Preparation, characterization and catalytic activity for CO oxidation of SiO2 hollow spheres supporting CuO catalysts

被引：26

作者：

Song, Chunyan ^{[1
]}

Wang, Chunling ^{[1
]}

Zhu, Haiyang ^{[1
]}

Wu, Xingcai ^{[1
]}

Dong, Lin ^{[1
]}

Chen, Yi ^{[1
]}

机构：

[1] Nanjing Univ, Key Lab Mesoscop Chem, MOE, Sch Chem & Chem Engn, Nanjing 210093, Peoples R China

来源：

CATALYSIS LETTERS | 2008年 / 120卷 / 3-4期

基金：

中国国家自然科学基金;

关键词：

hollow spheres; CuO/SiO2; CO oxidation; catalytic activity;

D O I：

10.1007/s10562-007-9272-9

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：

Silica hollow spheres were synthesized by sol-gel process using carbon microspheres as templates, and used as supports for CuO/SiO2 catalysts. The samples were characterized by TEM, nitrogen adsorption-desorption, XRD and TPR, and furthermore, the catalytic performance for CO oxidation was approached. The results indicated that the catalytic activity of CuO supported on SiO2 hollow spheres exhibited much higher as compared to that supported on commercial SiO2. Enhancement of the catalytic activity may be attributed to the fact that the unique hollow spherical texture should facilitate the formation of main active species and gas diffusion in catalysts.

引用

页码：215 / 220

页数：6

共 32 条

[1] Catalytic characterization of mesoporous Ti-silica hollow spheres
Baca, M.
Li, W. J.
Du, P.
Mul, G.
Moulijn, J. A.
Coppens, M. -O.
[J]. CATALYSIS LETTERS, 2006, 109 (3-4) : 207 - 210
[2] Hollow inorganic capsules via colloid-templated layer-by-layer electrostatic assembly
Caruso, F
[J]. COLLOID CHEMISTRY II, 2003, 227 : 145 - 168
[3] Yttria-stabilized zirconia supported copper oxide catalyst .2. Effect of oxygen vacancy of support on catalytic activity for CO oxidation
Dow, WP
Huang, TJ
[J]. JOURNAL OF CATALYSIS, 1996, 160 (02) : 171 - 182
[4] Yttria-stabilized zirconia supported copper oxide catalyst .1. Effect of oxygen vacancy of support on copper oxide reduction
Dow, WP
Wang, YP
Huang, TJ
[J]. JOURNAL OF CATALYSIS, 1996, 160 (02) : 155 - 170
[5] Polyaniline/Au composite hollow spheres: Synthesis, characterization, and application to the detection of dopamine
Feng, XM
Mao, CJ
Yang, G
Hou, WH
Zhu, JJ
[J]. LANGMUIR, 2006, 22 (09) : 4384 - 4389
[6] Microwave synthesis of supported Au and Pd nanoparticle catalysts for CO oxidation
Glaspell, G
Fuoco, L
El-Shall, MS
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (37) : 17350 - 17355
[7] Vapor-phase synthesis of metallic and intermetallic nanoparticles and nanowires: Magnetic and catalytic properties
Glaspell, Garry
Abdelsayed, Victor
Saoud, Khaled M.
El-Shall, M. Samy
[J]. PURE AND APPLIED CHEMISTRY, 2006, 78 (09) : 1667 - 1689
[8] Nanocatalysis on tailored shape supports: Au and Pd nanoparticles supported on MgO nanocubes and ZnO nanobelts
Glaspell, Garry
Hassan, M. A. Hassan
Elzatahry, Ahmed
Fuoco, Lindsay
Radwan, Nagi R. E.
El-Shall, M. Samy
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (43) : 21387 - 21393
[9] Influence of supports on the activities of copper oxide species in the low-temperature NO plus CO reaction
Hu, YH
Dong, L
Shen, MM
Liu, D
Wang, J
Ding, WP
Chen, Y
[J]. APPLIED CATALYSIS B-ENVIRONMENTAL, 2001, 31 (01) : 61 - 69
[10] Synthesis and catalytic activity of stable hollow ZrO2-SiO2 spheres with mesopores in the shell wall
Jiang, YQ
Yang, SF
Ding, XF
Guo, YP
Bala, H
Zhao, JZ
Yu, KF
Wang, ZC
[J]. JOURNAL OF MATERIALS CHEMISTRY, 2005, 15 (20) : 2041 - 2046

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