Catalytic oxidation of toluene over nanorod-structured Mn-Ce mixed oxides

被引：144
作者：
Liao, Yinnian [1 ,2 ]
Fu, Mingli [1 ,3 ,4 ]
Chen, Limin [1 ,3 ,4 ]
Wu, Junliang [1 ,3 ,4 ]
Huang, Bichun [1 ,3 ,4 ]
Ye, Daiqi [1 ,3 ,4 ]
机构：
[1] S China Univ Technol, Coll Environm & Energy, Guangzhou 510006, Guangdong, Peoples R China
[2] Xinjiang Univ, Coll Chem & Chem Engn, Urumqi 830046, Peoples R China
[3] Guangdong Prov Key Lab Atmospher Environm & Pollu, Guangzhou 510006, Guangdong, Peoples R China
[4] Guangdong High Educ Engn Technol Res Ctr Air Poll, Guangzhou 510006, Guangdong, Peoples R China
来源：
CATALYSIS TODAY | 2013年 / 216卷
基金：
中国国家自然科学基金;
关键词：
Nanorod-structured; Mn-Ce mixed oxides; Catalytic oxidation; Toluene; REDOX PROPERTIES; LATTICE OXYGEN; CERIA NANORODS; CO OXIDATION; COMBUSTION; SURFACE; CHLOROBENZENE; REDUCIBILITY; FORMALDEHYDE; REACTIVITY;
D O I：
10.1016/j.cattod.2013.06.017
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Nanorod-structured MnCe mixed oxides with various content of Mn were synthesized successfully. The resulting materials were characterized by SEM, TEM, HRTEM, EDX, XRD, BET, XPS, Raman, O-2-TPD and H-2-TPR. MnCe mixed oxides nanorods with high content of Mn displayed the best catalytic activity and high stability. The formation of the solid solution between manganese and cerium oxides, giving rise to more Mn4+ and oxygen vacancies, was crucial in maintaining the high activity and stability, involving the participation of the induced mobile lattice oxygen. Thus, the catalytic activity of the single metal oxide with certain morphology could be further enhanced by doping the active component to form the mixed oxides that kept with the unchanged shape, despite of their lower surface area. (c) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：220 / 228
页数：9
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