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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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Palmer, Richard E.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2024Stabilization of 2D raft structures of Au nanoclusters with up to 60 atoms by a carbon supportcitations
- 2023Frame-by-frame observations of structure fluctuations in single mass-selected Au clusters using aberration-corrected electron microscopycitations
- 2023Core atoms escape from the shell: reverse segregation of Pb–Al core–shell nanoclusters via nanoscale melting
- 2023Fabrication of graphene nanoplatelets/MgAl-layered double hydroxide nanocomposites as efficient support for gold nanoparticles and their catalytic performance in 4-nitrophenol reduction
- 2020Synergistic Computational-Experimental Discovery of Highly Selective PtCu Nanocluster Catalysts for Acetylene Semihydrogenationcitations
- 2019Composition-Tuned Pt-Skinned PtNi Bimetallic Clusters as Highly Efficient Methanol Dehydrogenation Catalystscitations
- 2018Reduced sintering of mass-selected Au clusters on SiO2by alloying with Ti: An aberration-corrected STEM and computational studycitations
- 2018Reduced sintering of mass-selected Au clusters on SiO 2 by alloying with Ti: an aberration-corrected STEM and computational studycitations
- 2018Exposure of mass-selected bimetallic Pt–Ti nanoalloys to oxygen explored using scanning transmission electron microscopy and density functional theorycitations
- 2018Ultrafast Heat Flow in Heterostructures of Au Nanoclusters on Thin Films Atomic Disorder Induced by Hot Electronscitations
- 2015Structural analysis of a nanoparticle containing a lipid bilayer used for detergent-free extraction of membrane proteinscitations
- 2015Using size-selected gold clusters on graphene oxide films to aid cryo-transmission electron tomography alignmentcitations
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article
Stabilization of 2D raft structures of Au nanoclusters with up to 60 atoms by a carbon support
Abstract
Herein, the stabilization of 2D single‐atom high gold rafts containing up to ≈60 Au atoms on amorphous carbon, fabricated by sputtering of atoms and imaged by aberration‐corrected scanning transmission electron microscopy, is demonstrated. These rafts deviate from the established cluster transition from 2D to 3D Au structural motifs in free clusters, which occurs in the region of 10–14 atoms. The experimental findings by performing explicit ab initio calculations of Au n (n = 3–147) clusters on graphene are supported and the role of cluster–surface interactions in the stabilization of the 2D single‐atom high Au cluster rafts on graphene is revealed. The transition from equilibrium 2D–3D structures is delayed to n = 19, while metastable 2D single‐atom high rafts compete with 3D structures up to about n = 60 atoms. The catalytic activity of supported nanoclusters depends strongly on their structure (and carbon‐based supports are used for a number of reactions); therefore these results are relevant to the catalytic performance of nanocluster‐based catalysts.