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Lévy A, De Anda Villa M, Laurens G, Blanchet V, Bozek J, Gaudin J, Lamour E, Macé S, Mignon P, Milosavljević AR, Nicolas C, Patanen M, Prigent C, Robert E, Steydli S, Trassinelli M, Vernhet D, Veteläinen O, Amans D. Surface Chemistry of Gold Nanoparticles Produced by Laser Ablation in Pure and Saline Water. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:5783-5794. [PMID: 33939435 DOI: 10.1021/acs.langmuir.1c00092] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
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.
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Affiliation(s)
- Anna Lévy
- Institut des Nanosciences de Paris, Sorbonne Université, Campus Pierre et Marie Curie, CNRS UMR7588, 75005 Paris, France
| | - Manuel De Anda Villa
- Institut des Nanosciences de Paris, Sorbonne Université, Campus Pierre et Marie Curie, CNRS UMR7588, 75005 Paris, France
| | - Gaétan Laurens
- Université Claude Bernard Lyon 1, UMR5306 CNRS, Institut Lumière Matière, University of Lyon, F-69622 Villeurbanne, France
| | - Valérie Blanchet
- CNRS, CEA, CELIA (Centre Lasers Intenses et Applications), University of Bordeaux, UMR5107, F-33405 Talence, France
| | - John Bozek
- L'Orme des Merisiers, Synchrotron SOLEIL, Saint-Aubin, BP 48, F-91192 Gif-sur-Yvette Cedex, France
| | - Jérôme Gaudin
- CNRS, CEA, CELIA (Centre Lasers Intenses et Applications), University of Bordeaux, UMR5107, F-33405 Talence, France
| | - Emily Lamour
- Institut des Nanosciences de Paris, Sorbonne Université, Campus Pierre et Marie Curie, CNRS UMR7588, 75005 Paris, France
| | - Stéphane Macé
- Institut des Nanosciences de Paris, Sorbonne Université, Campus Pierre et Marie Curie, CNRS UMR7588, 75005 Paris, France
| | - Pierre Mignon
- Université Claude Bernard Lyon 1, UMR5306 CNRS, Institut Lumière Matière, University of Lyon, F-69622 Villeurbanne, France
| | | | - Christophe Nicolas
- L'Orme des Merisiers, Synchrotron SOLEIL, Saint-Aubin, BP 48, F-91192 Gif-sur-Yvette Cedex, France
| | - Minna Patanen
- Nano and Molecular Systems Research Unit, Faculty of Science, University of Oulu, P.O. Box 3000, FI-90014 Oulu, Finland
| | - Christophe Prigent
- Institut des Nanosciences de Paris, Sorbonne Université, Campus Pierre et Marie Curie, CNRS UMR7588, 75005 Paris, France
| | - Emmanuel Robert
- L'Orme des Merisiers, Synchrotron SOLEIL, Saint-Aubin, BP 48, F-91192 Gif-sur-Yvette Cedex, France
| | - Sébastien Steydli
- Institut des Nanosciences de Paris, Sorbonne Université, Campus Pierre et Marie Curie, CNRS UMR7588, 75005 Paris, France
| | - Martino Trassinelli
- Institut des Nanosciences de Paris, Sorbonne Université, Campus Pierre et Marie Curie, CNRS UMR7588, 75005 Paris, France
| | - Dominique Vernhet
- Institut des Nanosciences de Paris, Sorbonne Université, Campus Pierre et Marie Curie, CNRS UMR7588, 75005 Paris, France
| | - Onni Veteläinen
- Nano and Molecular Systems Research Unit, Faculty of Science, University of Oulu, P.O. Box 3000, FI-90014 Oulu, Finland
| | - David Amans
- Université Claude Bernard Lyon 1, UMR5306 CNRS, Institut Lumière Matière, University of Lyon, F-69622 Villeurbanne, France
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Brown MA, Redondo AB, Sterrer M, Winter B, Pacchioni G, Abbas Z, van Bokhoven JA. Measure of surface potential at the aqueous-oxide nanoparticle interface by XPS from a liquid microjet. NANO LETTERS 2013; 13:5403-7. [PMID: 24124920 DOI: 10.1021/nl402957y] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
We show that the surface potential at a water-oxide nanoparticle (NP) interface, long considered an immeasurable direct quantity, can be measured by X-ray photoelectron spectroscopy (XPS) from a liquid microjet. This new method does not require a priori knowledge of the particles' surface structure or of the ion distribution throughout the electrical double layer for its interpretation and can be applied to any colloidal suspension independent of composition, particle size and shape, and solvent. We demonstrate the application for aqueous suspensions of 9 nm colloidal silica (SiO2) at pH 0.3 and 10.0, where the surface potential changes from positive to negative. The experimental results are compared with calculated surface potentials based on Guoy-Chapman theory and are shown to be in good agreement.
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Affiliation(s)
- Matthew A Brown
- Institute for Chemical and Bioengineering, ETH Zürich , CH-8093 Zurich, Switzerland
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Branda MM, Di Valentin C, Pacchioni G. NO and NO2 Adsorption on Terrace, Step, and Corner Sites of the BaO Surface from DFT Calculations. J Phys Chem B 2004. [DOI: 10.1021/jp035862b] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Maria Marta Branda
- Dipartimento di Scienza dei Materiali, Università di Milano-Bicocca, and Istituto Nazionale per la Fisica della Materia, via R. Cozzi, 53 - I-20125 Milano, Italy
| | - Cristiana Di Valentin
- Dipartimento di Scienza dei Materiali, Università di Milano-Bicocca, and Istituto Nazionale per la Fisica della Materia, via R. Cozzi, 53 - I-20125 Milano, Italy
| | - Gianfranco Pacchioni
- Dipartimento di Scienza dei Materiali, Università di Milano-Bicocca, and Istituto Nazionale per la Fisica della Materia, via R. Cozzi, 53 - I-20125 Milano, Italy
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Lopez N, Illas F, Pacchioni G. Adsorption of Cu, Pd, and Cs Atoms on Regular and Defect Sites of the SiO2 Surface. J Am Chem Soc 1999. [DOI: 10.1021/ja981753c] [Citation(s) in RCA: 83] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nuria Lopez
- Contribution from the Istituto Nazionale di Fisica della Materia, Dipartimento di Scienza dei Materiali, Università di Milano, via Emanueli, 15, 20126 Milano, Italy, and Departament de Quimica Fisica, Universitat de Barcelona, Marti i Franques 1, 08028 Barcelona, Spain
| | - Francesc Illas
- Contribution from the Istituto Nazionale di Fisica della Materia, Dipartimento di Scienza dei Materiali, Università di Milano, via Emanueli, 15, 20126 Milano, Italy, and Departament de Quimica Fisica, Universitat de Barcelona, Marti i Franques 1, 08028 Barcelona, Spain
| | - Gianfranco Pacchioni
- Contribution from the Istituto Nazionale di Fisica della Materia, Dipartimento di Scienza dei Materiali, Università di Milano, via Emanueli, 15, 20126 Milano, Italy, and Departament de Quimica Fisica, Universitat de Barcelona, Marti i Franques 1, 08028 Barcelona, Spain
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