Synthesis of MnFe2O4 nanoparticles by mechanochemical reaction
Apstrakt
The influence of long-term milling of a mixture of MnCO3 and alpha-Fe2O3, and of MnO2 and alpha-Fe2O3 powders in a planetary ball mill on the reaction synthesis of nanosized MnFe2O4 ferrites was studied. The mechano-chemical reaction leading to formation of the MnFe2O4 spinel phase was followed by X-ray diffraction. The spinel phase was first observed after 10 h of milling and its formation was completed after 20 h in case of the MnCO3 - alpha-Fe2O3 mixture. The synthesized MnFe2O4 ferrite has a nanocrystalline structure with a crystallite size of about 28 nm. The thermal treatment of the as-milled powder at 400 degrees C for 4 h led to formation of the MnFe2O4 crystalline phase in case of the mixture of MnCO3 and alpha-Fe2O3, but in MnO2 alpha-Fe2O3 case thermal treatment at temperatures of 400 degrees C and higher leads to formation of (Mn,Fe)203 and separation of Mn2O3 and Fe2O3.
Ključne reči:
manganese ferrite / nanocrystalline materials / mechano-synthesisIzvor:
Journal of Optoelectronics and Advanced Materials, 2006, 8, 1, 312-314Izdavač:
- Natl Inst Optoelectronics, Bucharest-Magurele
Kolekcije
Institucija/grupa
Hemijski fakultet / Faculty of ChemistryTY - JOUR AU - Osmokrovic, P AU - Jovalekic, C AU - Manojlović, Dragan D. AU - Pavlović, Miodrag B. PY - 2006 UR - https://cherry.chem.bg.ac.rs/handle/123456789/758 AB - The influence of long-term milling of a mixture of MnCO3 and alpha-Fe2O3, and of MnO2 and alpha-Fe2O3 powders in a planetary ball mill on the reaction synthesis of nanosized MnFe2O4 ferrites was studied. The mechano-chemical reaction leading to formation of the MnFe2O4 spinel phase was followed by X-ray diffraction. The spinel phase was first observed after 10 h of milling and its formation was completed after 20 h in case of the MnCO3 - alpha-Fe2O3 mixture. The synthesized MnFe2O4 ferrite has a nanocrystalline structure with a crystallite size of about 28 nm. The thermal treatment of the as-milled powder at 400 degrees C for 4 h led to formation of the MnFe2O4 crystalline phase in case of the mixture of MnCO3 and alpha-Fe2O3, but in MnO2 alpha-Fe2O3 case thermal treatment at temperatures of 400 degrees C and higher leads to formation of (Mn,Fe)203 and separation of Mn2O3 and Fe2O3. PB - Natl Inst Optoelectronics, Bucharest-Magurele T2 - Journal of Optoelectronics and Advanced Materials T1 - Synthesis of MnFe2O4 nanoparticles by mechanochemical reaction VL - 8 IS - 1 SP - 312 EP - 314 UR - https://hdl.handle.net/21.15107/rcub_cherry_758 ER -
@article{ author = "Osmokrovic, P and Jovalekic, C and Manojlović, Dragan D. and Pavlović, Miodrag B.", year = "2006", abstract = "The influence of long-term milling of a mixture of MnCO3 and alpha-Fe2O3, and of MnO2 and alpha-Fe2O3 powders in a planetary ball mill on the reaction synthesis of nanosized MnFe2O4 ferrites was studied. The mechano-chemical reaction leading to formation of the MnFe2O4 spinel phase was followed by X-ray diffraction. The spinel phase was first observed after 10 h of milling and its formation was completed after 20 h in case of the MnCO3 - alpha-Fe2O3 mixture. The synthesized MnFe2O4 ferrite has a nanocrystalline structure with a crystallite size of about 28 nm. The thermal treatment of the as-milled powder at 400 degrees C for 4 h led to formation of the MnFe2O4 crystalline phase in case of the mixture of MnCO3 and alpha-Fe2O3, but in MnO2 alpha-Fe2O3 case thermal treatment at temperatures of 400 degrees C and higher leads to formation of (Mn,Fe)203 and separation of Mn2O3 and Fe2O3.", publisher = "Natl Inst Optoelectronics, Bucharest-Magurele", journal = "Journal of Optoelectronics and Advanced Materials", title = "Synthesis of MnFe2O4 nanoparticles by mechanochemical reaction", volume = "8", number = "1", pages = "312-314", url = "https://hdl.handle.net/21.15107/rcub_cherry_758" }
Osmokrovic, P., Jovalekic, C., Manojlović, D. D.,& Pavlović, M. B.. (2006). Synthesis of MnFe2O4 nanoparticles by mechanochemical reaction. in Journal of Optoelectronics and Advanced Materials Natl Inst Optoelectronics, Bucharest-Magurele., 8(1), 312-314. https://hdl.handle.net/21.15107/rcub_cherry_758
Osmokrovic P, Jovalekic C, Manojlović DD, Pavlović MB. Synthesis of MnFe2O4 nanoparticles by mechanochemical reaction. in Journal of Optoelectronics and Advanced Materials. 2006;8(1):312-314. https://hdl.handle.net/21.15107/rcub_cherry_758 .
Osmokrovic, P, Jovalekic, C, Manojlović, Dragan D., Pavlović, Miodrag B., "Synthesis of MnFe2O4 nanoparticles by mechanochemical reaction" in Journal of Optoelectronics and Advanced Materials, 8, no. 1 (2006):312-314, https://hdl.handle.net/21.15107/rcub_cherry_758 .