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Rothermel N, Limbach HH, del Rosal I, Poteau R, Mencia G, Chaudret B, Buntkowsky G, Gutmann T. Surface reactions of ammonia on ruthenium nanoparticles revealed by 15N and 13C solid-state NMR. Catal Sci Technol 2021. [DOI: 10.1039/d0cy02476g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Ruthenium nanoparticles (Ru NPs) stabilized by bis-diphenylphosphinobutane (dppb) and surface-saturated with hydrogen have been exposed to gaseous 15NH3 and 13CO and studied using solid-state NMR and DFT calculations.
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Affiliation(s)
- Niels Rothermel
- Technical University of Darmstadt
- Institute of Inorganic and Physical Chemistry
- D-64287 Darmstadt
- Germany
| | - Hans-Heinrich Limbach
- Free Universität of Berlin
- Institute of Chemistry and Biochemistry
- D-14195 Berlin
- Germany
| | - Iker del Rosal
- LPCNO
- INSA-CNRS-UPS
- Institut National des Sciences Appliquées
- Université de Toulouse
- 31077 Toulouse
| | - Romuald Poteau
- LPCNO
- INSA-CNRS-UPS
- Institut National des Sciences Appliquées
- Université de Toulouse
- 31077 Toulouse
| | - Gabriel Mencia
- LPCNO
- INSA-CNRS-UPS
- Institut National des Sciences Appliquées
- Université de Toulouse
- 31077 Toulouse
| | - Bruno Chaudret
- LPCNO
- INSA-CNRS-UPS
- Institut National des Sciences Appliquées
- Université de Toulouse
- 31077 Toulouse
| | - Gerd Buntkowsky
- Technical University of Darmstadt
- Institute of Inorganic and Physical Chemistry
- D-64287 Darmstadt
- Germany
| | - Torsten Gutmann
- Technical University of Darmstadt
- Institute of Inorganic and Physical Chemistry
- D-64287 Darmstadt
- Germany
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2
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Casabianca LB. Solid-state nuclear magnetic resonance studies of nanoparticles. SOLID STATE NUCLEAR MAGNETIC RESONANCE 2020; 107:101664. [PMID: 32361159 DOI: 10.1016/j.ssnmr.2020.101664] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 03/06/2020] [Accepted: 04/02/2020] [Indexed: 05/24/2023]
Abstract
In this trends article, we review seminal and recent studies using static and magic-angle spinning solid-state NMR to study the structure of nanoparticles and ligands attached to nanoparticles. Solid-state NMR techniques including one-dimensional multinuclear NMR, cross-polarization, techniques for measuring dipolar coupling and internuclear distances, and multidimensional NMR have provided insight into the core-shell structure of nanoparticles as well as the structure of ligands on the nanoparticle surface. Hyperpolarization techniques, in particular solid-state dynamic nuclear polarization (DNP), have enabled detailed studies of nanoparticle core-shell structure and surface chemistry, by allowing unprecedented levels of sensitivity to be achieved. The high signal-to-noise afforded by DNP has allowed homonuclear and heteronuclear correlation experiments involving nuclei with low natural abundance to be performed in reasonable experimental times, which previously would not have been possible. The use of DNP to study nanoparticles and their applications will be a fruitful area of study in the coming years as well.
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Martín Morales E, Coppel Y, Lecante P, Del Rosal I, Poteau R, Esvan J, Sutra P, Philippot K, Igau A. When organophosphorus ruthenium complexes covalently bind to ruthenium nanoparticles to form nanoscale hybrid materials. Chem Commun (Camb) 2020; 56:4059-4062. [PMID: 32195508 DOI: 10.1039/d0cc00442a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A hybrid material made of mononuclear organophosphorus polypyridyl ruthenium complexes covalently bonded to ruthenium nanoparticles has been synthesized via a one-pot organometallic procedure and finely characterized. These results open new avenues to access unique hybrid transition metal nanomaterials.
