Details
| Original language | English |
|---|---|
| Pages (from-to) | 107-110 |
| Number of pages | 4 |
| Journal | Acta Montanistica Slovaca |
| Volume | 19 |
| Issue number | 3 |
| Publication status | Published - 2014 |
Abstract
Fe2+-, Fe3+-, and Sn4+-based complex oxides, namely, Fe2GeO4, Ca Fe2O4 and Ca2SnO4 nanopowders were prepared via single -step mechanosynthesis performed at room temperature. The mechanically induced formation of a nanooxide product phase was followed by XRD,57Fe Mössbauer spectroscopy, and NMR. It is demonstrated that the mechanosynthesis of the complex oxide can proceed very rapidly (up to 4 h). This is i n a strong c ontrast to the conventio nal solid-state synthes is of the com plex oxides, which req uires prol onged e xposure a t considerably elevated temperatures. It was revealed that the main structural features of the mechanosynthesized oxides a re nonequilibrium cation distribution and distorted oxygen polyhedra.
Keywords
- Mechanochemistry, Mechanosynthesis, Mössbauer spectroscopy, Nanooxide, NMR, XRD
ASJC Scopus subject areas
- Earth and Planetary Sciences(all)
- Geotechnical Engineering and Engineering Geology
- Earth and Planetary Sciences(all)
- Geology
- Earth and Planetary Sciences(all)
- Geochemistry and Petrology
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In: Acta Montanistica Slovaca, Vol. 19, No. 3, 2014, p. 107-110.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - One-step mechanosynthesis of nanocrystalline oxides
AU - Šepelák, Vladimir
AU - Heitjans, Paul
AU - Becker, Klaus Dieter
N1 - Publisher Copyright: © Technical University of Kosice. All rights reserved.
PY - 2014
Y1 - 2014
N2 - Fe2+-, Fe3+-, and Sn4+-based complex oxides, namely, Fe2GeO4, Ca Fe2O4 and Ca2SnO4 nanopowders were prepared via single -step mechanosynthesis performed at room temperature. The mechanically induced formation of a nanooxide product phase was followed by XRD,57Fe Mössbauer spectroscopy, and NMR. It is demonstrated that the mechanosynthesis of the complex oxide can proceed very rapidly (up to 4 h). This is i n a strong c ontrast to the conventio nal solid-state synthes is of the com plex oxides, which req uires prol onged e xposure a t considerably elevated temperatures. It was revealed that the main structural features of the mechanosynthesized oxides a re nonequilibrium cation distribution and distorted oxygen polyhedra.
AB - Fe2+-, Fe3+-, and Sn4+-based complex oxides, namely, Fe2GeO4, Ca Fe2O4 and Ca2SnO4 nanopowders were prepared via single -step mechanosynthesis performed at room temperature. The mechanically induced formation of a nanooxide product phase was followed by XRD,57Fe Mössbauer spectroscopy, and NMR. It is demonstrated that the mechanosynthesis of the complex oxide can proceed very rapidly (up to 4 h). This is i n a strong c ontrast to the conventio nal solid-state synthes is of the com plex oxides, which req uires prol onged e xposure a t considerably elevated temperatures. It was revealed that the main structural features of the mechanosynthesized oxides a re nonequilibrium cation distribution and distorted oxygen polyhedra.
KW - Mechanochemistry
KW - Mechanosynthesis
KW - Mössbauer spectroscopy
KW - Nanooxide
KW - NMR
KW - XRD
UR - http://www.scopus.com/inward/record.url?scp=84922714380&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:84922714380
VL - 19
SP - 107
EP - 110
JO - Acta Montanistica Slovaca
JF - Acta Montanistica Slovaca
SN - 1335-1788
IS - 3
ER -