Mechanistic Insight into Ethanol Dehydration over SAPO-34 Zeolite by Solid-state NMR Spectroscopy
Mechanistic Insight into Ethanol Dehydration over SAPO-34 Zeolite by Solid-state NMR Spectroscopy
复制标题
通过固态核磁共振波谱分析 SAPO-34 沸石上的乙醇脱水机理
DOI:
10.1007/s40242-022-1450-1
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发表时间:
2022-01
影响因子:
3.1
通讯作者:
Feng Deng
中科院分区:
文献类型:
--
作者:
Xue Zhou;Chao Wang;Yueying Chu;Qiang Wang;Jun Xu;Feng Deng
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 Brønsted acid sites is correlated to the higher Si content. The adsorption of ethanol on the Brønsted 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 Brønsted 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.
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影响因子:
4.2
作者:
Minhua Zhang;Yingzhe Yu
通讯作者:
Minhua Zhang;Yingzhe Yu
DOI:
--
发表时间:
2006
期刊:
--
影响因子:
--
作者:
A. Farrell;R. Plevin;B. Turner;Andrew D. Jones;Michael O’Hare;D. Kammen
通讯作者:
A. Farrell;R. Plevin;B. Turner;Andrew D. Jones;Michael O’Hare;D. Kammen
影响因子:
--
作者:
Zichun Wang;L. O’Dell;Xin Zeng;Can Liu;Shufang Zhao;Wenwen Zhang;M. Gaborieau;Yijiao Jiang
通讯作者:
Zichun Wang;L. O’Dell;Xin Zeng;Can Liu;Shufang Zhao;Wenwen Zhang;M. Gaborieau;Yijiao Jiang
影响因子:
--
作者:
Gurgul, J.;Zimowska, M.;Matachowski, L.
通讯作者:
Matachowski, L.
影响因子:
16.6
作者:
Yang L;Wang C;Zhang L;Dai W;Chu Y;Xu J;Wu G;Gao M;Liu W;Xu Z;Wang P;Guan N;Dyballa M;Ye M;Deng F;Fan W;Li L
通讯作者:
Li L