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The improved reactivity of manganese catalysts by Ag in catalytic oxidation of toluene

文献类型:期刊论文

作者Qu, Zhenping1; Bu, Yibin1; Qin, Yuan1; Wang, Yi1; Fu, Qiang2
刊名applied catalysis b-environmental
出版日期2013-03-27
卷号132页码:353-362
关键词Toluene oxidation Ag-Mn/SBA-15 Redox properties Lattice oxygen Interaction
产权排序待补充
通讯作者zhenping qu
合作状况
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.
WOS标题词science & technology ; physical sciences ; technology
学科主题物理化学
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
收录类别SCI
资助信息2,5
原文出处362
语种英语
WOS记录号WOS:000315369700038
公开日期2014-09-11
源URL[http://159.226.238.44/handle/321008/119512]  
专题大连化学物理研究所_中国科学院大连化学物理研究所
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
推荐引用方式
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.(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.

入库方式: OAI收割

来源:大连化学物理研究所

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