Effects of various alkali metal cations on the synthesis, crystallization and catalytic properties of NKX-2 aluminophosphites

Abdullahi, Haruna and Wong, Ka-Lun and Lim, Gin Keat and Awala, Hussein and Vicente, Aurélie and Ling, Tau Chuan and Mintova, Svetlana and Ng, Eng Poh (2019) Effects of various alkali metal cations on the synthesis, crystallization and catalytic properties of NKX-2 aluminophosphites. Materials Chemistry and Physics, 222. pp. 81-86. ISSN 0254-0584

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Official URL: https://doi.org/10.1016/j.matchemphys.2018.09.082

Abstract

Alkali metal-containing NKX-2 (M-NKX-2) aluminophosphite crystals were hydrothermally synthesized in the Al2O3–P2O5–M2O–H2O system for the first time using various alkali metal hydroxides (MOH: M = Li, Na, K, Cs). The results showed that NKX-2 crystalline phase could be obtained within several hours without using harmful organic amine structure-directing agent. In addition, the alkali metal hydroxides played an important role in controlling the crystallization rate and the morphology of M-NKX-2 particles in aqueous medium. The resulting M-NKX-2 solids possessed basicity which was catalytically active in base-catalyzed cyanoethylation reaction of methanol.

Item Type: Article
Uncontrolled Keywords: Alkali metal cation containing NKX-2; Organotemplate-free synthesis; Aluminophosphite; Crystal growth; Cyanoethylation reaction
Subjects: Q Science > Q Science (General)
Q Science > QH Natural history
Divisions: Faculty of Science > Institute of Biological Sciences
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 23 Jan 2019 08:51
Last Modified: 03 Jan 2020 04:10
URI: http://eprints.um.edu.my/id/eprint/20146

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