Article Dans Une Revue Physical Chemistry Chemical Physics Année : 2025

Modulating the surface chemistry of gold nanoparticles produced via laser ablation in liquids by favored oxidative processes in the presence of Br anions

Anna Lévy
John Bozek

Résumé

In this study, we explore the influence of bromide anions concentration on the surface chemistry of colloidal gold nanoparticles synthesized via pulsed laser ablation in liquids (PLAL). Using X-ray photoelectron spectroscopy (XPS) in a controlled environment, by probing a beam of free-standing gold nanoparticles, we quantitatively characterize the surface composition of the nanoparticles, revealing that bromide adsorption significantly contributes to surface oxidation independently of counterion type and pH for alkaline solution. Additionally, our findings demonstrate the adjustability of halogen coverage post-synthesis, offering a versatile method for controlling nanoparticle properties.

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Recherche Data Gouv

Cite 10.57745/19IVNV Jeu de données Levy, Anna; Blanchet, Valérie; Bozek, John; Cabailh, Gregory; De Anda Villa, Manuel; Gaudin, Jerome; Lamour, Emily; Macé, Stéphane; Aleksandar R. Milosavljevic; Prigent, Christophe; Robert, Emmanuel; Steydli, Sebastien; Trassinelli, Martino; Vernhet, Dominique; Amans, David, 2025, "Halogen-driven adjustment of the colloidal stability of gold nanoparticles produced by laser ablation in liquids", https://doi.org/10.57745/19IVNV, Recherche Data Gouv, V1

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hal-04973542 , version 1 (03-03-2025)

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Anna Lévy, Valérie Blanchet, John Bozek, Gregory Cabailh, Manuel de Anda Villa, et al.. Modulating the surface chemistry of gold nanoparticles produced via laser ablation in liquids by favored oxidative processes in the presence of Br anions. Physical Chemistry Chemical Physics, 2025, 27 (11), pp.5623-5630. ⟨10.1039/D4CP03586K⟩. ⟨hal-04973542⟩
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