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Affiliation(s)
- Elena Martín Morales
- Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, F-31077, Toulouse Cedex 04, France and Université de Toulouse, UPS, INPT, LCC, F-31077 Toulouse Cedex 04, France.
| | - Yannick Coppel
- Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, F-31077, Toulouse Cedex 04, France and Université de Toulouse, UPS, INPT, LCC, F-31077 Toulouse Cedex 04, France.
| | - Pierre Lecante
- CEMES-CNRS, 29 rue Jeanne Marvig BP4347, 31053 Toulouse Cedex, France
| | - Iker Del Rosal
- LPCNO (IRSAMC), Université de Toulouse, INSA, UPS, CNRS (UMR 5215), Institut National des Sciences Appliquées, 135 avenue de Rangueil, F-31077 Toulouse, France
| | - Romuald Poteau
- LPCNO (IRSAMC), Université de Toulouse, INSA, UPS, CNRS (UMR 5215), Institut National des Sciences Appliquées, 135 avenue de Rangueil, F-31077 Toulouse, France
| | - Jérôme Esvan
- CIRIMAT, Université de Toulouse, CNRS-INPT-UPS, 4 Allée Emile Monso, BP 44362, 31030 Toulouse, France
| | - Pierre Sutra
- Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, F-31077, Toulouse Cedex 04, France and Université de Toulouse, UPS, INPT, LCC, F-31077 Toulouse Cedex 04, France.
| | - Karine Philippot
- Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, F-31077, Toulouse Cedex 04, France and Université de Toulouse, UPS, INPT, LCC, F-31077 Toulouse Cedex 04, France.
| | - Alain Igau
- Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, F-31077, Toulouse Cedex 04, France and Université de Toulouse, UPS, INPT, LCC, F-31077 Toulouse Cedex 04, France.
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4
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Affiliation(s)
- M. Rosa Axet
- UPR8241, Université de Toulouse, UPS, INPT, CNRS, LCC (Laboratoire de Chimie de Coordination), 205 Route de NarbonneF-31077 Toulouse cedex 4, France
| | - Karine Philippot
- UPR8241, Université de Toulouse, UPS, INPT, CNRS, LCC (Laboratoire de Chimie de Coordination), 205 Route de NarbonneF-31077 Toulouse cedex 4, France
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5
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Rothermel N, Röther T, Ayvalı T, Martínez‐Prieto LM, Philippot K, Limbach H, Chaudret B, Gutmann T, Buntkowsky G. Reactions of D
2
with 1,4‐Bis(diphenylphosphino) butane‐Stabilized Metal Nanoparticles‐A Combined Gas‐phase NMR, GC‐MS and Solid‐state NMR Study. ChemCatChem 2019. [DOI: 10.1002/cctc.201801981] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Niels Rothermel
- TU DarmstadtEduard-Zintl-Institut für Anorganische und Physikalische Chemie Alarich-Weiss-Straße 4 64287 Darmstadt Germany
| | - Tobias Röther
- TU DarmstadtEduard-Zintl-Institut für Anorganische und Physikalische Chemie Alarich-Weiss-Straße 4 64287 Darmstadt Germany
| | - Tuğçe Ayvalı
- LCC-CNRS Université de Toulouse; CNRS 205 Route de Narbonne 31077 Toulouse France
- Wolfson Catalysis Centre; Department of ChemistryUniversity of Oxford Oxford OX1 3QR UK
| | | | - Karine Philippot
- LCC-CNRS Université de Toulouse; CNRS 205 Route de Narbonne 31077 Toulouse France
| | - Hans‐Heinrich Limbach
- TU DarmstadtEduard-Zintl-Institut für Anorganische und Physikalische Chemie Alarich-Weiss-Straße 4 64287 Darmstadt Germany
- Freie Universität BerlinInstitut für Chemie und Biochemie Takustr. 3 14195 Berlin Germany
| | - Bruno Chaudret
- Université de Toulouse; INSA, UPS, CNRS, LPCNO 135 avenue de Rangueil 31077 Toulouse France
| | - Torsten Gutmann
- TU DarmstadtEduard-Zintl-Institut für Anorganische und Physikalische Chemie Alarich-Weiss-Straße 4 64287 Darmstadt Germany
| | - Gerd Buntkowsky
- TU DarmstadtEduard-Zintl-Institut für Anorganische und Physikalische Chemie Alarich-Weiss-Straße 4 64287 Darmstadt Germany
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6
