A5012214356- Nanomaterials for catalytic reactions
- Dendrimers and Hyperbranched Polymers
- Catalytic Processes in Materials Science
- Asymmetric Hydrogenation and Catalysis
- Mesoporous Materials and Catalysis
- Gold and Silver Nanoparticles Synthesis and Applications
- Ferroelectric and Piezoelectric Materials
- Electronic and Structural Properties of Oxides
- Molecular Junctions and Nanostructures
- Metal complexes synthesis and properties
- Chemical Synthesis and Analysis
- Ferrocene Chemistry and Applications
- Photorefractive and Nonlinear Optics
- Innovative Microfluidic and Catalytic Techniques Innovation
- Environmental remediation with nanomaterials
- Catalytic Cross-Coupling Reactions
- Supramolecular Chemistry and Complexes
- Metal-Organic Frameworks: Synthesis and Applications
- Advanced biosensing and bioanalysis techniques
- Hydrogen Storage and Materials
- Catalytic Alkyne Reactions
- Lanthanide and Transition Metal Complexes
- Adsorption, diffusion, and thermodynamic properties of materials
- Nanocluster Synthesis and Applications
- Multicomponent Synthesis of Heterocycles
Université de Toulouse
2009-2017
Laboratoire de Chimie de Coordination
2009-2017
Centre National de la Recherche Scientifique
2006-2017
Institut National Polytechnique de Toulouse
2009-2017
Université Toulouse III - Paul Sabatier
2009-2017
Institut de Ciència de Materials de Barcelona
2015-2016
Consejo Superior de Investigaciones Científicas
2015-2016
Life Medical Control (France)
2009
Universitat Autònoma de Barcelona
2004-2009
Università degli Studi della Tuscia
2008
Iron nanoparticles prepared by reducing FeCl3 with three equivalents of EtMgCl in THF are effective catalysts for the hydrogenation alkenes and alkynes under moderate conditions.
The preparation of Ru(0) nanoclusters stabilized by 3-aminopropyltriethoxysilane and their characterization a combination complementary techniques are described. These new provide high activity unprecedented reusability as heterogeneous catalyst in the dehydrogenation dimethylamine-borane.
Generations 1 to 3 of dendrimers ended by water-soluble phosphines are synthesized and their ruthenium complexes used as catalysts in aqueous media; a slightly positive dendritic effect on the regioselectivity is observed for hydration alkynes large biphasic (water/heptane) catalysed isomerisation allylic alcohols ketones where products easily isolated catalyst can be reused several times, even first generation.
The immobilization of phosphine-free perfluoro-tagged palladium nanoparticles Pd-1 on fluorous silica gel (FSG) and their utilization in the Heck reaction have been investigated. High yields vinylic substitution products obtained. Recycling studies shown that solid-supported catalyst can be readily recovered reused several times without significant loss activity. Reactions recovery system carried out presence air, any particular precaution.
Carbon-supported Pd nanoparticles have been proved to be efficient dual hydrogenation–oxidation nanocatalysts in both the selective aqueous oxidation of benzyl alcohol and hydrogenation furfural water under microwave irradiation. Nanocatalysts based on trioctylphosphine triphenylphosphine-stabilized-Pd NPs oxidized carbon support were found most active. The presence oxygen groups surface support, particularly those acidic character, improve immobilization as well affinity, consequently...
Carbon-carbon double bonds have been selectively hydrogenated at room temperature in the presence of benzyloxy groups using an atmospheric pressure hydrogen, toluene or [bmim]PF6 as solvent and palladium nanoparticles stabilized with tetrabutylammonium bromide. The system [bmim]PF6/palladium can be recycled without noticeable decrease activity.
The crystallization process and physical properties of different functional oxide thin films (Ce0.9Zr0.1O2-y, LaNiO3, Ba0.8Sr0.2TiO3, La0.7Sr0.3MnO3) on single crystal substrates (Y2O3:ZrO2, LaAlO3, SrTiO3) are studied by pulsed laser annealing (PLA). A Nd:YAG source (λ = 266 nm, 10 Hz τ ∼ 3 ns) is employed to crystallize chemical solution deposited (CSD) amorphous/nanocrystalline under atmospheric conditions. We provide new insight the influence photochemical photothermal interactions...
