| 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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Görke, Oliver
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2024Photolithographic additive manufacturing of high-entropy perovskite oxides from synthesized multimetallic polymeric precursors
- 2023Electrochemical Surface Treatment for Tailored Porous Structurescitations
- 2022Ceramic Stereolithography of Bioactive Glasses: Influence of Resin Composition on Curing Behavior and Green Body Propertiescitations
- 2021Biocompatibility and Immune Response of a Newly Developed Volume-Stable Magnesium-Based Barrier Membrane in Combination with a PVD Coating for Guided Bone Regeneration (GBR)
- 2020Metal-containing ceramic nanocomposites synthesized from metal acetates and polysilazane
- 2020Ceria-Based Dual-Phase Membranes for High-Temperature Carbon Dioxide Separation: Effect of Iron Doping and Pore Generation with MgO Template
- 2018Towards the colonization of Mars by in-situ resource utilization: Slip cast ceramics from Martian soil simulantcitations
- 2012Contributions of phase composition and defect structure to the long term stability of Li/MgO catalystscitations
- 2002Catalyst Coatings for Microstructure Reactorscitations
Places of action
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article
Contributions of phase composition and defect structure to the long term stability of Li/MgO catalysts
Abstract
<jats:title>Abstract</jats:title><jats:p>The phase composition and defect structure of the system Li<jats:sub>2</jats:sub>O–MgO was investigated in terms of the long term stability of Li/MgO catalysts. The Li content was varied from 0 to 7 mol.%. Pure Li · MgO solid solutions were prepared via a special washing procedure. Li contents below 0.04 wt.% were stabilized within the MgO host lattice, whereas higher Li contents were found to segregate as Li<jats:sub>2</jats:sub>O and Li<jats:sub>2</jats:sub>CO<jats:sub>3</jats:sub> phases. The catalytic activity in the oxidative coupling of methane was found to decay for all catalysts over a period of 19 h on stream, accompanied by a loss of Li as LiOH. Li in the Li · MgO solid solution was found to be more stable in the lattice than in the surface region of the solid. However, impedance measurements on transition metal stabilized Li/MgO catalysts indicated that even the Li ions within the Li · MgO solid solution are not sufficiently stabilized. Thus, neither the Li compounds nor the dissolved Li ions within the Li/MgO solution seem to be truly stable at 750°C under catalytic conditions.</jats:p>