An attempt to produce NiFe2O4 powder from electrodeposited Fe-Ni alloy powders by subsequent recrystallization in air
Abstract
The electrodeposition of the Fe-Ni powders from citrate-ammonium chloride containing electrolytes for different Ni/Fe ions concentration ratios at pH 4.0 was investigated by the polarization measurements. The morphology, chemical composition, and phase composition of the obtained powders were investigated using SEM, EDS, and XRD analysis. EDS analysis of as-deposited alloy powders confirmed anomalous co-deposition of Fe and Ni. A common characteristic for all as-deposited powder samples was the presence of cone-shaped cavities and nodules on the big agglomerates of the order of 200-400 mu m. After annealing in air at 400, 600, and 700 A degrees C for 3 h, all alloy powders oxidized forming NiO, NiFe2O4, and Fe2O3 phases in different proportions depending on the original powder composition. The NiFe2O4 phase was found to be dominant in the sample with the highest percentage of Fe after annealing at 600 A degrees C.
Keywords:
Fe-Ni / Powder / Electrodeposition / Morphology / Composition analysis / RecrystallizationSource:
Journal of Applied Electrochemistry, 2010, 40, 3, 701-708Funding / projects:
- Ministry of Science and Technological Development of the Republic of Serbia [142032G/2006]
DOI: 10.1007/s10800-009-0047-4
ISSN: 0021-891X
WoS: 000274686700025
Scopus: 2-s2.0-77949264171
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VinčaTY - JOUR AU - Lacnjevac, U. AU - Jovic, B. M. AU - Maksimović, Vesna AU - Jović, Vladimir D. PY - 2010 UR - https://vinar.vin.bg.ac.rs/handle/123456789/3896 AB - The electrodeposition of the Fe-Ni powders from citrate-ammonium chloride containing electrolytes for different Ni/Fe ions concentration ratios at pH 4.0 was investigated by the polarization measurements. The morphology, chemical composition, and phase composition of the obtained powders were investigated using SEM, EDS, and XRD analysis. EDS analysis of as-deposited alloy powders confirmed anomalous co-deposition of Fe and Ni. A common characteristic for all as-deposited powder samples was the presence of cone-shaped cavities and nodules on the big agglomerates of the order of 200-400 mu m. After annealing in air at 400, 600, and 700 A degrees C for 3 h, all alloy powders oxidized forming NiO, NiFe2O4, and Fe2O3 phases in different proportions depending on the original powder composition. The NiFe2O4 phase was found to be dominant in the sample with the highest percentage of Fe after annealing at 600 A degrees C. T2 - Journal of Applied Electrochemistry T1 - An attempt to produce NiFe2O4 powder from electrodeposited Fe-Ni alloy powders by subsequent recrystallization in air VL - 40 IS - 3 SP - 701 EP - 708 DO - 10.1007/s10800-009-0047-4 ER -
@article{ author = "Lacnjevac, U. and Jovic, B. M. and Maksimović, Vesna and Jović, Vladimir D.", year = "2010", abstract = "The electrodeposition of the Fe-Ni powders from citrate-ammonium chloride containing electrolytes for different Ni/Fe ions concentration ratios at pH 4.0 was investigated by the polarization measurements. The morphology, chemical composition, and phase composition of the obtained powders were investigated using SEM, EDS, and XRD analysis. EDS analysis of as-deposited alloy powders confirmed anomalous co-deposition of Fe and Ni. A common characteristic for all as-deposited powder samples was the presence of cone-shaped cavities and nodules on the big agglomerates of the order of 200-400 mu m. After annealing in air at 400, 600, and 700 A degrees C for 3 h, all alloy powders oxidized forming NiO, NiFe2O4, and Fe2O3 phases in different proportions depending on the original powder composition. The NiFe2O4 phase was found to be dominant in the sample with the highest percentage of Fe after annealing at 600 A degrees C.", journal = "Journal of Applied Electrochemistry", title = "An attempt to produce NiFe2O4 powder from electrodeposited Fe-Ni alloy powders by subsequent recrystallization in air", volume = "40", number = "3", pages = "701-708", doi = "10.1007/s10800-009-0047-4" }
Lacnjevac, U., Jovic, B. M., Maksimović, V.,& Jović, V. D.. (2010). An attempt to produce NiFe2O4 powder from electrodeposited Fe-Ni alloy powders by subsequent recrystallization in air. in Journal of Applied Electrochemistry, 40(3), 701-708. https://doi.org/10.1007/s10800-009-0047-4
Lacnjevac U, Jovic BM, Maksimović V, Jović VD. An attempt to produce NiFe2O4 powder from electrodeposited Fe-Ni alloy powders by subsequent recrystallization in air. in Journal of Applied Electrochemistry. 2010;40(3):701-708. doi:10.1007/s10800-009-0047-4 .
Lacnjevac, U., Jovic, B. M., Maksimović, Vesna, Jović, Vladimir D., "An attempt to produce NiFe2O4 powder from electrodeposited Fe-Ni alloy powders by subsequent recrystallization in air" in Journal of Applied Electrochemistry, 40, no. 3 (2010):701-708, https://doi.org/10.1007/s10800-009-0047-4 . .