Croatica Chemica Acta, Vol. 94 No. 1, 2021.
Izvorni znanstveni članak
https://doi.org/10.5562/cca3757
Influence of Bitartrate Ion Concentration in the Copper Electrodeposition Onto a Polycrystalline Gold Electrode
Miguel Hernández
orcid.org/0000-0003-2649-8401
; Universidad Autónoma del Estado de Hidalgo. Academic Area of Chemistry. Carretera Pachuca-Tulancingo Km. 4.5 Mineral de la Reforma México
Giaan A. Álvarez-Romero
; Universidad Autónoma del Estado de Hidalgo. Academic Area of Chemistry. Carretera Pachuca-Tulancingo Km. 4.5 Mineral de la Reforma México
Margarita Rivera
; Instituto de Física, Universidad Nacional Autónoma de México, Ciudad de Mexico, 04510, México
Simplicio González-Montiel
; Universidad Autónoma del Estado de Hidalgo. Academic Area of Chemistry. Carretera Pachuca-Tulancingo Km. 4.5 Mineral de la Reforma México
Clara H. Rios-Reyes
; Universidad La Salle Pachuca. Calle Belisario Domínguez 202, Centro, 42000 Pachuca de Soto, Hgo., México
Luis H. Mendoza-Huizar
orcid.org/0000-0003-2373-4624
; Universidad Autónoma del Estado de Hidalgo. Academic Area of Chemistry. Carretera Pachuca-Tulancingo Km. 4.5 Mineral de la Reforma México
Sažetak
In 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.
This work is licensed under a Creative Commons Attribution 4.0 International License.
Ključne riječi
copper; acid bitartrate ions; kinetic; copper; electrodeposition
Hrčak ID:
259452
URI
Datum izdavanja:
28.6.2021.
Posjeta: 1.217 *