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Layered microstructures based on BaZr0.85Y0.15O3−δ by pulsed laser deposition for metal-supported proton ceramic electrolyser cells

Stefan, Elena; Stange, Marit Synnøve Sæverud; Denonville, Christelle; Larring, Yngve; Hildenbrand, Nicolas; Norby, Truls Eivind; Haugsrud, Reidar
Journal article; AcceptedVersion; Peer reviewed
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2017+Stefan+etal+JMS+thin+films.pdf (1.815Mb)
Year
2017
Permanent link
http://urn.nb.no/URN:NBN:no-65491

CRIStin
1482374

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  • Kjemisk institutt [928]
  • CRIStin høstingsarkiv [16955]
Original version
Journal of Materials Science. 2017, 52 (11), 6486-6497, DOI: http://dx.doi.org/10.1007/s10853-017-0884-1
Abstract
Planar metal-supported cell designs provide cost-effective scaling-up of solid oxide fuel cells and electrolysers. Here, we report on the fabrication of a BaZr0.85Y0.15O3−δ–NiO (BZY15–NiO) composite electrode and BaZr0.85Y0.15O3−δ (BZY15) proton-conducting electrolyte films on metal and ceramic substrates using pulsed laser deposition (PLD). The results demonstrate successful sequential deposition of porous electrode and dense electrolyte structure by PLD at moderate temperatures, without the need for subsequent high-temperature sintering. The decrease in roughness of the metal substrate used for deposition by spray-coating intermediary oxide layers had significant importance to the fabrication of functional layers as thin films. Crystalline porous BZY15–NiO and dense BZY15 films were sequentially deposited at high substrate temperature on metal supports (MS) with or without an electron-conducting barrier oxide layer, e.g. MS/(BZY15–Ni)/(BZY15–NiO)/BZY15 and MS/CeO2/(BZY15–NiO)/BZY15. The different microstructures for electrode and electrolyte were achieved with deposition steps at different substrate temperatures (800, 600 °C) and a gradual decrease in the pressure of O2 in the deposition chamber.

This is a post-peer-review, pre-copyedit version of an article published in Journal of Materials Science. The final authenticated version is available online at: http://dx.doi.org/10.1007/s10853-017-0884-1.
 
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