PASCU, Oana; CACCIUTTOLO, Bastien; MARRE, Samuel; PUCHEAULT, Mathieu; AYMONIER, Cyril

doi:10.1016/j.supflu.2014.11.013

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PASCU, Oana
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

CACCIUTTOLO, Bastien
Institut des Sciences Moléculaires [ISM]

MARRE, Samuel
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

Langue

Article de revue

Ce document a été publié dans

Journal of Supercritical Fluids. 2015, vol. 105, p. 84–91

Elsevier

Résumé en anglais

Designing and developing materials with specific properties are nowadays important tasks. These could be achieved by choosing the adequate conditions, from a myriad of possibilities, being aware that slight changes in the preparation method could have major impact on the final material. With the work presented here, we are showing that kinetically controlled surface nano-structuring (NPs formation and deposition over solid supports) in scCO2 is a versatile way for preparing active materials. Size, composition, morphology and organization/architecture of supported metal NPs can be controlled by playing with the type of metal, metal precursor, reaction media composition (stronger or weaker reducing media) and different supports employed. Moreover, direct correlation between physical (size, morphology, organization) and chemical properties (composition, surface chemistry) are demonstrated with the systems catalytic behaviour, yield and selectivity, exemplified with N-alkylation reaction of amines with alcohols.< Réduire

Mots clés en anglais

scCO2

Supported metal nanoparticles

Kinetic control

Oxide support

Nanoparticles synthesis

DOI

http://dx.doi.org/10.1016/j.supflu.2014.11.013

Project ANR

Catalyseurs Nanostructurés en Systèmes Non Conventionnels - ANR-12-CDII-0010

Origine

Importé de hal

Unités de recherche

Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB) - UMR 5026