| 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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Chatzichristodoulou, Christodoulos
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (37/37 displayed)
- 2024Operando Electron Microscopy and Impedance Analysis of Solid Oxide Electrolysis and Fuel Cellscitations
- 2021Development of high-temperature electrochemical TEM and its application on solid oxide electrolysis cells
- 2021Development of high-temperature electrochemical TEM and its application on solid oxide electrolysis cells
- 2020Polysulfone-polyvinylpyrrolidone blend membranes as electrolytes in alkaline water electrolysiscitations
- 2020(Invited) Advanced Alkaline Electrolysis Cells for the Production of Sustainable Fuels and Chemicals
- 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
- 2017Ionic/Electronic Conductivity, Thermal/Chemical Expansion and Oxygen Permeation in Pr and Gd Co-Doped Ceria PrxGd0.1Ce0.9-xO1.95-δcitations
- 2017Chemical and Electrochemical Properties of La0.58Sr0.4Fe0.8Co0.2O3-δ (LSCF) Thin Films upon Oxygen Reduction and Evolution Reactions
- 2017Oxygen transport properties of tubular Ce0.9Gd0.1O1.95-La0.6Sr0.4FeO3−d composite asymmetric oxygen permeation membranes supported on magnesium oxidecitations
- 2016Relaxation of stresses during reduction of anode supported SOFCs
- 2016High Temperature and Pressure Alkaline Electrochemical Reactor for Conversion of Power to Chemicals
- 2016Evolution of the electrochemical interface in high-temperature fuel cells and electrolyserscitations
- 2016Design and optimization of porous ceramic supports for asymmetric ceria-based oxygen transport membranescitations
- 2016Design and optimization of porous ceramic supports for asymmetric ceria-based oxygen transport membranescitations
- 2016New Hypothesis for SOFC Ceramic Oxygen Electrode Mechanismscitations
- 2016High Temperature Alkaline Electrolysis Cells with Metal Foam Based Gas Diffusion Electrodescitations
- 2015Size of oxide vacancies in fluorite and perovskite structured oxidescitations
- 2015Need for In Operando Characterization of Electrochemical Interface Features
- 2015Kinetics of CO/CO 2 and H 2 /H 2 O reactions at Ni-based and ceria-based solid-oxide-cell electrodescitations
- 2014Composite Fe - BaCe0.2Zr0.6Y0.2O2.9 Anodes for Proton Conductor Fuel Cellscitations
- 2014Composite Fe - BaCe 0.2 Zr 0.6 Y 0.2 O 2.9 Anodes for Proton Conductor Fuel Cellscitations
- 2014Power to fuel using electrolysis and CO2 capture
- 2014TOF-SIMS characterization of impurity enrichment and redistribution in solid oxide electrolysis cells during operationcitations
- 2014High performance and highly durable infiltrated cathodes using Pr-modified Ce0.9Gd0.1O1.95 backbone
- 2014High performance and highly durable infiltrated cathodes using Pr-modified Ce 0.9 Gd 0.1 O 1.95 backbone
- 2013Defect chemistry, thermomechanical and transport properties of (RE2−xSrx)0.98(Fe0.8Co0.2)1−yMgyO4−δ (RE = La, Pr)citations
- 2013Pressurized HxCyOz Cells at ca. 250 °C: Potential and Challenges
- 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
- 2013High temperature and pressure alkaline electrolysis
- 2013Alkaline electrolysis cell at high temperature and pressure of 250 °C and 42 barcitations
- 2013Pressurized H x C y O z Cells at ca. 250 °C: Potential and Challenges
- 2013Defect chemistry, thermomechanical and transport properties of (RE 2 - x Sr x ) 0.98 (Fe 0.8 Co 0.2 ) 1 - y Mg y O 4 - δ (RE = La, Pr)citations
- 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
- 2012Characterization of impregnated GDC nano structures and their functionality in LSM based cathodescitations
- 2011Evaluation of thin film ceria membranes for syngas membrane reactors—Preparation, characterization and testingcitations
- 2010Oxygen Nonstoichiometry and Defect Chemistry Modeling of Ce0.8Pr0.2O2-deltacitations
- 2010Defect Chemistry and Thermomechanical Properties of Ce0.8PrxTb0.2-xO2-deltacitations
Places of action
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article
Evaluation of thin film ceria membranes for syngas membrane reactors—Preparation, characterization and testing
Abstract
Gadolinium doped ceria (Ce0.1Gd0.9O1.95−δ, CGO10) was investigated as oxygen separation membrane material for application in syngas production. Planar, thin film CGO10 membranes were fabricated by tape casting and lamination on porous NiO-YSZ supports and subsequent co-sintering. High oxygen fluxes, up to 16Nmlcm−2min−1 at 900°C, were obtained when placing the membrane between air and humidified hydrogen (H2/H2O=20). Initial experiments for syngas production were performed by testing the CGO10 membrane with methane and steam feed.The mechanical integrity of CGO10 membranes during operation (heat up, cooling, reduction and re-oxidation) was also investigated. Chemically induced stress in the CGO10 membrane due to harsh reduction of the CGO10 material at high temperatures and very low pO2 values can lead to mechanical failure by lattice expansion. Calculations of the oxygen non-stoichiometry profile in the 30μm thin CGO membrane under operation reveal that due to oxygen permeation in the membrane the largest non-stoichiometry at the permeate (fuel) side is more than a factor of 6 times smaller at 850°C than that expected for CGO10 at equilibrium. The related relative expansion of the thin film CGO membrane should therefore lie below the expansion limit of 0.1% expected to be critical for mechanical stability and thereby allows for operation at high temperatures and low oxygen partial pressures.