Effect of thiourea on electrocrystallization of Cu–Sn alloys from sulphate electrolytes

Kasach, Aliaksandr A.; Kharitonov, D. S.; Makarova, Irina; Wrzesińska, Angelika; Zharskii, I. M.; Курило, И. И.

doi:10.1016/j.surfcoat.2020.126137

Cited by 9 publications

(10 citation statements)

References 54 publications

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“…4 shows XRD patterns of the coatings deposited in different agitation modes. The results show that the metallic matrix of obtained alloys is a single-phase substitutional solid solution of tin in copper [22] , [66] . Due to a small thickness of the coating (ca.…”

Section: Resultsmentioning

confidence: 90%

“…Cu–Sn alloys have the advantages of decorative appearance, high corrosion resistance, and low toxicity, which make them widely used as decorative, protective, and functional coatings [19] , [20] , [21] , [22] . Moreover, Cu–Sn coatings can be used as a promising substitution of Ni coatings, which are known to cause allergies and dermatitis when their corrosion products are in direct contact with human skin [1] , or being carcinogenic when inhaled [23] .…”

Section: Introductionmentioning

confidence: 99%

“…Most methods used for deposition of these alloys are based on cyanide-containing solutions, which make the process environmentally dangerous [48] . Several alternatives, such as pyrophosphoric- [49] , [50] , methanesulfonic- [51] , [52] , and sulfuric-based [22] , [53] , as well as non-aqueous electrolytes [54] were proposed.…”

Section: Introductionmentioning

confidence: 99%

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Ultrasonic-assisted electrodeposition of Cu-Sn-TiO2 nanocomposite coatings with enhanced antibacterial activity

Kharitonov

Kasach

Sergievich

et al. 2021

Ultrasonics Sonochemistry

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Highlights Cu–Sn–TiO 2 nanocomposite coatings were electrodeposited under mechanical and ultrasonic agitation; Effect of TiO 2 nanoparticles and current density on structural and antibacterial properties was investigated. Distribution of TiO 2 in the coatings improved under ultrasonic agitation; Antibacterial activity of Cu–Sn–TiO 2 coatings was enhanced by ultrasonic agitation.

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Section: Resultsmentioning

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Ultrasonic-assisted electrodeposition of Cu-Sn-TiO2 nanocomposite coatings with enhanced antibacterial activity

Kharitonov

Kasach

Sergievich

et al. 2021

Ultrasonics Sonochemistry

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“…The electrodeposition process was performed using an Autolab 302N potentiostat/galvanostat. The Cu pretreatment layer was cathodically deposited onto the steel surface from the following electrolyte [ 35 ]: 40 g/L of CuSO 4 × 5H 2 O, 100 g/L of H 2 SO 4 , and 3 mg/L of thiourea. The deposition was performed at a cathodic current density of 2 A/dm 2 for 25 s. A copper plate was used as the anode.…”

Section: Methodsmentioning

confidence: 99%

Anodic Electrodeposition of Chitosan–AgNP Composites Using In Situ Coordination with Copper Ions

et al. 2021

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Chitosan is an attractive material for biomedical applications. A novel approach for the anodic electrodeposition of chitosan–AgNP composites using in situ coordination with copper ions is proposed in this work. The surface and cross-section morphology of the obtained coating with varying concentrations of AgNPs were evaluated by SEM, and surface functional groups were analyzed with FT-IR spectroscopy. The mechanism of the formation of the coating based on the chelation of Cu(II) ions with chitosan was discussed. The antibacterial activity of the coatings towards Staphylococcus epidermidis ATCC 35984/RP62A bacteria was analyzed using the live–dead approach. The presented results indicate that the obtained chitosan–AgNP-based films possess some limited anti-biofilm-forming properties and exhibit moderate antibacterial efficiency at high AgNP loads.

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“…Galvanic Cu–Sn coatings containing 10–20 wt.% of tin are similar in their physical-mechanical and corrosion properties to nickel coatings, however, unlike the latter, they are hypoallergenic and have lower cost [ 18 , 19 ]. Electrochemical deposition of Cu–Sn alloys can be performed from the sulfuric acid electrolytes, which are the most versatile and easy-to-prepare type of plating bath [ 20 , 21 , 22 ]. Co-deposition of copper and tin from these electrolytes can occur at potentials that are more positive than the equilibrium potential of the Sn 2+ /Sn system (−0.14 V) due to the underpotential deposition (UPD) of tin [ 20 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of TiO2 Concentration on Microstructure and Properties of Composite Cu–Sn–TiO2 Coatings Obtained by Electrodeposition

et al. 2021

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In this work, Cu–Sn–TiO2 composite coatings were electrochemically obtained from a sulfate bath containing 0–10 g/L of TiO2 nanoparticles. The effect of TiO2 particles on kinetics of cathodic electrodeposition has been studied by linear sweep voltammetry and chronopotentiometry. As compared to the Cu–Sn alloy, the Cu–Sn–TiO2 composite coatings show rougher surfaces with TiO2 agglomerates embedded in the metal matrix. The highest average amount of included TiO2 is 1.7 wt.%, in the case of the bath containing 5 g/L thereof. Composite coatings showed significantly improved antibacterial properties towards E. coli ATCC 8739 bacteria as compared to the Cu–Sn coatings of the same composition. Such improvement has been connected with the corrosion resistance of the composites studied by linear polarization and electrochemical impedance spectroscopy. In the bacterial media and 3% NaCl solutions, Cu–Sn–TiO2 composite coatings have lower corrosion resistance as compared to Cu–Sn alloys, which is caused by the nonuniformity of the surface.

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Effect of thiourea on electrocrystallization of Cu–Sn alloys from sulphate electrolytes

Cited by 9 publications

References 54 publications

Ultrasonic-assisted electrodeposition of Cu-Sn-TiO2 nanocomposite coatings with enhanced antibacterial activity

Ultrasonic-assisted electrodeposition of Cu-Sn-TiO2 nanocomposite coatings with enhanced antibacterial activity

Anodic Electrodeposition of Chitosan–AgNP Composites Using In Situ Coordination with Copper Ions

Effect of TiO2 Concentration on Microstructure and Properties of Composite Cu–Sn–TiO2 Coatings Obtained by Electrodeposition

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