Clemens, Oliver (2015)
Structural characterization of a new vacancy ordered perovskite modification found for Ba3Fe3O7F (BaFeO2.333F0.333): Towards understanding of vacancy ordering for different perovskite-type ferrites.
In: Journal of Solid State Chemistry, 225
doi: 10.1016/j.jssc.2014.12.027
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The new vacancy ordered perovskite-type compound Ba3Fe3O7F (BaFeO2.33F0.33) was prepared by topochemical low-temperature fluorination of Ba2Fe2O5 (BaFeO2.5) using stoichiometric amounts of polyvinylidene difluoride (PVDF). The vacancy order was found to be unique so far for perovskite compounds, and the connectivity pattern can be explained by the formula Ba-3(FeX6/2) (FeX5/2)(FeX3/2X1/1), with X= O/F. Mossbauer measurements were used to confirm the structural analysis and agree with the presence of Fe3+ in the above mentioned coordination environments. Group-subgroup relationships were used to build a starting model for the structure solution and to understand the relationship to the cubic perovskite structure. Furthermore, a comparison of a variety of vacancy-ordered iron-containing perovskite-type structures is given, highlighting the factors which favour one structure type over the other depending on the composition. (C) 2015 Elsevier Inc. All rights reserved.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2015 |
| Autor(en): | Clemens, Oliver |
| Art des Eintrags: | Bibliographie |
| Titel: | Structural characterization of a new vacancy ordered perovskite modification found for Ba3Fe3O7F (BaFeO2.333F0.333): Towards understanding of vacancy ordering for different perovskite-type ferrites |
| Sprache: | Englisch |
| Publikationsjahr: | Mai 2015 |
| Verlag: | ACADEMIC PRESS INC ELSEVIER SCIENCE, USA |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Solid State Chemistry |
| Jahrgang/Volume einer Zeitschrift: | 225 |
| DOI: | 10.1016/j.jssc.2014.12.027 |
| Kurzbeschreibung (Abstract): | The new vacancy ordered perovskite-type compound Ba3Fe3O7F (BaFeO2.33F0.33) was prepared by topochemical low-temperature fluorination of Ba2Fe2O5 (BaFeO2.5) using stoichiometric amounts of polyvinylidene difluoride (PVDF). The vacancy order was found to be unique so far for perovskite compounds, and the connectivity pattern can be explained by the formula Ba-3(FeX6/2) (FeX5/2)(FeX3/2X1/1), with X= O/F. Mossbauer measurements were used to confirm the structural analysis and agree with the presence of Fe3+ in the above mentioned coordination environments. Group-subgroup relationships were used to build a starting model for the structure solution and to understand the relationship to the cubic perovskite structure. Furthermore, a comparison of a variety of vacancy-ordered iron-containing perovskite-type structures is given, highlighting the factors which favour one structure type over the other depending on the composition. (C) 2015 Elsevier Inc. All rights reserved. |
| Freie Schlagworte: | Fluorination, Perovskites Oxyfluorides, Vacancy order, Ba3Fe3O7F, PVDF |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Materialdesign durch Synthese 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Gemeinschaftslabor Nanomaterialien |
| Hinterlegungsdatum: | 10 Feb 2016 09:38 |
| Letzte Änderung: | 12 Apr 2017 12:20 |
| PPN: | |
| Export: | |
| Suche nach Titel in: | TUfind oder in Google |
 |
Frage zum Eintrag |
Optionen (nur für Redakteure)
 |
Redaktionelle Details anzeigen |
Drucken
Impressum