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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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Ovtar, Simona
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2020Surface treatments and functionalization of metal‐ceramic membranes for improved enzyme immobilization performancecitations
- 2020Surface treatments and functionalization of metal‐ceramic membranes for improved enzyme immobilization performancecitations
- 2019A 4 × 4 cm2 Nanoengineered Solid Oxide Electrolysis Cell for Efficient and Durable Hydrogen Productioncitations
- 2018Oxygen Exchange and Transport in (La0.6Sr0.4)0.98FeO3-d – Ce0.9Gd0.1O1.95 Dual-Phase Compositescitations
- 2018Oxygen Exchange and Transport in (La 0.6 Sr 0.4 ) 0.98 FeO 3-d – Ce 0.9 Gd 0.1 O 1.95 Dual-Phase Compositescitations
- 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
- 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
- 2016Beneficial Effect of Surface Decorations on the Surface Exchange of Lanthanum Strontium Ferrite and Dual Phase Composites
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.