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

The origin of the promoting effect of ZnCl 2 on CH 3 ReO 3 supported on γ-Al 2 O 3 , resulting in a dramatic increase in its olefin metathesis activity, was investigated by elemental analysis, IR, NMR, EXAFS, and active site counting. Dispersed ZnCl 2 enables the formation of more numerous Re active...

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Bibliographic Details
Published in:Topics in catalysis 2012-07, Vol.55 (7-10), p.530-537
Main Authors: Tovar, Trenton M., Stewart, S. Michael, Scott, Susannah L.
Format: Article
Language:English
Subjects:
Catalysis
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Industrial Chemistry/Chemical Engineering
Original Paper
Pharmacy
Physical Chemistry
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Summary:The origin of the promoting effect of ZnCl 2 on CH 3 ReO 3 supported on γ-Al 2 O 3 , resulting in a dramatic increase in its olefin metathesis activity, was investigated by elemental analysis, IR, NMR, EXAFS, and active site counting. Dispersed ZnCl 2 enables the formation of more numerous Re active sites, which themselves have higher per-site activities. These sites also possess Re–Cl interactions.
ISSN:1022-5528
1572-9028
DOI:10.1007/s11244-012-9831-1