Electrodeposition of a Au-Dy2O3 Composite Solid Oxide Fuel Cell Catalyst from Eutectic Urea/Choline Chloride Ionic Liquid
 In this research we have fabricated and tested Au/Dy2O3 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 s...
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| Format: | Article |
| Language: | English |
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MDPI AG
2012-12-01
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| Series: | Energies |
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| Online Access: | http://www.mdpi.com/1996-1073/5/12/5363 |
| _version_ | 1811262922336239616 |
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| author | Claudio Mele Benedetto Bozzini |
| author_facet | Claudio Mele Benedetto Bozzini |
| author_sort | Claudio Mele |
| collection | DOAJ |
| description |  In this research we have fabricated and tested Au/Dy2O3 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 Dy2O3 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 H2 oxidation and O2 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 Dy2O3 and an even better cathodic performance. |
| first_indexed | 2024-04-12T19:35:23Z |
| format | Article |
| id | doaj.art-89bfc935394c44ef8453a5795e5831a5 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-12T19:35:23Z |
| publishDate | 2012-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-89bfc935394c44ef8453a5795e5831a52022-12-22T03:19:13ZengMDPI AGEnergies1996-10732012-12-015125363537110.3390/en5125363Electrodeposition of a Au-Dy2O3 Composite Solid Oxide Fuel Cell Catalyst from Eutectic Urea/Choline Chloride Ionic LiquidClaudio MeleBenedetto Bozzini In this research we have fabricated and tested Au/Dy2O3 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 Dy2O3 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 H2 oxidation and O2 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 Dy2O3 and an even better cathodic performance.http://www.mdpi.com/1996-1073/5/12/5363DyAuDy2O3electrodepositioncompositesolid oxide fuel cell (SOFC)ureacholine chlorideionic liquid |
| spellingShingle | Claudio Mele Benedetto Bozzini Electrodeposition of a Au-Dy2O3 Composite Solid Oxide Fuel Cell Catalyst from Eutectic Urea/Choline Chloride Ionic Liquid Energies Dy Au Dy2O3 electrodeposition composite solid oxide fuel cell (SOFC) urea choline chloride ionic liquid |
| title | Electrodeposition of a Au-Dy2O3 Composite Solid Oxide Fuel Cell Catalyst from Eutectic Urea/Choline Chloride Ionic Liquid |
| title_full | Electrodeposition of a Au-Dy2O3 Composite Solid Oxide Fuel Cell Catalyst from Eutectic Urea/Choline Chloride Ionic Liquid |
| title_fullStr | Electrodeposition of a Au-Dy2O3 Composite Solid Oxide Fuel Cell Catalyst from Eutectic Urea/Choline Chloride Ionic Liquid |
| title_full_unstemmed | Electrodeposition of a Au-Dy2O3 Composite Solid Oxide Fuel Cell Catalyst from Eutectic Urea/Choline Chloride Ionic Liquid |
| title_short | Electrodeposition of a Au-Dy2O3 Composite Solid Oxide Fuel Cell Catalyst from Eutectic Urea/Choline Chloride Ionic Liquid |
| title_sort | electrodeposition of a au dy2o3 composite solid oxide fuel cell catalyst from eutectic urea choline chloride ionic liquid |
| topic | Dy Au Dy2O3 electrodeposition composite solid oxide fuel cell (SOFC) urea choline chloride ionic liquid |
| url | http://www.mdpi.com/1996-1073/5/12/5363 |
| work_keys_str_mv | AT claudiomele electrodepositionofaaudy2o3compositesolidoxidefuelcellcatalystfromeutecticureacholinechlorideionicliquid AT benedettobozzini electrodepositionofaaudy2o3compositesolidoxidefuelcellcatalystfromeutecticureacholinechlorideionicliquid |