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Rothermel N, Bouzouita D, Röther T, de Rosal I, Tricard S, Poteau R, Gutmann T, Chaudret B, Limbach H, Buntkowsky G. Surprising Differences of Alkane C‐H Activation Catalyzed by Ruthenium Nanoparticles: Complex Surface‐Substrate Recognition? ChemCatChem 2018. [DOI: 10.1002/cctc.201801022] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Niels Rothermel
- Eduard-Zintl-Institut für Anorganische und Physikalische ChemieTechnische Universität Darmstadt Alarich-Weiss-Str. 8 Darmstadt 64287 Germany
| | - Donia Bouzouita
- Laboratoire de Physique et Chimie de Nano-Objets (LPCNO) UMR 5215 INSA-CNRS-UPSInstitut National des Sciences Appliquées 135 Avenue de Rangueil Toulouse 31077 France
| | - Tobias Röther
- Eduard-Zintl-Institut für Anorganische und Physikalische ChemieTechnische Universität Darmstadt Alarich-Weiss-Str. 8 Darmstadt 64287 Germany
| | - Iker de Rosal
- Laboratoire de Physique et Chimie de Nano-Objets (LPCNO) UMR 5215 INSA-CNRS-UPSInstitut National des Sciences Appliquées 135 Avenue de Rangueil Toulouse 31077 France
| | - Simon Tricard
- Laboratoire de Physique et Chimie de Nano-Objets (LPCNO) UMR 5215 INSA-CNRS-UPSInstitut National des Sciences Appliquées 135 Avenue de Rangueil Toulouse 31077 France
| | - Romuald Poteau
- Laboratoire de Physique et Chimie de Nano-Objets (LPCNO) UMR 5215 INSA-CNRS-UPSInstitut National des Sciences Appliquées 135 Avenue de Rangueil Toulouse 31077 France
| | - Torsten Gutmann
- Eduard-Zintl-Institut für Anorganische und Physikalische ChemieTechnische Universität Darmstadt Alarich-Weiss-Str. 8 Darmstadt 64287 Germany
| | - Bruno Chaudret
- Laboratoire de Physique et Chimie de Nano-Objets (LPCNO) UMR 5215 INSA-CNRS-UPSInstitut National des Sciences Appliquées 135 Avenue de Rangueil Toulouse 31077 France
| | - Hans‐Heinrich Limbach
- Institut für Chemie und BiochemieFreie Universität Berlin Takustr. 3 Berlin 14195 Germany
| | - Gerd Buntkowsky
- Eduard-Zintl-Institut für Anorganische und Physikalische ChemieTechnische Universität Darmstadt Alarich-Weiss-Str. 8 Darmstadt 64287 Germany
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7
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Mourdikoudis S, Pallares RM, Thanh NTK. Characterization techniques for nanoparticles: comparison and complementarity upon studying nanoparticle properties. NANOSCALE 2018; 10:12871-12934. [PMID: 29926865 DOI: 10.1039/c8nr02278j] [Citation(s) in RCA: 562] [Impact Index Per Article: 93.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Nanostructures have attracted huge interest as a rapidly growing class of materials for many applications. Several techniques have been used to characterize the size, crystal structure, elemental composition and a variety of other physical properties of nanoparticles. In several cases, there are physical properties that can be evaluated by more than one technique. Different strengths and limitations of each technique complicate the choice of the most suitable method, while often a combinatorial characterization approach is needed. In addition, given that the significance of nanoparticles in basic research and applications is constantly increasing, it is necessary that researchers from separate fields overcome the challenges in the reproducible and reliable characterization of nanomaterials, after their synthesis and further process (e.g. annealing) stages. The principal objective of this review is to summarize the present knowledge on the use, advances, advantages and weaknesses of a large number of experimental techniques that are available for the characterization of nanoparticles. Different characterization techniques are classified according to the concept/group of the technique used, the information they can provide, or the materials that they are destined for. We describe the main characteristics of the techniques and their operation principles and we give various examples of their use, presenting them in a comparative mode, when possible, in relation to the property studied in each case.
