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Dominko, Robert

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  • Dominko, Robert (6)
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Author's Bibliography

The use of methylcellulose for the synthesis of Li2FeSiO4/C composites

Milović, Miloš; Jugović, Dragana; Mitrić, Miodrag; Dominko, Robert; Stojković Simatović, Ivana; Jokić, Bojan; Uskoković, Dragan

(Springer, 2016)

TY  - JOUR
AU  - Milović, Miloš
AU  - Jugović, Dragana
AU  - Mitrić, Miodrag
AU  - Dominko, Robert
AU  - Stojković Simatović, Ivana
AU  - Jokić, Bojan
AU  - Uskoković, Dragan
PY  - 2016
UR  - http://dais.sanu.ac.rs/123456789/2318
AB  - The key parameters related to cathode materials for commercial use are a high specific capacity, good cycling stability, capacity retention at high current rates, as well as the simplicity of the synthesis process. This study presents a facile synthesis of a composite cathode material, Li2FeSiO4 with carbon, under extreme conditions: rapid heating, short dwell at 750 °C and subsequent quenching. The water-soluble polymer methylcellulose was used both as an excellent dispersing agent and a carbon source that pyrolytically degrades to carbon, thereby enabling the homogeneous deployment of the precursor compounds and the control of the Li2FeSiO4 particle growth from the earliest stage of processing. X-ray powder diffraction reveals the formation of Li2FeSiO4 nanocrystallites with a monoclinic structure in the P21/n space group (#14). The composite’s electrochemical performance as a cathode material in Li-ion batteries was examined. The influence of the amount of methylcellulose on the microstructural, morphological, conductive, and electrochemical properties of the obtained powders has been discussed. It has been shown that the overall electrochemical performance is improved with an increase of carbon content, through both the decrease of the mean particle diameter and the increase of electrical conductivity.
PB  - Springer
T2  - Cellulose
T1  - The use of methylcellulose for the synthesis of Li2FeSiO4/C composites
SP  - 239
EP  - 246
VL  - 23
IS  - 1
DO  - 10.1007/s10570-015-0806-9
ER  - 
@article{
author = "Milović, Miloš and Jugović, Dragana and Mitrić, Miodrag and Dominko, Robert and Stojković Simatović, Ivana and Jokić, Bojan and Uskoković, Dragan",
year = "2016",
url = "http://dais.sanu.ac.rs/123456789/2318",
abstract = "The key parameters related to cathode materials for commercial use are a high specific capacity, good cycling stability, capacity retention at high current rates, as well as the simplicity of the synthesis process. This study presents a facile synthesis of a composite cathode material, Li2FeSiO4 with carbon, under extreme conditions: rapid heating, short dwell at 750 °C and subsequent quenching. The water-soluble polymer methylcellulose was used both as an excellent dispersing agent and a carbon source that pyrolytically degrades to carbon, thereby enabling the homogeneous deployment of the precursor compounds and the control of the Li2FeSiO4 particle growth from the earliest stage of processing. X-ray powder diffraction reveals the formation of Li2FeSiO4 nanocrystallites with a monoclinic structure in the P21/n space group (#14). The composite’s electrochemical performance as a cathode material in Li-ion batteries was examined. The influence of the amount of methylcellulose on the microstructural, morphological, conductive, and electrochemical properties of the obtained powders has been discussed. It has been shown that the overall electrochemical performance is improved with an increase of carbon content, through both the decrease of the mean particle diameter and the increase of electrical conductivity.",
publisher = "Springer",
journal = "Cellulose",
title = "The use of methylcellulose for the synthesis of Li2FeSiO4/C composites",
pages = "239-246",
volume = "23",
number = "1",
doi = "10.1007/s10570-015-0806-9"
}
Milović, M., Jugović, D., Mitrić, M., Dominko, R., Stojković Simatović, I., Jokić, B.,& Uskoković, D. (2016). The use of methylcellulose for the synthesis of Li2FeSiO4/C composites.
CelluloseSpringer., 23(1), 239-246. 
https://doi.org/10.1007/s10570-015-0806-9
Milović M, Jugović D, Mitrić M, Dominko R, Stojković Simatović I, Jokić B, Uskoković D. The use of methylcellulose for the synthesis of Li2FeSiO4/C composites. Cellulose. 2016;23(1):239-246
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3
3

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

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

(2014)

