Indium electrodeposition from indium(iii) methanesulfonate in DMSO. Issue 42 (22nd October 2020)

• Record Type: Journal Article
• Authors: Monnens, Wouter; Deferm, Clio; Binnemans, Koen; Fransaer, Jan
• Is Part Of: Physical chemistry chemical physics. Volume 22:Issue 42(2020)
• Page Start: 24526
• Page End: 24534
• Publication Date: 2020-10-22
• Subjects: Chemistry, Physical and theoretical -- Periodicals; 541.3
• DOI: 10.1039/d0cp03277h
• Languages: English
• ISSNs: 1463-9076

Abstract

Abstract : The electrochemical investigation and electrodeposition of indium in a mixture of indium(iii ) methanesulfonate and DMSO. 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.