Original scientific paper

https://doi.org/10.5562/cca3771

A Kinetic Study of Silver Electrodeposition Onto Pt Ultramicroelectrodes From Amoniacal Solutions

Jair A. Corona-Castro ; 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
José M. Sausedo-Solorio ; 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

Abstract

A kinetic study of the Ag electrodeposition onto Pt ultramicroelectrodes of 10, 15 and 25 µm of diameter from an aqueous solution containing AgNO3 1 mM + NH4NO3 0.1 M was conducted at overpotential conditions through potentiostatic studies. The analysis of the current density transients indicates the existence of two 2D nucleation and growth processes previous to the 3D nucleation and growth process.

This work is licensed under a Creative Commons Attribution 4.0 International License.

Keywords

silver; platinum; ultramicroelectrode; 2D nucleation; kinetics

Hrčak ID:

259265

URI

https://hrcak.srce.hr/259265

Publication date:

7.3.2021.

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