Structural and electrical properties of Ti doped α-Fe2O3
2013
Autori
Nikolić, Maria VesnaSekulić, D. L.
Slankamenac, Miloš
Aleksić, Obrad S.
Danninger, H.
Halwax, E.
Pavlović, Vladimir B.
Nikolić, Pantelija 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 α-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) Å, c=13.7484(1) Å 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. [Projekat Ministarstva nauke Republike Srbije, br. III45014 i br. III43008]
Ključne reči:
X-ray diffraction / electrical properties / scanning electron microscopy / Ti doping / α-Fe2O3Izvor:
Science of Sintering, 2013, 45, 3, 281-292Izdavač:
- Belgrade : International Institute for the Science of Sintering
Finansiranje / projekti:
- Litijum-jon baterije i gorivne ćelije-istraživanje i razvoj (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45014)
- Razvoj metoda, senzora, i sistema za praćenje kvaliteta vode, vazduha i zemljišta (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-43008)
- Razvoj metoda, senzora, i sistema za praćenje kvaliteta vode, vazduha i zemljišta (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-43008)
DOI: 10.2298/SOS1303281N
ISSN: 0350-820X (Print); 1820-7413
WoS: 000339449200005
Scopus: 2-s2.0-84893417241
Institucija/grupa
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - JOUR AU - Nikolić, Maria Vesna AU - Sekulić, D. L. AU - Slankamenac, Miloš AU - Aleksić, Obrad S. AU - Danninger, H. AU - Halwax, E. AU - Pavlović, Vladimir B. AU - Nikolić, Pantelija M. PY - 2013 UR - https://dais.sanu.ac.rs/123456789/557 AB - In this work we have analyzed the effects of Ti doping on structural and electrical properties of α-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) Å, c=13.7484(1) Å 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. [Projekat Ministarstva nauke Republike Srbije, br. III45014 i br. III43008] PB - Belgrade : International Institute for the Science of Sintering T2 - Science of Sintering T1 - Structural and electrical properties of Ti doped α-Fe2O3 SP - 281 EP - 292 VL - 45 IS - 3 DO - 10.2298/SOS1303281N UR - https://hdl.handle.net/21.15107/rcub_dais_557 ER -
@article{ author = "Nikolić, Maria Vesna and Sekulić, D. L. and Slankamenac, Miloš and Aleksić, Obrad S. and Danninger, H. and Halwax, E. and Pavlović, Vladimir B. and Nikolić, Pantelija M.", year = "2013", abstract = "In this work we have analyzed the effects of Ti doping on structural and electrical properties of α-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) Å, c=13.7484(1) Å 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. [Projekat Ministarstva nauke Republike Srbije, br. III45014 i br. III43008]", publisher = "Belgrade : International Institute for the Science of Sintering", journal = "Science of Sintering", title = "Structural and electrical properties of Ti doped α-Fe2O3", pages = "281-292", volume = "45", number = "3", doi = "10.2298/SOS1303281N", url = "https://hdl.handle.net/21.15107/rcub_dais_557" }
Nikolić, M. V., Sekulić, D. L., Slankamenac, M., Aleksić, O. S., Danninger, H., Halwax, E., Pavlović, V. B.,& Nikolić, P. M.. (2013). Structural and electrical properties of Ti doped α-Fe2O3. in Science of Sintering Belgrade : International Institute for the Science of Sintering., 45(3), 281-292. https://doi.org/10.2298/SOS1303281N https://hdl.handle.net/21.15107/rcub_dais_557
Nikolić MV, Sekulić DL, Slankamenac M, Aleksić OS, Danninger H, Halwax E, Pavlović VB, Nikolić PM. Structural and electrical properties of Ti doped α-Fe2O3. in Science of Sintering. 2013;45(3):281-292. doi:10.2298/SOS1303281N https://hdl.handle.net/21.15107/rcub_dais_557 .
Nikolić, Maria Vesna, Sekulić, D. L., Slankamenac, Miloš, Aleksić, Obrad S., Danninger, H., Halwax, E., Pavlović, Vladimir B., Nikolić, Pantelija M., "Structural and electrical properties of Ti doped α-Fe2O3" in Science of Sintering, 45, no. 3 (2013):281-292, https://doi.org/10.2298/SOS1303281N ., https://hdl.handle.net/21.15107/rcub_dais_557 .