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学科主题物理化学
The improved reactivity of manganese catalysts by Ag in catalytic oxidation of toluene
Qu, Zhenping1; Bu, Yibin1; Qin, Yuan1; Wang, Yi1; Fu, Qiang2; Zhenping Qu
关键词Toluene Oxidation Ag-mn/sba-15 Redox Properties Lattice Oxygen Interaction
刊名APPLIED CATALYSIS B-ENVIRONMENTAL
2013-03-27
DOI10.1016/j.apcatb.2012.12.008
132页:353-362
收录类别SCI
合作性质
文章类型Article
部门归属5
项目归属502
产权排名待补充
WOS标题词Science & Technology ; Physical Sciences ; Technology
资助者2,5 ; 2,5 ; 2,5 ; 2,5
类目[WOS]Chemistry, Physical ; Engineering, Environmental ; Engineering, Chemical
研究领域[WOS]Chemistry ; Engineering
关键词[WOS]VOLATILE ORGANIC-COMPOUNDS ; OXIDE CATALYSTS ; LATTICE OXYGEN ; PHOTOCATALYTIC OXIDATION ; LOW-TEMPERATURES ; CH4 OXIDATION ; CO OXIDATION ; GAS-PHASE ; COMBUSTION ; SILVER
英文摘要The effects of Ag on Mn/SBA-15 catalysts have been investigated in the toluene catalytic oxidation. The reactivity of catalysts is related closely to the Ag/Mn molar ratio, and the sample with 1:3 of Ag/Mn molar ratio exhibits the highest reactivity for toluene oxidation, with a complete conversion at 260 degrees C. Based on the characterization results, it is found that Ag enters into MnO2 phase, and the Ag1.8Mn8O16 mixed phase forms. Meanwhile Ag leads to parts of MnO2 being transformed into Mn2O3. The Ag/Mn molar ratio has a strong influence on the molar ratio of the surface Mn4+ to Mn3+ and surface adsorbed oxygen (O-ads) to lattice oxygen (O-latt) through the interaction between silver and MnOx. The coexistence of MnO2, Mn2O3, Ag1.8Mn8O16, and the strong interactions between Ag and Mn species exhibit a good synergetic interaction, which promotes the reducibility of catalysts and the formation of abundant active lattice oxygen, thus increasing the catalytic activity of toluene oxidation. And the formation of intermediate benzaldehyde should be closely link with the lattice oxygen of the Mn based catalyst. (c) 2012 Elsevier B.V. All rights reserved.
语种英语
资助者2,5 ; 2,5 ; 2,5 ; 2,5
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WOS记录号WOS:000315369700038
引用统计
被引频次:70[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/119512
专题中国科学院大连化学物理研究所
通讯作者Zhenping Qu
作者单位1.Dalian Univ Technol, Sch Environm Sci & Technol, Key Lab Ind Ecol & Environm Engn MOE, Dalian 116024, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
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Qu, Zhenping,Bu, Yibin,Qin, Yuan,et al. The improved reactivity of manganese catalysts by Ag in catalytic oxidation of toluene[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2013,132:353-362.
APA Qu, Zhenping,Bu, Yibin,Qin, Yuan,Wang, Yi,Fu, Qiang,&Zhenping Qu.(2013).The improved reactivity of manganese catalysts by Ag in catalytic oxidation of toluene.APPLIED CATALYSIS B-ENVIRONMENTAL,132,353-362.
MLA Qu, Zhenping,et al."The improved reactivity of manganese catalysts by Ag in catalytic oxidation of toluene".APPLIED CATALYSIS B-ENVIRONMENTAL 132(2013):353-362.
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