Solid state synthesis of extra phase-pure Li4Ti5O12 spinel
Апстракт
Extra phase-pure Li4Ti5O12 spinel with particle sizes less than 500 nm was synthesized by solid state reaction of mechanochemicaly activated mixture of nano anatase and Li2CO3 for a very short annealing time, 4 h at 800°C. Structural and microstructural properties, the mechanism of solid state reaction between anatase and Li2CO3 as well as thermal stability of prepared spinel were investigated using XRPD, SEM and TG/DSC analysis. The mechanism of reaction implies decomposition of Li2CO3 below 250ºC, formation of monoclinic Li2TiO3 as intermediate product between 400 and 600°C and its transformation to Li4Ti5O12 between 600-800ºC. The spinel structure is stable up to 1000ºC when it is decomposed due to Li2O evaporation.
Кључне речи:
X-ray diffraction / mechanism / thermal stability / Li4Ti5O12 / phase-pureИзвор:
Science of Sintering, 2011, 43, 3, 343-351Издавач:
- Belgrade : International Institute for the Science of Sintering
Финансирање / пројекти:
- 0-3D наноструктуре за примену у електроници и обновљивим изворима енергије: синтеза, карактеризација и процесирање (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45007)
DOI: 10.2298/SOS1103343V
ISSN: 1820-7413 (Online); 0350-820X
WoS: 000305094400011
Scopus: 2-s2.0-84857180016
Колекције
Институција/група
Inovacioni centarTY - JOUR AU - Veljković, Ivana AU - Poleti, Dejan AU - Karanović, Ljiljana AU - Zdujić, Miodrag AU - Branković, Goran PY - 2011 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5656 AB - Extra phase-pure Li4Ti5O12 spinel with particle sizes less than 500 nm was synthesized by solid state reaction of mechanochemicaly activated mixture of nano anatase and Li2CO3 for a very short annealing time, 4 h at 800°C. Structural and microstructural properties, the mechanism of solid state reaction between anatase and Li2CO3 as well as thermal stability of prepared spinel were investigated using XRPD, SEM and TG/DSC analysis. The mechanism of reaction implies decomposition of Li2CO3 below 250ºC, formation of monoclinic Li2TiO3 as intermediate product between 400 and 600°C and its transformation to Li4Ti5O12 between 600-800ºC. The spinel structure is stable up to 1000ºC when it is decomposed due to Li2O evaporation. PB - Belgrade : International Institute for the Science of Sintering T2 - Science of Sintering T1 - Solid state synthesis of extra phase-pure Li4Ti5O12 spinel EP - 351 IS - 3 SP - 343 VL - 43 DO - 10.2298/SOS1103343V UR - https://hdl.handle.net/21.15107/rcub_dais_199 ER -
@article{ author = "Veljković, Ivana and Poleti, Dejan and Karanović, Ljiljana and Zdujić, Miodrag and Branković, Goran", year = "2011", abstract = "Extra phase-pure Li4Ti5O12 spinel with particle sizes less than 500 nm was synthesized by solid state reaction of mechanochemicaly activated mixture of nano anatase and Li2CO3 for a very short annealing time, 4 h at 800°C. Structural and microstructural properties, the mechanism of solid state reaction between anatase and Li2CO3 as well as thermal stability of prepared spinel were investigated using XRPD, SEM and TG/DSC analysis. The mechanism of reaction implies decomposition of Li2CO3 below 250ºC, formation of monoclinic Li2TiO3 as intermediate product between 400 and 600°C and its transformation to Li4Ti5O12 between 600-800ºC. The spinel structure is stable up to 1000ºC when it is decomposed due to Li2O evaporation.", publisher = "Belgrade : International Institute for the Science of Sintering", journal = "Science of Sintering", title = "Solid state synthesis of extra phase-pure Li4Ti5O12 spinel", pages = "351-343", number = "3", volume = "43", doi = "10.2298/SOS1103343V", url = "https://hdl.handle.net/21.15107/rcub_dais_199" }
Veljković, I., Poleti, D., Karanović, L., Zdujić, M.,& Branković, G.. (2011). Solid state synthesis of extra phase-pure Li4Ti5O12 spinel. in Science of Sintering Belgrade : International Institute for the Science of Sintering., 43(3), 343-351. https://doi.org/10.2298/SOS1103343V https://hdl.handle.net/21.15107/rcub_dais_199
Veljković I, Poleti D, Karanović L, Zdujić M, Branković G. Solid state synthesis of extra phase-pure Li4Ti5O12 spinel. in Science of Sintering. 2011;43(3):343-351. doi:10.2298/SOS1103343V https://hdl.handle.net/21.15107/rcub_dais_199 .
Veljković, Ivana, Poleti, Dejan, Karanović, Ljiljana, Zdujić, Miodrag, Branković, Goran, "Solid state synthesis of extra phase-pure Li4Ti5O12 spinel" in Science of Sintering, 43, no. 3 (2011):343-351, https://doi.org/10.2298/SOS1103343V ., https://hdl.handle.net/21.15107/rcub_dais_199 .