| 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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Bøjesen, Espen Drath
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2024Elucidating Structural Disorder in Ultra-Thin Bi-Rich Bismuth Oxyhalide Photocatalystscitations
- 2024Elucidating Structural Disorder in Ultra-Thin Bi-Rich Bismuth Oxyhalide Photocatalystscitations
- 2024Non-monotonic dependence of high-temperature stability of stone wool fibres on pre-oxidation time and temperaturecitations
- 2024Non-monotonic dependence of high-temperature stability of stone wool fibres on pre-oxidation time and temperaturecitations
- 2023The more the better:on the formation of single-phase high entropy alloy nanoparticles as catalysts for the oxygen reduction reactioncitations
- 2022Volume imaging by tracking sparse topological features in electron micrograph tilt series
- 2020Probing the validity of the spinel inversion model: a combined SPXRD, PDF, EXAFS and NMR study of $ZnAl_{2}O_{4}$citations
- 2020Probing the validity of the spinel inversion model:a combined SPXRD, PDF, EXAFS and NMR study of ZnAl 2 O 4citations
- 2017In Situ PDF Study of the Nucleation and Growth of Intermetallic PtPb Nanocrystalscitations
- 2016Crystal structure, microstructure and electrochemical properties of hydrothermally synthesised LiMn2O4citations
- 2016Towards atomistic understanding of polymorphism in the solvothermal synthesis of ZrO2 nanoparticlescitations
- 2014Characterization of the interface between an Fe–Cr alloy and the p-type thermoelectric oxide Ca3Co4O9citations
- 2014Characterization of the interface between an Fe–Cr alloy and the p -type thermoelectric oxide Ca 3 Co 4 O 9citations
- 2013In-situ synchrotron PXRD study of spinel LiMn2O4 nanocrystal formation
- 2013IN-SITU SYNCHROTRON PXRD STUDY OF SPINEL TYPE LiMn2O4 NANOCRYSTAL FORMATION
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>