| 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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Köhler, Daniel
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2024In-situ CT of the clinching process – Influence of settling effects due to process interruptions
- 2023Comparison of ex- and in-situ investigations of clinched single-lap shear specimenscitations
- 2023In-situ computed tomography and transient dynamic analysis of a single-lap shear test with a composite-metal clinch pointcitations
- 2023In-situ computed tomography - Analysis of a single-lap shear test with composite-metal pin joints
- 2022Approach to determine the characteristic dimensions of clinched joints by industrial X-ray computed tomography
- 2022Clinching in In Situ CT—A Novel Validation Method for Mechanical Joining Processescitations
- 2022Review on mechanical joining by plastic deformationcitations
- 2022Development of a rivet geometry for solid self-piercing riveting of thermally loaded CFRP-metal joints in automotive constructioncitations
- 2022Clinching of aluminum materials – Methods for the continuous characterization of process, microstructure and propertiescitations
- 2022Investigations on combined in situ CT and acoustic analysis during clinchingcitations
- 2022Untersuchung zum Einfluss radioopaker Zwischenschichten bei der in-situ CT geclinchter Verbindungen
- 2021In situ computed tomography – Analysis of a single-lap shear test with clinch pointscitations
- 2012Semimetallic paramagnetic nano-Bi2Ir and superconducting ferromagnetic nano-Bi3Ni by microwave-assisted synthesis and room temperature pseudomorphosiscitations
- 2012Synthesis of BiRh nanoplates with superior catalytic performance in the semihydrogenation of acetylenecitations
Places of action
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article
Synthesis of BiRh nanoplates with superior catalytic performance in the semihydrogenation of acetylene
Abstract
<p>Highly uniform and well-crystallized nanoparticles of the intermetallic compound BiRh were obtained by low-temperature synthesis at 240 °C using the microwave-assisted polyol process. In this time- and energy-efficient reaction the polyol acts as solvent, reducing agent, and surfactant, while the microwave radiation leads to fast and homogeneous nucleation and crystal growth. Electron microscopy studies confirmed the presence of pseudohexagonal nanoplates with a primary particle diameter of 60 nm and high crystallinity. As indicated by high-resolution transmission electron microscopy, the plate normal is generally not parallel to [001] but coincides with [421]. Powder X-ray diffraction and energy dispersive X-ray spectroscopy revealed the single-phase nature and the equimolar composition. The specific surface area (0.54 m <sup>2</sup> g <sup>-1</sup>) and the particle size distribution were measured by fractional sedimentation. According to the analysis of the chemical bonding by means of quantum chemical calculations, 0.62 electrons are transferred from Bi to Rh. Covalent homoatomic Rh-Rh as well as heteroatomic three-center Rh-Bi-Rh bonds define a three-dimensional bonding network. Unsupported BiRh nanoparticles exhibit an extraordinary high selectivity of 88 to 93% in the semihydrogenation of acetylene, which makes them an interesting model compound as well as a promising candidate for the application as an industrial catalyst.</p>