Organotemplate-free synthesis of an open-framework magnesium aluminophosphate with proton conduction properties

Abstract

A new open-framework magnesium aluminophosphate MgAlP₂O₇(OH)(H₂O)₂ (denoted as JU102) has been hydrothermally synthesized by using an organotemplate-free synthetic route in the Al₂O₃–P₂O₅–MgO–H₂O system. JU102 exhibits novel 4-connected zeolite-like topology with 8-ring channels. The existence of coordinated water and extensive H-bonds in the structure endows JU102 with unique proton conduction properties.