Near- and Supercritical Alcohols as Solvents and Surface Modifiers for the Continuous Synthesis of Cerium Oxide Nanoparticles.
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | SLOSTOWSKI, Cédric | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | MARRE, Samuel | |
| hal.structure.identifier | Institut des Sciences Moléculaires [ISM] | |
| dc.contributor.author | BABOT, Odile | |
| hal.structure.identifier | Institut des Sciences Moléculaires [ISM] | |
| dc.contributor.author | TOUPANCE, Thierry | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | AYMONIER, Cyril | |
| dc.date.issued | 2012 | |
| dc.identifier.issn | 0743-7463 | |
| dc.description.abstractEn | Supercritical fluids offer fast and facile routes toward well-crystallized tailor-made cerium oxide nanoparticles. However, the use of surfactants to control morphology and surface properties remains essential. Therefore, although water, near-critical (nc) or supercritical (sc), is a solvent of choice, the poor water solubility of some surfactants could require other solvent systems such as alcohols, which could themselves behave as surface modifiers. In here, the influence of seven different alcohols, MeOH, EtOH, PrOH, iPrOH, ButOH, PentOH, and HexOH, in alcothermal conditions (300 °C, 24.5 MPa) over CeO(2) nanocrystals (NCs) size, morphology, and surface properties was investigated. The crystallite size of the CeO(2) nanocrystals can be tuned in the range 3-7 nm depending on the considered alcohol, and their surface has been modified by these solvents without the use of surfactants. Mechanisms are proposed for the interaction of primary and secondary alcohols with CeO(2) surface and its functionalization during the synthesis based on FTIR and TGA-MS studies. This study allows apprehending the role of alcohols during the synthesis and may lead to an informed choice of solvent as a function of the required size and surface properties of CeO(2) NCs. It also opens new route to CeO(2) functionalization using supercritical alcohol derivatives. | |
| dc.language.iso | en | |
| dc.publisher | American Chemical Society | |
| dc.subject.en | Cerium oxides | |
| dc.subject.en | Chemical synthesis | |
| dc.subject.en | Surfaces | |
| dc.subject.en | Supercritical fluids | |
| dc.subject.en | Solvent | |
| dc.title.en | Near- and Supercritical Alcohols as Solvents and Surface Modifiers for the Continuous Synthesis of Cerium Oxide Nanoparticles. | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1021/la303265t | |
| dc.subject.hal | Chimie/Matériaux | |
| bordeaux.journal | Langmuir | |
| bordeaux.page | 16656-16663 | |
| bordeaux.volume | 28 | |
| bordeaux.issue | 48 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00760911 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00760911v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Langmuir&rft.date=2012&rft.volume=28&rft.issue=48&rft.spage=16656-16663&rft.epage=16656-16663&rft.eissn=0743-7463&rft.issn=0743-7463&rft.au=SLOSTOWSKI,%20C%C3%A9dric&MARRE,%20Samuel&BABOT,%20Odile&TOUPANCE,%20Thierry&AYMONIER,%20Cyril&rft.genre=article |
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