Effect of coatings on long term behaviour of a commercial stainless steel for solid oxide electrolyser cell interconnect application in H-2/H2O atmosphere
| Affiliation auteurs | !!!! Error affiliation !!!! |
| Titre | Effect of coatings on long term behaviour of a commercial stainless steel for solid oxide electrolyser cell interconnect application in H-2/H2O atmosphere |
| Type de publication | Journal Article |
| Year of Publication | 2014 |
| Auteurs | Ardigo M.R, Popa I., Chevalier S., Girardon P., Perry F., Laucournet R., Brevet A., Desgranges C. |
| Journal | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY |
| Volume | 39 |
| Pagination | 21673-21677 |
| Date Published | DEC 12 |
| Type of Article | Article |
| ISSN | 0360-3199 |
| Mots-clés | Ferritic steels, High temperature electrolysis, Hydrogen, Interconnects, Perovskite and spinel coatings |
| Résumé | K41X (AISI 441) stainless steel evidenced a high electrical conductivity after 3000 h ageing in H-2/H2O side when used as interconnect for solid oxide electrolyser cells (SOEC) working at 800 degrees C. Perovskite (La1-xSrxMnO3-delta) and spinel (CO3O4) oxides coatings were applied on the surface of the ferritic steel for ageing at 800 degrees C for 3000 h. Both coatings improved the behaviour of the steel and give interesting opportunities to use the K41X steel as interconnect for hydrogen production via high temperature steam electrolysis. Co3O4 reduced into Co leading to a very good Area Specific Resistance (ASR) parameter, 0.038 Omega cm(2). Despite a good ASR (0.06 Omega cm(2)), La1-xSrxMnO3-delta was less promising because it partially decomposed into MnO and La2O3 during ageing in H-2/H2O atmosphere. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved. |
| DOI | 10.1016/j.ijhydene.2014.07.058 |