Influence of capping on the atomistic arrangement in palladium nanoparticles at room temperature

Gastón Corthey; Jimena A. Olmos-Asar; Gilberto Casillas; Marcelo M. Mariscal; Sergio Mejía-Rosales; Julio C. Azcárate; Eduardo Larios; Miguel José-Yacamán; Roberto C. Salvarezza; Mariano H. Fonticelli

doi:10.1021/jp5083505

Influence of capping on the atomistic arrangement in palladium nanoparticles at room temperature

Gastón Corthey, Jimena A. Olmos-Asar, Gilberto Casillas, Marcelo M. Mariscal, Sergio Mejía-Rosales, Julio C. Azcárate, Eduardo Larios, Miguel José-Yacamán, Roberto C. Salvarezza, Mariano H. Fonticelli

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22 Scopus citations

Abstract

The role that protecting molecules have on the way that palladium atoms arrange themselves in nanoparticles prepared at room temperature was studied by the analysis of aberration-corrected scanning transmission electron microscopy images and atomistic Langevin dynamics simulations. It was found that the arrangement of Pd atoms is less ordered in thiolate-protected nanoparticles than in amine-protected ones. The experimental and theoretical data showed that the disorder in ∼3 nm thiolate-protected particles is promoted by the strong S-Pd bond in the sulfide layer that surrounds the nanoparticles.

Original language	English (US)
Pages (from-to)	24641-24647
Number of pages	7
Journal	Journal of Physical Chemistry C
Volume	118
Issue number	42
DOIs	https://doi.org/10.1021/jp5083505
State	Published - Oct 23 2014
Externally published	Yes

ASJC Scopus subject areas

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

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abstract = "The role that protecting molecules have on the way that palladium atoms arrange themselves in nanoparticles prepared at room temperature was studied by the analysis of aberration-corrected scanning transmission electron microscopy images and atomistic Langevin dynamics simulations. It was found that the arrangement of Pd atoms is less ordered in thiolate-protected nanoparticles than in amine-protected ones. The experimental and theoretical data showed that the disorder in ∼3 nm thiolate-protected particles is promoted by the strong S-Pd bond in the sulfide layer that surrounds the nanoparticles.",

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T1 - Influence of capping on the atomistic arrangement in palladium nanoparticles at room temperature

AU - Corthey, Gastón

AU - Olmos-Asar, Jimena A.

AU - Casillas, Gilberto

AU - Mariscal, Marcelo M.

AU - Mejía-Rosales, Sergio

AU - Azcárate, Julio C.

AU - Larios, Eduardo

AU - José-Yacamán, Miguel

AU - Salvarezza, Roberto C.

AU - Fonticelli, Mariano H.

PY - 2014/10/23

Y1 - 2014/10/23

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AB - The role that protecting molecules have on the way that palladium atoms arrange themselves in nanoparticles prepared at room temperature was studied by the analysis of aberration-corrected scanning transmission electron microscopy images and atomistic Langevin dynamics simulations. It was found that the arrangement of Pd atoms is less ordered in thiolate-protected nanoparticles than in amine-protected ones. The experimental and theoretical data showed that the disorder in ∼3 nm thiolate-protected particles is promoted by the strong S-Pd bond in the sulfide layer that surrounds the nanoparticles.

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Influence of capping on the atomistic arrangement in palladium nanoparticles at room temperature

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