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Affiliation(s)
- Stefanos Mourdikoudis
- Biophysics Group, Department of Physics and Astronomy, University College London, London, WC1E 6BT, UK.
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8
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Lou S, Jiang H. Theoretical study of adsorption of organic phosphines on transition metal surfaces. Mol Phys 2018. [DOI: 10.1080/00268976.2018.1439189] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Shujie Lou
- College of Chemistry and Molecular Engineering, Peking University, Beijing, China
| | - Hong Jiang
- College of Chemistry and Molecular Engineering, Peking University, Beijing, China
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9
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Kluenker M, Mondeshki M, Nawaz Tahir M, Tremel W. Monitoring Thiol-Ligand Exchange on Au Nanoparticle Surfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:1700-1710. [PMID: 29307189 DOI: 10.1021/acs.langmuir.7b04015] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Surface functionalization of nanoparticles (NPs) plays a crucial role in particle solubility and reactivity. It is vital for particle nucleation and growth as well as for catalysis. This raises the quest for functionalization efficiency and new approaches to probe the degree of surface coverage. We present an (in situ) proton nuclear magnetic resonance (1H NMR) study on the ligand exchange of oleylamine by 1-octadecanethiol as a function of the particle size and repeated functionalization on Au NPs. Ligand exchange is an equilibrium reaction associated with Nernst distribution, which often leads to incomplete surface functionalization following "standard" literature protocols. Here, we show that the surface coverage with the ligand depends on the (i) repeated exchange reactions with large ligand excess, (ii) size of NPs, that is, the surface curvature and reactivity, and (iii) molecular size of the ligand. As resonance shifts and extensive line broadening during and after the ligand exchange impede the evaluation of 1H NMR spectra, one- and two-dimensional 19F NMR techniques (correlation spectroscopy and diffusion ordered spectroscopy) with 1H,1H,2H,2H-perfluorodecanthiol as the fluorinated thiol ligand were employed to study the reactions. The enhanced resolution associated with the spectral range of the 19F nucleus allowed carrying out a site-specific study of thiol chemisorption. The widths and shifts of the resonance signals of the different fluorinated carbon moieties were correlated with the distance to the thiol anchor group. In addition, the diffusion analysis revealed that moieties closer to the NP surface are characterized by a broader diffusion coefficient distribution as well as slower diffusion.
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Affiliation(s)
- Martin Kluenker
- Institut für Anorganische Chemie und Analytische Chemie, Johannes Gutenberg-Universität , Duesbergweg 10-14, 55128 Mainz, Germany
| | - Mihail Mondeshki
- Institut für Anorganische Chemie und Analytische Chemie, Johannes Gutenberg-Universität , Duesbergweg 10-14, 55128 Mainz, Germany
| | - Muhammad Nawaz Tahir
- Institut für Anorganische Chemie und Analytische Chemie, Johannes Gutenberg-Universität , Duesbergweg 10-14, 55128 Mainz, Germany
- Chemistry Department, King Fahd University of Petroleum and Minerals , P.O. Box 5048, Dhahran 31261, Saudi Arabia
| | - Wolfgang Tremel
- Institut für Anorganische Chemie und Analytische Chemie, Johannes Gutenberg-Universität , Duesbergweg 10-14, 55128 Mainz, Germany
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10
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Llop Castelbou J, Szeto KC, Barakat W, Merle N, Godard C, Taoufik M, Claver C. A new approach for the preparation of well-defined Rh and Pt nanoparticles stabilized by phosphine-functionalized silica for selective hydrogenation reactions. Chem Commun (Camb) 2017; 53:3261-3264. [PMID: 28261724 DOI: 10.1039/c6cc10338c] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, a new methodology for the synthesis of well-defined metallic nanoparticles supported on silica is described. This methodology is based on the surface control provided by SOMC. The nanoparticles are formed via the organometallic approach and are catalytically active in the hydrogenation of p-xylene, 3-hexyne, 4-phenyl-2 butanone, benzaldehyde, and furfural.
