Abstract
Single-phased spinel-related Ti4+-substituted Li 0.5Fe2.5O4 has been synthesized by heating a mixture of hydrothermally prepared Ti4+-substituted α-Fe 2O3 and Li2CO3 at 850°C (12 h). This temperature is ca. 250-350°C lower than those at which the material is conventionally prepared by the ceramic techniques. X-ray diffraction was used to analyze the evolution of the formation process and, in conjunction with Mössbauer and magnetization measurements, to determine the cation distribution of the resulting ferrite. The results imply that the Ti 4+ ions substitute for Fe3+ ones at the octahedral (B) sites whilst the excess Li+ ions, required for balancing the charge in the spinel-related structure, replace Fe3+ ions at the tetrahedral (A) sites.
| Original language | English |
|---|---|
| Article number | 012131 |
| Journal | Journal of Physics: Conference Series |
| Volume | 217 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2010 |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
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Structural and magnetic characterization of Ti-substituted Li 0.5Fe2.5O4 prepared using hydrothermal and solid-state routes. / Widatallah, H. M.; Johnson, C.; Gismelseed, A.; Al-Rawas, A.; Elzain, M.; Yousif, A.
In: Journal of Physics: Conference Series, Vol. 217, No. 1, 012131, 2010.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Structural and magnetic characterization of Ti-substituted Li 0.5Fe2.5O4 prepared using hydrothermal and solid-state routes
AU - Widatallah, H. M.
AU - Johnson, C.
AU - Gismelseed, A.
AU - Al-Rawas, A.
AU - Elzain, M.
AU - Yousif, A.
PY - 2010
Y1 - 2010
N2 - Single-phased spinel-related Ti4+-substituted Li 0.5Fe2.5O4 has been synthesized by heating a mixture of hydrothermally prepared Ti4+-substituted α-Fe 2O3 and Li2CO3 at 850°C (12 h). This temperature is ca. 250-350°C lower than those at which the material is conventionally prepared by the ceramic techniques. X-ray diffraction was used to analyze the evolution of the formation process and, in conjunction with Mössbauer and magnetization measurements, to determine the cation distribution of the resulting ferrite. The results imply that the Ti 4+ ions substitute for Fe3+ ones at the octahedral (B) sites whilst the excess Li+ ions, required for balancing the charge in the spinel-related structure, replace Fe3+ ions at the tetrahedral (A) sites.
AB - Single-phased spinel-related Ti4+-substituted Li 0.5Fe2.5O4 has been synthesized by heating a mixture of hydrothermally prepared Ti4+-substituted α-Fe 2O3 and Li2CO3 at 850°C (12 h). This temperature is ca. 250-350°C lower than those at which the material is conventionally prepared by the ceramic techniques. X-ray diffraction was used to analyze the evolution of the formation process and, in conjunction with Mössbauer and magnetization measurements, to determine the cation distribution of the resulting ferrite. The results imply that the Ti 4+ ions substitute for Fe3+ ones at the octahedral (B) sites whilst the excess Li+ ions, required for balancing the charge in the spinel-related structure, replace Fe3+ ions at the tetrahedral (A) sites.
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U2 - 10.1088/1742-6596/217/1/012131
DO - 10.1088/1742-6596/217/1/012131
M3 - Article
VL - 217
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
IS - 1
M1 - 012131
ER -