Study of the complexing agents effect in the copper non-cyanide baths


Electrochemical analyses were performed using cyclic voltammetry in order to analyze the effect of Ethylenediaminetetraacetic acid (EDTA), Triethanolamine (TEA), and Tartrate sodium potassium (SPT) as a complexing agent of Cu2+ ions and its influence on the composition for electrodeposited films. It was observed that EDTA increases cathodic overpotential for the reduction of Cu2+ ions, similar phenomenon were verified to TEA and SPT, however, when it was used a mixed between themselves the copper deposition potential was shifted to more positive value.

PASTRIÁNA, Fabián Andree Cerda; FONTESB, Isabelle Mayara Fraga; SILVA, Caroline Ferreira da; SANTOS, Celia Aparecida Lino dos; ALMEIDA, Neusvaldo Lira de, PANOSSIAN, Zehbour. Study of the complexing agents effect in the copper non-cyanide baths. In: INTERNATIONAL CORROSION CONGRESS, 21., AND THE INTERNATIONAL CORROSION MEETING, 8., 2021, São Paulo. (on-line). Proceedings on-line.. 3 p.

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