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Affiliation(s)
- J Llop Castelbou
- Departament de Química Física i Inorgànica, Universitat Rovira I Virgili, C/Marcel·li Domingo s/n, Campus Sescelades, 43007, Tarragona, Spain.
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11
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Martínez-Prieto LM, Cano I, Márquez A, Baquero EA, Tricard S, Cusinato L, Del Rosal I, Poteau R, Coppel Y, Philippot K, Chaudret B, Cámpora J, van Leeuwen PWNM. Zwitterionic amidinates as effective ligands for platinum nanoparticle hydrogenation catalysts. Chem Sci 2017; 8:2931-2941. [PMID: 28451359 PMCID: PMC5376718 DOI: 10.1039/c6sc05551f] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 01/31/2017] [Indexed: 11/21/2022] Open
Abstract
Pt NPs covered with zwitterionic amidinates as ligands exhibit an exciting ligand effect in the hydrogenation of carbonyl groups when electron donor/acceptor groups are introduced in the N-substituents.
Ligand control of metal nanoparticles (MNPs) is rapidly gaining importance as ligands can stabilize the MNPs and regulate their catalytic properties. Herein we report the first example of Pt NPs ligated by imidazolium-amidinate ligands that bind strongly through the amidinate anion to the platinum surface atoms. The binding was established by 15N NMR spectroscopy, a precedent for nitrogen ligands on MNPs, and XPS. Both monodentate and bidentate coordination modes were found. DFT showed a high bonding energy of up to –48 kcal mol–1 for bidentate bonding to two adjacent metal atoms, which decreased to –28 ± 4 kcal mol–1 for monodentate bonding in the absence of impediments by other ligands. While the surface is densely covered with ligands, both IR and 13C MAS NMR spectra proved the adsorption of CO on the surface and thus the availability of sites for catalysis. A particle size dependent Knight shift was observed in the 13C MAS NMR spectra for the atoms that coordinate to the surface, but for small particles, ∼1.2 nm, it almost vanished, as theory for MNPs predicts; this had not been experimentally verified before. The Pt NPs were found to be catalysts for the hydrogenation of ketones and a notable ligand effect was observed in the hydrogenation of electron-poor carbonyl groups. The catalytic activity is influenced by remote electron donor/acceptor groups introduced in the aryl-N-substituents of the amidinates; p-anisyl groups on the ligand gave catalysts several times faster the ligand containing p-chlorophenyl groups.
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Affiliation(s)
- L M Martínez-Prieto
- LPCNO , Laboratoire de Physique et Chimie des Nano-Objets , UMR5215 INSA-CNRS-UPS , Institut des Sciences Appliquées , 135, Avenue de Rangueil , F-31077 Toulouse , France . ;
| | - I Cano
- LPCNO , Laboratoire de Physique et Chimie des Nano-Objets , UMR5215 INSA-CNRS-UPS , Institut des Sciences Appliquées , 135, Avenue de Rangueil , F-31077 Toulouse , France . ;
| | - A Márquez
- Instituto de Investigaciones Químicas , CSIC-Universidad de Sevilla , C/Américo Vespucio, 49 , 41092 Sevilla , Spain .