TY  - JOUR
AU  - Jugović, Dragana
AU  - Milović, Miloš
AU  - Ivanovski, Valentin N.
AU  - Avdeev, Maxim
AU  - Dominko, Robert
AU  - Jokić, Bojan
AU  - Uskoković, Dragan
PY  - 2014
UR  - http://dais.sanu.ac.rs/123456789/755
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 P21/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 Mössbauer spectroscopy study: the sextet evidenced in the Mössbauer 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 βII polymorph.
T2  - Journal of Power Sources
T1  - Structural study of monoclinic Li2FeSiO4 by X-ray diffraction and Mössbauer spectroscopy
SP  - 75
EP  - 80
VL  - 265
DO  - 10.1016/j.jpowsour.2014.04.121
ER  - 
@article{
author = "Jugović, Dragana and Milović, Miloš and Ivanovski, Valentin N. and Avdeev, Maxim and Dominko, Robert and Jokić, Bojan and Uskoković, Dragan",
year = "2014",
url = "http://dais.sanu.ac.rs/123456789/755",
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 P21/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 Mössbauer spectroscopy study: the sextet evidenced in the Mössbauer 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 βII polymorph.",
journal = "Journal of Power Sources",
title = "Structural study of monoclinic Li2FeSiO4 by X-ray diffraction and Mössbauer spectroscopy",
pages = "75-80",
volume = "265",
doi = "10.1016/j.jpowsour.2014.04.121"
}
Jugović, D., Milović, M., Ivanovski, V. N., Avdeev, M., Dominko, R., Jokić, B.,& Uskoković, D. (2014). Structural study of monoclinic Li2FeSiO4 by X-ray diffraction and Mössbauer 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 B, Uskoković D. Structural study of monoclinic Li2FeSiO4 by X-ray diffraction and Mössbauer spectroscopy. Journal of Power Sources. 2014;265:75-80
9
11
12

Li2FeSiO4 cathode material: the structure and electrochemical performances

Jugović, Dragana; Milović, Miloš; Mitrić, Miodrag; Ivanovski, Valentin N.; Avdeev, Maxim; Jokić, Bojan; Dominko, Robert; Uskoković, Dragan

(Belgrade : Materials Research Society of Serbia, 2014)

TY  - CONF
AU  - Jugović, Dragana
AU  - Milović, Miloš
AU  - Mitrić, Miodrag
AU  - Ivanovski, Valentin N.
AU  - Avdeev, Maxim
AU  - Jokić, Bojan
AU  - Dominko, Robert
AU  - Uskoković, Dragan
PY  - 2014
UR  - http://dais.sanu.ac.rs/123456789/590
AB  - Monoclinic Li2FeSiO4 that crystallizes in P21/n space group was investigated as a potential cathode material for lithium-ion batteries. A combined X-ray diffraction and Mössbauer spectroscopy study was used for the structural investigation. It was found that the crystal structure is prone to an “antisite” defect, the one in which the Fe ion and the Li ion exchange places. This finding was also confirmed by the Mössbauer spectroscopy. In order to obtain composites of Li2FeSiO4 and carbon, several synthesis techniques that use different carbon sources were involved. Electrochemical performances were investigated through galvanostatic charge/discharge tests. Discharge curve profile did not reflect a two-phase intercalation reaction (no obvious voltage plateau) due to the low conductivity at room temperature.
PB  - Belgrade : Materials Research Society of Serbia
C3  - The Sixteenth Annual Conference YUCOMAT 2014: Programme and the Book of Abstracts
T1  - Li2FeSiO4 cathode material: the structure and electrochemical performances
SP  - 6
EP  - 6
ER  - 
@conference{
author = "Jugović, Dragana and Milović, Miloš and Mitrić, Miodrag and Ivanovski, Valentin N. and Avdeev, Maxim and Jokić, Bojan and Dominko, Robert and Uskoković, Dragan",
year = "2014",
url = "http://dais.sanu.ac.rs/123456789/590",
abstract = "Monoclinic Li2FeSiO4 that crystallizes in P21/n space group was investigated as a potential cathode material for lithium-ion batteries. A combined X-ray diffraction and Mössbauer spectroscopy study was used for the structural investigation. It was found that the crystal structure is prone to an “antisite” defect, the one in which the Fe ion and the Li ion exchange places. This finding was also confirmed by the Mössbauer spectroscopy. In order to obtain composites of Li2FeSiO4 and carbon, several synthesis techniques that use different carbon sources were involved. Electrochemical performances were investigated through galvanostatic charge/discharge tests. Discharge curve profile did not reflect a two-phase intercalation reaction (no obvious voltage plateau) due to the low conductivity at room temperature.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "The Sixteenth Annual Conference YUCOMAT 2014: Programme and the Book of Abstracts",
title = "Li2FeSiO4 cathode material: the structure and electrochemical performances",
pages = "6-6"
}
Jugović, D., Milović, M., Mitrić, M., Ivanovski, V. N., Avdeev, M., Jokić, B., Dominko, R.,& Uskoković, D. (2014). Li2FeSiO4 cathode material: the structure and electrochemical performances.
The Sixteenth Annual Conference YUCOMAT 2014: Programme and the Book of AbstractsBelgrade : Materials Research Society of Serbia., null, 6-6. 
Jugović D, Milović M, Mitrić M, Ivanovski VN, Avdeev M, Jokić B, Dominko R, Uskoković D. Li2FeSiO4 cathode material: the structure and electrochemical performances. The Sixteenth Annual Conference YUCOMAT 2014: Programme and the Book of Abstracts. 2014;:6-6

