Producción Científica Profesorado

Influence of Bitartrate Ion Concentration in the Copper Electrodeposition Onto a Polycrystalline Gold Electrode



Mendoza Huizar, Luis Humberto

2021

Miguel Hernández, Giaan A. Álvarez-Romero, Margarita Rivera, Simplicio González-Montiel,Clara H. Rios-Reyes, Luis H. Mendoza-Huizar, Influence of Bitartrate Ion Concentration in theCopper Electrodeposition Onto a PolycrystallineGold Electrode. Croat. Chem. Acta 2021, 94(1) https://doi.org/10.5562/cca3757


Abstract


n the present work, the influence of the concentration of bitartrate ions (HT) on the copper electrodeposition process was analyzed. The study was carried out from an aqueous solution containing 0.001 M of CuX (where X = (NO3?)2 ,(Cl?)2, SO42?) and x M KHT (where x = 0.005 M, 0.01 M, and 0.015 M). From voltammetric and chronoamperometric studies, the results indicate that copper electrodeposition is a diffusion-controlled process. The current density transients were well described through a kinetic mechanism involving capacitive and faradaic contributions. The diffusion coefficient values of Cu1+ and Cu2+ result to be similar at the different concentration values of potassium bitartrate used in this work.






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