Effects of Synthesis Parameters on Crystallization Behavior of K-MER Zeolite and Its Morphological Properties on Catalytic Cyanoethylation Reaction

MER-type zeolite is an interesting microporous material that has been widely used in catalysis and separation. By carefully controlling the synthesis parameters, a procedure to synthesize K-MER zeolite crystals with various morphologies has been developed. The silica, water and mineralizer content i...

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Bibliographic Details
Published in:Crystals (Basel) 2020-02, Vol.10 (2), p.64
Main Authors: Cheong, Ying-Wai, Wong, Ka-Lun, Ooi, Boon Seng, Ling, Tau Chuan, Khoerunnisa, Fitri, Ng, Eng-Poh
Format: Article
Language:English
Subjects:
catalyst
cyanoethylation of methanol
k-mer zeolite
morphology
synthesis parameter
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Summary:MER-type zeolite is an interesting microporous material that has been widely used in catalysis and separation. By carefully controlling the synthesis parameters, a procedure to synthesize K-MER zeolite crystals with various morphologies has been developed. The silica, water and mineralizer content in the synthesis gel, as well as crystallization time and temperature, have a profound impact on the crystallization kinetics, resulting in zeolite solids with various degrees of crystallinity, crystal sizes and shapes. K-MER zeolite crystals with nanorod, bullet-like, prismatic and wheatsheaf-like morphologies have been successfully obtained. The catalytic performances of the K-MER zeolites in cyanoethylation of methanol, under novel non-microwave instant heating, have been investigated. The zeolite in nanosize form shows the best catalytic performance (94.1% conversion, 100% selectivity) while the bullet-like zeolite gives poorest catalytic performance (44.2% conversion, 100% selectivity).
ISSN:2073-4352
2073-4352
DOI:10.3390/cryst10020064