Synthesis of Li2FeSiO4/C composite by sol-gel citric acid assisted method
Sinteza kompozita Li2FeSiO4/C sol-gel metodom uz pomoć limunske kiseline
Authors
Milović, Miloš
Jugović, Dragana

Mitrić, Miodrag

Stojković Simatović, Ivana

Škapin, Srečo Davor

Uskoković, Dragan

Article (Published version)
Metadata
Show full item recordAbstract
This paper describes a procedure for the synthesis of the composite Li2FeSiO4/C by sol-gel method using citric acid as a chelating agent; the resulting gel precursor was thermally treated in a slightly reductive atmosphere of nitrogen with five percent of hydrogen, whereupon the in situ decomposition of citric acid to carbon occurs during formation of the Li2FeSiO4. The obtained nanocrystalline powder (with mean crystallite size of 27nm) crystallized in the P21/n space group as confirmed by X-ray diffractometry. The morphology of the powder was examined by scanning electron microscopy which revealed a wide distribution of particles by size, from 100 to 500 nm. The material has been tested as cathode in lithium-ion cell and exhibits high efficiency and almost theoretical capacity.
U ovom radu opisan je postupak sinteze kompozita Li2FeSiO4/C sol-gel metodom koristeći limunsku kiselinu kao helatni agens; dobijeni gel-prekursor termički je tretiran u blago redukcionoj atmosferi azota sa pet posto vodonika, pri čemu dolazi do in situ razlaganja limunske kiseline do ugljenika za vreme nastanka Li2FeSiO4. Dobijeni nanokristalniprah (srednje veličine kristalita 27 nm) kristalisao je u P21/n prostornoj grupi što je potvrđeno rendgenskom difraktometrijom. Morfologija praha ispitana je skanirajućom elektronskom mikroskopijom koja otkriva široku raspodelu čestica po veličini, od 100 - 500 nm. Materijal je ispitan kao katoda u litijum-jonskoj ćeliji i pokazuje visoku efikasnost i praktično teorijski kapacitet.
Source:
Tehnika, 2016, 71, 2, 181-184Publisher:
- Belgrade : Union of Engineers and Technicians of Serbia
Funding / projects:
URI
https://scindeks.ceon.rs/article.aspx?artid=0040-21761602181Mhttp://www.ncbi.nlm.nih.gov/pubmed/0040-21761602181M
https://dais.sanu.ac.rs/123456789/3360
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - JOUR AU - Milović, Miloš AU - Jugović, Dragana AU - Mitrić, Miodrag AU - Stojković Simatović, Ivana AU - Škapin, Srečo Davor AU - Uskoković, Dragan PY - 2016 UR - https://scindeks.ceon.rs/article.aspx?artid=0040-21761602181M UR - http://www.ncbi.nlm.nih.gov/pubmed/0040-21761602181M UR - https://dais.sanu.ac.rs/123456789/3360 AB - This paper describes a procedure for the synthesis of the composite Li2FeSiO4/C by sol-gel method using citric acid as a chelating agent; the resulting gel precursor was thermally treated in a slightly reductive atmosphere of nitrogen with five percent of hydrogen, whereupon the in situ decomposition of citric acid to carbon occurs during formation of the Li2FeSiO4. The obtained nanocrystalline powder (with mean crystallite size of 27nm) crystallized in the P21/n space group as confirmed by X-ray diffractometry. The morphology of the powder was examined by scanning electron microscopy which revealed a wide distribution of particles by size, from 100 to 500 nm. The material has been tested as cathode in lithium-ion cell and exhibits high efficiency and almost theoretical capacity. AB - U ovom radu opisan je postupak sinteze kompozita Li2FeSiO4/C sol-gel metodom koristeći limunsku kiselinu kao helatni agens; dobijeni gel-prekursor termički je tretiran u blago redukcionoj atmosferi azota sa pet posto vodonika, pri čemu dolazi do in situ razlaganja limunske kiseline do ugljenika za vreme nastanka Li2FeSiO4. Dobijeni nanokristalniprah (srednje veličine kristalita 27 nm) kristalisao