---
_id: '63924'
abstract:
- lang: eng
  text: In a systematic study on the synthesis of aluminophosphates (AlPOs) under
    ionothermal conditions, initially using 1-butyl-3-methylimidazolium bromide ([C4mim]Br)
    as ionic liquid solvent and structure-directing agent, the effect of the reaction
    conditions (i.e. molar P/Al, F/Al and ionic liquid/Al ratios, alternative fluoride
    sources, influence of the ionic liquid’s cation or anion, temperature, reaction
    time) on the framework type was studied in detail. In [C4mim]Br, the formation
    of the more thermodynamically stable AEL framework type proceeds via AFI. The
    framework type can be changed by choosing another anion or cation of the ionic
    liquid. Hence, the successful ionothermal synthesis of the AFI framework AlPO
    is reported by using either N-ethylpyridinium bromide ([C2py]Br) or 1-butyl-3-methylimidazolium
    chloride ([C4mim]Cl). The mineraliser [Me4N]F, rather than HF, has been used for
    the first time as an alternative fluoride source in ionothermal synthesis, which
    can also affect the framework type. Hence, a very efficient synthesis of the LTA
    framework type is reported in [C4mim]Br using [Me4N]F. Ab initio molecular dynamics
    (AIMD) studies showed that the anion bridges between the aluminium atoms of the
    framework and the cation. The interaction is more favoured in the presence of
    the bromide than the chloride, which may be a clue to the question why the AEL
    framework is not formed in the chloride-based ionic liquid. This study opens several
    routes to pursue in the future as numerous ionic liquids are available which can
    be used in ionothermal synthesis.
author:
- first_name: Muhammad Mohsin
  full_name: Azim, Muhammad Mohsin
  last_name: Azim
- first_name: Alfonso
  full_name: Pensado, Alfonso
  last_name: Pensado
- first_name: Barbara
  full_name: Kirchner, Barbara
  last_name: Kirchner
- first_name: Torsten
  full_name: Gutmann, Torsten
  id: '118165'
  last_name: Gutmann
- first_name: Pedro B.
  full_name: Groszewicz, Pedro B.
  last_name: Groszewicz
- first_name: Gerd
  full_name: Buntkowsky, Gerd
  last_name: Buntkowsky
- first_name: Annegret
  full_name: Stark, Annegret
  last_name: Stark
citation:
  ama: 'Azim MM, Pensado A, Kirchner B, et al. Ionothermal synthesis of crystalline
    microporous aluminophosphates: Systematic study on the conditions affecting the
    framework type. <i>Microporous and Mesoporous Materials</i>. 2018;266:204–213.
    doi:<a href="https://doi.org/10.1016/j.micromeso.2018.02.053">10.1016/j.micromeso.2018.02.053</a>'
  apa: 'Azim, M. M., Pensado, A., Kirchner, B., Gutmann, T., Groszewicz, P. B., Buntkowsky,
    G., &#38; Stark, A. (2018). Ionothermal synthesis of crystalline microporous aluminophosphates:
    Systematic study on the conditions affecting the framework type. <i>Microporous
    and Mesoporous Materials</i>, <i>266</i>, 204–213. <a href="https://doi.org/10.1016/j.micromeso.2018.02.053">https://doi.org/10.1016/j.micromeso.2018.02.053</a>'
  bibtex: '@article{Azim_Pensado_Kirchner_Gutmann_Groszewicz_Buntkowsky_Stark_2018,
    title={Ionothermal synthesis of crystalline microporous aluminophosphates: Systematic
    study on the conditions affecting the framework type}, volume={266}, DOI={<a href="https://doi.org/10.1016/j.micromeso.2018.02.053">10.1016/j.micromeso.2018.02.053</a>},
    journal={Microporous and Mesoporous Materials}, author={Azim, Muhammad Mohsin
    and Pensado, Alfonso and Kirchner, Barbara and Gutmann, Torsten and Groszewicz,
    Pedro B. and Buntkowsky, Gerd and Stark, Annegret}, year={2018}, pages={204–213}
    }'
  chicago: 'Azim, Muhammad Mohsin, Alfonso Pensado, Barbara Kirchner, Torsten Gutmann,
    Pedro B. Groszewicz, Gerd Buntkowsky, and Annegret Stark. “Ionothermal Synthesis
    of Crystalline Microporous Aluminophosphates: Systematic Study on the Conditions
    Affecting the Framework Type.” <i>Microporous and Mesoporous Materials</i> 266
    (2018): 204–213. <a href="https://doi.org/10.1016/j.micromeso.2018.02.053">https://doi.org/10.1016/j.micromeso.2018.02.053</a>.'
  ieee: 'M. M. Azim <i>et al.</i>, “Ionothermal synthesis of crystalline microporous
    aluminophosphates: Systematic study on the conditions affecting the framework
    type,” <i>Microporous and Mesoporous Materials</i>, vol. 266, pp. 204–213, 2018,
    doi: <a href="https://doi.org/10.1016/j.micromeso.2018.02.053">10.1016/j.micromeso.2018.02.053</a>.'
  mla: 'Azim, Muhammad Mohsin, et al. “Ionothermal Synthesis of Crystalline Microporous
    Aluminophosphates: Systematic Study on the Conditions Affecting the Framework
    Type.” <i>Microporous and Mesoporous Materials</i>, vol. 266, 2018, pp. 204–213,
    doi:<a href="https://doi.org/10.1016/j.micromeso.2018.02.053">10.1016/j.micromeso.2018.02.053</a>.'
  short: M.M. Azim, A. Pensado, B. Kirchner, T. Gutmann, P.B. Groszewicz, G. Buntkowsky,
    A. Stark, Microporous and Mesoporous Materials 266 (2018) 204–213.
date_created: 2026-02-07T08:58:23Z
date_updated: 2026-02-17T16:19:17Z
doi: 10.1016/j.micromeso.2018.02.053
extern: '1'
intvolume: '       266'
keyword:
- Aluminophosphates
- Ionic liquids
- Ionothermal synthesis
- Microporous materials
- Zeolite analogous
language:
- iso: eng
page: 204–213
publication: Microporous and Mesoporous Materials
status: public
title: 'Ionothermal synthesis of crystalline microporous aluminophosphates: Systematic
  study on the conditions affecting the framework type'
type: journal_article
user_id: '100715'
volume: 266
year: '2018'
...