Abstract
The telluryl ion (HTeO2 +) reduction process from acid sulfate medium, on in situ generated tellurium electrodes, was investigated by means of different electrochemical techniques. The kinetic study revealed the existence of two Tafel slopes, thus indicating that the deposition mechanism changes with the applied potential and the kinetic parameter values pointing to this process is irreversible at 25 °C. Moreover, the HTeO2 + electrochemical reduction is preceded by adsorption of the electroactive species on the electrode surface. In addition, the activation energies for both the activation and the diffusion processes were evaluated.
Author information
Authors and Affiliations
Additional information
Electronic Publication
Rights and permissions
About this article
Cite this article
Montiel-Santillán, T., Solorza, O. & Sánchez, H. Electrochemical research on tellurium deposition from acid sulfate medium. J Solid State Electrochem 6, 433–442 (2002). https://doi.org/10.1007/s10008-002-0268-5
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10008-002-0268-5