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Electrodeposition of gallium onto vitreous carbon

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Abstract

Gallium electrodeposition onto vitreous carbon was studied in chloride solution using potentiostatic and potentiodynamic techniques. The morphology and composition of the deposits were analysed by SEM/EDX. The effects of solution pH, applied potential and the hydrodynamic conditions on the electroreduction process were investigated. Results indicate that the reduction to Ga+1 species takes place at the lower overpotentials, while at high overpotentials gallium deposition occurs through progressive nucleation and growth under diffusion control. The influence of the simultaneous hydrogen evolution reaction on the electrodeposition process is discussed.

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Acknowledgements

The Secretaría de Ciencia y Técnica-UNS (PGI 24/M093/04) and the Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET-PIP02143/00) are gratefully acknowledged for the financial support.

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Authors and Affiliations

  1. Instituto de Ingeniería Electroquímica y Corrosión (INIEC), Departamento de Ingeniería Química, Universidad Nacional del Sur, Av. Alem 1253 , 8000, Bahia Blanca, Argentina

    D. O. Flamini, S. B. Saidman & J. B. Bessone

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  1. D. O. Flamini
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  2. S. B. Saidman
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  3. J. B. Bessone
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Corresponding author

Correspondence to S. B. Saidman.

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This paper is dedicated to the memory of Professor J. B. Bessone who died on 23rd April 2006

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Flamini, D.O., Saidman, S.B. & Bessone, J.B. Electrodeposition of gallium onto vitreous carbon . J Appl Electrochem 37, 467–471 (2007). https://doi.org/10.1007/s10800-006-9277-x

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  • DOI: https://doi.org/10.1007/s10800-006-9277-x

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