je u P21/n prostornoj grupi što je potvrđeno rendgenskom difraktometrijom. Morfologija praha ispitana je skanirajućom elektronskom mikroskopijom koja otkriva široku raspodelu čestica po veličini, od 100 - 500 nm. Materijal je ispitan kao katoda u litijum-jonskoj ćeliji i pokazuje visoku efikasnost i praktično teorijski kapacitet. PB - Belgrade : Union of Engineers and Technicians of Serbia T2 - Tehnika T1 - Synthesis of Li2FeSiO4/C composite by sol-gel citric acid assisted method T1 - Sinteza kompozita Li2FeSiO4/C sol-gel metodom uz pomoć limunske kiseline SP - 181 EP - 184 VL - 71 IS - 2 DO - 10.5937/tehnika1602181M UR - https://hdl.handle.net/21.15107/rcub_dais_3360 ER -
@article{ author = "Milović, Miloš and Jugović, Dragana and Mitrić, Miodrag and Stojković Simatović, Ivana and Škapin, Srečo Davor and Uskoković, Dragan", year = "2016", abstract = "This paper describes a procedure for the synthesis of the composite Li2FeSiO4/C by sol-gel method using citric acid as a chelating agent; the resulting gel precursor was thermally treated in a slightly reductive atmosphere of nitrogen with five percent of hydrogen, whereupon the in situ decomposition of citric acid to carbon occurs during formation of the Li2FeSiO4. The obtained nanocrystalline powder (with mean crystallite size of 27nm) crystallized in the P21/n space group as confirmed by X-ray diffractometry. The morphology of the powder was examined by scanning electron microscopy which revealed a wide distribution of particles by size, from 100 to 500 nm. The material has been tested as cathode in lithium-ion cell and exhibits high efficiency and almost theoretical capacity., U ovom radu opisan je postupak sinteze kompozita Li2FeSiO4/C sol-gel metodom koristeći limunsku kiselinu kao helatni agens; dobijeni gel-prekursor termički je tretiran u blago redukcionoj atmosferi azota sa pet posto vodonika, pri čemu dolazi do in situ razlaganja limunske kiseline do ugljenika za vreme nastanka Li2FeSiO4. Dobijeni nanokristalniprah (srednje veličine kristalita 27 nm) kristalisao je u P21/n prostornoj grupi što je potvrđeno rendgenskom difraktometrijom. Morfologija praha ispitana je skanirajućom elektronskom mikroskopijom koja otkriva široku raspodelu čestica po veličini, od 100 - 500 nm. Materijal je ispitan kao katoda u litijum-jonskoj ćeliji i pokazuje visoku efikasnost i praktično teorijski kapacitet.", publisher = "Belgrade : Union of Engineers and Technicians of Serbia", journal = "Tehnika", title = "Synthesis of Li2FeSiO4/C composite by sol-gel citric acid assisted method, Sinteza kompozita Li2FeSiO4/C sol-gel metodom uz pomoć limunske kiseline", pages = "181-184", volume = "71", number = "2", doi = "10.5937/tehnika1602181M", url = "https://hdl.handle.net/21.15107/rcub_dais_3360" }
Milović, M., Jugović, D., Mitrić, M., Stojković Simatović, I., Škapin, S. D.,& Uskoković, D.. (2016). Synthesis of Li2FeSiO4/C composite by sol-gel citric acid assisted method. in Tehnika Belgrade : Union of Engineers and Technicians of Serbia., 71(2), 181-184. https://doi.org/10.5937/tehnika1602181M https://hdl.handle.net/21.15107/rcub_dais_3360
Milović M, Jugović D, Mitrić M, Stojković Simatović I, Škapin SD, Uskoković D. Synthesis of Li2FeSiO4/C composite by sol-gel citric acid assisted method. in Tehnika. 2016;71(2):181-184. doi:10.5937/tehnika1602181M https://hdl.handle.net/21.15107/rcub_dais_3360 .
Milović, Miloš, Jugović, Dragana, Mitrić, Miodrag, Stojković Simatović, Ivana, Škapin, Srečo Davor, Uskoković, Dragan, "Synthesis of Li2FeSiO4/C composite by sol-gel citric acid assisted method" in Tehnika, 71, no. 2 (2016):181-184, https://doi.org/10.5937/tehnika1602181M ., https://hdl.handle.net/21.15107/rcub_dais_3360 .