Structural and electrical properties of Ti doped α-Fe2O3
2013
Authors
Nikolić, Maria VesnaSekulić, D. L.
Slankamenac, Miloš
Aleksić, Obrad S.
Danninger, H.
Halwax, E.
Pavlović, Vladimir B.
Nikolić, Pantelija M.
Article (Published version)
Metadata
Show full item recordAbstract
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]
Keywords:
X-ray diffraction / electrical properties / scanning electron microscopy / Ti doping / α-Fe2O3Source:
Science of Sintering, 2013, 45, 3, 281-292Publisher:
- Belgrade : International Institute for the Science of Sintering
Funding / projects:
- Lithium-ion batteries and fuel cells - research and development (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45014)
- Development of the methods, sensors and systems for monitoring quality of water, air and soil (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-43008)
- Development of the methods, sensors and systems for monitoring quality of water, air and soil (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
Institution/Community
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 .