| 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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Schild, Dieter
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2024Synthesis, characterization and solubility of M-Pu(VI)-O(H) solid phases
- 2023Stainless steel corrosion under anoxic, highly saline and elevated temperature conditions
- 2023Green methanol from renewable feeds : Towards scalable catalyst synthesis and improved stability
- 2023Corrosion processes at the GGG40 steel–bentonite interface
- 2021Anaerobic corrosion of carbon steel in compacted bentonite exposed to natural opalinus clay porewater: bentonite alternation study
- 2021Design of bimetallic Au/Cu nanoparticles in ionic liquids: Synthesis and catalytic properties in 5‐(hydroxymethyl)furfural oxidationcitations
- 2021Anaerobic corrosion of carbon steel in compacted bentonite exposed to natural Opalinus clay porewater: Bentonite alteration studycitations
- 2017Three-dimensional printing of transparent fused silica glasscitations
- 2017Chemical reduction of nitrate by zerovalent iron nanoparticles adsorbed radiation-grafted copolymer matrixcitations
- 2017Chemical reduction of nitrate by zerovalent iron nanoparticles adsorbed radiation-grafted copolymer matrix
- 2015Comparative U, Np and Pu M edge high energy resolution X-ray absorption spectroscopy (HR-XANES) investigations of model and genuine active waste glass
- 2012Corrosion of spent nuclear fuel segment in presence of Fe(II)/Fe(III) oxide
Places of action
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document
Green methanol from renewable feeds : Towards scalable catalyst synthesis and improved stability
Abstract
Methanol is an important platform chemical in many applications.[1] The widely used Cu/ZnO-based catalysts for methanol synthesis have been studied in detail.[2]CO2-rich feeds (e.g. from carbon capture and storage; CCS) can contribute to the reduction of the climate footprint of methanol production. Cu/ZnO/ZrO2 (CZZ) systems have been developed for the conversion of syngas with high CO2 content, combining good productivity with appropriate stability over long time on stream (ToS).[3,4] To obtain the CZZ material in sufficient amounts with the desired properties (e.g. high activity and stability), continuous co-precipitation has been implemented as a promising formation method.[5] Future methanol production is expected to use H2 from solar-based electrolysis which, due to occurring impurities, could affect catalyst stability. In this work, recent results on understanding the fundamentals of catalyst precursor synthesis, especially with regard to the effect of ZrO2 on precursor formation are presented (Figure 1a). An optimization of the synthesis procedure in terms of ageing time and productivity by seeding will be discussed (Figure 1b).Effects of long-term catalyst use in methanol synthesis with particular regard to deactivation phenomena will also be presented. For this, a baseline is established by deactivating catalysts under pure feed gases and analyzing them afterwards. It is found that sintering of metallic copper and also zinc oxide are the main causes of catalyst deactivation as it is known from literature.[6] Interestingly, sintering is even beginning during initial reduction (activation) of the material and is not reversible by re-reduction. In addition, it was observed that the amount of zinc oxide on the surface of the catalysts is increasing by reducing it. This is caused by the formation of a ZnOx overlayer, as literature found for CZA systems. [7] Potential impurities may be dosed additionally in future work.