Issue 42, 2020
From the journal:

Physical Chemistry Chemical Physics

Indium electrodeposition from indium(iii) methanesulfonate in DMSO†

Wouter Monnens, ORCID logo a   Clio Deferm, ORCID logo b   Koen Binnemans ORCID logo b  and  Jan Fransaer ORCID logo *a  

* Corresponding authors

a KU Leuven, Department of Materials Engineering, Kasteelpark Arenberg 44, bus 2450, B-3001 Heverlee, Belgium
E-mail: Jan.fransaer@kuleuven.be

b KU Leuven, Department of Chemistry, Celestijnenlaan 200F, Bus 2404, B-3001 Heverlee, Belgium

Abstract

The electrochemical behavior and electrodeposition of indium was investigated at 26 °C and 160 °C from a solution composed of indium(III) methanesulfonate and dimethylsulfoxide (DMSO). Indium(III) methanesulfonate was synthesized from indium(III) oxide and methanesulfonic acid (MSA). Cyclic voltammetry, quartz crystal microbalance measurements and rotating ring disk electrode experiments indicated that reduction of indium(III) to both indium(I) and indium(0) occurs. Yet, reduction to metallic indium was found to be the predominant process. Deposited indium could be stripped to indium(I). This unstable species disproportionated to indium(III) and indium(0), leading to the formation of micron-sized metallic indium particles in the electrolyte. At 26 °C, indium deposited on glassy carbon as smooth, flat films whereas at 160 °C, it deposits as droplets.

Graphical abstract: Indium electrodeposition from indium(iii) methanesulfonate in DMSO

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Article information

DOI
https://doi.org/10.1039/D0CP03277H
Article type
Paper
Submitted
18 Jun 2020
Accepted
11 Sep 2020
First published
22 Oct 2020
This article is Open Access
Creative Commons BY-NC license

Phys. Chem. Chem. Phys., 2020,22, 24526-24534

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Indium electrodeposition from indium(III) methanesulfonate in DMSO

W. Monnens, C. Deferm, K. Binnemans and J. Fransaer, Phys. Chem. Chem. Phys., 2020, 22, 24526 DOI: 10.1039/D0CP03277H

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