| 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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Djurado, Elisabeth
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (42/42 displayed)
- 2022Innovative architectured oxygen electrodes for IT-SOFC using electrostatic spray deposition
- 2022Nanostructured Si-based bioactive glass coatings by electrostatic spray deposition technique
- 2021Design of advanced one-step hydroxyapatite coatings for biomedical applications using the electrostatic spray depositioncitations
- 2021Coupling sol-gel with electrospray deposition: Towards nanotextured bioactive glass coatingscitations
- 2021Electrode Kinetics of Porous Ni-3YSZ Cermet Operated in Fuel Cell and Electrolysis Modes for Solid Oxide Cell Applicationcitations
- 2021One-step fabrication of single-phase hydroxyapatite coatings on Ti-alloy implants by electrostatic spray deposition: From microstructural investigation to in vitro studiescitations
- 2021Development of advanced bioactive glass-based coatings by electrostatic spray deposition
- 2020Chemical and morphological properties of electrosprayed calcium phosphate coatings
- 2020Advanced Nanostructured materials for electrical and biological applications using Electrostatic Spray Deposition
- 2019Design of calcium phosphate coatings for biomedical applications using the electrostatic spray deposition technique
- 2019Deposition of calcium phosphate coatings using the electrostatic spray deposition technique
- 2019Fabrication of innovative calcium phosphate bioceramics using the electrostatic spray deposition technique.
- 2019Fabrication of innovative calcium phosphate bioceramics using the electrostatic spray deposition technique
- 2019Improving the electrochemical performance of LaPrNiO4+δ as an oxygen electrode for intermediate temperature solid oxide cells by varying the architectural designcitations
- 2017A-site order-disorder in the NdBaMn2O5+delta SOFC electrode material monitored in situ by neutron diffraction under hydrogen flowcitations
- 2017Influence of sintering temperature on morphology and electrochemical performance of LSCF/GDC composite films as efficient cathode for SOFCcitations
- 2016Mechanical behavior of Ce 0.9 Gd 0.1 O 1.95 -La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3−δ oxygen electrode with a coral microstructure for solid oxide fuel cell and solid oxide electrolyzer cellcitations
- 2016Rational design of hierarchically nanostructured electrodes for solid oxide fuel cellscitations
- 2015Three dimensional analysis of Ce0.9Gd0.1O1.95–La0.6Sr0.4Co0.2Fe0.8O3−δ oxygen electrode for solid oxide cellscitations
- 2013Microstructural and electrical characterizations of tungsten-doped La 2 Mo 2 O 9 prepared by spray pyrolysiscitations
- 2010Fluorescent organic nanocrystal confined in sol–gel matrix for bio-imagingcitations
- 2010Thermal ageing of nanostructured tetragonal zirconia ceramics: Characterization of interfacescitations
- 2010Atomic layer deposition of tantalum oxide thin films for their use as diffusion barriers in microelectronic devicescitations
- 2009Electrochemical characterization of nanostructured zirconiascitations
- 2009The synthesis and sintering behaviour of BaZr 0.9 Y 0.1 O 3− δ powders prepared by spray pyrolysiscitations
- 2009ESD and ALD Depositions of Ta[sub 2]O[sub 5] Thin Films Investigated as Barriers to Copper Diffusion for Advanced Metallizationcitations
- 2009ESD and ALD Depositions of Ta 2 O 5 Thin Films Investigated as Barriers to Copper Diffusion for Advanced Metallizationcitations
- 2008Blocking Effect in High Purity Nanostructured Cubic Zirconia Ceramicscitations
- 2008Blocking Effect in High Purity Nanostructured Cubic Zirconia Ceramicscitations
- 2008Microstructure Related Conductivity in La 2 Mo 2 O 9 Ceramicscitations
- 2008Microstructure Related Conductivity in La2Mo2O9 Ceramicscitations
- 2007Structural investigations of YSZ coatings prepared by DC magnetron sputteringcitations
- 2007Elaboration of Ta 2 O 5 Thin Films Using Electrostatic Spray Deposition for Microelectronic Applicationscitations
- 2006Dopant Segregation and Space Charge Effect in Nanostructured Tetragonal Zirconiacitations
- 2005Raman investigation of the O 2 , Pt/YSZ electrode under polarizationcitations
- 2005Initial Stages in Zirconia Coatings Using ESDcitations
- 2005YSZ electrolyte of anode-supported SOFCs prepared from sub micron YSZ powderscitations
- 2004Microstructural Investigations of Nanostructured La(Sr)MnO 3-δ Films Deposited by Electrostatic Spray Depositioncitations
- 2003Quantification of Chemical Pressure in Doped Nanostructured Zirconia Ceramicscitations
- 2003Structural changes of rare-earth-doped, nanostructured zirconia solid solutioncitations
- 2002Cold isostatic and explosive isodynamic compaction of Y-TZP nanoparticlescitations
- 2002Dopant size effect on structural and transport properties of nanometric and single-phased TZPcitations
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.