dc.creator | Rajić, Nevenka | |
dc.creator | Stojaković, Đorđe | |
dc.creator | Jevtić, Sanja | |
dc.creator | Zabukovec-Logar, Nataša | |
dc.creator | Mali, Gregor | |
dc.creator | Kaučič, Venčeslav | |
dc.date.accessioned | 2021-03-10T11:19:00Z | |
dc.date.available | 2021-03-10T11:19:00Z | |
dc.date.issued | 2010 | |
dc.identifier.issn | 1388-6150 | |
dc.identifier.uri | http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1638 | |
dc.description.abstract | An open-framework aluminophosphate analog of the fluorogallophosphate structure-type ULM-3 was obtained by hydrothermal crystallization of an aqueous aluminum phosphate suspension in the presence of 3-methylpropylamine (MAPA) and hydrofluoric acid. The open-framework fluorinated aluminophosphate structure was confirmed by Rietveld analysis and the (27)Al, (31)P, and (19)F MAS NMR spectroscopy. The MAPA, located in the ten-membered ring channels, is doubly protonated to balance the negative charge of the Al(3)P(3)O(12)F(2) (2-) framework. Thermogravimetric analysis data have been used to study kinetics of the thermal decomposition of MAPA. The decomposition was found to be a complex process, its activation energy varied from 177 to 259 kJ mol(-1). The relatively high E values are explained by the fact that the MAPA cations are bound to the anionic framework both by electrostatic forces as well as strong N-HaEuro broken vertical bar O hydrogen bonds. The strength of the interactions is indirectly confirmed by the in situ high temperature X-ray diffraction analysis which shows that the MAPA decomposition leads to a phase transformation of the open-framework structure to the dense trydimite phase. | en |
dc.publisher | Springer, Dordrecht | |
dc.rights | restrictedAccess | |
dc.source | Journal of Thermal Analysis and Calorimetry | |
dc.subject | Thermal degradation | en |
dc.subject | Kinetics | en |
dc.subject | Aluminophosphate | en |
dc.subject | Porous | en |
dc.subject | Open-framework | en |
dc.subject | ULM-3 | en |
dc.title | On the thermal degradation of 3-methylaminopropylamine captured inside the aluminum phosphate analog of ULM-3 | en |
dc.type | article | |
dc.rights.license | ARR | |
dc.citation.epage | 924 | |
dc.citation.issue | 3 | |
dc.citation.other | 101(3): 919-924 | |
dc.citation.rank | M22 | |
dc.citation.spage | 919 | |
dc.citation.volume | 101 | |
dc.identifier.doi | 10.1007/s10973-009-0504-7 | |
dc.identifier.scopus | 2-s2.0-84755161257 | |
dc.identifier.wos | 000281256500016 | |
dc.type.version | publishedVersion | |