Serbian Academy of Science and Arts

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Serbian Academy of Science and Arts

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The LiFe(1-x)VxPO4/C composite synthesized by gel-combustion method, with improved rate capability and cycle life in aerated aqueous solutions

Vujković, Milica; Jugović, Dragana; Mitrić, Miodrag; Stojković, Ivana; Cvjetićanin, Nikola; Mentus, Slavko V.

(2013)

TY  - JOUR
AU  - Vujković, Milica
AU  - Jugović, Dragana
AU  - Mitrić, Miodrag
AU  - Stojković, Ivana
AU  - Cvjetićanin, Nikola
AU  - Mentus, Slavko V.
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5784
AB  - The nitrate-(glycine + malonic acid)-assisted gel-combustion process, followed by a heat treatment at 750 degrees C under reductive atmosphere, was used as a fast and effective way to synthesize vanadium doped olivine incorporated in carbon matrix, of general formula LiFe(1-x)VxPO4/C. The two-phased Rietveld refinement confirmed that vanadium incorporation into olivine structure was complete. The heating under reduction atmosphere caused the formation of iron phosphide to some extent, the concentration was determined by Rietveld analysis. The capacity and rate capability of these composites were tested by both cyclic voltammetry and galvanostatic cycling. Specifically, the average discharging capacities of the composite with x=0.055, determined in an saturated aqueous LiNO3 solution equilibrated with air, at the rates of 1, 10 and 100 C, amounted to 91, 73 and 35 mAh g(-1), respectively, with no perceivable capacity fade. (C) 2013 Elsevier Ltd. All rights reserved.
T2  - Electrochimica Acta
T1  - The LiFe(1-x)VxPO4/C composite synthesized by gel-combustion method, with improved rate capability and cycle life in aerated aqueous solutions
VL  - 109
SP  - 835
EP  - 842
DO  - 10.1016/j.electacta.2013.07.219
ER  - 
@article{
author = "Vujković, Milica and Jugović, Dragana and Mitrić, Miodrag and Stojković, Ivana and Cvjetićanin, Nikola and Mentus, Slavko V.",
year = "2013",
abstract = "The nitrate-(glycine + malonic acid)-assisted gel-combustion process, followed by a heat treatment at 750 degrees C under reductive atmosphere, was used as a fast and effective way to synthesize vanadium doped olivine incorporated in carbon matrix, of general formula LiFe(1-x)VxPO4/C. The two-phased Rietveld refinement confirmed that vanadium incorporation into olivine structure was complete. The heating under reduction atmosphere caused the formation of iron phosphide to some extent, the concentration was determined by Rietveld analysis. The capacity and rate capability of these composites were tested by both cyclic voltammetry and galvanostatic cycling. Specifically, the average discharging capacities of the composite with x=0.055, determined in an saturated aqueous LiNO3 solution equilibrated with air, at the rates of 1, 10 and 100 C, amounted to 91, 73 and 35 mAh g(-1), respectively, with no perceivable capacity fade. (C) 2013 Elsevier Ltd. All rights reserved.",
journal = "Electrochimica Acta",
title = "The LiFe(1-x)VxPO4/C composite synthesized by gel-combustion method, with improved rate capability and cycle life in aerated aqueous solutions",
volume = "109",
pages = "835-842",
doi = "10.1016/j.electacta.2013.07.219"
}
Vujković, M., Jugović, D., Mitrić, M., Stojković, I., Cvjetićanin, N.,& Mentus, S. V.. (2013). The LiFe(1-x)VxPO4/C composite synthesized by gel-combustion method, with improved rate capability and cycle life in aerated aqueous solutions. in Electrochimica Acta, 109, 835-842.
https://doi.org/10.1016/j.electacta.2013.07.219
Vujković M, Jugović D, Mitrić M, Stojković I, Cvjetićanin N, Mentus SV. The LiFe(1-x)VxPO4/C composite synthesized by gel-combustion method, with improved rate capability and cycle life in aerated aqueous solutions. in Electrochimica Acta. 2013;109:835-842.
doi:10.1016/j.electacta.2013.07.219 .
Vujković, Milica, Jugović, Dragana, Mitrić, Miodrag, Stojković, Ivana, Cvjetićanin, Nikola, Mentus, Slavko V., "The LiFe(1-x)VxPO4/C composite synthesized by gel-combustion method, with improved rate capability and cycle life in aerated aqueous solutions" in Electrochimica Acta, 109 (2013):835-842,
https://doi.org/10.1016/j.electacta.2013.07.219 . .
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Switching between voltammetry and potentiometry in order to determine H+ or OH- ion concentration over the entire pH scale by means of tungsten disk electrode

