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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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Johansson, Jonas
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (21/21 displayed)
- 2024The need for nonuniform risk acceptability across climate change scenarioscitations
- 2021Improved quality of InSb-on-insulator microstructures by flash annealing into meltcitations
- 2021Surface energy driven miscibility gap suppression during nucleation of III-V ternary alloyscitations
- 2021Sintering Mechanism of Core@Shell Metal@Metal-Oxide Nanoparticlescitations
- 2021Aerotaxycitations
- 2020Pseudo-particle continuum modelling of nanowire growth in aerotaxy
- 2020Limits of III-V Nanowire Growth Based on Droplet Dynamicscitations
- 2018Self-assembled InN quantum dots on side facets of GaN nanowirescitations
- 2017Composition of Gold Alloy Seeded InGaAs Nanowires in the Nucleation Limited Regimecitations
- 2016Length Distributions of Nanowires Growing by Surface Diffusioncitations
- 2016Quaternary Chemical Potentials for Gold-Catalyzed Growth of Ternary InGaAs Nanowirescitations
- 2015Phase Transformation in Radially Merged Wurtzite GaAs Nanowires.citations
- 2015Size- and shape-dependent phase diagram of In–Sb nano-alloyscitations
- 2013Geometric model for metalorganic vapour phase epitaxy of dense nanowire arrayscitations
- 2012Combinatorial Approaches to Understanding Polytypism in III-V Nanowires.citations
- 2011Growth of straight InAs-on-GaAs nanowire heterostructurescitations
- 2011Parameter space mapping of InAs nanowire crystal structurecitations
- 2010Control of III-V nanowire crystal structure by growth parameter tuningcitations
- 2009Effects of Supersaturation on the Crystal Structure of Gold Seeded III-V Nanowirescitations
- 2008Effects of growth conditions on the crystal structure of gold-seeded GaP nanowirescitations
- 2008Focused ion beam fabrication of novel core-shell nanowire structurescitations
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article
Sintering Mechanism of Core@Shell Metal@Metal-Oxide Nanoparticles
Abstract
Metal oxide shell layers are promising candidates to improve the performance of metal nanoparticles (NPs) in various applications. However, despite a significant amount of experimental work on metal@metal oxide (M@MO) NPs, computational modeling is scarce, particularly on the sintering mechanism, which plays a crucial role in both the synthesis and performance of NPs. Here, we present atomic diffusion and sintering dynamics of M@MO NPs investigated using molecular dynamics based on the ReaxFF potentials. The coalescence process of the metal NPs with amorphous oxide shell is mainly facilitated by the relatively mobile surface atoms and grain-boundary-like diffusion, and thus, it is similar to reported mechanisms for crystalline nanoparticles. Intriguingly, atomic trajectory tracing reveals that surface diffusion is highly localized, contrary to the common understanding of freely moving high-mobility surface atoms. These atomic descriptions provide valuable insights for designing functional NPs with oxide layers and establishing more accurate accounts of the sintering mechanism.