Highly crystalline epitaxial Ba0.8Sr0.2TiO3 (BST) thin-films are grown on (001)-oriented LaNiO3-buffered LaAlO3 substrates by pulsed laser irradiation of solution derived barium-zirconium-titanium precursor layers using a UV Nd:YAG source at atmospheric conditions. The structural analyses the obtained films, studied X-ray diffractometry and transmission electron microscopy, demonstrate that processing allows growth tens nm-thick BST films with structure similar to through conventional...
Palladium nanoparticles formed by the reduction of palladium(II) chloride with methanol or 2-propanol are stabilized entrapment in solid heavily fluorinated compounds, as suggested powder X-ray diffraction. Some stabilizers fluorohydrocarbons without a functional group. Calculations suggest that minor amounts Pd(II) on surface might be origin attractive interactions negative periphery perfluorinated chains (CnF2n+1). The role sodium acetate precipitation is underlined.
The synthesis of palladium, platinum and ruthenium nanoparticles stabilized by azamacrocycles bearing polyoxyethylenated chains has been achieved decomposition the corresponding organometallic precursors (Pd(dba)(2), Pt(2)(dba)(3) Ru(COD)(COT)) under dihydrogen atmosphere, whereas gold rhodium have obtained in presence these ligands reduction HAuCl(4) RhCl(3), respectively. metal were characterized several techniques including IR, NMR, UV-vis, HRTEM, ED, elemental analysis. Pd used as...
We describe the stabilization studies of new palladium nanoparticles (Pd NPs) with a family hybrid ligands. For this purpose, two N,O-hybrid pyrazole derived ligands, as well other previously reported, have been used NP stabilizing agents following an organometallic approach. A comparison corresponding complexes has carried out. also studied superstructures formed by agglomeration NPs. To evaluate scope system, different parameters such structure ligand, ligand/metal ratio, nature solvent,...
Ruthenium nanoparticles have been prepared by hydrogenation of the complex Ru(COD)(COT) (COD = 1,5-cyclooctadiene, COT 1,3,5-cyclooctatriene) in presence i) heavily fluorinated solid compounds as stabilizers (para-bis(perfluorooctyl)benzene, 2,4,6-tris(perfluorooctyl)aniline, and non-functionalized 11H,11H,12H,12H,13H,13H,14H,14H,15H,15H,16H, 16H-perfluorohexacosane (C10F21-(CH2)6-C10F21)); ii) liquid 1H,1H,2H,2H-perfluorodecylamine. The particles characterized IR spectroscopy, elemental...
Abstract [Ru(0)]@SiO 2 and [RuO ]@SiO hybrid nanomaterials are produced following a facile method consisting of the synthesis size‐controlled ruthenium nanoparticles as elemental bricks. This route takes advantage organometallic approach use bifunctional ligand for from [Ru(COD)(COT)](COD = 1,3‐cyclooctadiene, COT 1,3,5‐cyclooctatriene) metal precursor (PhCH ) N(CH 11 O(CH 3 Si(OEt) (benzenemethanamine) stabilizer. Hydrolysis polycondensation steps via sol–gel lead to formation silica...
The synthesis of platinum nanoparticles organized inside rod or wire shaped superstructures is described. Such organization results from the combination an organometallic route leading to size-controlled with use a fluorinated aniline able self-assemble as stabilizing agent. Several techniques were employed characterize nanomaterials obtained including TEM, HRTEM, WAXS, SEM-FEG and SAXS which confirmed nanoparticle organization.
The synthesis of platinum(0) nanoparticles by decomposition Pt2(dba)3 under a dihydrogen or CO atmosphere and in the presence heavily fluorinated stabilizers is described. Several techniques were used for characterization obtained nanomaterials (TEM, HREM, WAXS SEM-FEG) that organize into spherical elongated superstructures made small individual (ca. 2.5 nm).
A facile synthesis of composite ruthenium-containing silica nanomaterials from amine stabilized-ruthenium nanoparticles as elemental bricks is described. This route takes advantage an organometallic approach and the use bifunctional H2N–(CH2)x–Si(OEt)3 amines stabilizing ligands (x = 3, 11) for ruthenium nanoparticles, [Ru(COD)(COT)] (COD 1,3-cyclooctadiene, COT 1,3,5-cyclooctatriene) metal precursor. Classical hydrolysis polycondensation steps sol–gel further lead to formation matrix around...
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