Synthesis and crystal structure analysis of a novel strontosilicate AES-19 having two dimensional eight-membered ring micropores

A novel microporous strontium-containing silicate material AES-19 was successfully synthesized by mechanochemical method in which a precursor material was prepared through the solid-phase mechanochemical reaction of parent materials and crystallized by the hydrothermal treatment in an alkaline solution. The crystal structure analysis demonstrated that AES-19 was composed of a unique silicate layer having a two-dimensional eight membered ring micropore system and that interlayer six-coordinated strontium atoms connected the silicate layers.

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► Novel microporous silicate AES-19 was synthesized by introducing 6-coordinated Sr.
► Solid-state mechanochemical reaction was employed in this synthesis.
► AES-19 was composed of unique silicate layers having 2-dimensional 8MR micropores.