Synthesis and characterization of electrodeposited samaria and samaria-doped ceria thin films
| Autor: | Oleg Lupan, Virginie Lair, Armelle Ringuedé, Lj.S. Živković |
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| Rok vydání: | 2011 |
| Předmět: |
Materials science
Nanostructure Scanning electron microscope General Chemical Engineering Oxide Mineralogy chemistry.chemical_element 02 engineering and technology 010402 general chemistry 01 natural sciences symbols.namesake chemistry.chemical_compound Electrodeposition Cathodic electrodeposition Electrochemistry Thin film SOFC Samaria (Sm2O3) Doping 021001 nanoscience & nanotechnology 0104 chemical sciences Samarium Chemical engineering chemistry X-ray crystallography Samaria-doped ceria (SDC) symbols Solid oxide fuel cell 0210 nano-technology Raman spectroscopy |
| Zdroj: | Electrochimica Acta |
| Popis: | Samaria (Sm2O3) and samaria-doped ceria (SDC) films are electrochemically deposited on stainless steel in view of a potential use in solid oxide fuel cells. As it is possible to deposit separately pure ceria (CeO2) and pure samaria (Sm2O3) in similar conditions, SDC films were successfully obtained in one electrochemical conditions set. Thin films have been fabricated at low-temperature (30 degrees C) by applying a cathodic potential of -0.8 V/SCE, for 2 h. Structural and morphological properties of electrodeposited films have been studied by X-ray diffraction (XRD), scanning electron microscopy (SEM), techniques and Raman spectroscopy. Special attention has been focused on the Raman spectroscopy study to emphasize the effect of heat treatment and samarium doping. Despite cracks, single SDC phase was obtained crystallizing in a cubic symmetry. (C) 2011 Elsevier Ltd. All rights reserved. |
| Databáze: | OpenAIRE |
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