典型文献
Cooperative catalytic effects between the penta-coordinated Al and Al2O3 in Al2O3-AlPO4 for aldol condensation of methyl acetate with formaldehyde to methyl acrylate
文献摘要：
The bare amorphous Al2O3-AlPO4 and Cs/Al2O3-AlPO4 catalysts were developed for the aldol condensa-tion of methyl acetate with formaldehyde to methyl acrylate.The structure and property of catalyst were characterized by XRD,XPS,BET,Pyridine-IR,FT-IR,27Al-MASNMR,NH3-/CO2-TPD and SEM.The correla-tion between structural features and acid-base properties was established,and the loading effect of the cesium species was investigated.Due to cooperative catalytic effects between the penta-coordinated Al and Al2O3,the weak-Ⅱ acid and medium acid site densities and the product selectivity were improved.While the basic site densities of these catalysts were almost in proportion to the conversion of methyl acetate.The loaded Cs could form new basic sites and change the distribution of acid sites which further enhance the catalytic performance.As a result,the 10Cs/8AlP was proved to be an optimal catalyst with the yield and selectivity of 21.2％and 85％for methyl acrylate respectively.During the reaction,a deac-tivation behavior was observed on 10Cs/8AlP catalyst due to the carbon deposition,however,it could be regenerated by thermal treatment in the air atmosphere at 400℃.
文献关键词：
中图分类号：
作者姓名：
Zhenyu Wu;Zengxi Li;Chunshan Li
作者机构：
School of Chemical Science,University of Chinese Academy of Sciences,Beijing 100049,China;Beijing Key Laboratory of Ionic Liquids Clean Process,Key Laboratory of Green Process and Engineering,Key Laboratory of Multiphase Complex Systems,Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100190,China;Zhongke Langfang,Institute of Process Engineering,Chinese Academic of Sciences,Hebei 065000,China
文献出处：
引用格式：
[1]Zhenyu Wu;Zengxi Li;Chunshan Li-.Cooperative catalytic effects between the penta-coordinated Al and Al2O3 in Al2O3-AlPO4 for aldol condensation of methyl acetate with formaldehyde to methyl acrylate)[J].中国化学工程学报（英文版）,2022(12):172-183
A类：
condensa,MASNMR,10Cs,8AlP
B类：
Cooperative,catalytic,effects,between,penta,coordinated,Al2O3,AlPO4,aldol,condensation,methyl,acetate,formaldehyde,acrylate,bare,amorphous,catalysts,were,developed,structure,property,characterized,by,XPS,BET,Pyridine,FT,27Al,NH3,TPD,correla,structural,features,acid,base,properties,was,established,loading,cesium,species,investigated,Due,cooperative,weak,medium,densities,product,selectivity,improved,While,basic,these,almost,proportion,conversion,loaded,could,new,sites,change,distribution,which,further,enhance,performance,result,optimal,yield,respectively,During,reaction,deac,tivation,behavior,observed,due,carbon,deposition,however,regenerated,thermal,treatment,air,atmosphere
AB值：
0.469549
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