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| Home > Publications database > Y and Mn substituted BaZrO3 ceramics: material properties as a function of the substituents concentration > print |
| 001 | 902059 | ||
| 005 | 20240708132704.0 | ||
| 037 | _ | _ | |a FZJ-2021-04007 |
| 041 | _ | _ | |a English |
| 100 | 1 | _ | |a Ivanova, Mariya |0 P:(DE-Juel1)129617 |b 0 |e Corresponding author |u fzj |
| 111 | 2 | _ | |a Solid State Proton Conductors 2020 |g SSPC-20 |c online |d 2021-09-27 - 2021-10-01 |w Germany |
| 245 | _ | _ | |a Y and Mn substituted BaZrO3 ceramics: material properties as a function of the substituents concentration |
| 260 | _ | _ | |c 2021 |
| 336 | 7 | _ | |a Conference Paper |0 33 |2 EndNote |
| 336 | 7 | _ | |a Other |2 DataCite |
| 336 | 7 | _ | |a INPROCEEDINGS |2 BibTeX |
| 336 | 7 | _ | |a conferenceObject |2 DRIVER |
| 336 | 7 | _ | |a LECTURE_SPEECH |2 ORCID |
| 336 | 7 | _ | |a Conference Presentation |b conf |m conf |0 PUB:(DE-HGF)6 |s 1636460612_21290 |2 PUB:(DE-HGF) |x After Call |
| 500 | _ | _ | |a Key words: mixed proton-electronic ceramic conductors, proton conducting ceramic cells, ceramic membranes for H2 separation, B-side double substituted BaZrO3, A(II)B(IV)O3 perovskites, BaZr0.8Y0.2-xMnxO3-δ, NEXAFS, QENS |
| 520 | _ | _ | |a Innovations in material science are the key element for solving technological challenges. Various energy and environmental applications require designing materials with tailored compositions, microstructures and specific target-oriented performance. Y and Mn co-substituted BaZrO3, e.g. BaZr0.85Y0.15Mn0.05O3-δ (BZYM5), has previously attracted attention as a membrane material for H2 separation from gas mixture due to its mixed proton-electron conductivity leading to appreciable levels of H2-flux at elevated temperatures and its good thermo-chemical stability under reducing environments. In the present work, we developed ceramic materials within the BaZr0.8Y0.2-xMnxO3-δ series, where x =0.02, 0.05, 0.10, and systematically studied their functional properties in dependence of the Y-to-Mn ratio, including thermal behaviour, hydration and electrical properties. In addition to that, near edge X-ray absorption fine structure spectra (NEXAFS) in the vicinity of O K-edge and Mn L2,3-edges was carried out for selected BZYM specimens to collect information on oxidation states and surrounding symmetry of Mn atoms in surface- and bulk- sensitive modes. Finally, we studied proton diffusion in hydrated BZYM samples using quasi-elastic neutron scattering (QENS). Two distinct dynamic processes were observed at temperatures above 300 °C: one faster more localized process and another slower long-range diffusion process. The long-range diffusion has clear characteristics of jump-diffusion. We will present a model for atomic scale proton diffusion in these materials, and we will further discuss how Mn doping influences the proton diffusion in these materials. |
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| 536 | _ | _ | |a Verbundvorhaben ProtOMem: Entwicklung von protonenleitenden Membranen mit optimierter Mikrostruktur und verbesserten Transporteigenschaften für Energie- und Wasserstoffseparationsanwendungen (03SF0537A) |0 G:(BMBF)03SF0537A |c 03SF0537A |x 1 |
| 650 | 2 | 7 | |a Materials Science |0 V:(DE-MLZ)SciArea-180 |2 V:(DE-HGF) |x 0 |
| 650 | 1 | 7 | |a Energy |0 V:(DE-MLZ)GC-110 |2 V:(DE-HGF) |x 0 |
| 700 | 1 | _ | |a Balaguer, Maria |0 P:(DE-Juel1)161336 |b 1 |
| 700 | 1 | _ | |a Jalarvo, Niina |0 P:(DE-Juel1)143752 |b 2 |
| 700 | 1 | _ | |a Fantin, Andrea |0 P:(DE-Juel1)161352 |b 3 |
| 700 | 1 | _ | |a Menzler, Norbert H. |0 P:(DE-Juel1)129636 |b 4 |u fzj |
| 700 | 1 | _ | |a Guillon, Olivier |0 P:(DE-Juel1)161591 |b 5 |u fzj |
| 909 | C | O | |o oai:juser.fz-juelich.de:902059 |p VDB |
| 910 | 1 | _ | |a Forschungszentrum Jülich |0 I:(DE-588b)5008462-8 |k FZJ |b 0 |6 P:(DE-Juel1)129617 |
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| 913 | 1 | _ | |a DE-HGF |b Forschungsbereich Energie |l Materialien und Technologien für die Energiewende (MTET) |1 G:(DE-HGF)POF4-120 |0 G:(DE-HGF)POF4-121 |3 G:(DE-HGF)POF4 |2 G:(DE-HGF)POF4-100 |4 G:(DE-HGF)POF |v Photovoltaik und Windenergie |9 G:(DE-HGF)POF4-1213 |x 0 |
| 914 | 1 | _ | |y 2021 |
| 920 | _ | _ | |l yes |
| 920 | 1 | _ | |0 I:(DE-Juel1)IEK-1-20101013 |k IEK-1 |l Werkstoffsynthese und Herstellungsverfahren |x 0 |
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| 981 | _ | _ | |a I:(DE-Juel1)IMD-2-20101013 |
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