Ruthenium and rhodium nanoparticles as catalytic precursors in supercritical carbon dioxide

被引：27

作者：

Escarcega-Bobadilla, Martha V. ^{[1
,2
]}

Tortosa, Clara ^{[2
]}

Teuma, Emmanuelle ^{[1
]}

Pradel, Christian ^{[1
]}

Orejon, Aranzazu ^{[2
]}

Gomez, Montserrat ^{[1
]}

Masdeu-Bulto, Anna M. ^{[2
]}

机构：

[1] Univ Toulouse 3, CNRS, Lab Heterochim Fondamentale & Appl, UMR 5069, F-31120 Toulouse 9, France

[2] Univ Rovira & Virgili, Dept Quim Fis & Inorgan, Tarragona 43007, Spain

来源：

CATALYSIS TODAY | 2009年 / 148卷 / 3-4期

关键词：

Ruthenium; Rhodium; Nanoparticles; Supercritical carbon dioxide; