| 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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Sun, Xiufu
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2023Solid Oxide Electrochemical Cells for Nitrogen and Oxygen Production
- 2022Metal Supported Electrolysis Cellscitations
- 2021Ni migration in solid oxide cell electrodes:Review and revised hypothesiscitations
- 2021Ni migration in solid oxide cell electrodes: Review and revised hypothesiscitations
- 2021Ni migration in solid oxide cell electrodes: Review and revised hypothesiscitations
- 2020Co-electrolysis of steam and carbon dioxide in large area solid oxide cells based on infiltrated mesoporous oxygen electrodescitations
- 2020Metal Supported SOFCs for Mobile Applications using Hydrocarbon Fuelscitations
- 2020Review of Ni migration in SOC electrodes
- 2020Review of Ni migration in SOC electrodes
- 2019Comprehensive Hypotheses for Degradation Mechanisms in Ni-Stabilized Zirconia Electrodescitations
- 2019Comprehensive Hypotheses for Degradation Mechanisms in Ni-Stabilized Zirconia Electrodescitations
- 2019Internal reforming on Metal supported SOFCscitations
- 2018Diffusion rates of reactants and components in solid oxide cells
- 2017Investigation of a Spinel-forming Cu-Mn Foam as an Oxygen Electrode Contact Material in a Solid Oxide Cell Single Repeating Unitcitations
- 2014TOF-SIMS characterization of impurity enrichment and redistribution in solid oxide electrolysis cells during operationcitations
Places of action
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article
Comprehensive Hypotheses for Degradation Mechanisms in Ni-Stabilized Zirconia Electrodes
Abstract
Degradation of nickel-stabilized zirconia (Ni-SZ) electrodes is predominantly due to four features 1) high mobility of Ni, 2) fragile nature of SZ ceramics, 3) narrow three phase boundary (3PB), and 4) effects of impurities: i) in blocking (poisoning of 3PB), and ii) on mobility of Ni. Impurities may be contaminants in reactant gases and influenced by the reactants H2O, CO2 and CO, or impurities in cell and stack materials. Examples of important degradation types and hypotheses of the degradation mechanisms are described. Examples are: a) loss of electrochemical contact between Ni and YSZ (yttria stabilized zirconia) particles and loss of contact between Ni-Ni particles followed by Ni-migration away from the YSZ electrolyte - one reason is hypothesized being a result of huge potential and thermal gradients at the 3PB; b) growth of Ni-particles; c) redoxing; d) blocking of 3PB and reaction sites by impurities like Si and S. Mitigation methods are discussed.