| 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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Parlett, Cma
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2023Use of copper carbonate as corrosion inhibitor for carbon steel in post combustion carbon capturecitations
- 2021Atom efficient PtCu bimetallic catalysts and ultra dilute alloys for the selective hydrogenation of furfuralcitations
- 2019Oxidative Thermal Sintering and Redispersion of Rh Nanoparticles on Supports with High Oxygen Ion Labilitycitations
- 2019Platinum catalysed aerobic selective oxidation of cinnamaldehyde to cinnamic acid
- 2018Delaminated CoAl‐Layered Double Hydroxide@TiO₂ Heterojunction Nanocomposites for Photocatalytic Reduction of CO₂
- 2018NMR cryoporometric measurements of porous silicacitations
- 2018Platinum catalysed aerobic selective oxidation of cinnamaldehyde to cinnamic acidcitations
- 2018Tunable silver-functionalized porous frameworks for antibacterial applicationscitations
- 2017Tunable Ag@SiO2 core–shell nanocomposites for broad spectrum antibacterial applicationscitations
- 2017P25@CoAl layered double hydroxide heterojunction nanocomposites for CO2 photocatalytic reductioncitations
- 2017High activity magnetic core-mesoporous shell sulfonic acid silica nanoparticles for carboxylic acid esterificationcitations
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article
Oxidative Thermal Sintering and Redispersion of Rh Nanoparticles on Supports with High Oxygen Ion Lability
Abstract
The thermal sintering under oxidative conditions of Rh nanoparticles supported on oxides characterized by very different oxygen storage capacities (OSC) and labilities was studied at 750 and 850 °C. Under sintering conditions, significant particle growth occurred for Rh/γ-Al2O3 (up to 120% at 850 °C). In striking contrast, Rh/ACZ (alumina–ceria–zirconia) and Rh/CZ (ceria–zirconia) exhibited marked resistance to sintering, and even moderate (ca. −10% at 850 °C) to pronounced (ca. −60% at 850 °C) redispersion of the Rh. A model is proposed based on a double-layer description of metal–support interactions assigned to back-spillover of labile oxygen ions onto the Rh particles, accompanied by trapping of atomic Rh by the resulting surface oxygen vacancies. This model accounts for the observed resistance to sintering and actual redispersion of Rh, consistent with both alternative sintering mechanisms, namely Ostwald ripening (OR) or particle migration and coalescence (PMC).