Effects of various alkali metal cations on the synthesis, crystallization and catalytic properties of NKX-2 aluminophosphites
Abstract
Alkali metal-containing NKX-2 (M-NKX-2) aluminophosphite crystals were hydrothermally synthesized in the Al2O3-P2O5-Me2O-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.
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233. Effects of Various Alkali Metal Cations on the Synthesis, Crystallization and Catalytic Properties of NKX-2 Aluminophosphites.pdf (323.03 Ko)
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