Republic of Slovenia, Republic of Serbia [651-03-1251/2012-09/05]

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Republic of Slovenia, Republic of Serbia [651-03-1251/2012-09/05]

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Publications

Structural study of monoclinic Li2FeSiO4 by X-ray diffraction and Mossbauer spectroscopy

Jugović, Dragana; Milović, Miloš; Ivanovski, Valentin N.; Avdeev, Max; Dominko, Robert; Jokić, Bojan M.; Uskoković, Dragan

(2014)

TY  - JOUR
AU  - Jugović, Dragana
AU  - Milović, Miloš
AU  - Ivanovski, Valentin N.
AU  - Avdeev, Max
AU  - Dominko, Robert
AU  - Jokić, Bojan M.
AU  - Uskoković, Dragan
PY  - 2014
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/6045
AB  - A composite powder Li2FeSiO4/C is synthesized through a solid state reaction at 750 C. The Rietveld crystal structure refinement is done in the monoclinic P2(1)/n space group. It is found that the crystal structure is prone to antisite defect where small part of iron ion occupies exclusively Li(2) crystallographic position, of two different lithium tetrahedral positions (Li(1) and Li(2)). This finding is also confirmed by Mossbauer spectroscopy study: the sextet evidenced in the Mossbauer spectrum is assigned to the iron ions positioned at the Li(2) sites. A bond-valence energy landscape calculation is used to predict the conduction pathways of lithium ions. The calculations suggest that Li conductivity is two-dimensional in the (101) plane. Upon galvanostatic cyclings the structure starts to rearrange to inverse,311 polymorph. (C) 2014 Elsevier B.V. All rights reserved.
T2  - Journal of Power Sources
T1  - Structural study of monoclinic Li2FeSiO4 by X-ray diffraction and Mossbauer spectroscopy
VL  - 265
SP  - 75
EP  - 80
DO  - 10.1016/j.jpowsour.2014.04.121
ER  - 
@article{
author = "Jugović, Dragana and Milović, Miloš and Ivanovski, Valentin N. and Avdeev, Max and Dominko, Robert and Jokić, Bojan M. and Uskoković, Dragan",
year = "2014",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/6045",
abstract = "A composite powder Li2FeSiO4/C is synthesized through a solid state reaction at 750 C. The Rietveld crystal structure refinement is done in the monoclinic P2(1)/n space group. It is found that the crystal structure is prone to antisite defect where small part of iron ion occupies exclusively Li(2) crystallographic position, of two different lithium tetrahedral positions (Li(1) and Li(2)). This finding is also confirmed by Mossbauer spectroscopy study: the sextet evidenced in the Mossbauer spectrum is assigned to the iron ions positioned at the Li(2) sites. A bond-valence energy landscape calculation is used to predict the conduction pathways of lithium ions. The calculations suggest that Li conductivity is two-dimensional in the (101) plane. Upon galvanostatic cyclings the structure starts to rearrange to inverse,311 polymorph. (C) 2014 Elsevier B.V. All rights reserved.",
journal = "Journal of Power Sources",
title = "Structural study of monoclinic Li2FeSiO4 by X-ray diffraction and Mossbauer spectroscopy",
volume = "265",
pages = "75-80",
doi = "10.1016/j.jpowsour.2014.04.121"
}
Jugović, D., Milović, M., Ivanovski, V. N., Avdeev, M., Dominko, R., Jokić, B. M.,& Uskoković, D. (2014). Structural study of monoclinic Li2FeSiO4 by X-ray diffraction and Mossbauer spectroscopy.
Journal of Power Sources, 265, 75-80.
https://doi.org/10.1016/j.jpowsour.2014.04.121
Jugović D, Milović M, Ivanovski VN, Avdeev M, Dominko R, Jokić BM, Uskoković D. Structural study of monoclinic Li2FeSiO4 by X-ray diffraction and Mossbauer spectroscopy. Journal of Power Sources. 2014;265:75-80
Jugović Dragana, Milović Miloš, Ivanovski Valentin N., Avdeev Max, Dominko Robert, Jokić Bojan M., Uskoković Dragan, "Structural study of monoclinic Li2FeSiO4 by X-ray diffraction and Mossbauer spectroscopy" Journal of Power Sources, 265 (2014):75-80,
https://doi.org/10.1016/j.jpowsour.2014.04.121 .
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