| People | Locations | Statistics |
|---|---|---|
| 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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Norrman, Kion
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (40/40 displayed)
- 2019Diluted Oxide Interfaces with Tunable Ground Statescitations
- 2018Oxygen Exchange and Transport in (La0.6Sr0.4)0.98FeO3-d – Ce0.9Gd0.1O1.95 Dual-Phase Compositescitations
- 2018High-temperature thermoelectric properties of Na- and W-Doped Ca3Co4O9 system citations
- 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
- 2017Mid-IR optical properties of silicon doped InPcitations
- 2017Dynamic and Impure Perovskite Structured Metal Oxide Surfacescitations
- 2016New Hypothesis for SOFC Ceramic Oxygen Electrode Mechanismscitations
- 2016In situ X-ray scattering of perovskite solar cell active layers roll-to-roll coated on flexible substratescitations
- 2016In situ X-ray scattering of perovskite solar cell active layers roll-to-roll coated on flexible substratescitations
- 2015Polarization Induced Changes in LSM Thin Film Electrode Composition Observed by In Operando Raman Spectroscopy and TOF-SIMS
- 2015Dynamic behavior of impurities and native components in model LSM microelectrodes on YSZcitations
- 2014TOF-SIMS characterization of impurity enrichment and redistribution in solid oxide electrolysis cells during operationcitations
- 2014TOF-SIMS investigation of degradation pathways occurring in a variety of organic photovoltaic devices – the ISOS-3 inter-laboratory collaborationcitations
- 2013Oxygen Electrode Kinetics and Surface Composition of Dense (La0.75Sr0.25)0.95MnO3 on YSZcitations
- 2013All polymer photovoltaics: From small inverted devices to large roll-to-roll coated and printed solar cellscitations
- 2013All polymer photovoltaics: From small inverted devices to large roll-to-roll coated and printed solar cellscitations
- 2013Oxygen Electrode Kinetics and Surface Composition of Dense (La 0.75 Sr 0.25 ) 0.95 MnO 3 on YSZcitations
- 2012TOF-SIMS investigation of degradation pathways occurring in a variety of organic photovoltaic devices - the ISOS-3 inter-laboratory collaborationcitations
- 2012TOF-SIMS investigation of degradation pathways occurring in a variety of organic photovoltaic devices - the ISOS-3 inter-laboratory collaborationcitations
- 2012Stability of Polymer Solar Cellscitations
- 2012Comprehensive Investigation of Silver Nanoparticle/Aluminum Electrodes for Copper Indium Sulfide/Polymer Hybrid Solar Cellscitations
- 2012TOF-SIMS investigation of degradation pathways occurring in a variety of organic photovoltaic devices–the ISOS-3 inter-laboratory collaborationcitations
- 2012Rapid flash annealing of thermally reactive copolymers in a roll-to-roll process for polymer solar cellscitations
- 2012TOF-SIMS investigation of degradation pathways occurring in a variety of organic photovoltaic devices – the ISOS-3 inter-laboratory collaborationcitations
- 2012TOF-SIMS investigation of degradation pathways occurring in a variety of organic photovoltaic devices – the ISOS-3 inter-laboratory collaborationcitations
- 2012Simultaneous multilayer formation of the polymer solar cell stack using roll-to-roll double slot-die coating from watercitations
- 2012Simultaneous multilayer formation of the polymer solar cell stack using roll-to-roll double slot-die coating from watercitations
- 2011Aqueous Processing of Low-Band-Gap Polymer Solar Cells Using Roll-to-Roll Methodscitations
- 2011Aqueous Processing of Low-Band-Gap Polymer Solar Cells Using Roll-to-Roll Methodscitations
- 2011Oxygen- and water-induced degradation of an inverted polymer solar cell: the barrier effectcitations
- 2011Water and oxygen induced degradation of small molecule organic solar cellscitations
- 2010Using Light-Induced Thermocleavage in a Roll-to-Roll Process for Polymer Solar Cellscitations
- 2010Degradation Patterns in Water and Oxygen of an Inverted Polymer Solar Cellcitations
- 2010Degradation Patterns in Water and Oxygen of an Inverted Polymer Solar Cellcitations
- 2010Stability and Degradation of Polymer Solar cells
- 2009Water-Induced Degradation of Polymer Solar Cells Studied by (H2O)-O-18 Labelingcitations
- 2008Effects of trace elements at the Ni/ScYSZ interface in a model solid oxide fuel cell anodecitations
- 2007Analysis of the failure mechanism for a stable organic photovoltaic during 10 000 h of testingcitations
- 2006Lifetimes of organic photovoltaics: Design and synthesis of single oligomer molecules in order to study chemical degradation mechanismscitations
- 2006Oxygen release and exchange in niobium oxide MEHPPV hybrid solar cellscitations
Places of action
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article
Oxygen Exchange and Transport in (La0.6Sr0.4)0.98FeO3-d – Ce0.9Gd0.1O1.95 Dual-Phase Composites
Abstract
The chemical diffusion coefficient and the effective surface exchange coefficient (<em>k</em><sub>ex</sub>) of dual-phase (La<sub>0.6</sub>Sr<sub>0.4</sub>)<sub>0.98</sub>FeO<sub>3-d</sub> (LSF) − Ce<sub>0.9</sub>Gd<sub>0.1</sub>O<sub>1.95</sub> (CGO) composites containing between 30 and 70 vol.% of CGO were determined by electrical conductivity relaxation (ECR) athigh oxygen partial pressures (10<sup>−3</sup> < <em>p</em>O<sub>2</sub> <<sub> </sub>1 atm) and at temperatures between 600°C and 900°C. The surface impurity segregation was detected by TOF-SIMS analysis. Alarge enhancement of <em>k</em><sub>ex</sub> was observed with increasing CGO fraction in the composite. <em>k</em><sub>ex</sub> was increased from 3.51 × 10<sup>−5 </sup>cm/s for a pure LSF to 1.86 × 10<sup>−4 </sup>cm/s for a 70 vol.% of CGO in the composite at 750°C for a <em>p</em>O<sub>2</sub> change from 0.2 to 1.0 atm. The experiments demonstrate that the <em>k</em><sub>ex</sub>is enhanced due to a synergistic effect between the two phases, andsuggest a direct involvement of CGO phase in the oxygensurface exchange reaction. Possible mechanisms thatcould account for the synergy are the oxygen exchange process occursalsoon the CGO surface, for example a spillover ofabsorbed oxygen ions from the LSF surface to the CGO surface or/andscavengingof impurities from one phase to another, therebyimproving the oxygen exchange properties of the cleaned phase.