Synthesis of 7-hydroxy-4-methyl coumarin over Lewis acid metal ion-exchanged ZAPO-5 molecular sieves (original) (raw)

Microporous and Mesoporous Materials, 2009

Abstract

Zinc aluminophosphate (ZAPO-5) molecular sieve was synthesized hydrothermally and ion-exchanged with Lewis acid metal ions such as Ga 3+ , In 3+ , La 3+ and Ce 3+ by wet method. The materials were characterized by XRD, FT-IR, BET, ICP-AES, 27 Al and 31 P MAS NMR, SEM, TPD ( ...

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