCI(KEPA) : I410-ECN-0101-2014-500-002742494