Structural and electrochemical properties of the Li2FeP2O7/C composite prepared using soluble methylcellulose
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2019
Authors
Jugović, DraganaMitrić, Miodrag
Milović, Miloš
Ivanovski, Valentin N.
Škapin, Srečo Davor
Dojčinović, Biljana P.
Uskoković, Dragan
Article (Published version)
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© 2019 Elsevier B.V.
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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:
Energy storage materials / Crystal structure / Electrochemical reactions / X-ray diffraction / Mössbauer spectroscopySource:
Journal of Alloys and Compounds, 2019, 786, 912-919Funding / projects:
- Molecular designing of nanoparticles with controlled morphological and physicochemical characteristics and functional materials based on them (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45004)
- Magnetic and radionuclide labeled nanostructured materials for medical applications (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45015)
- Investigation of intermetallics and semiconductors and possible application in renewable energy sources (RS-MESTD-Basic Research (BR or ON)-171001)
- Bilateral Cooperation Project between the Republic of Slovenia and the Republic of Serbia
Note:
- Peer-reviewed version of the article (Accepted Manuscript or postprint) available at: https://vinar.vin.bg.ac.rs/handle/123456789/8052
DOI: 10.1016/j.jallcom.2019.01.392
ISSN: 0925-8388
WoS: 000461778600108
Scopus: 2-s2.0-85061204040
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VinčaTY - JOUR AU - Jugović, Dragana AU - Mitrić, Miodrag AU - Milović, Miloš AU - Ivanovski, Valentin N. AU - Škapin, Srečo Davor AU - Dojčinović, Biljana P. AU - Uskoković, Dragan PY - 2019 UR - https://vinar.vin.bg.ac.rs/handle/123456789/8047 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. T2 - Journal of Alloys and Compounds T1 - Structural and electrochemical properties of the Li2FeP2O7/C composite prepared using soluble methylcellulose VL - 786 SP - 912 EP - 919 DO - 10.1016/j.jallcom.2019.01.392 ER -
@article{ author = "Jugović, Dragana and Mitrić, Miodrag and Milović, Miloš and Ivanovski, Valentin N. and Škapin, Srečo Davor and Dojčinović, Biljana P. 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.", journal = "Journal of Alloys and Compounds", title = "Structural and electrochemical properties of the Li2FeP2O7/C composite prepared using soluble methylcellulose", volume = "786", pages = "912-919", doi = "10.1016/j.jallcom.2019.01.392" }
Jugović, D., Mitrić, M., Milović, M., Ivanovski, V. N., Škapin, S. D., Dojčinović, B. P.,& Uskoković, D.. (2019). Structural and electrochemical properties of the Li2FeP2O7/C composite prepared using soluble methylcellulose. in Journal of Alloys and Compounds, 786, 912-919. https://doi.org/10.1016/j.jallcom.2019.01.392
Jugović D, Mitrić M, Milović M, Ivanovski VN, Škapin SD, Dojčinović BP, 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 .
Jugović, Dragana, Mitrić, Miodrag, Milović, Miloš, Ivanovski, Valentin N., Škapin, Srečo Davor, Dojčinović, Biljana P., 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 . .