| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Dudek, Magdalena
AGH University of Krakow
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2020Samples of Ba1−xSrxCe0.9Y0.1O3−δ, 0 < x < 0.1, with Improved Chemical Stability in CO2-H2 Gas-Involving Atmospheres as Potential Electrolytes for a Proton Ceramic Fuel Cellcitations
- 2020Ionic Transport Properties of P2O5-SiO2 Glassy Protonic Composites Doped with Polymer and Inorganic Titanium-based Fillerscitations
- 2019Utilisation of methylcellulose as a shaping agent in the fabrication of Ba0.95Ca0.05Ce0.9Y0.1O3 proton-conducting ceramic membranes via the gelcasting methodcitations
- 2016Influence of the Organophilisation Process on Properties of the Bentonite Filler and Mechanical Properties of the Clay/Epoxy Nanocompositescitations
- 2016Some observations on the synthesis and electrolytic properties of (Ba1-xCax) (M0.9Y0.1)O3, M = Ce, Zr-based samples modified with calciumcitations
- 2013Synthetic preparation of proton conducting polyvinyl alcohol and TiO2-doped inorganic glasses for hydrogen fuel cell applicationscitations
Places of action
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article
Some observations on the synthesis and electrolytic properties of (Ba1-xCax) (M0.9Y0.1)O3, M = Ce, Zr-based samples modified with calcium
Abstract
<jats:title>Abstract</jats:title><jats:p>In this paper, the impact of partial substitution of calcium for barium in (Ba<jats:sub>1-x</jats:sub>Ca<jats:sub>x</jats:sub>) (M<jats:sub>0.9</jats:sub>Y<jats:sub>0.1</jats:sub>) O<jats:sub>3</jats:sub>, M = Ce, Zr on physicochemical properties of the powders and sintered samples was investigated. The powders, with various contents of calcium (x = 0, 0.02, 0.05, 0.1), were prepared by means of thermal decomposition of organometallic precursors containing EDTA. All of the BaCeO<jats:sub>3</jats:sub>-based powders synthesised at 1100 °C were monophasic with a rhombohedral structure, however, completely cubic BaZrO<jats:sub>3</jats:sub>-based solid solutions were obtained at 1200 °C. A study of the sinterability of BaZr<jats:sub>0.9</jats:sub>Y<jats:sub>0.1</jats:sub>O<jats:sub>3</jats:sub> and BaCe<jats:sub>0.9</jats:sub>Y<jats:sub>0.1</jats:sub>O<jats:sub>3</jats:sub>-based pellets was performed under non-isothermal conditions within a temperature range of 25 to 1200 °C. The partial substitution of barium for calcium in the (Ba<jats:sub>1-x</jats:sub>Ca<jats:sub>x</jats:sub>) (M<jats:sub>0.9</jats:sub>Y<jats:sub>0.1</jats:sub>) O<jats:sub>3</jats:sub>, M = Ce, Zr solid solution improved the sinterability of the samples in comparison to the initial BaCe<jats:sub>0.9</jats:sub>Y<jats:sub>0.1</jats:sub>O<jats:sub>3</jats:sub> or BaZr<jats:sub>0.9</jats:sub>Y<jats:sub>0.1</jats:sub>O<jats:sub>3</jats:sub>. The relative density of calcium-modified BaCe<jats:sub>0.9</jats:sub>Y<jats:sub>0.1</jats:sub>O<jats:sub>3</jats:sub>-based samples reached approximately 95 to 97 % after sintering at 1500 °C for 2 h in air. The same level of relative density was achieved after sintering calcium-modified BaZr<jats:sub>0.9</jats:sub>Y<jats:sub>0.1</jats:sub>O<jats:sub>3</jats:sub> at 1600 °C for 2 h. Analysis of the electrical conductivity from both series of investigated materials showed that the highest ionic conductivity, in air and wet 5 % H<jats:sub>2</jats:sub> in Ar, was attained for the compositions of x = 0.02 to 0.05 (Ba<jats:sub>1-x</jats:sub>Ca<jats:sub>x</jats:sub>)(M<jats:sub>0.9</jats:sub>Y<jats:sub>0.1</jats:sub>)O<jats:sub>3</jats:sub>, M = Zr, Ce. The oxygen reduction reaction on the interface Pt│BaM0.9Y0.1O3, M = Ce, Zr was investigated using Pt microelectrodes. Selected samples of (Ba<jats:sub>1-x</jats:sub>Ca<jats:sub>x</jats:sub>) (M<jats:sub>0.9</jats:sub>Y<jats:sub>0.1</jats:sub>)O<jats:sub>3</jats:sub>, M = Zr, Ce were tested as ceramic electrolytes in hydrogen-oxygen solid oxide fuel cells operating at temperatures of 700 to 850 °C.</jats:p>