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Response surface modeling and optimization to study the influence of deposition parameters on the electrodeposition of Cu–Zn alloys in citrate medium

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Abstract

Copper–zinc alloy coatings were deposited on mild steel substrates using sodium citrate electrolytes at room temperature and under direct current. For the bath composition studied, factorial design was used to verify the influence of deposition parameters, such as current density and mechanical stirring, on the cathodic efficiency, the contents of copper and zinc, and the amount of hydrogen evolution. Moreover, the four responses were simultaneously studied by using an optimization methodology. The results suggest that the optimum point for reaching good quality copper–zinc alloy deposits from the proposed citrate electrolytes are 29 A m−2 and 247 rpm for bath 3 and 13 A m−2 and 67 rpm for bath 4. Applying these conditions, a yellow-reddish coating was obtained from bath 3, while a bright red deposit was produced from bath 4.

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Acknowledgments

The authors thank FAPERJ and UERJ for financial support.

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Authors and Affiliations

  1. Departamento de Química Analítica, Instituto de Química, Universidade do Estado do Rio de Janeiro, Rua São Francisco Xavier, 524, Maracana, 20559-900, RJ, Brazil

    F. B. A. Ferreira, F. L. G. Silva, A. S. Luna, D. C. B. Lago & L. F. Senna

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  1. F. B. A. Ferreira
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  2. F. L. G. Silva
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  3. A. S. Luna
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  4. D. C. B. Lago
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  5. L. F. Senna
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Correspondence to L. F. Senna.

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Ferreira, F.B.A., Silva, F.L.G., Luna, A.S. et al. Response surface modeling and optimization to study the influence of deposition parameters on the electrodeposition of Cu–Zn alloys in citrate medium. J Appl Electrochem 37, 473–481 (2007). https://doi.org/10.1007/s10800-006-9278-9

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  • DOI: https://doi.org/10.1007/s10800-006-9278-9

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