| 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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Poelman, Hilde
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
- 2022Shuffling Atomic Layer Deposition Gas Sequences to Modulate Bimetallic Thin Films and Nanoparticle Propertiescitations
- 2022Shuffling atomic layer deposition gas sequences to modulate bimetallic thin films and nanoparticle propertiescitations
- 2022Upcycling the carbon emissions from the steel industry into chemicals using three metal oxide loopscitations
- 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
- 2019Fe2O3-MgAl2O4 for CO production from CO2 : Mössbauer spectroscopy and in situ X-ray diffractioncitations
- 2018Kinetics of Lifetime Changes in Bimetallic Nanocatalysts Revealed by Quick X-ray Absorption Spectroscopycitations
- 2018PdZn nanoparticle catalyst formation for ethanol dehydrogenation : active metal impregnation vs incorporationcitations
- 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
- 2007Effect of microstructure and crystallinity on the photocatalytic activity of TiO2 thin films deposited by dc magnetron sputtering
Places of action
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article
Kinetics of Lifetime Changes in Bimetallic Nanocatalysts Revealed by Quick X-ray Absorption Spectroscopy
Abstract
Alloyed metal nanocatalysts are of environmental and economic importance in a plethora of chemical technologies. During the catalyst lifetime, supported alloy nanoparticles undergo dynamic changes which are well‐recognized but still poorly understood. High‐temperature O2–H2 redox cycling was applied to mimic the lifetime changes in model Pt13In9 nanocatalysts, while monitoring the induced changes by in situ quick X‐ray absorption spectroscopy with one‐second resolution. The different reaction steps involved in repeated Pt13In9 segregation‐alloying are identified and kinetically characterized at the single‐cycle level. Over longer time scales, sintering phenomena are substantiated and the intraparticle structure is revealed throughout the catalyst lifetime. The in situ time‐resolved observation of the dynamic habits of alloyed nanoparticles and their kinetic description can impact catalysis and other fields involving (bi)metallic nanoalloys.