Lévy, A., De Anda Villa, M., Laurens, G., Blanchet, V., Bozek, J., Gaudin, J., Lamour, E., Macé, S., Mignon, P., Milosavljević, A. R., Nicolas, C., Patanen, M., Prigent, C., Robert, E., Steydli, S., Trassinelli, M., Vernhet, D., Veteläinen, O., & Amans, D. (2021). Surface Chemistry of Gold Nanoparticles Produced by Laser Ablation in Pure and Saline Water. Langmuir, 37(19), 5783–5794. https://doi.org/10.1021/acs.langmuir.1c00092
Surface chemistry of gold nanoparticles produced by laser ablation in pure and saline water
|Author:||Lévy, Anna1; De Anda Villa, Manuel1; Laurens, Gaétan2;|
1Institut des Nanosciences de Paris, Sorbonne Université, Campus Pierre et Marie Curie, CNRS UMR7588, 75005 Paris, France
2Université Claude Bernard Lyon 1, UMR5306 CNRS, Institut Lumière Matière, University of Lyon, F-69622 Villeurbanne, France
3CNRS, CEA, CELIA (Centre Lasers Intenses et Applications), University of Bordeaux, UMR5107, F-33405 Talence, France
4L'Orme des Merisiers, Synchrotron SOLEIL, Saint-Aubin, BP 48, F-91192 Gif-sur-Yvette Cedex, France
5Nano and Molecular Systems Research Unit, Faculty of Science, University of Oulu, P.O. Box 3000, FI-90014 Oulu, Finland
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe2021050629055
American Chemical Society,
|Publish Date:|| 2022-05-03
Pulsed laser ablation in liquid (PLAL) is a powerful method for producing nanoparticle colloids with a long-term stability despite the absence of stabilizing organic agents. The colloid stability involves different reactivities and chemical equilibria with complex ionic-specific effects at the nanoparticle/solvent interface which must be strongly influenced by their chemical composition. In this work, the surface composition of PLAL-produced gold nanoparticles in alkaline and saline (NaBr) water is investigated by X-ray photoelectron spectroscopy on free-flying nanoparticles, exempt from any substrate or radiation damage artifact. The Au 4f photoelectron spectra with a depth profiling investigation are used to evaluate the degree of nanoparticle surface oxidation. In alkaline water, the results preclude any surface oxidation contrary to the case of nanoparticles produced in NaBr solution. In addition, the analysis of Br 3d core-level photoelectron spectra agrees with a clear signature of Br on the nanoparticle surface, which is confirmed by a specific valence band feature. This experimental study is supported by DFT calculations, evaluating the energy balance of halide adsorption on different configurations of gold surfaces including oxidation or adsorbed salts.
|Pages:||5783 - 5794|
|Type of Publication:||
A1 Journal article – refereed
|Field of Science:||
114 Physical sciences
116 Chemical sciences
The acknowledgements also include financial support from the Mexican Council for Science and Technology (grant 611509) and PLAS@PAR LabEx (Cluster of Excellence in Plasmas Physics in Paris, which received financial state aid of the programme “Investissements d’avenir” under the reference ANR-11-IDEX-0004-02). M.P. and O.V. acknowledge Academy of Finland grant No. 296338 and InStreams profiling grant no. 326291.
|Academy of Finland Grant Number:||
296338 (Academy of Finland Funding decision)
326291 (Academy of Finland Funding decision)
This document is the Accepted Manuscript version of a Published Work that appeared in final form in Langmuir, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see [insert ACS Articles on Request author-directed link to Published Work, see https://doi.org/10.1021/acs.langmuir.1c00092.