Abstract
Zeolitic imidazolate framework (ZIF-8, Zn(2-meIm)2) and composites based on ZIF-8 and alumina nanofibers (NafenTM), 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.
Original language | English |
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Pages (from-to) | 4215-4225 |
Number of pages | 11 |
Journal | European Journal of Organic Chemistry |
Volume | 2019 |
Issue number | 26 |
DOIs | |
Publication status | Published - 14 Jul 2019 |
Keywords
- Alumina nanofibers
- Basicity
- Heterogeneous catalysis
- Propylene glycol methyl ether
- Zeolites
- 1-METHOXY-2-PROPANOL
- METHANOL
- OXIDE
- CO2
- BASICITY
- ADSORPTION
- METAL-ORGANIC FRAMEWORKS
- CRYSTAL-SIZE
- SURFACE
- STRUCTURAL TRANSITIONS