dc.date.accessioned | 2021-06-01T15:33:17Z | |
dc.date.available | 2021-06-01T15:33:17Z | |
dc.date.created | 2021-01-16T12:15:56Z | |
dc.date.issued | 2021 | |
dc.identifier.citation | Dayaghi, Amir Masoud Haugsrud, Reidar Stange, Marit Synnøve Sæverud Larring, Yngve Strandbakke, Ragnar Norby, Truls Eivind . Increasing the thermal expansion of proton conducting Y-doped BaZrO3 by Sr and Ce substitution. Solid State Ionics. 2021, 359 | |
dc.identifier.uri | http://hdl.handle.net/10852/86275 | |
dc.description.abstract | Proton conducting oxide electrolytes find potential application in proton ceramic fuel cells and electrolyzers operating at intermediate temperatures, e.g. 400–600 °C. However, state-of-the-art proton conducting ceramics based on Y-doped BaZrO3 (BZY) have lower thermal expansion coefficient (TEC) than most commonly applied or conceived supporting electrode structures, making the assembly vulnerable to degradation due to cracks or spallation. We have increased the TEC of 20 mol% Y-doped BZY (BZY20) by partially substituting Ba and Zr with Sr and Ce, respectively, to levels which still maintain the cubic structure and sufficiently minor n-type conduction; (Ba0.85Sr0.15)(Zr0.7Ce0.1Y0.2)O2.9 (BSZCY151020). High temperature XRD shows that this material has a cubic structure (space group ) in the temperature range of 25–1150 °C and a linear TEC of ~10 × 10−6 K−1, as compared to the ~8 × 10−6 K−1 for BZY. It exhibited a DC conductivity of ~5 mS cm−1 at 600 °C in wet H2. This electrolyte with increased TEC may find application in proton ceramic electrochemical cells in general and metal supported ones in particular. | |
dc.language | EN | |
dc.rights | Attribution 4.0 International | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.title | Increasing the thermal expansion of proton conducting Y-doped BaZrO3 by Sr and Ce substitution | |
dc.type | Journal article | |
dc.creator.author | Dayaghi, Amir Masoud | |
dc.creator.author | Haugsrud, Reidar | |
dc.creator.author | Stange, Marit Synnøve Sæverud | |
dc.creator.author | Larring, Yngve | |
dc.creator.author | Strandbakke, Ragnar | |
dc.creator.author | Norby, Truls Eivind | |
cristin.unitcode | 185,15,17,10 | |
cristin.unitname | Senter for Materialvitenskap og Nanoteknologi kjemi | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |
dc.identifier.cristin | 1872503 | |
dc.identifier.bibliographiccitation | info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Solid State Ionics&rft.volume=359&rft.spage=&rft.date=2021 | |
dc.identifier.jtitle | Solid State Ionics | |
dc.identifier.volume | 359 | |
dc.identifier.pagecount | 6 | |
dc.identifier.doi | https://doi.org/10.1016/j.ssi.2020.115534 | |
dc.identifier.urn | URN:NBN:no-88924 | |
dc.type.document | Tidsskriftartikkel | |
dc.type.peerreviewed | Peer reviewed | |
dc.source.issn | 0167-2738 | |
dc.identifier.fulltext | Fulltext https://www.duo.uio.no/bitstream/handle/10852/86275/1/Dayaghi%2Betal%2B2021.pdf | |
dc.type.version | PublishedVersion | |
cristin.articleid | 115534 | |
dc.relation.project | NFR/268010 | |