| 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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Mamakhel, Aref
Aarhus University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (21/21 displayed)
- 2024Synthesis and characterization of an organic-inorganic hybrid crystal
- 2022X-ray Electron Density Study of the Chemical Bonding Origin of Glass Formation in Metal–Organic Frameworkscitations
- 2022X-ray Electron Density Study of the Chemical Bonding Origin of Glass Formation in Metal–Organic Frameworkscitations
- 2022Composition space of PtIrPdRhRu high entropy alloy nanoparticles synthesized by solvothermal reactionscitations
- 2022Composition space of PtIrPdRhRu high entropy alloy nanoparticles synthesized by solvothermal reactionscitations
- 2022Combined characterization approaches to investigate magnetostructural effects in exchange-spring ferrite nanocomposite magnetscitations
- 2022Synthesis of Phase-Pure Thermochromic VO2 (M1)citations
- 2021Tailoring the stoichiometry of C 3 N 4 nanosheets under electron beam irradiationcitations
- 2021Tailoring the stoichiometry of C3N4 nanosheets under electron beam irradiation
- 2021Tailoring the stoichiometry of C3N4 nanosheets under electron beam irradiationcitations
- 2021Tuning of bandgaps and emission properties of light-emitting diode materials through homogeneous alloying in molecular crystalscitations
- 2019Promotion Mechanisms of Au Supported on TiO2 in Thermal- And Photocatalytic Glycerol Conversioncitations
- 2019General Solvothermal Synthesis Method for Complete Solubility Range Bimetallic and High-Entropy Alloy Nanocatalystscitations
- 2019Promotion Mechanisms of Au Supported on TiO 2 in Thermal- And Photocatalytic Glycerol Conversioncitations
- 2019In Situ In-House Powder X-ray Diffraction Study of Zero-Valent Copper Formation in Supercritical Methanolcitations
- 2019Promotion mechanisms of Au supported on TiO2 in thermal- and photocatalytic glycerol conversioncitations
- 2018Functionally Graded (PbTe)1-x(SnTe)x Thermoelectricscitations
- 2017In Situ PDF Study of the Nucleation and Growth of Intermetallic PtPb Nanocrystalscitations
- 2017Supercritical flow synthesis of Pt1-xRux nanoparticles: comparative phase diagram study of nanostructure versus bulkcitations
- 2016Electron Density Analysis of the "O-O" Charge-Shift Bonding in Rubrene Endoperoxidecitations
- 2015A Novel Dual-Stage Hydrothermal Flow Reactor
Places of action
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article
In Situ PDF Study of the Nucleation and Growth of Intermetallic PtPb Nanocrystals
Abstract
<p>The mechanism of Pt and PtPb nanocrystal formation under supercritical ethanol conditions has been investigated by means of in situ X-ray total scattering and pair distribution function (PDF) analysis. The metal complex structures of two different platinum precursor solutions, chloroplatinic acid and Pt(acac)(2) (acac=acetylacetonate) provide atomic-scale detail about the nucleation mechanisms after initiation of the reaction with Pb(acac)(2) by heating. The stronger Pt-O chemical bonding in the Pt(acac)(2) precursor complex compared with the Pt-Cl bonding in the chloroplatinic acid precursor complex leads to a much slower reduction of the Pt center, and this allows more optimal co-reduction conditions providing a pathway for formation of phase-pure intermetallic PtPb product. The matching chemistry of the Pt(acac)(2) and Pb(acac)(2) precursors allow development of a facile continuous flow supercritical ethanol process for obtaining phase-pure hexagonal PtPb nanocrystals. The study thus highlights the importance of in situ studies in revealing atomic-scale information about nucleation mechanisms, which can be used in design of specific synthesis pathways, and the new continuous-flow process to obtain PtPb nanocrystals holds potential for large-scale production.</p>