High Oxide-Ion Conductivity in a Hexagonal Perovskite-Related Oxide Ba7 Ta3.7 Mo1.3 O20.15 with Cation Site Preference and Interstitial Oxide Ions.
Sign Up to like & getrecommendations! Published in 2021 at "Small"
DOI: 10.1002/smll.202106785
Abstract: Solid oxide-ion conductors are crucial for enabling clean and efficient energy devices such as solid oxide fuel cells. Hexagonal perovskite-related oxides have been placed at the forefront of high-performance oxide-ion conductors, with Ba7 Nb4- x… read more here.
Keywords: mo1; ta3 mo1; oxide ion; mo1 o20 ... See more keywords
Intermediate-temperature conductivity of Al3+-doped Na0.5Bi0.49TiO3−δ lead-free oxide-ion-conductor solid electrolytes
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Materials Science: Materials in Electronics"
DOI: 10.1007/s10854-019-02054-w
Abstract: In this work, to increase the intermediate-temperature oxide-ion conductivity of Na0.5Bi0.49TiO3−δ lead-free oxide-ion-conductor solid electrolytes, Al3+ with smaller ion radius is introduced to replace Ti4+ at the B site. The experimental results show that Al3+… read more here.
Keywords: oxide ion; conductivity; ion; na0 5bi0 ... See more keywords
Density functional theory-based ab initio molecular dynamics simulation of ionic conduction in N-/F-doped ZrO2 under epitaxial strain
Sign Up to like & getrecommendations! Published in 2018 at "Computational Materials Science"
DOI: 10.1016/j.commatsci.2018.07.038
Abstract: Abstract In this study, we investigated oxide ion conduction in N-/F-doped ZrO2 systems under tensile epitaxial strain by ab initio molecular dynamics (MD) simulations. In our previous study, we discussed the effects of lattice strain,… read more here.
Keywords: oxide ion; conduction doped; zro2; doped zro2 ... See more keywords
Flash phenomena in lime-stabilised zirconia oxide ion conductor
Sign Up to like & getrecommendations! Published in 2020 at "Energy Reports"
DOI: 10.1016/j.egyr.2020.03.008
Abstract: Abstract Flash sintering is a novel technique that allows a decrease in the sintering time (from hours to seconds) and furnace temperature for the densification of ceramics. In order to find out if calcia-stabilised zirconia… read more here.
Keywords: oxide ion; zirconia oxide; phenomena lime; stabilised zirconia ... See more keywords
Characterization of AE(TM)2Bi2O9 (AE: Ca, Sr, Ba; TM: Nb, Ta) as oxide ion conductors
Sign Up to like & getrecommendations! Published in 2021 at "Journal of The European Ceramic Society"
DOI: 10.1016/j.jeurceramsoc.2020.10.028
Abstract: Abstract Bismuth-based oxides (AE(TM)2Bi2O9, AE: Ca, Sr, Ba; TM: Nb, Ta), including SrTa2Bi2O9, SrNb2Bi2O9, BaNb2Bi2O9, and CaTa2Bi2O9 were synthesized via a conventional solid-state reaction, and their ionic transport properties were investigated. All the materials are… read more here.
Keywords: oxide ion; characterization 2bi2o9; ion conductors; 2bi2o9 oxide ... See more keywords
Defined purge gas composition stabilizes molten nitrate salt - Experimental prove and thermodynamic calculations
Sign Up to like & getrecommendations! Published in 2020 at "Solar Energy"
DOI: 10.1016/j.solener.2020.09.041
Abstract: Abstract Thermal energy storage systems are integrated in concentrating solar power plants to improve the flexibility of the electricity generation. Commonly, the liquid storage material Solar Salt, a nitrate salt mixture, is applied to transport… read more here.
Keywords: oxide ion; salt; nitrate salt; gas ... See more keywords
Oxide Ion and Proton Conductivity in Highly Oxygen-Deficient Cubic Perovskite SrSc0.3Zn0.2Ga0.5O2.4
Sign Up to like & getrecommendations! Published in 2020 at "Chemistry of Materials"
DOI: 10.1021/acs.chemmater.0c01378
Abstract: A series of Zn-substituted compounds, Sr2Sc1–xZnxGaO5–0.5x, based on the brownmillerite-type oxide ion conductor Sr2ScGaO5 have been synthesized, and a single-phase region has been identified at 0.... read more here.
Keywords: oxide ion; highly oxygen; ion; ion proton ... See more keywords
Proton and Oxide Ion Conductivity in Palmierite Oxides
Sign Up to like & getrecommendations! Published in 2022 at "Chemistry of Materials"
DOI: 10.1021/acs.chemmater.2c01218
Abstract: Solid proton and oxide ion conductors have key applications in several hydrogen-based and energy-related technologies. Here, we report on the discovery of significant proton and oxide ion conductivity in palmierite oxides A3V2O8 (A = Sr,… read more here.
Keywords: palmierite oxides; proton; conductivity; proton oxide ... See more keywords
First-Principles Selection of Solute Elements for Er-Stabilized Bi2O3 Oxide-Ion Conductor with Improved Long-Term Stability at Moderate Temperatures
Sign Up to like & getrecommendations! Published in 2017 at "Chemistry of Materials"
DOI: 10.1021/acs.chemmater.7b00846
Abstract: Quality oxide-ion conductors are essential for clean-energy applications. Rare-earth-stabilized bismuth sesquioxide, δ-Bi2O3, exhibits a much greater oxide-ion conductivity at high temperatures than commonly used ZrO2- or CeO2-based electrolytes, but it suffers from serious conductivity degradation… read more here.
Keywords: oxide ion; long term; moderate temperatures; ion ... See more keywords
Variable Temperature Neutron Diffraction Study of the Oxide Ion Conductor Ba3VWO8.5.
Sign Up to like & getrecommendations! Published in 2022 at "Inorganic chemistry"
DOI: 10.1021/acs.inorgchem.1c03354
Abstract: Ba3VWO8.5 is an oxide ion conductor with a bulk conductivity of 5.0 × 10-5 S cm-1 at 600 °C. Ba3VWO8.5 is anomalous to the other Ba3M'M″O8.5 (M' = Nb; M″ = Mo, W) oxide ionic… read more here.
Keywords: variable temperature; ba3vwo8; temperature neutron; site ... See more keywords
Simultaneous Reduction of Proton Conductivity and Enhancement of Oxide-Ion Conductivity by Aliovalent Doping in Ba7Nb4MoO20.
Sign Up to like & getrecommendations! Published in 2022 at "Inorganic chemistry"
DOI: 10.1021/acs.inorgchem.2c00671
Abstract: Hexagonal perovskite-related oxides have garnered a great deal of research interest because of their high oxide-ion conductivity at intermediate temperatures, with Ba7Nb4MoO20 being a notable example. However, concomitant proton conduction in Ba7Nb4MoO20 may cause a… read more here.
Keywords: proton conductivity; oxide ion; ion conductivity; conductivity ... See more keywords