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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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Martin, Christophe, Louis
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2018Anisotropic sintering behavior of freeze-cast ceramics by optical dilatometry and discrete-element simulationscitations
- 2018Design of strain tolerant porous microstructures – A case for controlled imperfectioncitations
- 2017Fast in situ 3D nanoimaging: a new tool for dynamic characterization in materials sciencecitations
- 2016Effect of Macropore Anisotropy on the Mechanical Response of Hierarchically Porous Ceramicscitations
- 2016Rational design of hierarchically nanostructured electrodes for solid oxide fuel cellscitations
- 2015Effective transport properties of 3D multi-component microstructures with interface resistancecitations
- 2015Three dimensional analysis of Ce0.9Gd0.1O1.95–La0.6Sr0.4Co0.2Fe0.8O3−δ oxygen electrode for solid oxide cellscitations
- 2011Microstructure of porous composite electrodes generated by the discrete element methodcitations
- 2007Micromodeling of Functionally Graded SOFC Cathodescitations
- 2006Discrete modelling of the electrochemical performance of SOFC electrodescitations
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article
Three dimensional analysis of Ce0.9Gd0.1O1.95–La0.6Sr0.4Co0.2Fe0.8O3−δ oxygen electrode for solid oxide cells
Abstract
Notwithstanding the importance of materials, microstructure also plays a significant role in performances of solid oxide cells. X-ray nanotomography with a voxel size of 25 nm was used to image the microstructure of CGO-LSCF composite oxygen electrode obtained by electrostatic spray deposition (ESD). The stack of data was used to create a 3D model. Two volumes were selected from the 3D model and microstructural parameters like porosity, surface area, percolation path and tortuosity factor were computed to quantify the microstructure. The influence of the applied threshold values on the parameters was investigated. Comparison of these parameters with previously reported data has shown significant differences. The porosity of CGO-LSCF oxygen electrode varied from 67 to 87 vol.%. Such a high porosity level makes this ESD microstructure unique. The microstructural parameters were used to determine the electrode polarization by Adler-Lane-Steele model. Modeled polarization resistance was in an agreement with experimental data. (C) 2015 Elsevier Ltd. All rights reserved.