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Tuning the Catalytic Performance of Novel Composites Based on ZIF‐8 and Nafen through Dimensional and Concentration Effects in the Synthesis of Propylene Glycol Methyl Ether
Author(s) -
Timofeeva Maria N.,
Paukshtis Evgeniy A.,
Panchenko Valenti.,
Shefer Kristina I.,
Isaeva Vera I.,
Kustov Leonid M.,
Gerasimov Evgeniy Yu.
Publication year - 2019
Publication title -
european journal of organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 1434-193X
DOI - 10.1002/ejoc.201900354
Subject(s) - propylene oxide , catalysis , chemistry , methanol , zeolitic imidazolate framework , ether , imidazolate , polyvinyl alcohol , selectivity , chemical engineering , oxide , organic chemistry , polymer , metal organic framework , ethylene oxide , adsorption , engineering , copolymer
Zeolitic imidazolate framework (ZIF‐8, Zn(2‐meIm) 2 ) and composites based on ZIF‐8 and alumina nanofibers (Nafen TM ), i.e. ZIF‐8/Nafen, were demonstrated to be efficient heterogeneous catalysts for the reaction of methanol with propylene oxide to produce propylene glycol methyl ether (PGME), which is a member of the family of glycol ether solvents used for a wide variety of consumer products and industrial applications. Both the reaction rate and the selectivity toward PGME were found to decrease with increasing crystal size of the ZIF‐8 material, which was related to the change in the number of basic sites and their accessibility. The investigation of ZIF‐8/Nafen composites revealed the dependence of their catalytic performance on the amount of the ZIF‐8 component. In particular, the activity was affected by the crystal size of the ZIF‐8 material and the nature of acid‐base sites in its framework.