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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.1c00092
|2 doi
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|a pubmed24n1083.xml
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|a (DE-627)NLM324924801
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|a (NLM)33939435
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Lévy, Anna
|e verfasserin
|4 aut
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| 245 |
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|a Surface Chemistry of Gold Nanoparticles Produced by Laser Ablation in Pure and Saline Water
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|c 2021
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Revised 18.05.2021
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a 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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|a Journal Article
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|a De Anda Villa, Manuel
|e verfasserin
|4 aut
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| 700 |
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|a Laurens, Gaétan
|e verfasserin
|4 aut
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| 700 |
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|a Blanchet, Valérie
|e verfasserin
|4 aut
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| 700 |
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|a Bozek, John
|e verfasserin
|4 aut
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|a Gaudin, Jérôme
|e verfasserin
|4 aut
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|a Lamour, Emily
|e verfasserin
|4 aut
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| 700 |
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|a Macé, Stéphane
|e verfasserin
|4 aut
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|a Mignon, Pierre
|e verfasserin
|4 aut
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|a Milosavljević, Aleksandar R
|e verfasserin
|4 aut
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| 700 |
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|a Nicolas, Christophe
|e verfasserin
|4 aut
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| 700 |
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|a Patanen, Minna
|e verfasserin
|4 aut
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| 700 |
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|a Prigent, Christophe
|e verfasserin
|4 aut
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| 700 |
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|a Robert, Emmanuel
|e verfasserin
|4 aut
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|a Steydli, Sébastien
|e verfasserin
|4 aut
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|a Trassinelli, Martino
|e verfasserin
|4 aut
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|a Vernhet, Dominique
|e verfasserin
|4 aut
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|a Veteläinen, Onni
|e verfasserin
|4 aut
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|a Amans, David
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1999
|g 37(2021), 19 vom: 18. Mai, Seite 5783-5794
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
1 |
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|g volume:37
|g year:2021
|g number:19
|g day:18
|g month:05
|g pages:5783-5794
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|u http://dx.doi.org/10.1021/acs.langmuir.1c00092
|3 Volltext
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|d 37
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|c 05
|h 5783-5794
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