Effect of platinum morphology on lean reduction of NO with C3H6

被引:26
作者
Balint, I
Miyazaki, A
Aika, K
机构
[1] Romanian Acad, Inst Phys Chem, Bucharest 77208, Romania
[2] Tokyo Inst Technol, Dept Environm Chem & Engn, Interdisciplinary Grad Sch Sci & Technol, Midori Ku, Yokohama, Kanagawa 2268502, Japan
关键词
D O I
10.1039/b402971b
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The relationship between the morphology (size and shape) of alumina supported Pt nanoparticles; and catalytic behaviour for lean reduction of NO with C3H6 is investigated. It is revealed that the conversion of the low index facets of the mainly cubic Pt nanocrystals of around 12 nm to higher index planes, taking place under reaction conditions, is associated with substantial changes in the catalytic activity and selectivity to reaction products.
引用
收藏
页码:2000 / 2002
页数:3
相关论文
共 15 条
[1]   Investigation of the morphology-catalytic reactivity relationship for Pt nanoparticles supported on alumina by using the reduction of NO with CH4 as a model reaction [J].
Balint, I ;
Akane, MB ;
Aika, K .
CHEMICAL COMMUNICATIONS, 2002, (10) :1044-1045
[2]   NITRIC-OXIDE DECOMPOSITION ON PT(410) [J].
BANHOLZER, WF ;
MASEL, RI .
JOURNAL OF CATALYSIS, 1984, 85 (01) :127-134
[3]   A review of the selective reduction of NOx, with hydrocarbons under lean-burn conditions with non-zeolitic oxide and platinum group metal catalysts [J].
Burch, R ;
Breen, JP ;
Meunier, FC .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2002, 39 (04) :283-303
[4]   The effect of promoters on Pt/Al2O3 catalysts for the reduction of NO by C3H6 under lean-burn conditions [J].
Burch, R ;
Watling, TC .
APPLIED CATALYSIS B-ENVIRONMENTAL, 1997, 11 (02) :207-216
[5]   The role of step atom density on the binding and reaction of surface species [J].
Ford, LP ;
Nigg, HL ;
Blowers, P ;
Masel, RI .
JOURNAL OF CATALYSIS, 1998, 179 (01) :163-170
[6]   Role of steps and kinks in catalytic activity [J].
Ford, LP ;
Blowers, P ;
Masel, RI .
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1999, 17 (04) :1705-1709
[7]   The current state of research on automotive lean NOx catalysis [J].
Fritz, A ;
Pitchon, V .
APPLIED CATALYSIS B-ENVIRONMENTAL, 1997, 13 (01) :1-25
[8]   On the structure sensitivity of deNOx HC-SCR over Pt-beta catalysts [J].
García-Cortés, JM ;
Pérez-Ramírez, J ;
Rouzaud, JN ;
Vaccaro, AR ;
Illán-Gómez, MJ ;
de Lecea, CSM .
JOURNAL OF CATALYSIS, 2003, 218 (01) :111-122
[9]   SUPPORTED METAL-CLUSTERS - SYNTHESIS, STRUCTURE, AND CATALYSIS [J].
GATES, BC .
CHEMICAL REVIEWS, 1995, 95 (03) :511-522
[10]   Nitric oxide reduction by Cu nanoclusters supported on thin Al2O3 films [J].
Haq, S ;
Carew, A ;
Raval, R .
JOURNAL OF CATALYSIS, 2004, 221 (01) :204-212