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

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

(Elsevier, 2014)

TY  - JOUR
AU  - Jugović, Dragana
AU  - Milović, Miloš
AU  - Ivanovski, Valentin N.
AU  - Avdeev, Maxim
AU  - Dominko, Robert
AU  - Jokić, Bojan
AU  - Uskoković, Dragan
PY  - 2014
UR  - http://dais.sanu.ac.rs/123456789/542
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 P21/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 Mössbauer spectroscopy study: the sextet evidenced in the Mössbauer 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 βII polymorph.
PB  - Elsevier
T2  - Journal of Power Sources
T1  - Structural study of monoclinic Li2FeSiO4 by X-ray diffraction and Mössbauer spectroscopy
SP  - 75
EP  - 80
VL  - 265
DO  - 10.1016/j.jpowsour.2014.04.121
ER  - 
@article{
author = "Jugović, Dragana and Milović, Miloš and Ivanovski, Valentin N. and Avdeev, Maxim and Dominko, Robert and Jokić, Bojan and Uskoković, Dragan",
year = "2014",
url = "http://dais.sanu.ac.rs/123456789/542",
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 P21/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 Mössbauer spectroscopy study: the sextet evidenced in the Mössbauer 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 βII polymorph.",
publisher = "Elsevier",
journal = "Journal of Power Sources",
title = "Structural study of monoclinic Li2FeSiO4 by X-ray diffraction and Mössbauer spectroscopy",
pages = "75-80",
volume = "265",
doi = "10.1016/j.jpowsour.2014.04.121"
}
Jugović, D., Milović, M., Ivanovski, V. N., Avdeev, M., Dominko, R., Jokić, B.,& Uskoković, D. (2014). Structural study of monoclinic Li2FeSiO4 by X-ray diffraction and Mössbauer spectroscopy.
Journal of Power SourcesElsevier., 265, 75-80. 
https://doi.org/10.1016/j.jpowsour.2014.04.121
Jugović D, Milović M, Ivanovski VN, Avdeev M, Dominko R, Jokić B, Uskoković D. Structural study of monoclinic Li2FeSiO4 by X-ray diffraction and Mössbauer spectroscopy. Journal of Power Sources. 2014;265:75-80
9
11
12

Sol-gel synthesis of Li2FeSiO4/C

Milović, Miloš; Jugović, Dragana; Mitrić, Miodrag; Jokić, Bojan; Dominko, Robert; Uskoković, Dragan

(Belgrade : Institute of Technical Sciences of SASA, 2013)

