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Thermal investigations of some AlPO and MeAPO materials prepared in the presence of HF

Authorized Users Only
1997
Authors
Rajić, Nevenka
Gabrovsek, R
Ristić, A
Kaučič, Venčeslav
Article (Published version)
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Abstract
Hydrothermal synthesis of chabazite-like AlPO4 in a fluoride medium, using piperidine as the structure directing agent, is also successful in the preparation of transition-metal-modified AlPO products. The transition metal (Co, Mn, and Ni) has no influence on the triclinic deformation of the chabazite framework, formed by an interaction of fluoride ions with the AlPO framework. Upon calcination, successive destruction of piperidine and fluoride bridges occurs. The calcined chabazite-like products exhibit a particular sensitivity for humidity resulting in a new triclinic deformation of the chabazite framework The deformation is completely reversible and can be removed by dehydration. The transition-metal incorporation exerts an influence on the dehydration process.
Keywords:
aluminophosphate / chabazite-like materials / MeAPO-34 / thermal analysis / TG/DTG-DSC / transition-metal incorporation
Source:
Thermochimica Acta, 1997, 306, 1-2, 31-36
Publisher:
  • Elsevier, Amsterdam

DOI: 10.1016/S0040-6031(97)00292-X

ISSN: 0040-6031

WoS: 000071274500005

Scopus: 2-s2.0-0001945027
[ Google Scholar ]
19
17
URI
http://TechnoRep.tmf.bg.ac.rs/handle/123456789/150
Collections
  • Radovi istraživača / Researchers’ publications (TMF)
Institution/Community
Tehnološko-metalurški fakultet
TY  - JOUR
AU  - Rajić, Nevenka
AU  - Gabrovsek, R
AU  - Ristić, A
AU  - Kaučič, Venčeslav
PY  - 1997
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/150
AB  - Hydrothermal synthesis of chabazite-like AlPO4 in a fluoride medium, using piperidine as the structure directing agent, is also successful in the preparation of transition-metal-modified AlPO products. The transition metal (Co, Mn, and Ni) has no influence on the triclinic deformation of the chabazite framework, formed by an interaction of fluoride ions with the AlPO framework. Upon calcination, successive destruction of piperidine and fluoride bridges occurs. The calcined chabazite-like products exhibit a particular sensitivity for humidity resulting in a new triclinic deformation of the chabazite framework The deformation is completely reversible and can be removed by dehydration. The transition-metal incorporation exerts an influence on the dehydration process.
PB  - Elsevier, Amsterdam
T2  - Thermochimica Acta
T1  - Thermal investigations of some AlPO and MeAPO materials prepared in the presence of HF
EP  - 36
IS  - 1-2
SP  - 31
VL  - 306
DO  - 10.1016/S0040-6031(97)00292-X
ER  - 
@article{
author = "Rajić, Nevenka and Gabrovsek, R and Ristić, A and Kaučič, Venčeslav",
year = "1997",
abstract = "Hydrothermal synthesis of chabazite-like AlPO4 in a fluoride medium, using piperidine as the structure directing agent, is also successful in the preparation of transition-metal-modified AlPO products. The transition metal (Co, Mn, and Ni) has no influence on the triclinic deformation of the chabazite framework, formed by an interaction of fluoride ions with the AlPO framework. Upon calcination, successive destruction of piperidine and fluoride bridges occurs. The calcined chabazite-like products exhibit a particular sensitivity for humidity resulting in a new triclinic deformation of the chabazite framework The deformation is completely reversible and can be removed by dehydration. The transition-metal incorporation exerts an influence on the dehydration process.",
publisher = "Elsevier, Amsterdam",
journal = "Thermochimica Acta",
title = "Thermal investigations of some AlPO and MeAPO materials prepared in the presence of HF",
pages = "36-31",
number = "1-2",
volume = "306",
doi = "10.1016/S0040-6031(97)00292-X"
}
Rajić, N., Gabrovsek, R., Ristić, A.,& Kaučič, V.. (1997). Thermal investigations of some AlPO and MeAPO materials prepared in the presence of HF. in Thermochimica Acta
Elsevier, Amsterdam., 306(1-2), 31-36.
https://doi.org/10.1016/S0040-6031(97)00292-X
Rajić N, Gabrovsek R, Ristić A, Kaučič V. Thermal investigations of some AlPO and MeAPO materials prepared in the presence of HF. in Thermochimica Acta. 1997;306(1-2):31-36.
doi:10.1016/S0040-6031(97)00292-X .
Rajić, Nevenka, Gabrovsek, R, Ristić, A, Kaučič, Venčeslav, "Thermal investigations of some AlPO and MeAPO materials prepared in the presence of HF" in Thermochimica Acta, 306, no. 1-2 (1997):31-36,
https://doi.org/10.1016/S0040-6031(97)00292-X . .

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