Pašti, Igor A.; Lazarević-Pašti, Tamara; Mentus, Slavko V.

(2012)

TY  - JOUR
AU  - Pašti, Igor A.
AU  - Lazarević-Pašti, Tamara
AU  - Mentus, Slavko V.
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4704
AB  - This study demonstrates that tungsten rotating disk electrode can be used for pH or H+/OH- concentration measurements in practically entire pH range, using the combination of voltammetric and potentiometric techniques. In strong acidic (c(H+) GT 10(-3) mol dm(-3)), and alkaline (c(OH-) GT 10(-3) mol dm(-3)) solutions, rotating tungsten disk electrode can be used as a maintenance-free electrode for voltammetric determination of H+ and OH- ion concentration. After an appropriate electrochemical oxidation, the same electrode, in a stationary regime, may be used as a potentiometric sensor in the range 3 LT pH LT 11, with the response -49.5 +/- 2.3 mV per one pH unit. (C) 2011 Elsevier B.V. All rights reserved.
T2  - Journal of Electroanalytical Chemistry
T1  - Switching between voltammetry and potentiometry in order to determine H+ or OH- ion concentration over the entire pH scale by means of tungsten disk electrode
VL  - 665
SP  - 83
EP  - 89
DO  - 10.1016/j.jelechem.2011.11.019
ER  - 
@article{
author = "Pašti, Igor A. and Lazarević-Pašti, Tamara and Mentus, Slavko V.",
year = "2012",
abstract = "This study demonstrates that tungsten rotating disk electrode can be used for pH or H+/OH- concentration measurements in practically entire pH range, using the combination of voltammetric and potentiometric techniques. In strong acidic (c(H+) GT 10(-3) mol dm(-3)), and alkaline (c(OH-) GT 10(-3) mol dm(-3)) solutions, rotating tungsten disk electrode can be used as a maintenance-free electrode for voltammetric determination of H+ and OH- ion concentration. After an appropriate electrochemical oxidation, the same electrode, in a stationary regime, may be used as a potentiometric sensor in the range 3 LT pH LT 11, with the response -49.5 +/- 2.3 mV per one pH unit. (C) 2011 Elsevier B.V. All rights reserved.",
journal = "Journal of Electroanalytical Chemistry",
title = "Switching between voltammetry and potentiometry in order to determine H+ or OH- ion concentration over the entire pH scale by means of tungsten disk electrode",
volume = "665",
pages = "83-89",
doi = "10.1016/j.jelechem.2011.11.019"
}
Pašti, I. A., Lazarević-Pašti, T.,& Mentus, S. V.. (2012). Switching between voltammetry and potentiometry in order to determine H+ or OH- ion concentration over the entire pH scale by means of tungsten disk electrode. in Journal of Electroanalytical Chemistry, 665, 83-89.
https://doi.org/10.1016/j.jelechem.2011.11.019
Pašti IA, Lazarević-Pašti T, Mentus SV. Switching between voltammetry and potentiometry in order to determine H+ or OH- ion concentration over the entire pH scale by means of tungsten disk electrode. in Journal of Electroanalytical Chemistry. 2012;665:83-89.
doi:10.1016/j.jelechem.2011.11.019 .
Pašti, Igor A., Lazarević-Pašti, Tamara, Mentus, Slavko V., "Switching between voltammetry and potentiometry in order to determine H+ or OH- ion concentration over the entire pH scale by means of tungsten disk electrode" in Journal of Electroanalytical Chemistry, 665 (2012):83-89,
https://doi.org/10.1016/j.jelechem.2011.11.019 . .
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Electrochemical properties of nanostructured Li1.2V3O8 in aqueous LiNO3 solution

