Controlled pore size of ordered mesoporous Al2O3-supported Mn/Cu catalysts for CO oxidation

被引：19
作者：
Li, Liyan [1 ,2 ]
Han, Weiliang [1 ]
Dong, Fang [1 ]
Zong, Luyao [1 ,2 ]
Tang, Zhicheng [1 ]
Zhang, Jiyi [1 ,2 ]
机构：
[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, Natl Engn Res Ctr Fine Petrochem Intermediates, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China
[2] Lanzhou Univ Technol, Sch Petr & Chem, Lanzhou 730050, Peoples R China
来源：
MICROPOROUS AND MESOPOROUS MATERIALS | 2017年 / 249卷
基金：
中国国家自然科学基金;
关键词：
CO oxidation; Self-assembly method; Pore structure; Chemisorbed oxygen; ONE-POT SYNTHESIS; WATER-GAS SHIFT; SELECTIVE OXIDATION; CUO-CEO2; CATALYSTS; COMPOSITE OXIDES; CARBON-DIOXIDE; ALUMINA; NI; PERFORMANCE; METHANE;
D O I：
10.1016/j.micromeso.2017.04.046
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
In this paper, by controlling the calcination temperature, ordered mesoporous Al2O3 with controllable pore diameters were rationally designed and synthesized by evaporation-induced self-assembly method. The CuMn-Al2O3 catalysts with different pores were synthesized by a co-impregnation method with ordered mesoporous Al2O3 as template. These catalysts expressed ordered mesoporous structure, possessed higher specific surface area and large pore volume, and owned more surface active sites, which were helpful for CO oxidation. When the calcination temperature of Al2O3 was 400 degrees C, this catalyst showed the highest catalytic activity. The reason was due to its relatively stronger redox ability and surface activity species. More Cu+ and chemisorbed oxygen concentration was very useful in achieving the highest catalytic performance. (c) 2017 Elsevier Inc. All
引用
收藏
页码：1 / 9
页数：9
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