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Structural and electrochemical properties of the Li2FeP2O7/C composite prepared using soluble methylcellulose

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2019
10.1016@j.jallcom.2019.01.392.pdf (8.831Mb)
Authors
Jugović, Dragana
Mitrić, Miodrag
Milović, Miloš
Ivanovski, Valentin N.
Škapin, Srečo Davor
Dojčinović, Biljana
Uskoković, Dragan
Article (Accepted Version)
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Abstract
A new method involving the homogeneous dispersion of precursor compounds inside a methylcellulose matrix is used for the synthesis of a composite powder of Li 2 FeP 2 O 7 and carbon. The properties of carbon-containing and carbon-free powders are studied by X-ray powder diffraction (XRD) including Rietveld refinement, Mössbauer spectroscopy, Fourier transform infrared spectroscopy (FTIR), field emission scanning electron microscopy (FESEM), galvanostatic cycling, and electrochemical impedance spectroscopy (EIS). The structure of both powders is refined in a monoclinic framework (space group P2 1 /c). The structural refinement and Mössbauer spectroscopy reveal different degrees of partial occupancy of mixed-occupied sites by lithium. Electrochemical measurements show that the in situ formation of carbon improves capacity (90% of 1-electron theoretical capacity) through decreased charge-transfer resistance. © 2019 Elsevier B.V.
Keywords:
crystal structure / electrochemical reactions / energy storage materials / Mössbauer spectroscopy / X-ray diffraction
Source:
Journal of Alloys and Compounds, 2019, 786, 912-919
Publisher:
  • Elsevier
Funding / projects:
  • Molecular designing of nanoparticles with controlled morphological and physicochemical characteristics and functional materials based on them (RS-45004)
  • Magnetic and radionuclide labeled nanostructured materials for medical applications (RS-45015)
  • Investigation of intermetallics and semiconductors and possible application in renewable energy sources (RS-171001)

DOI: 10.1016/j.jallcom.2019.01.392

ISSN: 0925-8388

WoS: 000461778600108

Scopus: 2-s2.0-85061204040
[ Google Scholar ]
6
3
Handle
https://hdl.handle.net/21.15107/rcub_dais_4938
URI
https://dais.sanu.ac.rs/123456789/4938
Collections
  • ИТН САНУ - Општа колекција / ITS SASA - General collection
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASA
TY  - JOUR
AU  - Jugović, Dragana
AU  - Mitrić, Miodrag
AU  - Milović, Miloš
AU  - Ivanovski, Valentin N.
AU  - Škapin, Srečo Davor
AU  - Dojčinović, Biljana
AU  - Uskoković, Dragan
PY  - 2019
UR  - https://dais.sanu.ac.rs/123456789/4938
AB  - A new method involving the homogeneous dispersion of precursor compounds inside a methylcellulose matrix is used for the synthesis of a composite powder of Li 2 FeP 2 O 7 and carbon. The properties of carbon-containing and carbon-free powders are studied by X-ray powder diffraction (XRD) including Rietveld refinement, Mössbauer spectroscopy, Fourier transform infrared spectroscopy (FTIR), field emission scanning electron microscopy (FESEM), galvanostatic cycling, and electrochemical impedance spectroscopy (EIS). The structure of both powders is refined in a monoclinic framework (space group P2 1 /c). The structural refinement and Mössbauer spectroscopy reveal different degrees of partial occupancy of mixed-occupied sites by lithium. Electrochemical measurements show that the in situ formation of carbon improves capacity (90% of 1-electron theoretical capacity) through decreased charge-transfer resistance. © 2019 Elsevier B.V.
PB  - Elsevier
T2  - Journal of Alloys and Compounds
T1  - Structural and electrochemical properties of the Li2FeP2O7/C composite prepared using soluble methylcellulose
SP  - 912
EP  - 919
VL  - 786
DO  - 10.1016/j.jallcom.2019.01.392
UR  - https://hdl.handle.net/21.15107/rcub_dais_4938
ER  - 
@article{
author = "Jugović, Dragana and Mitrić, Miodrag and Milović, Miloš and Ivanovski, Valentin N. and Škapin, Srečo Davor and Dojčinović, Biljana and Uskoković, Dragan",
year = "2019",
abstract = "A new method involving the homogeneous dispersion of precursor compounds inside a methylcellulose matrix is used for the synthesis of a composite powder of Li 2 FeP 2 O 7 and carbon. The properties of carbon-containing and carbon-free powders are studied by X-ray powder diffraction (XRD) including Rietveld refinement, Mössbauer spectroscopy, Fourier transform infrared spectroscopy (FTIR), field emission scanning electron microscopy (FESEM), galvanostatic cycling, and electrochemical impedance spectroscopy (EIS). The structure of both powders is refined in a monoclinic framework (space group P2 1 /c). The structural refinement and Mössbauer spectroscopy reveal different degrees of partial occupancy of mixed-occupied sites by lithium. Electrochemical measurements show that the in situ formation of carbon improves capacity (90% of 1-electron theoretical capacity) through decreased charge-transfer resistance. © 2019 Elsevier B.V.",
publisher = "Elsevier",
journal = "Journal of Alloys and Compounds",
title = "Structural and electrochemical properties of the Li2FeP2O7/C composite prepared using soluble methylcellulose",
pages = "912-919",
volume = "786",
doi = "10.1016/j.jallcom.2019.01.392",
url = "https://hdl.handle.net/21.15107/rcub_dais_4938"
}
Jugović, D., Mitrić, M., Milović, M., Ivanovski, V. N., Škapin, S. D., Dojčinović, B.,& Uskoković, D.. (2019). Structural and electrochemical properties of the Li2FeP2O7/C composite prepared using soluble methylcellulose. in Journal of Alloys and Compounds
Elsevier., 786, 912-919.
https://doi.org/10.1016/j.jallcom.2019.01.392
https://hdl.handle.net/21.15107/rcub_dais_4938
Jugović D, Mitrić M, Milović M, Ivanovski VN, Škapin SD, Dojčinović B, Uskoković D. Structural and electrochemical properties of the Li2FeP2O7/C composite prepared using soluble methylcellulose. in Journal of Alloys and Compounds. 2019;786:912-919.
doi:10.1016/j.jallcom.2019.01.392
https://hdl.handle.net/21.15107/rcub_dais_4938 .
Jugović, Dragana, Mitrić, Miodrag, Milović, Miloš, Ivanovski, Valentin N., Škapin, Srečo Davor, Dojčinović, Biljana, Uskoković, Dragan, "Structural and electrochemical properties of the Li2FeP2O7/C composite prepared using soluble methylcellulose" in Journal of Alloys and Compounds, 786 (2019):912-919,
https://doi.org/10.1016/j.jallcom.2019.01.392 .,
https://hdl.handle.net/21.15107/rcub_dais_4938 .

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