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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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Bjørnetun Haugen, Astri
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (19/19 displayed)
- 2024Temperature-Dependent Ferroelectric Properties and Aging Behavior of Freeze-Cast Bismuth Ferrite-Barium Titanate Ceramicscitations
- 2023Interfacial Engineering of PVDF-TrFE toward Higher Piezoelectric, Ferroelectric, and Dielectric Performance for Sensing and Energy Harvesting Applicationscitations
- 2023Humidity resistance and recovery of sintered sodium potassium niobate-based piezoelectricscitations
- 2022Freeform injection molding of functional ceramics by hybrid additive manufacturingcitations
- 2022Piezoelectric properties of mechanochemically processed 0.67BiFeO3-0.33BaTiO3 ceramicscitations
- 2021Textured, lead-free piezoelectric ceramics with high figure of merit for energy harvestingcitations
- 2021Low-temperature synthesis of bismuth titanate by modified citrate amorphous methodcitations
- 2019Hybrid atmosphere processing of lead-free piezoelectric sodium potassium niobate-based ceramicscitations
- 2018Exploring the Processing of Tubular Chromite- and Zirconia-Based Oxygen Transport Membranescitations
- 2018Exploring the Processing of Tubular Chromite- and Zirconia-Based Oxygen Transport Membranescitations
- 2018Deposition of highly oriented (K,Na)NbO 3 films on flexible metal substratescitations
- 2018Deposition of highly oriented (K,Na)NbO3 films on flexible metal substratescitations
- 2017Oxygen transport properties of tubular Ce 0.9 Gd 0.1 O 1.95 -La 0.6 Sr 0.4 FeO 3−d composite asymmetric oxygen permeation membranes supported on magnesium oxidecitations
- 2017Ceramic processing of tubular, multilayered oxygen transport membranes (Invited)
- 2017Oxygen transport properties of tubular Ce0.9Gd0.1O1.95-La0.6Sr0.4FeO3−d composite asymmetric oxygen permeation membranes supported on magnesium oxidecitations
- 2016Graphite and PMMA as pore formers for thermoplastic extrusion of porous 3Y-TZP oxygen transport membrane supportscitations
- 2016Processing and characterization of multilayers for energy device fabrication (invited)
- 2015Tailoring of porosity of yttria-stabilized zirconia tubes as supports for oxygen separation membranes
- 2015Tailoring of porosity of yttria-stabilized zirconia tubes as supports for oxygen separation membranes
Places of action
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article
Oxygen transport properties of tubular Ce0.9Gd0.1O1.95-La0.6Sr0.4FeO3−d composite asymmetric oxygen permeation membranes supported on magnesium oxide
Abstract
The oxygen permeation through dense Ce<sub style="background-color: rgb(255, 255, 255);">0.9</sub>Gd<sub style="background-color: rgb(255, 255, 255);">0.1</sub>O<sub style="background-color: rgb(255, 255, 255);">1.95</sub>-La<sub style="background-color: rgb(255, 255, 255);">0.6</sub>Sr<sub style="background-color: rgb(255, 255, 255);">0.4</sub>FeO<sub style="background-color: rgb(255, 255, 255);">3</sub>−d dual-phase composite asymmetric membranes supported on a porous MgO tube was studied. The membranes were prepared by thermoplastic extrusion, dip coating, co-sintering and infiltration of a catalyst. Oxygen permeation measurements and electrical conductivity characterization of the membrane were performed as a function of temperature and oxygen partial pressure. The oxygen flux through the membrane in a H<sub>2</sub>/air gradient at 850 °C reached 15 N ml cm<sup>−2</sup> min<sup>−1</sup>. The measured oxygen flux was in good agreement with the theoretically estimated one, taking into account the transport properties of the composite, surface exchange losses, gas diffusion and gas conversion in the MgO support. The performance of the membrane was limited by the surface exchange for the operation in N<sub>2</sub>/air, CO<sub>2</sub>/air and H<sub>2</sub>/air at low temperatures and most probably by the porosity of the MgO support for the operation in H2/air at 850 °C. The stability tests of the membrane in CO<sub>2</sub>/air and H<sub>2</sub>/air configurations revealed that an initial degradation of the oxygen flux occurs and it is followed by a relatively stable performance. Post-mortem analysis of the membrane after 900 h of operation did not reveal any significant microstructural degradation of the membrane layer.