New FeVTaO6 compound-synthesis, structure and selected properties
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62690094%3A18470%2F24%3A50021374" target="_blank" >RIV/62690094:18470/24:50021374 - isvavai.cz</a>
Result on the web
<a href="https://link.springer.com/article/10.1007/s10853-023-09168-x" target="_blank" >https://link.springer.com/article/10.1007/s10853-023-09168-x</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10853-023-09168-x" target="_blank" >10.1007/s10853-023-09168-x</a>
Alternative languages
Result language
angličtina
Original language name
New FeVTaO6 compound-synthesis, structure and selected properties
Original language description
A new ceramic compound of the chemical formula FeVTaO6 was obtained in polycrystalline form, as a result of a high-temperature reaction between Fe2O3, Ta2O5 and VO2 mixed at the molar ratio 1:1:2 as well as in the reaction of equimolar mixture of FeTaO4 with VO2. The synthesis of this new compound has also been carried out by mechanochemical method realized by high-energy ball milling of some mixture of reactants. FeVTaO6, in both cases, was obtained under an atmosphere of deoxygenated argon. The new compound was characterized by XRD, DTA-TG, IR, SEM/EDX, TEM, XRF and UV-vis-DRS methods. Using X-ray powder diffraction, the lattice parameters of the unit cell and the parameters of the positioning of atoms (Rietveld analysis) were determined, and grain sizes were obtained on the basis of diffraction line broadening. The results showed that FeVTaO6 crystallizes in the tetragonal system with rutile-type structure. As shown in the DTA results, regardless of the synthesis method, FeVTaO6 is stable in argon atmosphere up to similar to 1225 degrees C and in air up to similar to 925 degrees C. Based on the UV-Vis-DR spectra, it was also established that the obtained compound is a semiconductor. The energy gap value determined for the compound obtained by the solid-state method is Eg similar to 1.75 eV, and for the compound obtained by the mechanochemical method Eg similar to 2.10 eV. [GRAPHICS] .
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20501 - Materials engineering
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
JOURNAL OF MATERIALS SCIENCE
ISSN
0022-2461
e-ISSN
1573-4803
Volume of the periodical
59
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
13
Pages from-to
382-394
UT code for WoS article
001126015200007
EID of the result in the Scopus database
2-s2.0-85179652351