Dynamics of RS-(Au-SR)ₓ Staple Motifs on Metal Surfaces: From Nanoclusters to 2D Surfaces
Limited stability of metal nanoparticles hinders their long-term uses and applications. For metal nanoclusters, this is even more critical, as physicochemical properties rely on the structure of only a few hundred atoms. Here, we study the irreversible change that Au₂₅(SR)₁₈ suffers upon interaction...
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| Autores principales: | , , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
2020
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/124068 |
| Aporte de: |
| Sumario: | Limited stability of metal nanoparticles hinders their long-term uses and applications. For metal nanoclusters, this is even more critical, as physicochemical properties rely on the structure of only a few hundred atoms. Here, we study the irreversible change that Au₂₅(SR)₁₈ suffers upon interaction with 2D metal surfaces. Experimental and density functional theory results allow us to identify the triggering factors of the decomposition process. Our thermodynamic-based approach can be extended to other metal nanocluster/substrates, turning it into a useful tool for predicting the nanoscale stability of these systems. |
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