| | - E A Baquero
- LPCNO , Laboratoire de Physique et Chimie des Nano-Objets , UMR5215 INSA-CNRS-UPS , Institut des Sciences Appliquées , 135, Avenue de Rangueil , F-31077 Toulouse , France . ;
| | - S Tricard
- LPCNO , Laboratoire de Physique et Chimie des Nano-Objets , UMR5215 INSA-CNRS-UPS , Institut des Sciences Appliquées , 135, Avenue de Rangueil , F-31077 Toulouse , France . ;
| | - L Cusinato
- LPCNO , Laboratoire de Physique et Chimie des Nano-Objets , UMR5215 INSA-CNRS-UPS , Institut des Sciences Appliquées , 135, Avenue de Rangueil , F-31077 Toulouse , France . ;
| | - I Del Rosal
- LPCNO , Laboratoire de Physique et Chimie des Nano-Objets , UMR5215 INSA-CNRS-UPS , Institut des Sciences Appliquées , 135, Avenue de Rangueil , F-31077 Toulouse , France . ;
| | - R Poteau
- LPCNO , Laboratoire de Physique et Chimie des Nano-Objets , UMR5215 INSA-CNRS-UPS , Institut des Sciences Appliquées , 135, Avenue de Rangueil , F-31077 Toulouse , France . ;
| | - Y Coppel
- CNRS , LCC (Laboratoire de Chimie de Coordination) , Université de Toulouse , UPS , INPT , 205 route de Narbonne, BP 44099 , F-31077-Toulouse Cedex 4 , France
| | - K Philippot
- CNRS , LCC (Laboratoire de Chimie de Coordination) , Université de Toulouse , UPS , INPT , 205 route de Narbonne, BP 44099 , F-31077-Toulouse Cedex 4 , France
| | - B Chaudret
- LPCNO , Laboratoire de Physique et Chimie des Nano-Objets , UMR5215 INSA-CNRS-UPS , Institut des Sciences Appliquées , 135, Avenue de Rangueil , F-31077 Toulouse , France . ;
| | - J Cámpora
- Instituto de Investigaciones Químicas , CSIC-Universidad de Sevilla , C/Américo Vespucio, 49 , 41092 Sevilla , Spain .
| | - P W N M van Leeuwen
- LPCNO , Laboratoire de Physique et Chimie des Nano-Objets , UMR5215 INSA-CNRS-UPS , Institut des Sciences Appliquées , 135, Avenue de Rangueil , F-31077 Toulouse , France . ;
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12
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De Roo J, Baquero EA, Coppel Y, De Keukeleere K, Van Driessche I, Nayral C, Hens Z, Delpech F. Insights into the Ligand Shell, Coordination Mode, and Reactivity of Carboxylic Acid Capped Metal Oxide Nanocrystals. Chempluschem 2016; 81:1216-1223. [DOI: 10.1002/cplu.201600372] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2016] [Revised: 08/26/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Jonathan De Roo
- Department of Inorganic and Physical Chemistry; Ghent University; Krijgslaan 281-S3 9000 Gent Belgium
| | - Edwin A. Baquero
- INSA, UPS, CNRS; Laboratoire de Physique et Chimie des Nano-Objets (LPCNO); Université de Toulouse; 135 avenue de Rangueil 31077 Toulouse cedex 4 France
| | - Yannick Coppel
- Laboratoire de Chimie de Coordination, CNRS, UPR 8241; Université de Toulouse; 31077 Toulouse cedex 4 France
| | - Katrien De Keukeleere
- Department of Inorganic and Physical Chemistry; Ghent University; Krijgslaan 281-S3 9000 Gent Belgium
| | - Isabel Van Driessche
- Department of Inorganic and Physical Chemistry; Ghent University; Krijgslaan 281-S3 9000 Gent Belgium
| | - Céline Nayral
- INSA, UPS, CNRS; Laboratoire de Physique et Chimie des Nano-Objets (LPCNO); Université de Toulouse; 135 avenue de Rangueil 31077 Toulouse cedex 4 France
| | - Zeger Hens
- Department of Inorganic and Physical Chemistry; Ghent University; Krijgslaan 281-S3 9000 Gent Belgium
| | - Fabien Delpech
- INSA, UPS, CNRS; Laboratoire de Physique et Chimie des Nano-Objets (LPCNO); Université de Toulouse; 135 avenue de Rangueil 31077 Toulouse cedex 4 France
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13
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Davidowski SK, Lisowski CE, Yarger JL. Characterizing mixed phosphonic acid ligand capping on CdSe/ZnS quantum dots using ligand exchange and NMR spectroscopy. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2016; 54:234-238. [PMID: 26639792 DOI: 10.1002/mrc.4372] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Revised: 09/10/2015] [Accepted: 09/19/2015] [Indexed: 06/05/2023]
Abstract
