Mixed Ni-Mg Spinel Ferrites Used as Materials for Charge Storage Electrodes
2022
Аутори
Dojčinović, MilenaVasiljević, Zorka Ž.
Pavlović, Vera P.
Vujančević, Jelena
Tadić, Nenad
Nikolić, Maria Vesna
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Problems that countries all over the world have in common are dependence of economy and energy production on fossil fuels. There is a growing need for energy production and storage routes that are safe for the environment, renewable, efficient and cheap. One of the directions in which science is moving forward is discovering materials suitable for use in batteries and supercapacitors to improve their operating potential, electrical capacity or biocompatibility. The objective is also to synthesize materials for batteries or supercapacitors that are cheap, consist of earth abundant elements and have high electrochemical activity.In this work, mixed nickel-magnesium ferrites NixMg1−xFe2O4, with x being 0, 0.1, 0.3, 0.5, 0.7, 0.9 and 1, were synthesized via sol-gel combustion synthesis with citric acid used as fuel and nitrate ions used as oxidizing agents. Combusted powders were calcined at 700 °C. The structure and morphology of the powders were characterized with X-ray diffraction metho...d (XRD), field emission scanning electron microscopy (FESEM), Raman and FTIR spectroscopy. The band gap was calculated by using UV/Vis diffuse reflectance spectroscopy (DRS). Samples were cast on nickel foam and tested as energy storage materials in a three-electrode setup in 3 M KOH aqueous solution as electrolyte. The methods used were cyclic voltammetry (CV) and constant current chronopotentiometry to obtain galvanostatic charge-discharge (GCD) curves. Results show that all of the synthesized materials show battery-type charge storage in alkaline electrolyte due to the formation of metal cation oxyhydroxides. With increasing nickel content, electrochemical activity drops. The highest value of capacity, 34.3 mA h g-1 at the current density of 500 mA g-1 is ascribed to magnesium ferrite, MgFe2O4.
Извор:
COIN2022 - Contemporary Batteries and Supercapacitors - International Symposium Belgrade 2022 - Program and Book of Abstracts, June 1-2, 2022, 2022Издавач:
- University of Belgrade, Faculty of Physical Chemistry, Belgrade, Serbia
Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200053 (Универзитет у Београду, Институт за мултидисциплинарна истраживања) (RS-MESTD-inst-2020-200053)
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200175 (Институт техничких наука САНУ, Београд) (RS-MESTD-inst-2020-200175)
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200105 (Универзитет у Београду, Машински факултет) (RS-MESTD-inst-2020-200105)
Колекције
Институција/група
Mašinski fakultetTY - CONF AU - Dojčinović, Milena AU - Vasiljević, Zorka Ž. AU - Pavlović, Vera P. AU - Vujančević, Jelena AU - Tadić, Nenad AU - Nikolić, Maria Vesna PY - 2022 UR - https://machinery.mas.bg.ac.rs/handle/123456789/4225 AB - Problems that countries all over the world have in common are dependence of economy and energy production on fossil fuels. There is a growing need for energy production and storage routes that are safe for the environment, renewable, efficient and cheap. One of the directions in which science is moving forward is discovering materials suitable for use in batteries and supercapacitors to improve their operating potential, electrical capacity or biocompatibility. The objective is also to synthesize materials for batteries or supercapacitors that are cheap, consist of earth abundant elements and have high electrochemical activity.In this work, mixed nickel-magnesium ferrites NixMg1−xFe2O4, with x being 0, 0.1, 0.3, 0.5, 0.7, 0.9 and 1, were synthesized via sol-gel combustion synthesis with citric acid used as fuel and nitrate ions used as oxidizing agents. Combusted powders were calcined at 700 °C. The structure and morphology of the powders were characterized with X-ray diffraction method (XRD), field emission scanning electron microscopy (FESEM), Raman and FTIR spectroscopy. The band gap was calculated by using UV/Vis diffuse reflectance spectroscopy (DRS). Samples were cast on nickel foam and tested as energy storage materials in a three-electrode setup in 3 M KOH aqueous solution as electrolyte. The methods used were cyclic voltammetry (CV) and constant current