| 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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Galvita, Vladimir
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (26/26 displayed)
- 2024Controlling Pt nanoparticle sintering by sub-monolayer MgO ALD thin filmscitations
- 2024Evolution of low Z-elements in a Ni/MgFeAlO 4 catalyst during reaction : insight from in situ XRScitations
- 2023High temperature H2S removal via CO2-assisted chemical looping over ZrO2-modified Fe2O3citations
- 2022Upcycling the carbon emissions from the steel industry into chemicals using three metal oxide loopscitations
- 2022Preferential oxidation of H2 in CO-rich streams over a Ni/γ-AI2o3 catalyst : an experimental and first-principles microkinetic studycitations
- 2022Decarbonisation of steel mill gases in an energy-neutral chemical looping processcitations
- 2021Microstructured ZrO2 coating of iron oxide for enhanced CO2 conversioncitations
- 2021In situ XAS/SAXS study of Al2O3-coated PtGa catalysts for propane dehydrogenationcitations
- 2020Hierarchical Fe-modified MgAl2O4 as Ni-catalyst support for methane dry reformingcitations
- 2020Ethanol dehydrogenation over Cu catalysts promoted with Ni : stability controlcitations
- 2020FeO controls the sintering of iron-based oxygen carriers in chemical looping CO2 conversioncitations
- 2019Pressure-induced deactivation of core-shell nanomaterials for catalyst assisted chemical loopingcitations
- 2019Carbon capture and utilization in the steel industry : challenges and opportunities for chemical engineeringcitations
- 2019Carbon capture and utilization in the steel industry : challenges and opportunities for chemical engineeringcitations
- 2019Fe2O3-MgAl2O4 for CO production from CO2 : Mössbauer spectroscopy and in situ X-ray diffractioncitations
- 2018PdZn nanoparticle catalyst formation for ethanol dehydrogenation : active metal impregnation vs incorporationcitations
- 2018Ni nanoparticles and the Kirkendall effect in dry reforming of methanecitations
- 2017Controlling the stability of a Fe-Ni reforming catalyst : structural organization of the active componentscitations
- 2017CO production from CO2 via reverse water–gas shift reaction performed in a chemical looping mode : kinetics on modified iron oxidecitations
- 2017Size- and composition-controlled Pt–Sn bimetallic nanoparticles prepared by atomic layer depositioncitations
- 2016Atomic layer deposition route to tailor nanoalloys of noble and non-noble metalscitations
- 2016Hydrogen and carbon monoxide production by chemical looping over iron-aluminium oxidescitations
- 2016Deactivation study of Fe2O3−CeO2 during redox cycles for CO production from CO2citations
- 2016Kinetics of multi-step redox processes by time-resolved In situ X-ray diffractioncitations
- 2015Mg-Fe-Al-O for advanced CO2 to CO conversion: carbon monoxide yield vs. oxygen storage capacitycitations
- 2014Delivering a modifying element to metal nanoparticles via support: Pt-Ga alloying during the reduction of Pt/Mg(Al,Ga)Ox catalysts and its effects on propane dehydrogenationcitations
Places of action
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article
Mg-Fe-Al-O for advanced CO2 to CO conversion: carbon monoxide yield vs. oxygen storage capacity
Abstract
A detailed study of new oxygen carrier materials, Mg-Fe-Al-O, with various loadings of iron oxide (10-100 wt% Fe2O3) is carried out in order to investigate the relationship between material transformation, stability and CO yield from CO2 conversion. In situ XRD during H-2-TPR, CO2-TPO and isothermal chemical looping cycles as well as Mossbauer spectroscopy are employed. All samples show the formation of a spinel phase, MgFeAlOx. High loadings of iron oxide (50-90 wt%) lead to both spinel and Fe2O3 phases and show deactivation in cycling as a result of Fe2O3 particle sintering. During the reduction, reoxidation and cycling of the spinel MgFeAlOx phase, only limited sintering occurs. This is evidenced by the stable spinel crystallite sizes (similar to 15-20 nm) during isothermal cycling. The reduction of MgFe3+AlOx starts at 400 degrees C and proceeds via partial reduction to MgFe2+AlOx. Prolonged cycling and higher temperatures (>750 degrees C) lead to deeper reduction and segregation of Fe from the spinel structure. Very high stability and CO yield from CO2 conversion are found in Mg-Fe-Al-O materials with 10 wt% Fe2O3, i.e. the lowest oxygen storage capacity among the tested samples. Compared to 10 wt% Fe2O3 supported on Al2O3 or MgO, the CO yield of the 10 wt% Fe2O3-MgFeAlOx spinel is ten times higher.