Dynamics of RS-(Au-SR)x staple motifs on metal surfaces: from nanoclusters to 2D surfaces

Pilar Carro; Evangelina Pensa; Tim Albrecht; Roberto C Salvarezza

doi:10.1021/acs.jpcc.9b11369

Dynamics of RS-(Au-SR)x staple motifs on metal surfaces: from nanoclusters to 2D surfaces

Pilar Carro, Evangelina Pensa, Tim Albrecht, Roberto C Salvarezza

Chemistry

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

140 Downloads (Pure)

Abstract

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 DFT 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.

Original language	English
Pages (from-to)	5452-5459
Journal	Journal of Physical Chemistry C
Volume	124
Issue number	9
DOIs	https://doi.org/10.1021/acs.jpcc.9b11369
Publication status	Published - 6 Feb 2020

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
General Energy
Physical and Theoretical Chemistry
Surfaces, Coatings and Films

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This document is the Accepted Manuscript version of a Published Work that appeared in final form in Journal of Physical Chemistry C, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/abs/10.1021/acs.jpcc.9b11369
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Cite this

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AB - 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 DFT 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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Dynamics of RS-(Au-SR)x staple motifs on metal surfaces: from nanoclusters to 2D surfaces

Abstract

ASJC Scopus subject areas

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