Direct observation of DME carbonylation in the different channels of H-MOR zeolite by continuous-flow solid-state NMR spectroscopy

被引：55

作者：

He, Ting ^{[1
]}

Ren, Pengju ^{[1
]}

Liu, Xianchun ^{[1
]}

Xu, Shutao ^{[2
]}

Han, Xiuwen ^{[1
]}

Bao, Xinhe ^{[1
]}

机构：

[1] Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

[2] Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Natl Engn Lab Methanol Olefins, Dalian 116023, Peoples R China

来源：

CHEMICAL COMMUNICATIONS | 2015年 / 51卷 / 94期

关键词：

DIMETHYL ETHER CARBONYLATION; ACIDIC ZEOLITES; METHYL ACETATE; SELECTIVE CARBONYLATION; HETEROGENEOUS CATALYSIS; METHANOL; MORDENITE; CONVERSION; SPECIFICITY; MECHANISM;

D O I：

10.1039/c5cc07201h

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The dynamic evolution of acetyl intermediates in the two different channels of H-mordenite (H-MOR) zeolite during dimethyl ether (DME) carbonylation is tracked by using in situ solid-state NMR spectroscopy under continuous-flow conditions. Thus, the reaction path via methyl acetate produced over active sites in 8 member ring (MR) channels, followed by diffusion into 12 MR channels, is proposed.

引用

页码：16868 / 16870

页数：3

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