Preparation of Zeolite-like Pillared Metal(IV) Phosphate Materials

✍ Scribed by J.Santamarı́a González; A. Jiménez-López; Marı́a Martı́nez Lara

• Book ID: 102604723
• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 320 KB
• Volume: 120
• Category: Article
• ISSN: 0022-4596
• DOI: 10.1006/jssc.1995.1424

✦ Synopsis

It is possible to obtain mixed aminopropyl sil-aluminum sesquioxanes by simultaneous hydrolysis of (3-aminopropyl)triethoxysilane and aluminum (III) diisopropoxide-2,4-pentanedionate with the stoichiometric amount of water in methanol. These oligomers are intercalated in a (M(I V))-phosphate in which the number of (\mathrm{POH}) groups are controlled substituting POH groups by phenyl phosphonates. The zeolite-like pillared materials obtained after thermal treatment at (600^{\circ} \mathrm{C}) have high surface areas (up to (126 \mathrm{~m}^{2} \mathrm{~g}^{-1}) ) and high total acidity (up to (2.11 \mathrm{mmol}) of (\mathrm{NH}_{3}) desorbed between (100-500^{\circ} \mathrm{C}) ). XPS reveals that (\mathrm{Al}) has tetrahedral coordination in these materials. @1995 Academic Press, Inc.