| 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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Fiordaliso, Elisabetta Maria
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2022Doping Profiles in Ultrathin Vertical VLS-Grown InAs Nanowire MOSFETs with High Performance.
- 2021Doping Profiles in Ultrathin Vertical VLS-Grown InAs Nanowire MOSFETs with High Performancecitations
- 2020Effect of Cold Sintering Process (CSP) on the Electro-Chemo-Mechanical Properties of Gd-doped Ceria (GDC)citations
- 2020Shadow Epitaxy for In Situ Growth of Generic Semiconductor/Superconductor Hybridscitations
- 2019Evolution of intermetallic GaPd2/SiO2 catalyst and optimization for methanol synthesis at ambient pressurecitations
- 2015Intermetallic GaPd2 Nanoparticles on SiO2 for Low-Pressure CO2 Hydrogenation to Methanolcitations
- 2015Intermetallic GaPd 2 Nanoparticles on SiO 2 for Low-Pressure CO 2 Hydrogenation to Methanol:Catalytic Performance and In Situ Characterizationcitations
- 2012H2 splitting on Pt, Ru and Rh nanoparticles supported on sputtered HOPGcitations
- 2012Size dependent reactivity of metal nanoparticles and alloys supported on HOPG, probed by the H-D exchange and the NH3 decomposition reactions
- 2012Strong Metal Support Interaction of Pt and Ru Nanoparticles Deposited on HOPG Probed by the H-D Exchange Reactioncitations
- 2011H2-splitting on Pt/Ru alloys supported on sputtered HOPGcitations
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article
Intermetallic GaPd2 Nanoparticles on SiO2 for Low-Pressure CO2 Hydrogenation to Methanol
Abstract
A nanodispersed intermetallic GaPd<sub>2</sub>/SiO<sub>2</sub> catalyst is prepared by simple impregnation of industrially relevant high-surface-area SiO<sub>2</sub> with Pd and Ga nitrates, followed by drying, calcination, and reduction in hydrogen. The catalyst is tested for CO<sub>2</sub> hydrogenation to methanol at ambient pressure, revealing that the intrinsic activity of the GaPd<sub>2</sub>/SiO<sub>2</sub> is higher than that of the conventional Cu/ZnO/Al<sub>2</sub>O<sub>3</sub>, while the production of the undesired CO is lower. A combination of complementary in situ and ex situ techniques are used to investigate the GaPd<sub>2</sub>/SiO<sub>2</sub> catalyst. In situ X-ray diffraction and in situ extended X-ray absorption fine structure spectroscopy show that the GaPd<sub>2</sub> intermetallic phase is formed upon activation of the catalyst via reduction and remains stable during CO<sub>2</sub> hydrogenation. Identical location-transmission electron microscopy images acquired ex situ (i.e., micrographs of exactly the same catalyst area recorded at the different steps of activation and reaction procedure) show that nanoparticle size and dispersion are defined upon calcination with no significant changes observed after reduction and methanol synthesis. Similar conclusions can be drawn from electron diffraction patterns and images acquired using environmental TEM (ETEM), indicating that ETEM results are representative for the catalyst treated at ambient pressure. The chemical composition and the crystalline structure of the nanoparticles are identified by scanning TEM energy dispersive X-ray spectroscopy, selected area electron diffraction, and atomically resolved TEM images.