chronopotentiometry to obtain galvanostatic charge-discharge (GCD) curves. Results show that all of the synthesized materials show battery-type charge storage in alkaline electrolyte due to the formation of metal cation oxyhydroxides. With increasing nickel content, electrochemical activity drops. The highest value of capacity, 34.3 mA h g-1 at the current density of 500 mA g-1 is ascribed to magnesium ferrite, MgFe2O4. PB - University of Belgrade, Faculty of Physical Chemistry, Belgrade, Serbia C3 - COIN2022 - Contemporary Batteries and Supercapacitors - International Symposium Belgrade 2022 - Program and Book of Abstracts, June 1-2, 2022 T1 - Mixed Ni-Mg Spinel Ferrites Used as Materials for Charge Storage Electrodes UR - https://hdl.handle.net/21.15107/rcub_machinery_4225 ER -
@conference{ author = "Dojčinović, Milena and Vasiljević, Zorka Ž. and Pavlović, Vera P. and Vujančević, Jelena and Tadić, Nenad and Nikolić, Maria Vesna", year = "2022", abstract = "Problems that countries all over the world have in common are dependence of economy and energy production on fossil fuels. There is a growing need for energy production and storage routes that are safe for the environment, renewable, efficient and cheap. One of the directions in which science is moving forward is discovering materials suitable for use in batteries and supercapacitors to improve their operating potential, electrical capacity or biocompatibility. The objective is also to synthesize materials for batteries or supercapacitors that are cheap, consist of earth abundant elements and have high electrochemical activity.In this work, mixed nickel-magnesium ferrites NixMg1−xFe2O4, with x being 0, 0.1, 0.3, 0.5, 0.7, 0.9 and 1, were synthesized via sol-gel combustion synthesis with citric acid used as fuel and nitrate ions used as oxidizing agents. Combusted powders were calcined at 700 °C. The structure and morphology of the powders were characterized with X-ray diffraction method (XRD), field emission scanning electron microscopy (FESEM), Raman and FTIR spectroscopy. The band gap was calculated by using UV/Vis diffuse reflectance spectroscopy (DRS). Samples were cast on nickel foam and tested as energy storage materials in a three-electrode setup in 3 M KOH aqueous solution as electrolyte. The methods used were cyclic voltammetry (CV) and constant current chronopotentiometry to obtain galvanostatic charge-discharge (GCD) curves. Results show that all of the synthesized materials show battery-type charge storage in alkaline electrolyte due to the formation of metal cation oxyhydroxides. With increasing nickel content, electrochemical activity drops. The highest value of capacity, 34.3 mA h g-1 at the current density of 500 mA g-1 is ascribed to magnesium ferrite, MgFe2O4.", publisher = "University of Belgrade, Faculty of Physical Chemistry, Belgrade, Serbia", journal = "COIN2022 - Contemporary Batteries and Supercapacitors - International Symposium Belgrade 2022 - Program and Book of Abstracts, June 1-2, 2022", title = "Mixed Ni-Mg Spinel Ferrites Used as Materials for Charge Storage Electrodes", url = "https://hdl.handle.net/21.15107/rcub_machinery_4225" }
Dojčinović, M., Vasiljević, Z. Ž., Pavlović, V. P., Vujančević, J., Tadić, N.,& Nikolić, M. V.. (2022). Mixed Ni-Mg Spinel Ferrites Used as Materials for Charge Storage Electrodes. in COIN2022 - Contemporary Batteries and Supercapacitors - International Symposium Belgrade 2022 - Program and Book of Abstracts, June 1-2, 2022 University of Belgrade, Faculty of Physical Chemistry, Belgrade, Serbia.. https://hdl.handle.net/21.15107/rcub_machinery_4225
Dojčinović M, Vasiljević ZŽ, Pavlović VP, Vujančević J, Tadić N, Nikolić MV. Mixed Ni-Mg Spinel Ferrites Used as Materials for Charge Storage Electrodes. in COIN2022 - Contemporary Batteries and Supercapacitors - International Symposium Belgrade 2022 - Program and Book of Abstracts, June 1-2, 2022. 2022;. https://hdl.handle.net/21.15107/rcub_machinery_4225 .
Dojčinović, Milena , Vasiljević, Zorka Ž., Pavlović, Vera P., Vujančević, Jelena, Tadić, Nenad, Nikolić, Maria Vesna, "Mixed Ni-Mg Spinel Ferrites Used as Materials for Charge Storage Electrodes" in COIN2022 - Contemporary Batteries and Supercapacitors - International Symposium Belgrade 2022 - Program and Book of Abstracts, June 1-2, 2022 (2022), https://hdl.handle.net/21.15107/rcub_machinery_4225 .