典型文献
Mechanistic Insight into Ethanol Dehydration over SAPO-34 Zeolite by Solid-state NMR Spectroscopy
文献摘要：
The reaction mechanism of ethanol dehydration over SAPO-34 zeolite is investigated by using solid-state NMR spectroscopy.SAPO-34 zeolites with different Si contents are prepared and their acidities are characterized by NMR experiments.The higher content of stronger Brφnsted acid sites is correlated to the higher Si content.The adsorption of ethanol on the Brφnsted acid sites in SAPO-34 leads to the formation of frustrated Lewis pairs(FLPs).Surface ethoxy species is observed by the dehydration of the FLP sites at room temperature,which can be further converted into ethene products.The decomposing of diethyl ether over Brφnsted acid sites is responsible for the formation of ethoxy species at higher reaction temperatures.Triethyloxonium ions are formed in the reaction.A plausible reaction mechanism is proposed for the dehydration of ethanol over SAPO-34.
文献关键词：
中图分类号：
作者姓名：
ZHOU Xue;WANG Chao;CHU Yueying;WANG Qiang;XU Jun;DENG Feng
作者机构：
National Centre for Magnetic Resonance in Wuhan,State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics,Wuhan Institute of Physics and Mathematics,Innovation Academy for Precision Measurement Science and Technology,Chinese Academy of Sciences,Wuhan 430071,P.R.China
文献出处：
引用格式：
[1]ZHOU Xue;WANG Chao;CHU Yueying;WANG Qiang;XU Jun;DENG Feng-.Mechanistic Insight into Ethanol Dehydration over SAPO-34 Zeolite by Solid-state NMR Spectroscopy)[J].高等学校化学研究（英文版）,2022(01):155-160
A类：
acidities,FLPs,Triethyloxonium
B类：
Mechanistic,Insight,into,Ethanol,Dehydration,over,SAPO,Zeolite,by,Solid,state,NMR,Spectroscopy,reaction,mechanism,ethanol,dehydration,investigated,using,solid,spectroscopy,zeolites,different,Si,contents,prepared,their,characterized,experiments,higher,stronger,Br,nsted,sites,correlated,adsorption,leads,formation,frustrated,Lewis,pairs,Surface,ethoxy,species,observed,room,which,can,be,further,converted,ethene,products,decomposing,diethyl,ether,responsible,temperatures,ions,formed,plausible,proposed
AB值：
0.495351
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