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Site-Specific Iron Substitution in STA-28, a Large Pore Aluminophosphate Zeotype Prepared by Using 1,10-Phenanthrolines as Framework-Bound Templates

Journal Article (2020)
Author(s)

Abigail E. Watts (University of St Andrews)

Magdalena M. Lozinska (University of St Andrews)

Alexandra M.Z. Slawin (University of St Andrews)

Alvaro Mayoral (ShanghaiTech University, Universidad de Zaragoza)

Daniel M. Dawson (University of St Andrews)

Sharon E. Ashbrook (University of St Andrews)

Bela E. Bode (University of St Andrews)

A. Iulian Dugulan (TU Delft - RID/TS/Instrumenten groep)

Mervyn D. Shannon (Johnson Matthey Technology Center)

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Research Group
RID/TS/Instrumenten groep
DOI related publication
https://doi.org/10.1002/anie.202005558 Final published version
More Info
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Publication Year
2020
Language
English
Research Group
RID/TS/Instrumenten groep
Issue number
35
Volume number
59
Pages (from-to)
15186-15190
Downloads counter
297
Collections
Institutional Repository
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Abstract

An AlPO4 zeotype has been prepared using the aromatic diamine 1,10-phenanthroline and some of its methylated analogues as templates. In each case the two template N atoms bind to a specific framework Al site to expand its coordination to the unusual octahedral AlO4N2 environment. Furthermore, using this framework-bound template, Fe atoms can be included selectively at this site in the framework by direct synthesis, as confirmed by annular dark field scanning transmission electron microscopy and Rietveld refinement. Calcination removes the organic molecules to give large pore framework solids, with BET surface areas up to 540 m2 g−1 and two perpendicular sets of channels that intersect to give pore space connected by 12-ring openings along all crystallographic directions.