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 - Conference article
AN - SCOPUS:77954669385
SN - 1742-6588
VL - 217
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 1
M1 - 012131
T2 - International Conference on the Applications of the Mossbauer Effect, ICAME 2009
Y2 - 19 July 2009 through 24 July 2009
ER -