The ligand capping of phosphonic acid functionalized CdSe/ZnS core-shell quantum dots (QDs) was investigated with a combination of solution and solid-state (31) P nuclear magnetic resonance (NMR) spectroscopy. Two phosphonic acid ligands were used in the synthesis of the QDs, tetradecylphosphonic acid and ethylphosphonic acid. Both alkyl phosphonic acids showed broad liquid and solid-state (31) P NMR resonances for the bound ligands, indicative of heterogeneous binding to the QD surface. In order to quantify the two ligand populations on the surface, ligand exchange facilitated by phenylphosphonic acid resulted in the displacement of the ethylphosphonic acid and tetradecylphosphonic acid and allowed for quantification of the free ligands using (31) P liquid-state NMR. After washing away the free ligand, two broad resonances were observed in the liquids' (31) P NMR corresponding to the alkyl and aromatic phosphonic acids. The washed samples were analyzed via solid-state (31) P NMR, which confirmed the ligand populations on the surface following the ligand exchange process. Copyright © 2015 John Wiley & Sons, Ltd.
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Affiliation(s)
| | | | - Jeffery L Yarger
- School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287, USA
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14
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Amiens C, Ciuculescu-Pradines D, Philippot K. Controlled metal nanostructures: Fertile ground for coordination chemists. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2015.07.013] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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15
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Lucier BEG, Chan H, Zhang Y, Huang Y. Multiple Modes of Motion: Realizing the Dynamics of CO Adsorbed in M-MOF-74 (M = Mg, Zn) by Using Solid-State NMR Spectroscopy. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201501242] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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16
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García-Peña NG, Caminade AM, Ouali A, Redón R, Turrin CO. Solventless synthesis of Ru(0) composites stabilized with polyphosphorhydrazone (PPH) dendrons and their use in catalysis. RSC Adv 2016. [DOI: 10.1039/c6ra13709a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Ruthenium is in the air: small Ru NPs are obtained by milling RuCl3, NaBH4 and polyphosphorhydrazone dendrons under air. The whole dendron structure is involved in the stabilization process. These NPs catalyze the selective hydrogenation of styrene.
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Affiliation(s)
- Nidia G. García-Peña
- Departamento de Tecnociencias
- Centro de Ciencias Aplicadas y Desarrollo Tecnológico
- Universidad Nacional Autónoma de México
- México
- Mexico
| | - Anne-Marie Caminade
- CNRS
- LCC (Laboratoire de Chimie de Coordination)
- F-31077 Toulouse cedex 4
- France
- Université de Toulouse
| | - Armelle Ouali
- CNRS
- LCC (Laboratoire de Chimie de Coordination)
- F-31077 Toulouse cedex 4
- France
- Université de Toulouse
| | - Rocío Redón
- Departamento de Tecnociencias
- Centro de Ciencias Aplicadas y Desarrollo Tecnológico
- Universidad Nacional Autónoma de México
- México
- Mexico
| | - Cédric-Olivier Turrin
- CNRS
- LCC (Laboratoire de Chimie de Coordination)
- F-31077 Toulouse cedex 4
- France
- Université de Toulouse
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17
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Chahdoura F, Favier I, Pradel C, Mallet-Ladeira S, Gómez M. Palladium nanoparticles stabilised by PTA derivatives in glycerol: Synthesis and catalysis in a green wet phase. CATAL COMMUN 2015. [DOI: 10.1016/j.catcom.2014.10.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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18
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Castelbou JL, Blondeau P, Claver C, Godard C. Surface characterisation of phosphine and phosphite stabilised Rh nanoparticles: a model study. RSC Adv 2015. [DOI: 10.1039/c5ra21835g] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The surface characterisation of Rh nanoparticles stabilized by triphenylphosphine and triphenylphosphite shows differences that were correlated with distinct selectivities in catalytic styrene hydrogenation.
