典型文献
Effect of different supports on activity of Mn-Ce binary oxides catalysts for toluene combustion
文献摘要：
The effects of support materials on catalytic performance were investigated in catalytic removal of toluene.And the Mn-Ce binary oxides as active components were supported on ZrO2,SiO2,γ-Al2O3 and TiO2 support materials.Many techniques,including X-ray diffraction(XRD),Brunauer-Emmett-Teller method(BET),X-ray photoelectron spectroscopy(XPS),temperature-programmed reduction(TPR)and NH3-temperature-programmed desorption(NH3-TPD),were used to characterize physicochemical properties.Among the different catalysts,the MnCe/ZrO2 catalyst with the lowest specific surface area(39.7 m2/g)shows the best catalytic activity.In terms of toluene conversion,the activity order is as follows:MnCe/ZrO2＞MnCe/TiO2 ≈ MnCe/SiO2＞MnCe/Al2O3.The better performance of MnCe/ZrO2 should be attributed to the low-temperature reducibility,and abundant surface species(Mn4+and lattice oxygen).And XPS and TPR results reveal that more surface abundant Mn and Ce elements generate good interaction in MnCe/ZrO2.The weak interaction between metal oxide and support also boosts the dispersion and complete reduction of MnCe oxides at low temperature.In addition,the in-situ DRIFTS results clarify that the carbonate species are main intermediates in MnCe/ZrO2 sample during surface reaction process.
文献关键词：
中图分类号：
作者姓名：
Lei Li;Liping Song;Zhaoyang Fei;Wei Chu;Xiaofeng Luo;Jinlong Yan
作者机构：
School of Chemistry and Chemical Engineering,Yancheng Institute of Technology,Yancheng 224051,China;State Key Laboratory of Materials-Oriented Chemical Engineering,College of Chemical Engineering,Nanjing Tech University,Nanjing 211816,China;Department of Chemical Engineering,Sichuan University,Chengdu 610065,China
文献出处：
引用格式：
[1]Lei Li;Liping Song;Zhaoyang Fei;Wei Chu;Xiaofeng Luo;Jinlong Yan-.Effect of different supports on activity of Mn-Ce binary oxides catalysts for toluene combustion)[J].稀土学报（英文版）,2022(04):645-651
A类：
MnCe,Mn4+and
B类：
Effect,different,supports,activity,binary,oxides,catalysts,toluene,combustion,effects,materials,catalytic,performance,were,investigated,removal,And,as,active,components,supported,ZrO2,SiO2,Al2O3,TiO2,Many,techniques,including,ray,diffraction,Brunauer,Emmett,Teller,method,BET,photoelectron,spectroscopy,XPS,temperature,programmed,reduction,TPR,NH3,desorption,TPD,used,characterize,physicochemical,properties,Among,lowest,specific,surface,area,shows,best,In,terms,conversion,order,follows,better,should,attributed,reducibility,abundant,species,lattice,oxygen,results,reveal,that,more,elements,generate,good,interaction,weak,between,metal,also,boosts,dispersion,complete,addition,situ,DRIFTS,clarify,carbonate,main,intermediates,sample,during,reaction,process
AB值：
0.502435
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