TY  - CONF
AU  - Milović, Miloš
AU  - Jugović, Dragana
AU  - Mitrić, Miodrag
AU  - Jokić, Bojan
AU  - Dominko, Robert
AU  - Uskoković, Dragan
PY  - 2013
UR  - http://dais.sanu.ac.rs/123456789/444
AB  - Lithium transition-metal orthosilicates with general formula Li2MSiO4 (M = Fe, Mn, Co, etc.) have attracted a lot of interest due to their potentially high theoretical capacities arising from the possibility of the extraction of two Li-ions per formula unit. Li2FeSiO4 takes prominent position among this family of compounds due to its structural stability and natural abundance of iron. In this study, Li2FeSiO4/C composite was synthesized by simple method which involves rapid heating, short high-temperature delay, and subsequent quenching. Starting materials were Li2CO3, Fe(NO3)3·9H2O, Si(OC2H5)4 (TEOS) and water-soluble methylcellulose. Precursor preparation is based on the sol-gel processing and provides homogenous mixing at the molecular level. Structural analysis, morphology examination and electrochemical test of thus obtained powder were performed.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Program and the Book of Abstracts / Twelfth Young Researchers' Conference Materials Sciences and Engineering December 11-13, 2013, Belgrade, Serbia
T1  - Sol-gel synthesis of Li2FeSiO4/C
SP  - 31
EP  - 31
ER  - 
@conference{
author = "Milović, Miloš and Jugović, Dragana and Mitrić, Miodrag and Jokić, Bojan and Dominko, Robert and Uskoković, Dragan",
year = "2013",
url = "http://dais.sanu.ac.rs/123456789/444",
abstract = "Lithium transition-metal orthosilicates with general formula Li2MSiO4 (M = Fe, Mn, Co, etc.) have attracted a lot of interest due to their potentially high theoretical capacities arising from the possibility of the extraction of two Li-ions per formula unit. Li2FeSiO4 takes prominent position among this family of compounds due to its structural stability and natural abundance of iron. In this study, Li2FeSiO4/C composite was synthesized by simple method which involves rapid heating, short high-temperature delay, and subsequent quenching. Starting materials were Li2CO3, Fe(NO3)3·9H2O, Si(OC2H5)4 (TEOS) and water-soluble methylcellulose. Precursor preparation is based on the sol-gel processing and provides homogenous mixing at the molecular level. Structural analysis, morphology examination and electrochemical test of thus obtained powder were performed.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Program and the Book of Abstracts / Twelfth Young Researchers' Conference Materials Sciences and Engineering December 11-13, 2013, Belgrade, Serbia",
title = "Sol-gel synthesis of Li2FeSiO4/C",
pages = "31-31"
}
Milović, M., Jugović, D., Mitrić, M., Jokić, B., Dominko, R.,& Uskoković, D. (2013). Sol-gel synthesis of Li2FeSiO4/C.
Program and the Book of Abstracts / Twelfth Young Researchers' Conference Materials Sciences and Engineering December 11-13, 2013, Belgrade, SerbiaBelgrade : Institute of Technical Sciences of SASA., null, 31-31. 
Milović M, Jugović D, Mitrić M, Jokić B, Dominko R, Uskoković D. Sol-gel synthesis of Li2FeSiO4/C. Program and the Book of Abstracts / Twelfth Young Researchers' Conference Materials Sciences and Engineering December 11-13, 2013, Belgrade, Serbia. 2013;:31-31

LiFePO4 nanocrystals synthesis by hydrothermal reduction method

Stojanović, Zoran S.; Kuzmanović, Maja; Tadić, Marin; Dominko, Robert; Uskoković, Dragan

(Belgrade : Materials Research Society of Serbia, 2013)

TY  - CONF
AU  - Stojanović, Zoran S.
AU  - Kuzmanović, Maja
AU  - Tadić, Marin
AU  - Dominko, Robert
AU  - Uskoković, Dragan
PY  - 2013
UR  - http://dais.sanu.ac.rs/123456789/405
AB  - The nanocrystals of LiFePO4 a cathode material for Li-ion batteries were synthesized by simple one – pot combined colloidal hydrothermal reduction approach. The influences of surfactant ratios on nanocrystal formation are investigated. Also extent of surface modification and agglomeration is assessed. The electrochemical performance of material is investigated on as prepared samples and on samples with carbonized surface layer. The XRD, TEM, SEM, FTIR, laser diffraction PSA, magnetic measurements and galvanostatic cycling are performed characterization techniques.
PB  - Belgrade : Materials Research Society of Serbia
C3  - The Fifteenth Annual Conference YUCOMAT 2013: Programme and the Book of Abstracts
T1  - LiFePO4 nanocrystals synthesis by hydrothermal reduction method
SP  - 76
EP  - 76
ER  - 
@conference{
author = "Stojanović, Zoran S. and Kuzmanović, Maja and Tadić, Marin and Dominko, Robert and Uskoković, Dragan",
year = "2013",
url = "http://dais.sanu.ac.rs/123456789/405",
abstract = "The nanocrystals of LiFePO4 a cathode material for Li-ion batteries were synthesized by simple one – pot combined colloidal hydrothermal reduction approach. The influences of surfactant ratios on nanocrystal formation are investigated. Also extent of surface modification and agglomeration is assessed. The electrochemical performance of material is investigated on as prepared samples and on samples with carbonized surface layer. The XRD, TEM, SEM, FTIR, laser diffraction PSA, magnetic measurements and galvanostatic cycling are performed characterization techniques.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "The Fifteenth Annual Conference YUCOMAT 2013: Programme and the Book of Abstracts",
title = "LiFePO4 nanocrystals synthesis by hydrothermal reduction method",
pages = "76-76"
}
Stojanović, Z. S., Kuzmanović, M., Tadić, M., Dominko, R.,& Uskoković, D. (2013). LiFePO4 nanocrystals synthesis by hydrothermal reduction method.
The Fifteenth Annual Conference YUCOMAT 2013: Programme and the Book of AbstractsBelgrade : Materials Research Society of Serbia., null, 76-76. 
Stojanović ZS, Kuzmanović M, Tadić M, Dominko R, Uskoković D. LiFePO4 nanocrystals synthesis by hydrothermal reduction method. The Fifteenth Annual Conference YUCOMAT 2013: Programme and the Book of Abstracts. 2013;:76-76