6533b838fe1ef96bd12a52f0
RESEARCH PRODUCT
Growth and Characterization of Anodic Films on Scandium
F. Di QuartoF. MuratoreMonica Santamariasubject
Materials scienceRenewable Energy Sustainability and the EnvironmentInorganic chemistrychemistry.chemical_elementCondensed Matter Physicsanodic films scandiumelectrochemical characterization photoelectrochemical characterization capacitance measurementsSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsAnodeCharacterization (materials science)Settore ING-IND/23 - Chimica Fisica ApplicatachemistryMaterials ChemistryElectrochemistryScandiumdescription
The anodic behavior of Sc in a slightly alkaline aqueous solution is studied. Electrochemical and capacitance measurements suggest that passive films can be formed on the scandium surface under a high electric field. The formation of these layers occurs at low faradaic efficiency due to oxygen evolution. Photoelectrochemical experiments suggest the formation of a barrier layer with a thickness high enough to hinder external electron photoemission processes and allow the estimation of the bandgap of the films as a function of their formation voltage. The estimated bandgap values were lower than that reported for Sc2O3, suggesting the formation of hydrated phases and/or of a strongly oxygen deficient oxide
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-11-13 | Journal of The Electrochemical Society |