Synthesis of mesoporous aluminophosphates-based materials using various copolymers as templates

K. O'Malley, A. Gil, T. Curtin

Research output: Contribution to journalArticlepeer-review

Abstract

The aim of this work was to study the effect that various copolymers and several synthesis conditions may have on the properties of mesoporous aluminophosphates obtained using AlCl3 and H3PO 4 as aluminium and phosphorous precursors, respectively under non-aqueous conditions. Poly(styrene-co-allyl alcohol) and various triblock type copolymers were used as structure-directing agents in an acidic medium. The parameters investigated using the poly(styrene-co-allyl alcohol) included stirring time, Al/P mole ratio, synthesis time at 40 C, calcination temperature and the type and amount of polymer used. The resulting materials were characterized by nitrogen adsorption at -196 C, X-ray diffraction (XRD), temperature-programmed ammonia desorption (TPD-NH3) and transmission electron microscopy (TEM). Mesoporous aluminophosphates with surface areas up to 540 m2/g were obtained.

Original languageEnglish
Pages (from-to)48-58
Number of pages11
JournalMicroporous and Mesoporous Materials
Volume191
DOIs
Publication statusPublished - Jun 2014

Keywords

  • Aluminophosphate
  • Mesoporous material
  • Poly(styrene-co-allyl alcohol)
  • Surfactant
  • Triblock polymer

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