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Issue 32, 2011
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Synthesis of Zn-containing microporous aluminophosphate with the STA-1 structure

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Abstract

Zn atoms have been incorporated into the STA-1 microporous framework (SAO framework type) for the first time. Pure Zn-containing STA-1 aluminophosphate has been obtained in the presence of either (S)-(−)-N-benzylpyrrolidine-2-methanol (BPM) or benzylpyrrolidine (BP) as structure-directing agent. Characterisation results have demonstrated that the organic molecules remain intact within the microporous framework after the hydrothermal treatment. The X-ray diffraction pattern has been indexed in the tetragonal space group I[4 with combining macron]m2 (a = 13.7828(1) Å and c = 21.9444(4) Å). Chemical analysis and 31P MAS NMR spectroscopy confirm the incorporation of ca. 4.5 Zn atoms per unit cell by isomorphous substitution of Al. This large-pore aluminophosphate has one of the lowest framework densities among the known zeolite structures, and is therefore of potential interest for applications in adsorption or catalytic processes involving bulky molecules.

Graphical abstract: Synthesis of Zn-containing microporous aluminophosphate with the STA-1 structure

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Article information


Submitted
12 Mar 2011
Accepted
03 Jun 2011
First published
18 Jul 2011

Dalton Trans., 2011,40, 8125-8131
Article type
Paper

Synthesis of Zn-containing microporous aluminophosphate with the STA-1 structure

A. B. Pinar, L. Gómez-Hortigüela, L. B. McCusker and J. Pérez-Pariente, Dalton Trans., 2011, 40, 8125
DOI: 10.1039/C1DT11045D

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