Ionothermal approach for synthesizing A1PO-5 with hexagonal thin-plate morphology influenced by various parameters at ambient pressure
Résumé
Pure and crystalline AlPO-5 with hexagonal thin-plate morphology was synthesized ionothermally in 1-ethyl-2,3-dimethylimidazolium bromide ([edmim]Br) ionic liquid as both the solvent and structure-directing agent (SDA). The resulting microcrystalline solids were characterized using various techniques. Further studies on the influence of chemical compositions and synthesis conditions in the crystallization process of AlPO-5 were also investigated. The results showed that AlPO-5 crystals with hexagonal thin-plate morphology were obtained when [edinim]Br ionic liquid was used in ionothermal treatment. The crystallinity, size and morphology of the AlPO-5 materials were also found to be strongly influenced by two major factors, chemical composition of the gel mixture and the heating time of the gel mixture. (C) 2013 Elsevier Masson SAS. All rights reserved.