Development of thin electrode layers by spray coating for solid oxide cells / Marijke Jacobs in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 1 (01/2023)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 20, N° 1 (01/2023) . - p. 41-50 Titre : Development of thin electrode layers by spray coating for solid oxide cells Type de document : texte imprimé Auteurs : Marijke Jacobs, Auteur ; Leif Olav Josang, Auteur ; Vijay Rangasamy, Auteur ; Vesna Middelkoop, Auteur Année de publication : 2023 Article en page(s) : p. 41-50 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Caractérisation Cellules à oxyde solide Couches minces Dépôt par pulvérisation Electrodes Granulométrie Poudres Revêtements inorganiques Index. décimale : 667.9 Revêtements et enduits Résumé : This study investigates the innovative use of a deposition technique, spray coating, for the fabrication of optimal thicknesses of solid oxide cell (SOC) layers on a range of SOC-compatible materials. The work has been carried out as part of the European KEROGREEN project that aims to utilize CO2 into sustainable aircraft kerosene. To separate the oxygen at higher operating temperatures after CO2 dissociation (plasmolysis) for creating a CO stream for Fischer–Tropsch downstream synthesis, a solid oxide electrolyzer cell is used. For the electrodes, the most promising LaSr-based perovskite materials were selected based on their electrical conductivity and ability to suppress the CO to CO2 back reaction at the CO2 (plasma) splitting side. The spray-coating suspension was adjusted to improve the adhesion and quality of the adjacent SOC layers. The electrode coatings showed good adhesion to the yttria-stabilized zirconia electrolyte, with a thickness of 10–15 µm and porosity of circa 45%. Prior to the electrodes, thin and dense interlayers were spray coated to prevent reactions between the electrolyte and the electrodes. These interlayers reduced the total electrodes resistance of the SOEC. The LaSr-based CO2 electrode powder and spray-coated SOEC remained stable in the CO2/CO/O2 environment. Note de contenu : - Deposition of electrode layers - Characterization of electrode layers - Stability test of CO2 electrode powder and spray-coated SOEC under CO2, CO, and O2 environment - Cell performance - Table 1 : An overview of different coating technologies and suspensions used in the literature to apply the electrolyte or electrode layers of solid oxide cells - Table 2 : The particle size distribution of the LSCF, LSZT, and GDC powders before and after milling in solvent DOI : https://doi.org/10.1007/s11998-022-00671-5 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-022-00671-5.pdf?pdf=button Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38828 [article]

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