Study of the effect of Triethanolamine as a chelating agent in the simultaneous electrodeposition of copper and zinc from non-cyanide electrolytes

Ramírez, Carolina; Calderón, Jorge A.

doi:10.1016/j.jelechem.2015.06.003

Cited by 40 publications

(25 citation statements)

References 18 publications

(37 reference statements)

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“…Similar results were observed by Calderón et al during copper electrodeposition from an alkaline Cu-TEA solution. 16 In the copper-plating solution containing HEDPA in the pH range 9-10,…”

Section: Resultsmentioning

confidence: 99%

Mechanisms of Triethanolamine on Copper Electrodeposition from 1-Hydroxyethylene-1,1-diphosphonic Acid Electrolyte

Zheng¹,

Chen²,

Cai³

et al. 2017

J. Electrochem. Soc.

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The effect of triethanolamine (TEA) as a second ligand was studied on the electrodeposition of copper in 1-hydroxyethylene-1,1-diphosphonic acid (HEDPA) electrolyte. The electrochemical behavior of copper deposition was investigated by cyclic voltammetry and electrochemical impedance spectroscopy. The introduction of TEA suppresses the electrodeposition of the copper and promotes the dissolution of copper anode, resulting in fine grains and smooth bright deposits. The “Coordination–Adsorption” theory was proposed to explain the mechanism of action of TEA. The introduction of TEA in the HEDPA electrolyte induces the formation of the CuTEA(OH)2 coordination compounds. The formed CuTEA(OH)2 coordination compounds adsorb on the electrode surface and inhibit the growth of the copper crystal nucleus.

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“…Similar results were observed by Calderón et al during copper electrodeposition from an alkaline Cu-TEA solution. 16 In the copper-plating solution containing HEDPA in the pH range 9-10,…”

Section: Resultsmentioning

confidence: 99%

Mechanisms of Triethanolamine on Copper Electrodeposition from 1-Hydroxyethylene-1,1-diphosphonic Acid Electrolyte

Zheng¹,

Chen²,

Cai³

et al. 2017

J. Electrochem. Soc.

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“…Despite the high toxicity of cyanides and the strict maintenance control, the baths have been widely used in the production of brass alloy coatings [ 7 ]. There are many reports describing a possibility of the electrodeposition of Cu-Zn alloys in cyanide-free baths, e.g., pyrophosphate [ 8 , 9 ], citrate [ 10 ], oxalate [ 11 ], tartrate [ 12 ], ethylenediaminetetraacetic acid (EDTA) [ 13 ], triethanolamine [ 14 ], ammonia [ 15 ], glucoheptonate [ 16 ], glutamate [ 17 ], and glycinate [ 18 ] baths. The electrodeposited brass may be used as a matrix in the brass-composite coatings.…”

Section: Introductionmentioning

confidence: 99%

Electrodeposition of Copper and Brass Coatings with Olive-Like Structure

et al. 2021

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One method of creating a brass coating is through electrodeposition, which is most often completed in cyanide galvanic baths. Due to their toxicity, many investigations focused on the development of more environmentally friendly alternatives. The purpose of the study was to explore a new generation of non-aqueous cyanide-free baths based on 1-ethyl-3-methylimidazolium acetate ionic liquids. The study involved the formation of copper, zinc, and brass coatings. The influence of the bath composition, cathodic current density, and temperature was determined. The obtained coatings were characterized in terms of their morphology, chemical composition, phase composition, roughness, and corrosion resistance. It was found that the structure of the obtained coatings is strongly dependent on the process parameters. The three main structure types observed were as follows: fine-grained, porous, and olive-like. To the best knowledge of the authors, it is the first time the olive-like structure was observed in the case of an electrodeposited coating. The Cu-Zn coatings consisted of 19–96 at. % copper and exhibited relatively good corrosion resistance. A significant improvement of corrosion properties was found in the case of copper and brass coatings with the olive-like structure.

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“…Despite the high toxicity of cyanides and the strict maintenance control, the baths have been widely used in the production of brass alloy coatings [5]. There are many reports describing a possibility of electrodeposition of Cu-Zn alloys in cyanide-free baths, e.g., pyrophosphate [6,7], citrate [8], oxalate [9], tartrate [10], EDTA [11], triethanolamine [12], ammonia [13], glucoheptonate [14], glutamate [15] and glycinate [16] baths. The electrodeposited brass may be used as a matrix in the brass-composite coatings.…”

Section: Introductionmentioning

confidence: 99%

Electrodeposition of Copper and Brass Coatings with Olive-like Structure

Maciej¹,

Łatanik²,

Sowa³

et al. 2021

Preprint

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One method of creating a brass coating is through electrodeposition, which is most often completed in cyanide galvanic baths. Because of the toxicity of cyanides, many are working on the development of cyanide-free baths, which are promising but not satisfactory to replace the classic methods. The purpose of the study was to explore a new generation of non-aqueous cyanide-free baths based on 1-ethyl-3-methylimidazolium acetate ionic liquids. The study involved the formation of copper, zinc, and brass coatings. The influence of the bath composition, cathodic current density, and temperature was determined. The obtained coatings were characterized by their morphology, chemical composition, roughness, and corrosion resistance. It was found that the structure of the obtained coatings is strongly dependent on the process parameters. The three main structures observed were fine-grained, porous, and olive-like. To the best knowledge of the authors, it is the first time the olive-like structure was observed in the case of an electrodeposited coating. The Cu-Zn coatings consisted of 19–96 at.% copper and exhibited relatively strong corrosion resistance. High improvement of corrosion properties was found in the case of copper and brass coatings with an olive-like structure.

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Study of the effect of Triethanolamine as a chelating agent in the simultaneous electrodeposition of copper and zinc from non-cyanide electrolytes

Cited by 40 publications

References 18 publications

Mechanisms of Triethanolamine on Copper Electrodeposition from 1-Hydroxyethylene-1,1-diphosphonic Acid Electrolyte

Mechanisms of Triethanolamine on Copper Electrodeposition from 1-Hydroxyethylene-1,1-diphosphonic Acid Electrolyte

Electrodeposition of Copper and Brass Coatings with Olive-Like Structure

Electrodeposition of Copper and Brass Coatings with Olive-like Structure

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