Codeposition of copper and tin from acid sulphate solutions containing gluconic acid

Survila, Arvydas; Mockus, Z.; Kanapeckaitė, S.; Jasulaitienė, Vitalija; Juškėnas, Remigijus

doi:10.1016/j.jelechem.2010.06.015

Cited by 26 publications

(30 citation statements)

References 25 publications

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“…1), this should result in the decrease of D ef that is in agreement with experimental results. Similar but less pronounced phenomena were also observed in Cu(II) gluconate solutions [19,33]. However, the effect of ligand is opposite and does not support this point of view.…”

Section: Rde Voltammetrymentioning

confidence: 55%

“…Two current peaks were observed on cyclic voltammograms and formation of the adsorbed Sn(I)-gluconate complexes was assumed [10]. RDE voltammetry has been applied to investigate the codeposition of copper and tin and the pH-dependent diffusion coefficients have been observed [19]. This paper deals with the kinetics of Sn(II) reduction in acidic gluconate solutions.…”

Section: Introductionmentioning

confidence: 99%

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Kinetics of Sn(II) reduction in acid sulphate solutions containing gluconic acid

Survila

Mockus

Kanapeckaitė

et al. 2012

Journal of Electroanalytical Chemistry

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Section: Rde Voltammetrymentioning

confidence: 55%

Section: Introductionmentioning

confidence: 99%

Kinetics of Sn(II) reduction in acid sulphate solutions containing gluconic acid

Survila

Mockus

Kanapeckaitė

et al. 2012

Journal of Electroanalytical Chemistry

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“…Besides, destructive chemisorption of ligand and incorporation of its fragments into deposits was observed. 28 Our further studies 31,32 have shown that weakly acid or neutral gluconate baths offer promise for the bronze and brass plating and could be used in this field. Such media are urgent when coatings are used in electronic industry for manufacture of photovoltaic devices, and certain requirements are imposed upon the bath acidity.…”

mentioning

confidence: 97%

Codeposition of Zinc and Copper in Gluconate-Sulfate Solutions

Survila

Mockus

Kanapeckaitė

et al. 2013

J. Electrochem. Soc.

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RDE voltammetry combined with SEM, EDS, XPS and XRD measurements was applied to study partial and net processes occurring in Cu(II) and Zn(II) gluconate solutions containing an excess of sulfate. Optimal plating baths contain sufficiently high gluconate concentrations ranging up to 0.1 M. To suppress hydrogen evolution, weakly acid or neutral media should be created. Compact brass coatings containing ∼10-40% of Zn can be obtained over a fairly wide potential region (-0.97 < E -0.6 V) where the current efficiency ranges from 80 to 100%. At -0.86 < E -0.6 V, the underpotential deposition of zinc is observed. Brass coatings obtained at -0.9 < E < -0.7 V contain two main phases: α-CuZn and pure Cu. The former phase is homogeneous and shows large-scale crystallites, whereas the pure Cu phase is nearly nanocrystalline. At a higher cathodic polarization, extra ε and γ phases are also formed. Besides, an admixture of ZnO (∼3 at%) was detected in the coatings. Codeposition of copper and zinc is accompanied by chemisorption of gluconate with its further partial destruction and incorporation of ligand fragments into the deposits. The molar ratio of carbon and oxygen in the coatings was found to be approximately the same as that in gluconic acid.

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“…Therefore, there are several works concerning the use of alternative, environmentally-friendly electrolytic baths, that can be as efficient as cyanide ions in producing the metallic coatings 4,[6][7][8][9][10] . Among the environmentally friendly electrolytes currently used, citrates, gluconates, sulfamates, tartrates and glycinates are the most studied baths for the electrodeposition of copper alloy coatings 7,[11][12][13] . These compounds are non-toxic complexing agents, easily obtained and degraded 12,14,15 .…”

Section: Introductionmentioning

confidence: 99%

Cu-Sn Coatings Produced Using Environmentally Non-Aggressive Electrolyte Containing Sodium Tartrate

2017

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This work proposes the production of Cu-Sn alloy coatings with anticorrosive properties, using an environmentally non-aggressive bath. The coatings were electrodeposited on carbon steel substrate AISI 1020 using an electrolyte containing CuCl 2 and SnCl 2 , and sodium tartrate as the complexant agent. The produced coatings were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), inductively coupled plasma optical emission spectrometry (ICPOES) and electrochemical impedance spectroscopy (EIS). The film showing the highest corrosion resistance was obtained using j = 100 Am -2 . This coating was composed by 95.18 % m/m Cu and 4.83 % m/m Sn, and presented a uniform surface, without defects and small grain sizes. These characteristics probably contributed to the formation of Cu-Sn protective film onto steel substrate from a tartrate bath.

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Codeposition of copper and tin from acid sulphate solutions containing gluconic acid

Cited by 26 publications

References 25 publications

Kinetics of Sn(II) reduction in acid sulphate solutions containing gluconic acid

Kinetics of Sn(II) reduction in acid sulphate solutions containing gluconic acid

Codeposition of Zinc and Copper in Gluconate-Sulfate Solutions

Cu-Sn Coatings Produced Using Environmentally Non-Aggressive Electrolyte Containing Sodium Tartrate

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