Ligand Migration from Cluster to Support

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 ligand shell through controlled pre-treatment steps. Ho...

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Autores: Zhang, Bei, Sels, Annelies, Salassa, Giovanni|||0000-0002-2396-3884, Pollitt, Stephan, Truttmann, Vera, Rameshan, Christoph|||0000-0002-6340-4147, Llorca, Jordi|||0000-0002-7447-9582, Olszewski, Wojciech|||0000-0002-4682-4326, Rupprechter, Günther|||0000-0002-8040-1677, Bürgi, Thomas|||0000-0003-0906-082X, Barrabés, Noelia|||0000-0002-6018-3115
Tipo de recurso: artículo
Fecha de publicación:2018
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:202492
Acceso en línea:https://ddd.uab.cat/record/202492
https://dx.doi.org/urn:doi:10.1002/cctc.201801474
Access Level:acceso abierto
Palabra clave:Ligand effect
Nanocluster
Gold heterogeneous catalysis
X-ray Absorption
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spelling Ligand Migration from Cluster to SupportA Crucial Factor for Catalysis by Thiolate-protected Gold ClustersZhang, BeiSels, AnneliesSalassa, Giovanni|||0000-0002-2396-3884Pollitt, StephanTruttmann, VeraRameshan, Christoph|||0000-0002-6340-4147Llorca, Jordi|||0000-0002-7447-9582Olszewski, Wojciech|||0000-0002-4682-4326Rupprechter, Günther|||0000-0002-8040-1677Bürgi, Thomas|||0000-0003-0906-082XBarrabés, Noelia|||0000-0002-6018-3115Ligand effectNanoclusterGold heterogeneous catalysisX-ray AbsorptionThiolate 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 ligand shell through controlled pre-treatment steps. However, the interaction between the ligand shell and the oxide support, as well as ligand removal by oxidative pre-treatment, are still poorly understood. Typically, it was assumed that the thiolate ligands are simply converted into SO, CO and HO. Herein, we report the first detailed observation of sulfur ligand migration from Au to the oxide support upon deposition and oxidative pre-treatment, employing mainly S K-edge XANES. Consequently, thiolate ligand migration not only produces clean Au cluster surfaces but also the surrounding oxide support is modified by sulfur-containing species, with pronounced effects on catalytic properties. 22018-01-0120182018-01-01Articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/202492https://dx.doi.org/urn:doi:10.1002/cctc.201801474reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengMinisterio de Economía y Competitividad https://doi.org/10.13039/501100003329 ENE2015-63969-Ropen accesshttp://purl.org/coar/access_right/c_abf2Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.https://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:ddd.uab.cat:2024922026-06-06T12:50:31Z
dc.title.none.fl_str_mv Ligand Migration from Cluster to Support
A Crucial Factor for Catalysis by Thiolate-protected Gold Clusters
title Ligand Migration from Cluster to Support
spellingShingle Ligand Migration from Cluster to Support
Zhang, Bei
Ligand effect
Nanocluster
Gold heterogeneous catalysis
X-ray Absorption
title_short Ligand Migration from Cluster to Support
title_full Ligand Migration from Cluster to Support
title_fullStr Ligand Migration from Cluster to Support
title_full_unstemmed Ligand Migration from Cluster to Support
title_sort Ligand Migration from Cluster to Support
dc.creator.none.fl_str_mv Zhang, Bei
Sels, Annelies
Salassa, Giovanni|||0000-0002-2396-3884
Pollitt, Stephan
Truttmann, Vera
Rameshan, Christoph|||0000-0002-6340-4147
Llorca, Jordi|||0000-0002-7447-9582
Olszewski, Wojciech|||0000-0002-4682-4326
Rupprechter, Günther|||0000-0002-8040-1677
Bürgi, Thomas|||0000-0003-0906-082X
Barrabés, Noelia|||0000-0002-6018-3115
author Zhang, Bei
author_facet Zhang, Bei
Sels, Annelies
Salassa, Giovanni|||0000-0002-2396-3884
Pollitt, Stephan
Truttmann, Vera
Rameshan, Christoph|||0000-0002-6340-4147
Llorca, Jordi|||0000-0002-7447-9582
Olszewski, Wojciech|||0000-0002-4682-4326
Rupprechter, Günther|||0000-0002-8040-1677
Bürgi, Thomas|||0000-0003-0906-082X
Barrabés, Noelia|||0000-0002-6018-3115
author_role author
author2 Sels, Annelies
Salassa, Giovanni|||0000-0002-2396-3884
Pollitt, Stephan
Truttmann, Vera
Rameshan, Christoph|||0000-0002-6340-4147
Llorca, Jordi|||0000-0002-7447-9582
Olszewski, Wojciech|||0000-0002-4682-4326
Rupprechter, Günther|||0000-0002-8040-1677
Bürgi, Thomas|||0000-0003-0906-082X
Barrabés, Noelia|||0000-0002-6018-3115
author2_role author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Ligand effect
Nanocluster
Gold heterogeneous catalysis
X-ray Absorption
topic Ligand effect
Nanocluster
Gold heterogeneous catalysis
X-ray Absorption
description 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 ligand shell through controlled pre-treatment steps. However, the interaction between the ligand shell and the oxide support, as well as ligand removal by oxidative pre-treatment, are still poorly understood. Typically, it was assumed that the thiolate ligands are simply converted into SO, CO and HO. Herein, we report the first detailed observation of sulfur ligand migration from Au to the oxide support upon deposition and oxidative pre-treatment, employing mainly S K-edge XANES. Consequently, thiolate ligand migration not only produces clean Au cluster surfaces but also the surrounding oxide support is modified by sulfur-containing species, with pronounced effects on catalytic properties.
publishDate 2018
dc.date.none.fl_str_mv 2
2018-01-01
2018
2018-01-01
dc.type.none.fl_str_mv Article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://ddd.uab.cat/record/202492
https://dx.doi.org/urn:doi:10.1002/cctc.201801474
url https://ddd.uab.cat/record/202492
https://dx.doi.org/urn:doi:10.1002/cctc.201801474
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 ENE2015-63969-R
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Dipòsit Digital de Documents de la UAB
instname:Universitat Autònoma de Barcelona
instname_str Universitat Autònoma de Barcelona
reponame_str Dipòsit Digital de Documents de la UAB
collection Dipòsit Digital de Documents de la UAB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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