The electrodeposition of the Fe-Ni powders from citrate containing electrolytes for different Ni/Fe ions concentration ratios, using Fe(Ill) and Fe(II) salts at pH 4.5 and pH 4.0 respectively was investigated by the polarization measurements and cyclic voltammetry. The morphology and composition of the electrodeposited powders were investigated by SEM and EDS analysis. The EDS analysis of the alloy powders confirmed anomalous co-deposition of Fe and Ni from both solutions, with the one obtained using Fe(III) salt being more pronounced. The morphology of electrodeposited powders was found to depend on the Ni/Fe ions concentration ratio, as well as on the valence of Fe ions used. A common characteristic for all powder samples was the presence of cone shaped cavities and nodules, while for the ratio Ni/Fe = 9/1 in both electrolytes pagoda like crystals, corresponding to the FeNi3 single crystal, have been detected. In the case of Fe(III) containing electrolytes current efficiency for powd...er electrodeposition was very small (about 1-2%) due to the first step in the electrochemical reaction being reduction of Fe(III) into Fe(II), while in the case of Fe(II) containing electrolytes current efficiency for powder electrodeposition varied between about 15% and 8% depending on the Ni/Fe ratio.
TY - JOUR
AU - Lačnjevac, Uroš
AU - Jović, Borka M
AU - Jović, Vladimir D
PY - 2009
UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/364
AB - The electrodeposition of the Fe-Ni powders from citrate containing electrolytes for different Ni/Fe ions concentration ratios, using Fe(Ill) and Fe(II) salts at pH 4.5 and pH 4.0 respectively was investigated by the polarization measurements and cyclic voltammetry. The morphology and composition of the electrodeposited powders were investigated by SEM and EDS analysis. The EDS analysis of the alloy powders confirmed anomalous co-deposition of Fe and Ni from both solutions, with the one obtained using Fe(III) salt being more pronounced. The morphology of electrodeposited powders was found to depend on the Ni/Fe ions concentration ratio, as well as on the valence of Fe ions used. A common characteristic for all powder samples was the presence of cone shaped cavities and nodules, while for the ratio Ni/Fe = 9/1 in both electrolytes pagoda like crystals, corresponding to the FeNi3 single crystal, have been detected. In the case of Fe(III) containing electrolytes current efficiency for powder electrodeposition was very small (about 1-2%) due to the first step in the electrochemical reaction being reduction of Fe(III) into Fe(II), while in the case of Fe(II) containing electrolytes current efficiency for powder electrodeposition varied between about 15% and 8% depending on the Ni/Fe ratio.
PB - Pergamon-Elsevier Science Ltd, Oxford
T2 - Electrochimica Acta
T1 - Morphology and composition of the Fe-Ni powders electrodeposited from citrate containing electrolytes
EP - 543
IS - 2
SP - 535
VL - 55
DO - 10.1016/j.electacta.2009.09.012
ER -
@article{
author = "Lačnjevac, Uroš and Jović, Borka M and Jović, Vladimir D",
year = "2009",
abstract = "The electrodeposition of the Fe-Ni powders from citrate containing electrolytes for different Ni/Fe ions concentration ratios, using Fe(Ill) and Fe(II) salts at pH 4.5 and pH 4.0 respectively was investigated by the polarization measurements and cyclic voltammetry. The morphology and composition of the electrodeposited powders were investigated by SEM and EDS analysis. The EDS analysis of the alloy powders confirmed anomalous co-deposition of Fe and Ni from both solutions, with the one obtained using Fe(III) salt being more pronounced. The morphology of electrodeposited powders was found to depend on the Ni/Fe ions concentration ratio, as well as on the valence of Fe ions used. A common characteristic for all powder samples was the presence of cone shaped cavities and nodules, while for the ratio Ni/Fe = 9/1 in both electrolytes pagoda like crystals, corresponding to the FeNi3 single crystal, have been detected. In the case of Fe(III) containing electrolytes current efficiency for powder electrodeposition was very small (about 1-2%) due to the first step in the electrochemical reaction being reduction of Fe(III) into Fe(II), while in the case of Fe(II) containing electrolytes current efficiency for powder electrodeposition varied between about 15% and 8% depending on the Ni/Fe ratio.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Electrochimica Acta",
title = "Morphology and composition of the Fe-Ni powders electrodeposited from citrate containing electrolytes",
pages = "543-535",
number = "2",
volume = "55",
doi = "10.1016/j.electacta.2009.09.012"
}
Lačnjevac, U., Jović, B. M.,& Jović, V. D.. (2009). Morphology and composition of the Fe-Ni powders electrodeposited from citrate containing electrolytes. in Electrochimica Acta
Pergamon-Elsevier Science Ltd, Oxford., 55(2), 535-543.
https://doi.org/10.1016/j.electacta.2009.09.012
Lačnjevac U, Jović BM, Jović VD. Morphology and composition of the Fe-Ni powders electrodeposited from citrate containing electrolytes. in Electrochimica Acta. 2009;55(2):535-543.
doi:10.1016/j.electacta.2009.09.012 .
Lačnjevac, Uroš, Jović, Borka M, Jović, Vladimir D, "Morphology and composition of the Fe-Ni powders electrodeposited from citrate containing electrolytes" in Electrochimica Acta, 55, no. 2 (2009):535-543,
https://doi.org/10.1016/j.electacta.2009.09.012 . .
