dc.creator | Danilov N., Lyagaeva J., Kasyanova A., Vdovin G., Medvedev D., Demin A., Tsiakaras P. | en |
dc.date.accessioned | 2023-01-31T07:50:19Z | |
dc.date.available | 2023-01-31T07:50:19Z | |
dc.date.issued | 2017 | |
dc.identifier | 10.1007/s11581-016-1961-1 | |
dc.identifier.issn | 09477047 | |
dc.identifier.uri | http://hdl.handle.net/11615/73063 | |
dc.description.abstract | The effect of oxygen and water vapor partial pressure on the total conductivity of the proton-conducting BaCe0.7Zr0.1Y0.2O3–δ material is investigated in the present work. Single-phase and dense ceramic materials have been successfully obtained using the citrate–nitrate synthesis method. The contributions of partial conductivities (hole, oxygen-ionic, protonic) are evaluated based on electrical and emf measurements. At 900 °C in air atmosphere, ionic and hole conductivities almost equivalently contribute to the total conductivity, while in reducing temperatures, the transport of the studied material becomes ionic; the predominant protonic transport (tH ≈ 1) realizes under wet hydrogen atmospheres at temperatures below 700 °C. Based on the measurements of total conductivity as a function of water vapor partial pressure, it is found that the increase of conductivity in reducing atmospheres is associated with the growth of proton conductivity. A non-monotonic change of total conductivity in oxidizing atmospheres is caused by the competing effects, namely decreasing the hole conductivity and increasing the protonic one. © 2017, Springer-Verlag Berlin Heidelberg. | en |
dc.language.iso | en | en |
dc.source | Ionics | en |
dc.source.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85008500271&doi=10.1007%2fs11581-016-1961-1&partnerID=40&md5=e557dd9d83c430161d792677a1d419e3 | |
dc.subject | Barium zirconate | en |
dc.subject | Ceramic materials | en |
dc.subject | Oxygen | en |
dc.subject | Partial pressure | en |
dc.subject | Perovskite | en |
dc.subject | BaCeO3 | en |
dc.subject | BaZrO3 | en |
dc.subject | Hydrogen atmosphere | en |
dc.subject | Oxidizing atmosphere | en |
dc.subject | Proton conducting materials | en |
dc.subject | Reducing atmosphere | en |
dc.subject | Reducing temperature | en |
dc.subject | Vapor partial pressure | en |
dc.subject | Water vapor | en |
dc.subject | Institute for Ionics | en |
dc.title | The effect of oxygen and water vapor partial pressures on the total conductivity of BaCe0.7Zr0.1Y0.2O3–Δ | en |
dc.type | journalArticle | en |