In this work the suitability of 1:2 choline chloride/urea deep eutectic solvent (DES) for the electrodeposition of indium has been studied. During deposition, temperature was kept constant at 80°C in favor of mass transfer rate and to lower the viscosity of the solution as well. Voltammetric experiments showed typical overpotential governed nucleation of indium. It was also found with chronoamperometry that electrodeposition of indium at molybdenum electrode proceeds via instantaneous nucleation with diffusion controlled growth, while at gold electrode the deposition proceeds via progressive nucleation with diffusion-controlled growth. EDX analysis and XRD patterns revealed that the deposits were pure crystalline indium for all the cases. The deposits exhibited polygonal shaped grains at low current density and nodular morphology with rounded grains at higher current density.

Electrodeposition of indium from a deep eutectic solvent

BERNASCONI, ROBERTO;MAGAGNIN, LUCA
2015

Abstract

In this work the suitability of 1:2 choline chloride/urea deep eutectic solvent (DES) for the electrodeposition of indium has been studied. During deposition, temperature was kept constant at 80°C in favor of mass transfer rate and to lower the viscosity of the solution as well. Voltammetric experiments showed typical overpotential governed nucleation of indium. It was also found with chronoamperometry that electrodeposition of indium at molybdenum electrode proceeds via instantaneous nucleation with diffusion controlled growth, while at gold electrode the deposition proceeds via progressive nucleation with diffusion-controlled growth. EDX analysis and XRD patterns revealed that the deposits were pure crystalline indium for all the cases. The deposits exhibited polygonal shaped grains at low current density and nodular morphology with rounded grains at higher current density.
Choline; DES; Electrodeposition; Nucleation
File in questo prodotto:
File Dimensione Formato  
18Rahman.pdf

Accesso riservato

Descrizione: Articolo principale
: Publisher’s version
Dimensione 400.63 kB
Formato Adobe PDF
400.63 kB Adobe PDF   Visualizza/Apri
Electrodeposition of indium from a deep eutectic solvent_11311-987222_Magagnin.pdf

accesso aperto

: Post-Print (DRAFT o Author’s Accepted Manuscript-AAM)
Dimensione 381.64 kB
Formato Adobe PDF
381.64 kB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/987222
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 12
  • ???jsp.display-item.citation.isi??? 13
social impact