Stojković, Ivana; Cvjetićanin, Nikola; Mitrić, Miodrag; Mentus, Slavko V.

(2011)

TY  - JOUR
AU  - Stojković, Ivana
AU  - Cvjetićanin, Nikola
AU  - Mitrić, Miodrag
AU  - Mentus, Slavko V.
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4437
AB  - The amorphous hydrated precursor of Li1.2V3O8 was synthesized by soft chemistry method, and then heat-treated in air at several temperatures within the range 200-400 degrees C. The heat-treatment changed its morphological, structural and charging/discharging performance. The product obtained upon the treatment at 300 degrees C. consisting of uniform, rod-shaped particles, 100-150 nm in diameter and 300-800 nm in length, displayed the best electrochemical performance in aqueous LiNO3 solution. Its initial discharge capacity amounted to 136.8 mAh g(-1) at a rate of C/5, which upon 50 charging/discharging cycles decreased for only 12%. (C) 2011 Elsevier Ltd. All rights reserved.
T2  - Electrochimica Acta
T1  - Electrochemical properties of nanostructured Li1.2V3O8 in aqueous LiNO3 solution
VL  - 56
IS  - 18
SP  - 6469
EP  - 6473
DO  - 10.1016/j.electacta.2011.04.129
ER  - 
@article{
author = "Stojković, Ivana and Cvjetićanin, Nikola and Mitrić, Miodrag and Mentus, Slavko V.",
year = "2011",
abstract = "The amorphous hydrated precursor of Li1.2V3O8 was synthesized by soft chemistry method, and then heat-treated in air at several temperatures within the range 200-400 degrees C. The heat-treatment changed its morphological, structural and charging/discharging performance. The product obtained upon the treatment at 300 degrees C. consisting of uniform, rod-shaped particles, 100-150 nm in diameter and 300-800 nm in length, displayed the best electrochemical performance in aqueous LiNO3 solution. Its initial discharge capacity amounted to 136.8 mAh g(-1) at a rate of C/5, which upon 50 charging/discharging cycles decreased for only 12%. (C) 2011 Elsevier Ltd. All rights reserved.",
journal = "Electrochimica Acta",
title = "Electrochemical properties of nanostructured Li1.2V3O8 in aqueous LiNO3 solution",
volume = "56",
number = "18",
pages = "6469-6473",
doi = "10.1016/j.electacta.2011.04.129"
}
Stojković, I., Cvjetićanin, N., Mitrić, M.,& Mentus, S. V.. (2011). Electrochemical properties of nanostructured Li1.2V3O8 in aqueous LiNO3 solution. in Electrochimica Acta, 56(18), 6469-6473.
https://doi.org/10.1016/j.electacta.2011.04.129
Stojković I, Cvjetićanin N, Mitrić M, Mentus SV. Electrochemical properties of nanostructured Li1.2V3O8 in aqueous LiNO3 solution. in Electrochimica Acta. 2011;56(18):6469-6473.
doi:10.1016/j.electacta.2011.04.129 .
Stojković, Ivana, Cvjetićanin, Nikola, Mitrić, Miodrag, Mentus, Slavko V., "Electrochemical properties of nanostructured Li1.2V3O8 in aqueous LiNO3 solution" in Electrochimica Acta, 56, no. 18 (2011):6469-6473,
https://doi.org/10.1016/j.electacta.2011.04.129 . .
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