A comparative study of CuO/TiO2-SnO2, CuO/TiO2 and CuO/SnO2 catalysts for low-temperature CO oxidation

被引：41

作者：

Li, Kairong ^{[1
]}

Wang, Yaojie ^{[1
]}

Wang, Shurong ^{[1
]}

Zhu, Baolin ^{[1
]}

Zhang, Shoumin ^{[1
]}

Huang, Weiping ^{[1
]}

Wu, Shihua ^{[1
]}

机构：

[1] Nankai Univ, Dept Chem, Tianjin 300071, Peoples R China

来源：

JOURNAL OF NATURAL GAS CHEMISTRY | 2009年 / 18卷 / 04期

基金：

中国国家自然科学基金;

关键词：

sol-gel dialytic processes; CuO/TiO2-SnO2; catalyst; low-temperature CO oxidation; SUPPORTED AU CATALYSTS; COMBUSTION METHOD; BEHAVIOR; SURFACE; OXIDES;

D O I：

10.1016/S1003-9953(08)60144-9

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Nanometer SnO2 particles were synthesized by sol-gel dialytic processes and used as a support to prepare CuO supported catalysts via a deposition-precipitation method. The samples were characterized by means of TG-DTA, XRD, H-2-TPR and XPS. The catalytic activity of the CuO/TiO2-SnO2 catalysts was markedly depended on the loading of CuO, and the optimum CuO loading was 8 wt.% (T-100 = 80 degrees C). The CuO/TiO2-SnO2 catalysts exhibited much higher catalytic activity than the CuO/TiO2 and CuO/SnO2 catalysts. H-2-TPR result indicated that a large amount of CuO formed the active site for CO oxidation in 8 wt.% CuO/TiO2-SnO2 catalyst.

引用

页码：449 / 452

页数：4

共 14 条

[1] Selective CO oxidation over CuO-CeO2 catalysts prepared via the urea-nitrate combustion method [J].

Avgouropoulos, G ;

Ioannides, T .

APPLIED CATALYSIS A-GENERAL, 2003, 244 (01) :155-167

[2] SURFACE INTERACTION-MODEL OF GAMMA-ALUMINA-SUPPORTED METAL-OXIDES [J].

CHEN, Y ;

ZHANG, LF .

CATALYSIS LETTERS, 1992, 12 (1-3) :51-62

[3] Influence of pre-treatment on the low-temperature activity of Pt/ceria [J].

Holmgren, A ;

Azarnoush, F ;

Fridell, E .

APPLIED CATALYSIS B-ENVIRONMENTAL, 1999, 22 (01) :49-61

[4] Complete oxidation of CO, ethanol, and ethyl acetate over copper oxide supported on titania and ceria modified titania [J].

Larsson, PO ;

Andersson, A .

JOURNAL OF CATALYSIS, 1998, 179 (01) :72-89

[5] Composition and structure of tin/vanadium oxide surfaces for chemical sensing applications [J].

Lavacchi, A ;

Cortigiani, B ;

Rovida, G ;

Bardi, U ;

Atrei, A ;

Angelucci, R ;

Dori, L ;

Nicoletti, S ;

Poggi, A .

SENSORS AND ACTUATORS B-CHEMICAL, 2000, 71 (1-2) :123-126

[6] Supported Au catalysts for low-temperature CO oxidation prepared by impregnation [J].

Lee, SJ ;

Gavriilidis, A .

JOURNAL OF CATALYSIS, 2002, 206 (02) :305-313

[7] Positive Effect of Water Vapor on CO Oxidation at Low Temperature over Pd/CeO2-TiO2 Catalyst [J].

Liang, Feixue ;

Zhu, Huaqing ;

Qin, Zhangfeng ;

Wang, Hui ;

Wang, Guofu ;

Wang, Jianguo .

CATALYSIS LETTERS, 2008, 126 (3-4) :353-360

[8] CO oxidation over palladium- and sodium-promoted tin dioxide: catalyst characterization and temperature-programmed studies [J].

Mirkelamoglu, B ;

Karakas, G .

APPLIED CATALYSIS A-GENERAL, 2005, 281 (1-2) :275-284

[9] Solid state gas sensors [J].

Moseley, PT .

MEASUREMENT SCIENCE AND TECHNOLOGY, 1997, 8 (03) :223-237

[10] Surface and catalytic properties of Cu-Ce-O composite oxides prepared by combustion method [J].

Rao, GR ;

Sahu, HR ;

Mishra, BG .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2003, 220 (1-3) :261-269

← 1 2 →