| People | Locations | Statistics |
|---|---|---|
| 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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Burriel, Mónica
Université Grenoble Alpes
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2024Optimizing YSZ Electrolyte Deposition via MOCVD for Enhanced Thin Film Solid Oxide Cells ; Optimisation de la déposition d'electrolyte de YSZ par MOCVD pour des cellules à oxydes solides en couche mince performantes
- 2024Tuning the synaptic properties of TiN/La2NiO4+δ/Pt memristive devices by post-deposition annealing
- 2024Impact of the La 2 NiO 4+δ Oxygen Content on the Synaptic Properties of the TiN/La 2 NiO 4+δ /Pt Memristive Devices
- 2024Impact of the La2NiO4+d oxygen content on the synaptic properties of the TiN/La2NiO4+d/Pt memristive devices
- 2024A self-assembled multiphasic thin film as an oxygen electrode for enhanced durability in reversible solid oxide cellscitations
- 2023Non-Volatile Bipolar TiN/LaMnO3/Pt Memristors with Optimized Performancecitations
- 2022A cobaltite-based thin film nanocomposite funcional layer wiht enhanced electrochemical stability for solid oxide cells
- 2022Nanostructured La 0.75 Sr 0.25 Cr 0.5 Mn 0.5 O 3 -Ce 0.8 Sm 0.2 O 2 Heterointerfaces as All-Ceramic Functional Layers for Solid Oxide Fuel Cell Applicationscitations
- 2022Tailored nano-columnar La2NiO4 cathodes for improved electrode performancecitations
- 2022Structural defects improve the memristive characteristics of epitaxial La$_{0.8}$Sr$_{0.2}$MnO$_ {3-delta}$ based devicescitations
- 2022Nanostructured La0.75Sr0.25Cr0.5Mn0.5O3–Ce0.8Sm 0.2O2 Heterointerfaces as All-Ceramic Functional Layers for Solid Oxide Fuel Cell Applicationscitations
- 2022La$_2$NiO$_{4+delta}$ ‐based memristive devices integrated on Si‐based substratescitations
- 2019Microscopic Mechanisms of Local Interfacial Resistive Switching in LaMnO 3+δcitations
- 2016Rational design of hierarchically nanostructured electrodes for solid oxide fuel cellscitations
- 2010Influence of the Microstructure on the High-Temperature Transport Properties of GdBaCo2O5.5+δ Epitaxial Filmscitations
- 2010BSCF epitaxial thin films: Electrical transport and oxygen surface exchangecitations
- 2008Electrical conductivity and oxygen exchange kinetics of La2NiO4+ thin films grown by chemical vapor depositioncitations
Places of action
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article
Rational design of hierarchically nanostructured electrodes for solid oxide fuel cells
Abstract
Understanding, controlling and optimizing the mechanisms of electrode reactions need to be addressed for high performance energy and storage conversion devices. Hierarchically structured porous films of mixed ionic electronic conductors (MIECs) and their composites with ionic conductors offer unique properties. However, correlating the intrinsic properties of electrode components to microstructural features remains a challenging task. Here, La0.6Sr0.4Co0.2Fe0.8O3-delta (LSCF) and La0.6Sr0.4Co0.2Fe0.8O3-delta: Ce0.9Gd0.1O2-delta (LSCF:CGO) composite cathodes with hierarchical porosity from nano to micro range are fabricated. The LSCF film exhibits exceptional electrode performance with area specific resistance values of 0.021 and 0.065 Omega cm(2) at 650 and 600 degrees C respectively, whereas LSCF:CGO composite is only slightly superior than pure LSCF below 450 degrees C. We report for the first time a numerical 3D Finite Element Model (FEM) comprising real micro/nanostructural parameters from 3D reconstructions into a simple geometry similar to experimentally observed columnar features. The model demonstrates that heterogeneities in porosity within the film thickness and percolation of the ionically conducting phase significantly impact bulk transport at low temperatures. Design guidelines relating performance to microstructure and bulk material properties in relation to experimental results are proposed. Our model has potential to be extended for rational design of larger, regular and heterogeneous microstructures. (C) 2016 Elsevier B.V. All rights reserved.