Comparative studies of the N2O/H2, N2O/CO, H2/O2 and CO/O2 reactions on supported gold catalysts:: effect of the addition of various oxides

被引：87
作者：
Gluhoi, AC
Dekkers, MAP
Nieuwenhuys, BE
机构：
[1] Leiden Inst Chem, Dept Heterogeneous Catalysis & Surface Chem, NL-2300 RA Leiden, Netherlands
[2] Fluor Daniel BV, NL-2003 EJ Haarlem, Netherlands
来源：
JOURNAL OF CATALYSIS | 2003年 / 219卷 / 01期
关键词：
gold; nitrous oxide; carbon monoxide; hydrogen; oxygen; additives; transition metal oxides; alkali metal oxides;
D O I：
10.1016/S0021-9517(03)00185-4
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 reduction of N2O with H-2 and CO has been investigated on Au/TiO2, Au/Al2O3, Au/(MOx)-O-1/(MOx)-O-II/Al2O3, and Au/MOx/Al2O3 (M-I, (II), M = Li, Rb, Mg, Co, Mn, Ce, La, Ti). In addition, for comparison, the oxidation reactions of H-2 and CO with O-2 have been studied on some selected catalysts. All the samples are highly active at low temperatures for all the reactions. The oxides added to Au/Al2O3 improve the catalytic performance of gold. Interesting and synergistic effects were observed when a mixture of metal oxides is added to Au/Al2O3, e.g., Rb2O (Li2O) and CeOx. Possible mechanisms are proposed. (C) 2003 Elsevier Inc. All rights reserved.
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页码：197 / 205
页数：9
相关论文
共 46 条
[21]   NOVEL GOLD CATALYSTS FOR THE OXIDATION OF CARBON-MONOXIDE AT A TEMPERATURE FAR BELOW 0-DEGREES-C [J].
HARUTA, M ;
KOBAYASHI, T ;
SANO, H ;
YAMADA, N .
CHEMISTRY LETTERS, 1987, (02) :405-408
[22]   Catalysis of gold nanoparticles deposited on metal oxides [J].
Haruta, M .
CATTECH, 2002, 6 (03) :102-115
[23]   Size- and support-dependency in the catalysis of gold [J].
Haruta, M .
CATALYSIS TODAY, 1997, 36 (01) :153-166
[24]   GOLD CATALYSTS PREPARED BY COPRECIPITATION FOR LOW-TEMPERATURE OXIDATION OF HYDROGEN AND OF CARBON-MONOXIDE [J].
HARUTA, M ;
YAMADA, N ;
KOBAYASHI, T ;
IIJIMA, S .
JOURNAL OF CATALYSIS, 1989, 115 (02) :301-309
[25]  
Haruta M., 1997, CATAL SURV JPN, V1, P61, DOI [10.1023/A:1019068728295, DOI 10.1023/A:1019068728295]
[26]   Strong promotional effects of Li, K, Rb and Cs on the Pt-catalysed reduction of NO by propene [J].
Konsolakis, M ;
Yentekakis, IV .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2001, 29 (02) :103-113
[27]   The reduction of NO by propene over Ba-promoted Pt/γ-Al2O3 catalysts [J].
Konsolakis, M ;
Yentekakis, IV .
JOURNAL OF CATALYSIS, 2001, 198 (01) :142-150
[28]   LOW-TEMPERATURE CO OXIDATION OVER AU/TIO2 AND AU/SIO2 CATALYSTS [J].
LIN, SD ;
BOLLINGER, M ;
VANNICE, MA .
CATALYSIS LETTERS, 1993, 17 (3-4) :245-262
[29]   Catalytic role of gold in gold-based catalysts: A density functional theory study on the CO oxidation on gold [J].
Liu, ZP ;
Hu, P ;
Alavi, A .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (49) :14770-14779
[30]   Catalytic CO oxidation by a gold nanoparticle: A density functional study [J].
Lopez, N ;
Norskov, JK .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (38) :11262-11263
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