Origin of the ZnCl2 Effect on CH3ReO3/γ-Al2O3 in Olefin Metathesis

被引：15

作者：

Tovar, Trenton M. ^{[1
]}

Stewart, S. Michael ^{[1
]}

Scott, Susannah L. ^{[1
,2
]}

机构：

[1] Univ Calif Santa Barbara, Dept Chem Engn, Santa Barbara, CA 93106 USA

[2] Univ Calif Santa Barbara, Dept Chem & Biochem, Santa Barbara, CA 93106 USA

来源：

TOPICS IN CATALYSIS | 2012年 / 55卷 / 7-10期

基金：

美国国家科学基金会;

关键词：

Olefin metathesis; Methyltrioxorhenium; Zinc chloride; Promoter; EXAFS; HYDROXYL-GROUPS; GAMMA-ALUMINA; METHYLTRIOXORHENIUM; COMPLEXES; CATALYSTS; SITES;

D O I：

10.1007/s11244-012-9831-1

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The origin of the promoting effect of ZnCl2 on CH3ReO3 supported on gamma-Al2O3, resulting in a dramatic increase in its olefin metathesis activity, was investigated by elemental analysis, IR, NMR, EXAFS, and active site counting. Dispersed ZnCl2 enables the formation of more numerous Re active sites, which themselves have higher per-site activities. These sites also possess Re-Cl interactions.

引用

页码：530 / 537

页数：8

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