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Affiliation(s)
| | - Pascal Blondeau
- Departament de Química Analitica i Orgànica
- Universitat Rovira I Virgili
- Tarragona
- Spain
| | - Carmen Claver
- Departament de Química Física I Inorgànica
- Universitat Rovira I Virgili
- Tarragona
- Spain
| | - Cyril Godard
- Departament de Química Física I Inorgànica
- Universitat Rovira I Virgili
- Tarragona
- Spain
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19
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Bresó-Femenia E, Godard C, Claver C, Chaudret B, Castillón S. Selective catalytic deuteration of phosphorus ligands using ruthenium nanoparticles: a new approach to gain information on ligand coordination. Chem Commun (Camb) 2015; 51:16342-5. [DOI: 10.1039/c5cc06984j] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Selective deuteration of phenyl rings in phenyl-alkyl phosphines, including diphosphines, was achieved using Ru/PVP nanoparticles and D2, which enables the comprehension of how different phosphorus ligands coordinate to the nanoparticle surface.
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Affiliation(s)
- Emma Bresó-Femenia
- Departament de Química Analítica i Orgànica
- Universitat Rovira I Virgili
- 43007 Tarragona
- Spain
- Laboratoire de Physique et Chimie des Nano Objets
| | - Cyril Godard
- Departament de Química Física i Inorgànica
- Universitat Rovira i Virgili
- 43007 Tarragona
- Spain
| | - Carmen Claver
- Departament de Química Física i Inorgànica
- Universitat Rovira i Virgili
- 43007 Tarragona
- Spain
- Centre de Tecnologia Química de Catalunya (CTQC)
| | - Bruno Chaudret
- Laboratoire de Physique et Chimie des Nano Objets
- LPCNO
- UMR 5215 INSA-UPS-CNRS
- Université de Toulouse
- Institut National des Sciences Appliquées
| | - Sergio Castillón
- Departament de Química Analítica i Orgànica
- Universitat Rovira I Virgili
- 43007 Tarragona
- Spain
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20
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Bonnefille E, Novio F, Gutmann T, Poteau R, Lecante P, Jumas JC, Philippot K, Chaudret B. Tin-decorated ruthenium nanoparticles: a way to tune selectivity in hydrogenation reaction. NANOSCALE 2014; 6:9806-9816. [PMID: 25027477 DOI: 10.1039/c4nr00791c] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Two series of ruthenium nanoparticles stabilized either by a polymer (polyvinylpyrrolidone; Ru/PVP) or a ligand (bisdiphenylphosphinobutane; Ru/dppb) were reacted with tributyltin hydride [(n-C4H9)3SnH] leading to tin-decorated ruthenium nanoparticles, Ru/PVP/Sn and Ru/dppb/Sn. The Sn/Ru molar ratio was varied in order to study the influence of the surface tin content on the properties of these new nanoparticles, by comparison with Ru/PVP and Ru/dppb. Besides HRTEM and WAXS analyses, spectroscopic techniques (IR, NMR and Mössbauer) combined with theoretical calculations and a simple catalytic test (styrene hydrogenation) allowed us to evidence the formation of μ(3)-bridging "SnR" groups on the ruthenium surface as well as to rationalize their influence on surface chemistry and catalytic activity.
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Affiliation(s)
- Eric Bonnefille
- Laboratoire de Chimie de Coordination, CNRS, LCC, 205 Route de Narbonne, F-31077 Toulouse, France.
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21
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Philippot K, Lignier P, Chaudret B. Organometallic Ruthenium Nanoparticles and Catalysis. TOP ORGANOMETAL CHEM 2014. [DOI: 10.1007/3418_2014_83] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
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