| 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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Kiebach, Wolff-Ragnar
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (38/38 displayed)
- 2022Fracture toughness of reactive bonded Co–Mn and Cu–Mn contact layers after long-term agingcitations
- 2022Torsional behaviour of a glass-ceramic joined alumina coated Crofer 22 APU steelcitations
- 2022Planar proton-conducting ceramic cells for hydrogen extractioncitations
- 2021High toughness well conducting contact layers for solid oxide cell stacks by reactive oxidative bondingcitations
- 2020Comparison of MnCo2O4 coated Crofer 22 H, 441, 430 as interconnects for intermediate-temperature solid oxide fuel cell stackscitations
- 2019Gd0.2Ce0.8O1.9/Y0.16Zr0.84O1.92 nanocomposite thin films for low temperature ionic conductivitycitations
- 2019Hydrothermal Synthesis, Characterization, and Sintering Behavior of Core-Shell Particles: A Principle Study on Lanthanum Strontium Cobaltite Coated with Nanosized Gadolinium Doped Ceriacitations
- 2018Zirconia nano-colloids transfer from continuous hydrothermal synthesis to inkjet printingcitations
- 2018Exploring the Processing of Tubular Chromite- and Zirconia-Based Oxygen Transport Membranescitations
- 2018A Ba-free sealing glass with a high CTE and excellent interface stability optimized for SOFC/SOEC stack applicationscitations
- 2017Stability and performance of robust dual-phase (ZrO 2 ) 0.89 (Y 2 O 3 ) 0.01 (Sc 2 O 3 ) 0.10 -Al 0.02 Zn 0.98 O 1.01 oxygen transport membranescitations
- 2017Modeling of Ni Diffusion Induced Austenite Formation in Ferritic Stainless Steel Interconnectscitations
- 2017Modeling of Ni Diffusion Induced Austenite Formation in Ferritic Stainless Steel Interconnectscitations
- 2017A Novel SOFC/SOEC Sealing Glass with a Low SiO2 Content and a High Thermal Expansion Coefficient
- 2017Enhanced densification of thin tape cast Ceria-Gadolinium Oxide (CGO) layers by rheological optimization of slurriescitations
- 2017Ceramic processing of tubular, multilayered oxygen transport membranes (Invited)
- 2017Investigation of a Spinel-forming Cu-Mn Foam as an Oxygen Electrode Contact Material in a Solid Oxide Cell Single Repeating Unitcitations
- 2017A Novel SOFC/SOEC Sealing Glass with a Low SiO2 Content and a High Thermal Expansion Coefficientcitations
- 2017A Novel SOFC/SOEC Sealing Glass with a Low SiO 2 Content and a High Thermal Expansion Coefficientcitations
- 2016Oxygen permeation flux through 10Sc1YSZ-MnCo2O4 asymmetric membranes prepared by two-step sinteringcitations
- 2016Oxygen permeation flux through 10Sc1YSZ-MnCo 2 O 4 asymmetric membranes prepared by two-step sinteringcitations
- 2016Poly(vinylpyrrolidone) as dispersing agent for cerium-gadolinium oxide (CGO) suspensionscitations
- 2016Processing and characterization of multilayers for energy device fabrication (invited)
- 2016Nanocomposite YSZ-NiO Particles with Tailored Structure Synthesized in a Two-Stage Continuous Hydrothermal Flow Reactor
- 2015Rheological properties of poly (vinylpiyrrolidone) as a function of average molecular weight and its applications
- 2015Modeling of Ni Diffusion Induced Austenite Formation in Ferritic Stainless Steel Interconnectscitations
- 2015Modeling of Ni Diffusion Induced Austenite Formation in Ferritic Stainless Steel Interconnectscitations
- 2014Influence of Mn-Co Spinel Coating on Oxidation Behavior of Ferritic SS Alloys for SOFC Interconnect Applications
- 2014Influence of Mn-Co Spinel Coating on Oxidation Behavior of Ferritic SS Alloys for SOFC Interconnect Applications
- 2014Thermo-mechanical properties of SOFC components investigated by a combined method
- 2014TOF-SIMS characterization of impurity enrichment and redistribution in solid oxide electrolysis cells during operationcitations
- 2013Infiltration of ionic-, electronic- and mixed-conducting nano particles into La0.75Sr0.25MnO3–Y0.16Zr0.84O2 cathodes – A comparative study of performance enhancement and stability at different temperaturescitations
- 2013Infiltration of ionic-, electronic- and mixed-conducting nano particles into La 0.75 Sr 0.25 MnO 3 –Y 0.16 Zr 0.84 O 2 cathodes – A comparative study of performance enhancement and stability at different temperaturescitations
- 2012Durable and Robust Solid Oxide Fuel Cells
- 2012Characterization of impregnated GDC nano structures and their functionality in LSM based cathodescitations
- 2006[C3H10NO]2[Sb4S7]: Solvothermal syntheses, crystal structures and properties of the first thioantimonates containing aminoalcohols as structure directorscitations
- 2006Synthesis of Thin Cr3Se4 Films from Modulated Elemental Reactants via Two Amorphous Intermediates: A Detailed Examination of the Reaction Mechanismcitations
- 2006A study of the reactivity of elemental Cr/Se/Te thin multilayers using X-ray reflectometry, in situ X-ray diffraction and X-ray absorption spectroscopycitations
Places of action
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article
Gd0.2Ce0.8O1.9/Y0.16Zr0.84O1.92 nanocomposite thin films for low temperature ionic conductivity
Abstract
Gd<sub>0.2</sub>Ce<sub>0.8</sub>O<sub>1.9</sub>/Y<sub>0.16</sub>Zr<sub>0.84</sub>O<sub>1.92</sub> (GDC/YSZ) nanocomposite is synthesized by a novel hybrid chemical route, where colloidal crystalline GDC nanoparticles from continuous hydrothermal synthesis are dispersed into a metalorganic YSZ matrix precursor. The result is a mixture of metal oxides in which GDC nanoparticles are finely distributed in a continuous metalorganic polymeric matrix to be crystallized after calcination. The GDC nanoparticles reduce the temperature necessary to obtain crystalline YSZ, which is already formed at 400 °C. The nanocomposite reveals structural stability up to 800 °C when treated in both air and reducing atmosphere, showing the onset of diffusion below 1000 °C. The diffusional processes are largely dependent on the nanometric grain size, with Zr<sup>4+</sup> diffusing abruptly towards GDC in air at 1000 °C and GDC/YSZ interdiffusion being hindered in reducing environment despite the onset temperature of 900 °C. The nanocomposite precursor is an inkjet-printable reactive water-based material, suitable for the deposition of thin films with a thickness below 100 nm after calcination at 750 °C. The crystal structure of the film reveals no interaction between GDC and YSZ but a microstrain (0.3% tensile strain for YSZ). The thin film microstructure shows a compact layer with 94% density. The nanocomposite shows high oxygen ionic conductivity at low temperatures (>5⋅10<sup>-3 </sup>S⋅cm<sup>-1</sup> at 500 °C), low activation energy (0.55 eV), and dominant oxygen ionic conductivity even in reducing conditions (pO<sub>2</sub> <10<sup>–25</sup> atm). We show that these properties arise from the large interface between the components of the composite, due to the embedding of the GDC nanoparticles in the YSZ matrix, while ZrO-CeO intermixing can be avoided and no n-type conductivity is observed even at low oxygen activities and high temperatures.