Migration of Cu Ions in SAPO-34 and Its Impact on Selective Catalytic Reduction of NOx NH3

被引：80

作者：

Vennestrom, Peter N. R. ^{[1
,2
]}

Katerinopoulou, Anna ^{[1
]}

Tiruvalam, Ramchandra R. ^{[1
]}

Kustov, Arkady ^{[1
]}

Moses, Poul G. ^{[1
]}

Concepcion, Patricia ^{[2
]}

Corma, Avelino ^{[2
]}

机构：

[1] Haldor Topsoe Res Labs, Div Res & Dev, DK-2800 Lyngby, Denmark

[2] Univ Politecn Valencia, CSIC, Inst Tecnol Quim, Valencia 46022, Spain

来源：

ACS CATALYSIS | 2013年 / 3卷 / 09期

关键词：

electron microscopy; heterogeneous catalysis; nitrogen oxides; selective catalytic reduction; zeolites; CU/SAPO-34; ZEOLITES; LOCATION; KINETICS; AMMONIA; NH3-SCR; COPPER;

D O I：

10.1021/cs400499p

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：

Migration of copper species from the surface region upon activation of Cu-SAPO-34 leads to a several-fold increase in catalytic activity for the selective catalytic reduction of NO with NH3. The temperatures required for the activation are higher than normal calcination temperatures and lead to a homogeneous transition metal distribution that renders Cu-SAPO-34 an industrially promising candidate for NO removal.

引用

页码：2158 / 2161

页数：4

共 25 条

[1]

[Anonymous], [No title captured]

[2]

Baerlocher Ch., Database of zeolite structures

[3] The State of the Art in Selective Catalytic Reduction of NOx by Ammonia Using Metal-Exchanged Zeolite Catalysts [J].

Brandenberger, Sandro ;

Kroecher, Oliver ;

Tissler, Arno ;

Althoff, Roderik .

CATALYSIS REVIEWS-SCIENCE AND ENGINEERING, 2008, 50 (04) :492-531

[4]

Bull I, 2008, Patent:US, Patent No. [7,601,662B2, 7601662]

[5] Kinetics of the selective catalytic reduction of NO by NH3 on a Cu-faujasite catalyst [J].

Delahay, G ;

Kieger, S ;

Tanchoux, N ;

Trens, P ;

Coq, B .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2004, 52 (04) :251-257

[6] The ammonia selective catalytic reduction activity of copper-exchanged small-pore zeolites [J].

Fickel, Dustin W. ;

D'Addio, Elizabeth ;

Lauterbach, Jochen A. ;

Lobo, Raul F. .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2011, 102 (3-4) :441-448

[7] Structure-activity relationships in NH3-SCR over Cu-SSZ-13 as probed by reaction kinetics and EPR studies [J].

Gao, Feng ;

Walter, Eric D. ;

Karp, Eric M. ;

Luo, Jinyong ;

Tonkyn, Russell G. ;

Kwak, Ja Hun ;

Szanyi, Janos ;

Peden, Charles H. F. .

JOURNAL OF CATALYSIS, 2013, 300 :20-29

[8]

Gekas I., 2011, U.S. Patent Appl., Patent No. [2011/0283680 A1, 20110283680]

[9]

GRUNERT W, 1994, J PHYS CHEM-US, V98, P10832

[10]

Grunert W., 2012, CHARACTERIZATION SOL

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