| 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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Thydén, Karl Tor Sune
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (20/20 displayed)
- 2018Deposition of highly oriented (K,Na)NbO3 films on flexible metal substratescitations
- 2016Effects of strong cathodic polarization of the Ni-YSZ interfacecitations
- 2016Comparison of ultramicrotomy and focused-ion-beam for the preparation of TEM and STEM cross section of organic solar cellscitations
- 2016Conductivity and structure of sub-micrometric SrTiO 3 -YSZ compositescitations
- 2016Conductivity and structure of sub-micrometric SrTiO3-YSZ compositescitations
- 2015Plasma properties during magnetron sputtering of lithium phosphorous oxynitride thin filmscitations
- 2015Fast mass interdiffusion in ceria/alumina compositecitations
- 2015Investigation of Novel Electrocatalysts for Metal Supported Solid Oxide Fuel Cells - Ru:GDCcitations
- 2014In situ surface reduction of a NiO-YSZ-alumina composite using scanning probe microscopycitations
- 2013Oxidation in ceria infiltrated metal supported SOFCs – A TEM investigationcitations
- 2013Oxidation in ceria infiltrated metal supported SOFCs – A TEM investigationcitations
- 2013Transmission Electron Microscopy Specimen Preparation Method for Multiphase Porous Functional Ceramicscitations
- 2013Transmission Electron Microscopy Specimen Preparation Method for Multiphase Porous Functional Ceramicscitations
- 2013Infiltrated SrTiO3:FeCr‐based Anodes for Metal‐Supported SOFCcitations
- 2013Infiltrated SrTiO 3 :FeCr‐based Anodes for Metal‐Supported SOFCcitations
- 2012Durable and Robust Solid Oxide Fuel Cells
- 2012Characterization of impregnated GDC nano structures and their functionality in LSM based cathodescitations
- 2011Modifications of interface chemistry of LSM–YSZ composite by ceria nanoparticlescitations
- 2008Microstructural degradation of Ni-YSZ anodes for solid oxide fuel cells
- 2006Degradation of conductivity and microstructure under thermal and current load in Ni-YSZ cermets for SOFC anodescitations
Places of action
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article
Conductivity and structure of sub-micrometric SrTiO3-YSZ composites
Abstract
Sub-micrometric composites of SrTiO3-YSZ (1:1 volume) and samples of SrTiO<sub>3</sub> were prepared by high temperature consolidation of precursors obtained by precipitation with NaOH. The structure development and morphology of the precursors were studied by XRD and SEM. The perovskite and fluorite phases in the composites are clearly formed at 600°C with no signs of reaction up to 1100°C; the nominally pure SrTiO<sub>3 </sub>can be formed at temperatures as low as 400°C. Composites with sub-micrometric grain sizes can be prepared successfully without reaction between the components, although a change in the cell parameter of the SrTiO<sub>3</sub> is attributed to the presence of Na. The consolidated composites were studied by impedance spectroscopy between 200 and 400°C and at a fixed temperature of 600°C with a scan in the partial pressure of oxygen. The composites did not exhibit high levels of ionic conductivity in the grain boundary nor the bulk. The conductivity of Na-free composites shows lower levels of conductivity than pure YSZ, while samples with Na showed increased conductivity. The conductivity of SrTiO<sub>3</sub> exhibited an enhancement attributed to p-type conductivity, although contributions from protons cannot be disregarded as some Na doping is present.