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Journal of Electrochemical Science and Engineering, Vol. 16 , 2026.

Original scientific paper

https://doi.org/10.5599/jese.2848

Study of the electroreduction process of indium ions from aqueous electrolyte

Nazakat Adil Aliyeva Mamedova orcid id orcid.org/0009-0006-2450-9997 ; Institute of Catalysis and Inorganic Chemistry named after acad. M. Nagiyev Ministry of Science and Education of the Republic of Azerbaijan
Vusala Asim Majidzade orcid id orcid.org/0000-0001-5639-3104 ; Institute of Catalysis and Inorganic Chemistry named after acad. M. Nagiyev Ministry of Science and Education of the Republic of Azerbaijan AZ 1143, ave. H. Javid 113, Baku, Azerbaijan *
Sevinj Rahim Mammadova orcid id orcid.org/0009-0006-9608-8976 ; Institute of Catalysis and Inorganic Chemistry named after acad. M. Nagiyev Ministry of Science and Education of the Republic of Azerbaijan
Asmat Nizami Azizova ; Azerbaijan Medical University Scientific Research Centre, A. Kasumzade st. 14, AZ1022, Baku, Azerbaijan
Akif Shikhan Aliyev orcid id orcid.org/0000-0001-5639-3104 ; Institute of Catalysis and Inorganic Chemistry named after acad. M. Nagiyev Ministry of Science and Education of the Republic of Azerbaijan
Dilgam Babir Tagiyev ; Institute of Catalysis and Inorganic Chemistry named after acad. M. Nagiyev Ministry of Science and Education of the Republic of Azerbaijan

* Corresponding author.

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Abstract

The work focuses on the mechanism of the electroreduction of indium ions in an aqueous electrolyte containing hydrochloric acid. The potential region for the electroreduction of indium ions on platinum (-0.3 to -1.5 V), nickel (-0.8 to -1.5 V), and Pt/In (-0.63 to -1.5 V) electrodes was determined by recording potentiodynamic polarization curves. The influence of several factors, including temperature, indium ion concentration, scan rate, and disk electrode rotation speed, on the electroreduction of indium was investigated. It was established that increasing both the temperature and the indium ion concentration in the electrolyte accelerates the reduction process. The process is primarily controlled by the diffusion of indium ions to the cathode surface. Furthermore, polarization curves were obtained using a rotating platinum disk electrode. The dependence of the current density on the electrode rotation speed at different potentials showed that the electroreduction process of indium ions in an aqueous electrolyte is accompanied by diffusion polarization.

Keywords

Electrochemical reduction; indium ions; electrodeposition; rotating disk electrode; diffusion kinetics

Hrčak ID:

344862

URI

https://hrcak.srce.hr/344862

Publication date:

10.12.2025.

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