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

被引：36
|
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
收藏
页码：449 / 452
页数：4
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