Zn - Mn alloy electrodeposition on steel electrode, in electrolytes containing chloride or sulfate anions, was investigated by chronopotentiometry. Galvanostatically obtained electrodeposits were characterized by X-ray diffraction (XRD), atomic force microscopy (AFM), and atomic absorption spectrophotometry (AAS). It was found that Zn2+ and Mn2+ ion reduction occurred at higher overpotentials in sulfate bath, leading to a higher Mn content in the deposit and smaller crystallites as compared to the chloride electrolyte. AFM images of deposits revealed that with the increase in deposition current density, bigger agglomerates formed in both electrolytes, leading to higher roughness and heterogeneity of the samples. In relation to this observation, the Zn - Mn coatings were deposited at current densities of up to 80 mA cm(-2) because at higher current densities the samples from sulfate electrolyte were non adherent and dendritic. Depending on the deposition current density, the XRD pattern...s of the Zn - Mn deposits produced from chloride electrolyte indicated that the coatings were formed of either eta- or epsilon-Zn-Mn phase, while the coatings obtained from sulfate bath consisted of epsilon-Zn - Mn phase. The linear polarization method showed that Zn - Mn alloys deposited from sulfate electrolyte exhibited higher corrosion resistance in NaCl corrosive media.
TY - JOUR
AU - Bucko, M.
AU - Rogan, Jelena R.
AU - Stevanović, Sanja
AU - Stankovic, S.
AU - Bajat, Jelena
PY - 2013
UR - https://cer.ihtm.bg.ac.rs/handle/123456789/1199
AB - Zn - Mn alloy electrodeposition on steel electrode, in electrolytes containing chloride or sulfate anions, was investigated by chronopotentiometry. Galvanostatically obtained electrodeposits were characterized by X-ray diffraction (XRD), atomic force microscopy (AFM), and atomic absorption spectrophotometry (AAS). It was found that Zn2+ and Mn2+ ion reduction occurred at higher overpotentials in sulfate bath, leading to a higher Mn content in the deposit and smaller crystallites as compared to the chloride electrolyte. AFM images of deposits revealed that with the increase in deposition current density, bigger agglomerates formed in both electrolytes, leading to higher roughness and heterogeneity of the samples. In relation to this observation, the Zn - Mn coatings were deposited at current densities of up to 80 mA cm(-2) because at higher current densities the samples from sulfate electrolyte were non adherent and dendritic. Depending on the deposition current density, the XRD patterns of the Zn - Mn deposits produced from chloride electrolyte indicated that the coatings were formed of either eta- or epsilon-Zn-Mn phase, while the coatings obtained from sulfate bath consisted of epsilon-Zn - Mn phase. The linear polarization method showed that Zn - Mn alloys deposited from sulfate electrolyte exhibited higher corrosion resistance in NaCl corrosive media.
PB - Elsevier
T2 - Surface and Coatings Technology
T1 - The influence of anion type in electrolyte on the properties of electrodeposited Zn-Mn alloy coatings
VL - 228
SP - 221
EP - 228
DO - 10.1016/j.surfcoat.2013.04.032
ER -
@article{
author = "Bucko, M. and Rogan, Jelena R. and Stevanović, Sanja and Stankovic, S. and Bajat, Jelena",
year = "2013",
abstract = "Zn - Mn alloy electrodeposition on steel electrode, in electrolytes containing chloride or sulfate anions, was investigated by chronopotentiometry. Galvanostatically obtained electrodeposits were characterized by X-ray diffraction (XRD), atomic force microscopy (AFM), and atomic absorption spectrophotometry (AAS). It was found that Zn2+ and Mn2+ ion reduction occurred at higher overpotentials in sulfate bath, leading to a higher Mn content in the deposit and smaller crystallites as compared to the chloride electrolyte. AFM images of deposits revealed that with the increase in deposition current density, bigger agglomerates formed in both electrolytes, leading to higher roughness and heterogeneity of the samples. In relation to this observation, the Zn - Mn coatings were deposited at current densities of up to 80 mA cm(-2) because at higher current densities the samples from sulfate electrolyte were non adherent and dendritic. Depending on the deposition current density, the XRD patterns of the Zn - Mn deposits produced from chloride electrolyte indicated that the coatings were formed of either eta- or epsilon-Zn-Mn phase, while the coatings obtained from sulfate bath consisted of epsilon-Zn - Mn phase. The linear polarization method showed that Zn - Mn alloys deposited from sulfate electrolyte exhibited higher corrosion resistance in NaCl corrosive media.",
publisher = "Elsevier",
journal = "Surface and Coatings Technology",
title = "The influence of anion type in electrolyte on the properties of electrodeposited Zn-Mn alloy coatings",
volume = "228",
pages = "221-228",
doi = "10.1016/j.surfcoat.2013.04.032"
}
Bucko, M., Rogan, J. R., Stevanović, S., Stankovic, S.,& Bajat, J.. (2013). The influence of anion type in electrolyte on the properties of electrodeposited Zn-Mn alloy coatings. in Surface and Coatings Technology
Elsevier., 228, 221-228.
https://doi.org/10.1016/j.surfcoat.2013.04.032
Bucko M, Rogan JR, Stevanović S, Stankovic S, Bajat J. The influence of anion type in electrolyte on the properties of electrodeposited Zn-Mn alloy coatings. in Surface and Coatings Technology. 2013;228:221-228.
doi:10.1016/j.surfcoat.2013.04.032 .
Bucko, M., Rogan, Jelena R., Stevanović, Sanja, Stankovic, S., Bajat, Jelena, "The influence of anion type in electrolyte on the properties of electrodeposited Zn-Mn alloy coatings" in Surface and Coatings Technology, 228 (2013):221-228,
https://doi.org/10.1016/j.surfcoat.2013.04.032 . .
