A Rational Approach to the Ionothermal Synthesis of an AlPO₄ Molecular Sieve with an LTA‐Type Framework

Abstract

Structurally sound: The synthesis of AlPO4-LTA zeolite in ionic liquids employs 1-benzyl-3-methylimidazolium, tetramethylammonium, and fluoride ions for structuring α cages, sodalite cages, and cubes (see picture; C gray, N blue, O red, Al and P purple, F green). Selective removal of 1-benzyl-3-methylimidazolium ions results in a stable AlPO4-LTA molecular sieve. The α cages of AlPO4-LTA framework can be evacuated while maintaining structural integrity.