DICP OpenIR
Subject Area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
KeywordToluene Oxidation Ag-mn/sba-15 Redox Properties Lattice Oxygen Interaction
Source PublicationAPPLIED CATALYSIS B-ENVIRONMENTAL
2013-03-27
DOI10.1016/j.apcatb.2012.12.008
Volume132Pages:353-362
Indexed BySCI
Cooperation Status
SubtypeArticle
Department5
Funding Project502
Contribution Rank待补充
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
Funding Organization2,5 ; 2,5 ; 2,5 ; 2,5
WOS SubjectChemistry, Physical ; Engineering, Environmental ; Engineering, Chemical
WOS Research AreaChemistry ; Engineering
WOS KeywordVOLATILE ORGANIC-COMPOUNDS ; OXIDE CATALYSTS ; LATTICE OXYGEN ; PHOTOCATALYTIC OXIDATION ; LOW-TEMPERATURES ; CH4 OXIDATION ; CO OXIDATION ; GAS-PHASE ; COMBUSTION ; SILVER
AbstractThe 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.
Language英语
Funding Organization2,5 ; 2,5 ; 2,5 ; 2,5
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WOS IDWOS:000315369700038
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/119512
Collection中国科学院大连化学物理研究所
Corresponding AuthorZhenping Qu
Affiliation1.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
Recommended Citation
GB/T 7714
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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