Please use this identifier to cite or link to this item:
https://dspace.ffh.bg.ac.rs/handle/123456789/837| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Radulović, Aleksandra | en_US |
| dc.contributor.author | Dondur, Vera | en_US |
| dc.contributor.author | Vulić, Predrag | en_US |
| dc.contributor.author | Miladinović, Zoran | en_US |
| dc.contributor.author | Ćirić-Marjanović, Gordana | en_US |
| dc.contributor.author | Dimitrijević, Radovan | en_US |
| dc.date.accessioned | 2022-12-15T17:18:21Z | - |
| dc.date.available | 2022-12-15T17:18:21Z | - |
| dc.date.issued | 2013-09-01 | - |
| dc.identifier.issn | 0022-3697 | en |
| dc.identifier.uri | https://dspace.ffh.bg.ac.rs/handle/123456789/837 | - |
| dc.description.abstract | In this work we investigated the conditions under which pure basic hexagonal nepheline phase is formed by the zeolite Na-LTA thermal transformation route. The influence of small variations in Na-LTA bulk stoichiometry on the rate and course of the thermal transformation process was examined. The starting materials were three Na-LTA samples with different Na2O: Al 2O3: SiO2 ratios: 0.99Na2O: 1.00Al2O3: 2.00 SiO2, 1.05Na2O: 1.06Al2O3: 2.00SiO2 and 1.05Na2O: 1.00Al2O3: 2.05SiO2. Upon heat treatment, the zeolite samples showed different conversion routes. At temperatures above 950 C all three Na-LTA samples transformed into nepheline-type polymorphs. While the Na-LTA sample with the composition close to ideal stoichiometry gave pure basic hexagonal nepheline, the Na-LTA samples containing sodium, aluminum and silica excess formed mixtures of basic hexagonal nepheline and monoclinic trinepheline. The synthesized nepheline-type polymorphs were investigated by X-ray powder diffraction, Raman and NMR spectroscopy. © 2013 Elsevier Ltd. | en |
| dc.relation.ispartof | Journal of Physics and Chemistry of Solids | en |
| dc.subject | A. Ceramics | en |
| dc.subject | C. Raman spectroscopy | en |
| dc.subject | C. X-ray diffraction | en |
| dc.subject | D. Nuclear magnetic resonance (NMR) | en |
| dc.subject | D. Phase transitions | en |
| dc.title | Routes of synthesis of nepheline-type polymorphs: An influence of Na-LTA bulk composition on its thermal transformations | en_US |
| dc.type | Article | en_US |
| dc.identifier.doi | 10.1016/j.jpcs.2013.03.019 | - |
| dc.identifier.scopus | 2-s2.0-84878305075 | - |
| dc.identifier.url | https://api.elsevier.com/content/abstract/scopus_id/84878305075 | - |
| dc.relation.firstpage | 1212 | en |
| dc.relation.lastpage | 1220 | en |
| dc.relation.issue | 9 | en |
| dc.relation.volume | 74 | en |
| item.fulltext | No Fulltext | - |
| item.cerifentitytype | Publications | - |
| item.openairetype | Article | - |
| item.grantfulltext | none | - |
| item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
| crisitem.author.orcid | 0000-0003-3507-3966 | - |
| crisitem.author.orcid | 0000-0002-1050-7003 | - |
| Appears in Collections: | Journal Article | |
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