Electrodeposition of a Au-Dy 2 O 3 Composite Solid Oxide Fuel Cell Catalyst from Eutectic Urea/Choline Chloride Ionic Liquid

Claudio Mele and Benedetto Bozzini
Additional contact information
Claudio Mele: Department of Innovation Engineering, University of Salento, via Monteroni, Lecce 73100, Italy
Benedetto Bozzini: Department of Innovation Engineering, University of Salento, via Monteroni, Lecce 73100, Italy

Energies, 2012, vol. 5, issue 12, 1-9

Abstract: In this research we have fabricated and tested Au/Dy 2 O 3 composites for applications as Solid Oxide Fuel Cell (SOFC) electrocatalysts. The material was obtained by a process involving electrodeposition of a Au-Dy alloy from a urea/choline chloride ionic liquid electrolyte, followed by selective oxidation of Dy to Dy 2 O 3 in air at high temperature. The electrochemical kinetics of the electrodeposition bath were studied by cyclic voltammetry, whence optimal electrodeposition conditions were identified. The heat-treated material was characterised from the morphological (scanning electron microscopy), compositional (X-ray fluorescence spectroscopy) and structural (X-ray diffractometry) points of view. The electrocatalytic activity towards H 2 oxidation and O 2 reduction was tested at 650 °C by electrochemical impedance spectrometry. Our composite electrodes exhibit an anodic activity that compares favourably with the only literature result available at the time of this writing for Dy 2 O 3 and an even better cathodic performance.

Keywords: Dy; Au; Dy 2 O 3; electrodeposition; composite; solid oxide fuel cell (SOFC); urea; choline chloride; ionic liquid (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2012
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/5/12/5363/pdf (application/pdf)
https://www.mdpi.com/1996-1073/5/12/5363/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:5:y:2012:i:12:p:5363-5371:d:22329

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().