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Your search keyword '"Laurence Ramos"' showing total 3 results
Start Over Author "Laurence Ramos" Journal chemistry of materials
3 results on '"Laurence Ramos"'

1. Synthesis of Porous Platinum Nanoballs in Soft Templates

Author

Eric Prouzet, Geetarani Surendran, and Fabrice Audonnet, Patricia Beaunier, Laurence Ramos, Hynd Remita, Brigitte Pansu, Groupe de Dynamique des Phases Condensées (GDPC), Centre National de la Recherche Scientifique (CNRS)-Université Montpellier 2 - Sciences et Techniques (UM2), Institut Européen des membranes (IEM), Centre National de la Recherche Scientifique (CNRS)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM), Laboratoire de Chimie Physique D'Orsay (LCPO), and Université Paris-Sud - Paris 11 (UP11)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)

Subjects
chemistry.chemical_classification, Nanostructure, Materials science, Hexagonal crystal system, General Chemical Engineering, Doping, Nanowire, Salt (chemistry), chemistry.chemical_element, Nanotechnology, 02 engineering and technology, General Chemistry, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, Template, chemistry, Chemical engineering, Materials Chemistry, [PHYS.PHYS.PHYS-CHEM-PH]Physics [physics]/Physics [physics]/Chemical Physics [physics.chem-ph], 0210 nano-technology, Porosity, Platinum, ComputingMilieux_MISCELLANEOUS
Abstract

Slow reduction of platinum salt in soft template made by direct hexagonal mesophases leads to Pt nanoballs with hexagonal cells formed by connected nanowires. The mesophases can be doped by high concentrations of platinum (up to 0.2 M) which leads to relatively large quantities of Pt nanostructures.

Published
2007
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2. Synthesis of Ultrathin Hexagonal Palladium Nanosheets.

Author

Prem F. Siril, Laurence Ramos, Patricia Beaunier, Pierre Archirel, Arnaud Etcheberry, and Hynd Remita

Subjects
*METAL complexes, *PALLADIUM compounds, *NANOSTRUCTURED materials, *TOLUENE, *WATER, *SURFACE active agents, *CHEMICAL reduction, *NUCLEATION
Abstract

Ultrathin palladium hexagonal nanosheets were synthesized in emulsions constituted of droplets of toluene containing Pd complexes in water and stabilized by CTAB as surfactant and in quaternary mesophases formed by water, toluene containing Pd complexes, CTAB, and a cosurfactant. We have identified slow reduction and nucleation provided by CO and adsorption at the CTAB interface as key factors for the formation of Pd nanosheets. These nanosheets exhibit a broad absorption band from the visible to the near-infrared region. [ABSTRACT FROM AUTHOR]

Published
2009
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