Structural and Electrical Properties of Ti Doped alpha-Fe2O3

2013
Autori
Nikolić, M.V.Sekulić, D.L.
Nikolić, N.
Slankamenac, M.P.
Aleksić, O.S.
Danninger, H.
Halwax, E.
Pavlović, Vladimir

Nikolić, P.M.
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
In this work we have analyzed the effects of Ti doping on structural and electrical properties of alpha-Fe2O3. When the amount of added Ti (5 wt.% TiO2) was within the solubility degree and XRD, SEM and EDS analysis revealed a homogenous hematite structure, with lattice parameters a= 5.03719(3), c= 13.7484(1) slightly increased due to incorporation of Ti into the rhombohedral hematite lattice. Higher amounts of Ti (10 wt.% TiO2) resulted in the formation of pseudobrookite, besides hematite, confirmed by SEM and EDS analysis. Studies of electric properties in the temperature range 25-225oC at different frequencies (100-1Mz) showed that Ti doping improved electrical conductivity. Impedance analysis was performed using an equivalent circuit, showing one relaxation process and suggesting dominant grain boundary contribution.
Ključne reči:
X-ray diffraction / Scanning electron microscopy / Electric propertiesIzvor:
Science of Sintering, 2013, 45, 3, 281-292Izdavač:
- Međunarodni Institut za nauku o sinterovanju, Beograd
Finansiranje / projekti:
- Litijum-jon baterije i gorivne ćelije-istraživanje i razvoj (RS-45014)
- Razvoj metoda, senzora, i sistema za praćenje kvaliteta vode, vazduha i zemljišta (RS-43008)
DOI: 10.2298/SOS1303281N
ISSN: 0350-820X
WoS: 000339449200005
Scopus: 2-s2.0-84893417241
Institucija/grupa
Poljoprivredni fakultetTY - JOUR AU - Nikolić, M.V. AU - Sekulić, D.L. AU - Nikolić, N. AU - Slankamenac, M.P. AU - Aleksić, O.S. AU - Danninger, H. AU - Halwax, E. AU - Pavlović, Vladimir AU - Nikolić, P.M. PY - 2013 UR - http://aspace.agrif.bg.ac.rs/handle/123456789/3106 AB - In this work we have analyzed the effects of Ti doping on structural and electrical properties of alpha-Fe2O3. When the amount of added Ti (5 wt.% TiO2) was within the solubility degree and XRD, SEM and EDS analysis revealed a homogenous hematite structure, with lattice parameters a= 5.03719(3), c= 13.7484(1) slightly increased due to incorporation of Ti into the rhombohedral hematite lattice. Higher amounts of Ti (10 wt.% TiO2) resulted in the formation of pseudobrookite, besides hematite, confirmed by SEM and EDS analysis. Studies of electric properties in the temperature range 25-225oC at different frequencies (100-1Mz) showed that Ti doping improved electrical conductivity. Impedance analysis was performed using an equivalent circuit, showing one relaxation process and suggesting dominant grain boundary contribution. PB - Međunarodni Institut za nauku o sinterovanju, Beograd T2 - Science of Sintering T1 - Structural and Electrical Properties of Ti Doped alpha-Fe2O3 EP - 292 IS - 3 SP - 281 VL - 45 DO - 10.2298/SOS1303281N ER -
@article{ author = "Nikolić, M.V. and Sekulić, D.L. and Nikolić, N. and Slankamenac, M.P. and Aleksić, O.S. and Danninger, H. and Halwax, E. and Pavlović, Vladimir and Nikolić, P.M.", year = "2013", abstract = "In this work we have analyzed the effects of Ti doping on structural and electrical properties of alpha-Fe2O3. When the amount of added Ti (5 wt.% TiO2) was within the solubility degree and XRD, SEM and EDS analysis revealed a homogenous hematite structure, with lattice parameters a= 5.03719(3), c= 13.7484(1) slightly increased due to incorporation of Ti into the rhombohedral hematite lattice. Higher amounts of Ti (10 wt.% TiO2) resulted in the formation of pseudobrookite, besides hematite, confirmed by SEM and EDS analysis. Studies of electric properties in the temperature range 25-225oC at different frequencies (100-1Mz) showed that Ti doping improved electrical conductivity. Impedance analysis was performed using an equivalent circuit, showing one relaxation process and suggesting dominant grain boundary contribution.", publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd", journal = "Science of Sintering", title = "Structural and Electrical Properties of Ti Doped alpha-Fe2O3", pages = "292-281", number = "3", volume = "45", doi = "10.2298/SOS1303281N" }
Nikolić, M.V., Sekulić, D.L., Nikolić, N., Slankamenac, M.P., Aleksić, O.S., Danninger, H., Halwax, E., Pavlović, V.,& Nikolić, P.M.. (2013). Structural and Electrical Properties of Ti Doped alpha-Fe2O3. in Science of Sintering Međunarodni Institut za nauku o sinterovanju, Beograd., 45(3), 281-292. https://doi.org/10.2298/SOS1303281N
Nikolić M, Sekulić D, Nikolić N, Slankamenac M, Aleksić O, Danninger H, Halwax E, Pavlović V, Nikolić P. Structural and Electrical Properties of Ti Doped alpha-Fe2O3. in Science of Sintering. 2013;45(3):281-292. doi:10.2298/SOS1303281N .
Nikolić, M.V., Sekulić, D.L., Nikolić, N., Slankamenac, M.P., Aleksić, O.S., Danninger, H., Halwax, E., Pavlović, Vladimir, Nikolić, P.M., "Structural and Electrical Properties of Ti Doped alpha-Fe2O3" in Science of Sintering, 45, no. 3 (2013):281-292, https://doi.org/10.2298/SOS1303281N . .