0000000000307258

AUTHOR

Clément Sanchez

showing 2 related works from this author

Nanophase Segregation of Self-Assembled Monolayers on Gold Nanoparticles

2017

International audience; Nanophase segregation of a bi-component thiol self-assembled monolayer is predicted using atomistic molecular dynamics simulations and experimentally confirmed. The simulations suggest the formation of domains rich in acid-terminated chains, on one hand, and of domains rich in amide-functionalized ethylene glycol oligomers, on the other hand. In particular, within the amide-ethylene glycol oligomers region, a key role is played by the formation of inter-chain hydrogen bonds. The predicted phase segregation is experimentally confirmed by the synthesis of 35 and 15 nm gold nanoparticles functionalized with several binary mixtures of ligands. An extensive study by trans…

Materials scienceJanus particlesNucleationGeneral Physics and AstronomyNanoparticleJanus particlesNanotechnology02 engineering and technologyPhysics and Astronomy(all)010402 general chemistry01 natural scienceschemistry.chemical_compoundMaterials Science(all)MonolayerGeneral Materials Science[SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronicsdensity functional theoryEngineering(all)General EngineeringSelf-assembled monolayer[CHIM.MATE]Chemical Sciences/Material chemistry021001 nanoscience & nanotechnologymolecular dynamics0104 chemical sciencesElectron tomographyChemical engineeringchemistryself-assembled monolayerColloidal goldgold nanoparticles0210 nano-technologyEthylene glycol
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Preparation of multi-nanocrystalline transition metal oxide (TiO2–NiTiO3) mesoporous thin films

2005

Ordered mesoporous TiO2–NiTiO3 thin films, with nickel content x < 0.5, were prepared by dip-coating an acidic solution of hydrolysed transition metal chlorides in controlled humidity, followed by a very careful annealing treatment. These latter treatments were studied by in situ SAXS-WAXS experiments involving synchrotron radiation and TEM analysis. They revealed that the walls can be composed of amorphous, single crystalline or multi crystalline nanoparticles depending on x and the conditions applied during the thermal treatment.

ChemistryInorganic chemistryOxideNanoparticleGeneral ChemistryThermal treatmentCatalysisNanocrystalline materialAmorphous solidchemistry.chemical_compoundTransition metalMaterials ChemistryThin filmMesoporous materialNew J. Chem.
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