The role of copper species on Cu/γ-Al2O3 catalysts for NH3-SCO reaction

被引：103

作者：

Liang, Chunxia ^{[1
,2
]}

Li, Xinyong ^{[1
,2
,3
]}

Qu, Zhenping ^{[1
,2
]}

Tade, Moses ^{[3
]}

Liu, Shaomin ^{[3
]}

机构：

[1] Dalian Univ Technol, Sch Environm Sci & Technol, Key Lab Ind Ecol & Environm Engn, Dalian 116024, Peoples R China

[2] Dalian Univ Technol, Sch Environm Sci & Technol, State Key Lab Fine Chem, Dalian 116024, Peoples R China

[3] Curtin Univ, Dept Chem Engn, Perth, WA 6845, Australia

来源：

APPLIED SURFACE SCIENCE | 2012年 / 258卷 / 08期

关键词：

NH3-SCO; Cu/gamma-Al2O3; Dispersion; Copper species; PROMOTED COPPER; CO OXIDATION; AMMONIA; REDUCTION; SURFACE; OXIDE; NO; NITROGEN; TEMPERATURES; DISPERSION;

D O I：

10.1016/j.apsusc.2011.12.017

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：

UV-vis spectra, XRD, H-2-TPR, TEM and ESR were used to characterize a series of Cu/gamma-Al2O3 catalysts, which were prepared by incipient wetness impregnation using copper nitrate, copper acetate or copper sulfate as precursors, to study the role of Cu species on Cu/gamma-Al2O3 catalysts for NH3-SCO reaction. It was found that the mixture of CuO phase and CuAl2O4 phase formed on various Cu/gamma-Al2O3 catalysts, and the Cu species and dispersion had significant influence on the Cu/gamma-Al2O3 activity. Highly dispersed CuO phase on the support would be related with its high activity for the NH3-SCO reaction. (C) 2011 Elsevier B. V. All rights reserved.

引用

页码：3738 / 3743

页数：6

共 30 条

[1] The selective catalytic oxidation of NH3 over Fe-ZSM-5 [J].

Akah, A ;

Cundy, C ;

Garforth, A .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2005, 59 (3-4) :221-226

[2] A study of the mechanism of selective conversion of ammonia to nitrogen on Ni/γ-Al2O3 under strongly oxidising conditions [J].

Amblard, M ;

Burch, R ;

Southward, BWL .

CATALYSIS TODAY, 2000, 59 (3-4) :365-371

[3] Reduction of NO by CO on Cu/ZrO2/Al2O3 catalysts: Characterization and catalytic activities [J].

Bellido, J. D. A. ;

Assaf, E. M. .

FUEL, 2009, 88 (09) :1673-1679

[4] Abatement of ammonia and amines from waste gases: a summary [J].

Busca, G ;

Pistarino, C .

JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES, 2003, 16 (02) :157-163

[5] The synergetic mechanism between copper species and ceria in NO abatement over Cu/CeO2 catalysts [J].

Chen, Jinfa ;

Zhan, Yingying ;

Zhu, Junjiang ;

Chen, Chongqi ;

Lin, Xingyi ;

Zheng, Qi .

APPLIED CATALYSIS A-GENERAL, 2010, 377 (1-2) :121-127

[6] Catalytic activity of Co-Mg-Al, Cu-Mg-Al and Cu-Co-Mg-Al mixed oxides derived from hydrotalcites in SCR of NO with ammonia [J].

Chmielarz, L ;

Kustrowski, P ;

Rafalska-Lasocha, A ;

Majda, D ;

Dziembaj, R .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2002, 35 (03) :195-210

[7] Copper exchanged beta zeolites for the catalytic oxidation of ammonia [J].

Curtin, T ;

Lenihan, S .

CHEMICAL COMMUNICATIONS, 2003, (11) :1280-1281

[8] Yttria-stabilized zirconia supported copper oxide catalyst .1. Effect of oxygen vacancy of support on copper oxide reduction [J].

Dow, WP ;

Wang, YP ;

Huang, TJ .

JOURNAL OF CATALYSIS, 1996, 160 (02) :155-170

[9] CHARACTERIZATION OF CU-AL2O3 CATALYSTS [J].

FRIEDMAN, RM ;

FREEMAN, JJ ;

LYTLE, FW .

JOURNAL OF CATALYSIS, 1978, 55 (01) :10-28

[10] Selective low temperature NH3 oxidation to N2 on copper-based catalysts [J].

Gang, L ;

van Grondelle, J ;

Anderson, BG ;

van Santen, RA .

JOURNAL OF CATALYSIS, 1999, 186 (01) :100-109

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