| 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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Jensen, Søren Højgaard
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (22/22 displayed)
- 2022Development of an SFMM/CGO composite electrode with stable electrochemical performance at different oxygen partial pressurescitations
- 2022Development of an SFMM/CGO composite electrode with stable electrochemical performance at different oxygen partial pressurescitations
- 2022Development of an SFMM/CGO composite electrode with stable electrochemical performance at different oxygen partial pressurescitations
- 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
- 2020Low-temperature preparation and investigation of electrochemical properties of SFM/CGO composite electrodecitations
- 2020Low-temperature preparation and investigation of electrochemical properties of SFM/CGO composite electrodecitations
- 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
- 2018Diffusion rates of reactants and components in solid oxide cells
- 2017A Physically-Based Equivalent Circuit Model for the Impedance of a LiFePO 4 /Graphite 26650 Cylindrical Cellcitations
- 2017A Physically-Based Equivalent Circuit Model for the Impedance of a LiFePO4/Graphite 26650 Cylindrical Cellcitations
- 2017Investigation of a Spinel-forming Cu-Mn Foam as an Oxygen Electrode Contact Material in a Solid Oxide Cell Single Repeating Unitcitations
- 2016Electron microscopy investigations of changes in morphology and conductivity of LiFePO4/C electrodescitations
- 2015In Situ Studies of Fe4+ Stability in β-Li3Fe2(PO4)3 Cathodes for Li Ion Batteriescitations
- 2014Degradation Studies on LiFePO 4 cathode
- 2014Degradation Studies on LiFePO4 cathode
- 2008Solid Oxide Electrolysis Cells: Microstructure and Degradation of the Ni/Yttria-Stabilized Zirconia Electrodecitations
- 2007Solid Oxide Electrolyser Cell
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article
Solid Oxide Electrolysis Cells: Microstructure and Degradation of the Ni/Yttria-Stabilized Zirconia Electrode
Abstract
Solid oxide fuel cells produced at Risø DTU have been tested as solid oxide electrolysis cells for steam electrolysis by applying an external voltage. Varying the sealing on the hydrogen electrode side of the setup verifies that the previously reported passivation over the first few hundred hours of electrolysis testing was an effect of the applied glass sealing. Degradation of the cells during long-term galvanostatic electrolysis testing [850°C, −1/2A/cm2, p(H2O)/p(H2)=0.5/0.5] was analyzed by impedance spectroscopy and the degradation was found mainly to be caused by increasing polarization resistance associated with thehydrogen electrode. A cell voltage degradation of 2%/1000h was obtained. Postmortem analysis of cells tested at these conditions showed that the electrode microstructure could withstand at least 1300h of electrolysis testing, however, impurities were found in the hydrogen electrode of tested solid oxide electrolysis cells. Electrolysis testing at high currentdensity, high temperature, and a high partial pressure of steam[−2A/cm2, 950°C, p(H2O)=0.9atm] was observed to lead to significant microstructural changes at the hydrogen electrode-electrolyte interface.