Presence of Room Temperature Ferromagnetism in CO2+ Doped TiO2 Nanoparticles Synthesized through Shape Transformation
Нема приказа
Аутори
Kuljanin-Jakovljević, Jadranka Ž.Radoičić, Marija B.
Radetić, Tamara
Konstantinović, Zorica
Šaponjić, Zoran
Nedeljković, Jovan
Чланак у часопису
Метаподаци
Приказ свих података о документуАпстракт
New approach for synthesis of Co2+ doped TiO2 nanoparticles showing room temperature ferromagnetic behavior, through shape transformation of hydrothermally treated scrolled titania nanotubes in the presence of Co2+ ions is described. The XRD and ICP measurements demonstrated successful incorporation of 0.46 at % Co2+ ions in preserved anatase crystal structure of TiO2 nanoparticles, without presence of Co-oxide Clustering, metallic Co, or Various Co-Ti oxide species. HRTEM measurements revealed that majority of the nanoparticles have polygonal shapes with average dimension of similar to 6-10 nm. Obtained Value of 3.06 eV for band gap energy of Co2+ doped TiO2 nanoparticles explained altered optical properties of TiO2 matrix and indicates narrowing of the electronic properties in respect to the undoped anatase TiO2 nanomaterials. The Co2+ doped TiO2 nanocrystals enabled synthesis of optically transparent film that shows room temperature ferromagnetic ordering with a saturation magnetic ...moment of 0 25 mu B per Co atom The proposed explanation for room temperature ferromagnetic behavior is based oil the presence of critical amount of oxygen vacancies that mediate interaction between Co2+ spins trapped in the lattice Structure of titania nanoparticles with undercoordinated surface defect sites.
Извор:
Journal of Physical Chemistry. C, 2009, 113, 50, 21029-21033Финансирање / пројекти:
- Serbian Ministry of Science and Technological Development [142066], NCEM, Office of Science, Office of Basic Energy Sciences of the US Department of Energy [DE:-AC02-05CH11231], Spanish MEC f
DOI: 10.1021/jp905042k
ISSN: 1932-7447
WoS: 000272560400003
Scopus: 2-s2.0-73249136466
Колекције
Институција/група
VinčaTY - JOUR AU - Kuljanin-Jakovljević, Jadranka Ž. AU - Radoičić, Marija B. AU - Radetić, Tamara AU - Konstantinović, Zorica AU - Šaponjić, Zoran AU - Nedeljković, Jovan PY - 2009 UR - https://vinar.vin.bg.ac.rs/handle/123456789/3847 AB - New approach for synthesis of Co2+ doped TiO2 nanoparticles showing room temperature ferromagnetic behavior, through shape transformation of hydrothermally treated scrolled titania nanotubes in the presence of Co2+ ions is described. The XRD and ICP measurements demonstrated successful incorporation of 0.46 at % Co2+ ions in preserved anatase crystal structure of TiO2 nanoparticles, without presence of Co-oxide Clustering, metallic Co, or Various Co-Ti oxide species. HRTEM measurements revealed that majority of the nanoparticles have polygonal shapes with average dimension of similar to 6-10 nm. Obtained Value of 3.06 eV for band gap energy of Co2+ doped TiO2 nanoparticles explained altered optical properties of TiO2 matrix and indicates narrowing of the electronic properties in respect to the undoped anatase TiO2 nanomaterials. The Co2+ doped TiO2 nanocrystals enabled synthesis of optically transparent film that shows room temperature ferromagnetic ordering with a saturation magnetic moment of 0 25 mu B per Co atom The proposed explanation for room temperature ferromagnetic behavior is based oil the presence of critical amount of oxygen vacancies that mediate interaction between Co2+ spins trapped in the lattice Structure of titania nanoparticles with undercoordinated surface defect sites. T2 - Journal of Physical Chemistry. C T1 - Presence of Room Temperature Ferromagnetism in CO2+ Doped TiO2 Nanoparticles Synthesized through Shape Transformation VL - 113 IS - 50 SP - 21029 EP - 21033 DO - 10.1021/jp905042k ER -
@article{ author = "Kuljanin-Jakovljević, Jadranka Ž. and Radoičić, Marija B. and Radetić, Tamara and Konstantinović, Zorica and Šaponjić, Zoran and Nedeljković, Jovan", year = "2009", abstract = "New approach for synthesis of Co2+ doped TiO2 nanoparticles showing room temperature ferromagnetic behavior, through shape transformation of hydrothermally treated scrolled titania nanotubes in the presence of Co2+ ions is described. The XRD and ICP measurements demonstrated successful incorporation of 0.46 at % Co2+ ions in preserved anatase crystal structure of TiO2 nanoparticles, without presence of Co-oxide Clustering, metallic Co, or Various Co-Ti oxide species. HRTEM measurements revealed that majority of the nanoparticles have polygonal shapes with average dimension of similar to 6-10 nm. Obtained Value of 3.06 eV for band gap energy of Co2+ doped TiO2 nanoparticles explained altered optical properties of TiO2 matrix and indicates narrowing of the electronic properties in respect to the undoped anatase TiO2 nanomaterials. The Co2+ doped TiO2 nanocrystals enabled synthesis of optically transparent film that shows room temperature ferromagnetic ordering with a saturation magnetic moment of 0 25 mu B per Co atom The proposed explanation for room temperature ferromagnetic behavior is based oil the presence of critical amount of oxygen vacancies that mediate interaction between Co2+ spins trapped in the lattice Structure of titania nanoparticles with undercoordinated surface defect sites.", journal = "Journal of Physical Chemistry. C", title = "Presence of Room Temperature Ferromagnetism in CO2+ Doped TiO2 Nanoparticles Synthesized through Shape Transformation", volume = "113", number = "50", pages = "21029-21033", doi = "10.1021/jp905042k" }
Kuljanin-Jakovljević, J. Ž., Radoičić, M. B., Radetić, T., Konstantinović, Z., Šaponjić, Z.,& Nedeljković, J.. (2009). Presence of Room Temperature Ferromagnetism in CO2+ Doped TiO2 Nanoparticles Synthesized through Shape Transformation. in Journal of Physical Chemistry. C, 113(50), 21029-21033. https://doi.org/10.1021/jp905042k
Kuljanin-Jakovljević JŽ, Radoičić MB, Radetić T, Konstantinović Z, Šaponjić Z, Nedeljković J. Presence of Room Temperature Ferromagnetism in CO2+ Doped TiO2 Nanoparticles Synthesized through Shape Transformation. in Journal of Physical Chemistry. C. 2009;113(50):21029-21033. doi:10.1021/jp905042k .
Kuljanin-Jakovljević, Jadranka Ž., Radoičić, Marija B., Radetić, Tamara, Konstantinović, Zorica, Šaponjić, Zoran, Nedeljković, Jovan, "Presence of Room Temperature Ferromagnetism in CO2+ Doped TiO2 Nanoparticles Synthesized through Shape Transformation" in Journal of Physical Chemistry. C, 113, no. 50 (2009):21029-21033, https://doi.org/10.1021/jp905042k . .