Methanol carbonylation over copper-modified mordenite zeolite: A solid-state NMR study

被引：27

作者：

Zhou, Lei ^{[1
]}

Li, Shenhui ^{[1
]}

Qi, Guodong ^{[1
]}

Su, Yongchao ^{[2
,3
,4
]}

Li, Jing ^{[1
]}

Zheng, Anmin ^{[1
]}

Yi, Xianfeng ^{[1
]}

Wang, Qiang ^{[1
]}

Deng, Feng ^{[1
]}

机构：

[1] Chinese Acad Sci, Natl Ctr Magnet Resonance Wuhan, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China

[2] MIT, Dept Chem, Cambridge, MA 02139 USA

[3] MIT, Francis Bitter Magnet Lab, 77 Massachusetts Ave, Cambridge, MA 02139 USA

[4] Merck Res Labs, West Point, PA 19486 USA

来源：

SOLID STATE NUCLEAR MAGNETIC RESONANCE | 2016年 / 80卷

基金：

中国国家自然科学基金;

关键词：

Solid-state NMR; Zeolite; Methanol carbonylation; Mordenite; DIMETHYL ETHER CARBONYLATION; CATALYZED CARBONYLATION; SELECTIVE CARBONYLATION; REACTIVITY; MECHANISM; INSIGHT; SALT;

D O I：

10.1016/j.ssnmr.2016.10.003

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The carbonylation of methanol with carbon monoxide to generate methyl acetate over Cu-H-MOR and H-MOR zeolites is studied using solid-state NMR spectroscopy. It is found that the catalytic activity of Cu-H-MOR zeolite is much higher than that of H-MOR zeolite. The presence of Cu+ species enables the stabilization of dimethyl ether, which efficiently suppresses the hydrocarbon formation during carbonylation process over Cu-H-MOR zeolite. In addition, the carbon monoxide adsorbed on Cu+ site is not an active species to produce either methyl acetate or acetic acid.

引用

页码：1 / 6

页数：6

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