High performances of Pt-K/Al2O3 versus Pt-Ba/Al2O3 LNT catalysts in the simultaneous removal of NOx and soot

被引：36
作者：
Matarrese, R. [1 ]
Castoldi, L. [1 ]
Lietti, L. [1 ]
Forzatti, P. [1 ]
机构：
[1] Politecn Milan, Dipartimento Chim Ind & Ingn Chim Giulio Natta, Ctr NEMAS Nano Engineered Mat & Surfaces, I-20133 Milan, Italy
来源：
TOPICS IN CATALYSIS | 2007年 / 42-43卷 / 1-4期
关键词：
combined soot and NOx; removal; Pt-Ba/Al2O3; catalysts; Pt-K/Al2O3; nitrogen storage-reduction catalysts; catalytic soot oxidation;
D O I：
10.1007/s11244-007-0194-y
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The potentiality of a Pt-K/Al2O3 catalyst in the simultaneous removal of particulate matter (soot) and NOx is investigated in this work by means of Temperature Programmed Oxidation (TPO) experiments and Transient Response Method (TRM), and compared with Pt-Ba/Al2O3. The results point out the higher performances of K-based sample in the soot combustion as compared to the Ba-based catalyst, and similar behaviour in the NO (x) -storage.
引用
收藏
页码：293 / 297
页数：5
相关论文
共 17 条
[1]  
An H., 2006, APPL CATAL B-ENVIRON, V62, P45
[2]   Simultaneous removal of NOx and soot on Pt-Ba/Al2O3 NSR catalysts [J].
Castoldi, L ;
Matarrese, R ;
Lietti, L ;
Forzatti, P .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2006, 64 (1-2) :25-34
[3]   Study of the effect of Ba loading for catalytic activity of Pt-Ba/Al2O3 model catalysts [J].
Castoldi, L ;
Nova, I ;
Lietti, L ;
Forzatti, P .
CATALYSIS TODAY, 2004, 96 (1-2) :43-52
[4]   The influence of NOx on the oxidation of metal activated diesel soot [J].
Jelles, SJ ;
Krul, RR ;
Makkee, M ;
Moulijn, JA .
CATALYSIS TODAY, 1999, 53 (04) :623-630
[5]   Soot combustion with K/MgO as catalyst [J].
Jiménez, R ;
García, X ;
Cellier, C ;
Ruiz, R ;
Gordon, AL .
APPLIED CATALYSIS A-GENERAL, 2006, 297 (02) :125-134
[6]   Soot combustion with K/MgO as catalyst II.: Effect of K-precursor [J].
Jimenez, Romel ;
Garcia, Ximena ;
Cellier, Caroline ;
Ruiz, Patricio ;
Gordon, Alfredo L. .
APPLIED CATALYSIS A-GENERAL, 2006, 314 (01) :81-88
[7]  
KOICHIRO N, 2002, 010957 SAE
[8]   Soot oxidation over NOx storage catalysts:: Activity and deactivation [J].
Krishna, K ;
Makkee, M .
CATALYSIS TODAY, 2006, 114 (01) :48-56
[9]   NOx storage reduction over Pt-Ba/γ-Al2O3 catalyst [J].
Lietti, L ;
Forzatti, P ;
Nova, I ;
Tronconi, E .
JOURNAL OF CATALYSIS, 2001, 204 (01) :175-191
[10]   Catalytic combustion of diesel soot on Co, K supported catalysts [J].
Miró, EE ;
Ravelli, F ;
Ulla, MA ;
Cornaglia, LM ;
Querini, CA .
CATALYSIS TODAY, 1999, 53 (04) :631-638
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