Výsledky vyhledávání - "Annelies Sels"

Ligand Migration from Cluster to Support : A Crucial Factor for Catalysis by Thiolate-protected Gold Clusters

Autor: Stephan Pollitt, Günther Rupprechter, Christoph Rameshan, Giovanni Salassa, Noelia Barrabés, Bei Zhang, Wojciech Olszewski, Thomas Bürgi, Vera Truttmann, Jordi Llorca, Annelies Sels

Publikováno v: Recercat: Dipósit de la Recerca de Catalunya
Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Recercat. Dipósit de la Recerca de Catalunya
instname
ChemCatChem, Vol. 10, No 23 (2018) pp. 5372-5376
Chemcatchem
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Dipòsit Digital de Documents de la UAB
Universitat Autònoma de Barcelona

Thiolate protected metal clusters are valuable precursors for the design of tailored nanosized catalysts. Their performance can be tuned precisely at atomic level, e.g. by the configuration/ type of ligands or by partial/complete removal of the ligan

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4e750708f6c6c0987badc670efea0ead
http://hdl.handle.net/2072/434678

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On the mechanism of rapid metal exchange between thiolate-protected gold and gold/silver clusters: a time-resolved in situ XAFS study

Autor: Thomas Bürgi, Günther Rupprechter, Yuming Wang, Noelia Barrabés, Bei Zhang, Giovanni Salassa, Rania Kazan, Annelies Sels, Stephan Pollitt, Olga V. Safonova

Publikováno v: Physical Chemistry Chemical Physics, Vol. 20, No 7 (2018) pp. 5312-5318

The fast metal exchange reaction between Au38 and AgxAu38−x nanoclusters in solution at −20 °C has been studied by in situ X-ray absorption spectroscopy (time resolved quick XAFS) in transmission mode. A cell was designed for this purpose consis

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d1ce39568023b567ce6df078e4e8faf
https://doi.org/10.1039/c7cp08272j

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Dynamic Nature of Thiolate Monolayer in Au25(SR)18 Nanoclusters

Autor: Thomas Bürgi, Giovanni Salassa, Annelies Sels, Fabrizio Mancin

Publikováno v: ACS Nano, Vol. 11, No 12 (2017) pp. 12609-12614

Thiolate monolayer, protecting a gold nanocluster, is responsible for its chemical behavior and interaction with the environment. Understanding the parameters that influence the stability and reactivity of the monolayer will enable its precise and co

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5153ba4b68e814e92f11ce8379043f90
https://doi.org/10.1021/acsnano.7b06999

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Vibrational Circular Dichroism of Thiolate-Protected Au25 Clusters: Accurate Prediction of Spectra and Chirality Transfer within the Mixed Ligand Shell

Autor: Wybren Jan Buma, Thomas Bürgi, Valentin P. Nicu, Raymond Azoulay, Annelies Sels, Mark A. J. Koenis

Publikováno v: Journal of Physical Chemistry C, 123(36), 22586-22594. American Chemical Society
Journal of Physical Chemistry. C, Vol. 123, No 36 (2019) pp. 22586-22594

We have prepared Au25(PET)18-2x((R)-FBI-NAS)x(PET = 2-phenylethylthiol, (R)-FBINAS = (R)-5,5',6,6',7,7',8,8'-octafluoro-[1,1'-binaphthalene]-2,2'-dithiol) mixed ligand shell clusters via ligand exchange. Two fractions with different composition of th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e147bf2b4a2b7b7fc1198666f093658d
https://dare.uva.nl/personal/pure/en/publications/vibrational-circular-dichroism-of-thiolateprotected-au25-clusters-accurate-prediction-of-spectra-and-chirality-transfer-within-the-mixed-ligand-shell(e905b880-fd2f-4e50-9681-2be4f4142e96).html

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Ligand and support effects on the reactivity and stability of Au38(SR)24 catalysts in oxidation reactions

Autor: Thomas Bürgi, Klaudia Hradil, Günther Rupprechter, Clara Garcia, Christoph Rameshan, Annelies Sels, Giovanni Salassa, Bei Zhang, Noelia Barrabés, Jordi Llorca

Publikováno v: Catalysis Communications, Vol. 130, No 105768 (2019)
Recercat. Dipósit de la Recerca de Catalunya
instname
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

Thiolate protected metal nanoclusters are emerging materials for the preparation of atomically defined heterogeneous catalysts. Recently it was revealed that the ligands migrated to the support upon cluster deposition, which influences the catalytic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::75ed920481a2610e775505690685e885
https://archive-ouverte.unige.ch/unige:141611

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Covalently bonded multimers of Au

Autor: Annelies, Sels, Giovanni, Salassa, Fabrice, Cousin, Lay-Theng, Lee, Thomas, Bürgi

Publikováno v: Nanoscale. 10(26)

Aromatic dithiol linkers were used to prepare aggregates of Au25(SR)18 clusters (SR: thiolate) via ligand exchange reactions. Fractions of different aggregate sizes were separated by size exclusion chromatography (SEC). The aggregates were characteri

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::e31dd6d86455b8b55f916e81b9629966
https://pubmed.ncbi.nlm.nih.gov/29946605

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Dynamic Nature of Thiolate Monolayer in Au

Autor: Giovanni, Salassa, Annelies, Sels, Fabrizio, Mancin, Thomas, Bürgi

Publikováno v: ACS nano. 11(12)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::6f42120463b44ff15be5490e03826e4f
https://pubmed.ncbi.nlm.nih.gov/29166559

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Structural Investigation of the Ligand Exchange Reaction with Rigid Dithiol on Doped (Pt, Pd) Au25 Clusters

Autor: Giovanni Salassa, Stephan Pollitt, Günther Rupprechter, Clara Guglieri, Noelia Barrabés, Annelies Sels, Thomas Bürgi

Publikováno v: Journal of Physical Chemistry. C, Vol. 121, No 20 (2017) pp. 10919-10926

The ligand exchange reaction between heteroatom doped (Pd, Pt) Au25(2-PET)18 (2-PET = 2-phenylethylthiolate) clusters and enantiopure 1,1′-binaphthyl-2,2′-dithiol (BINAS) was monitored in situ using chiral high-performance liquid chromatography (

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a486107ee60086b0d96a6b4e0137a32d
https://archive-ouverte.unige.ch/unige:94915

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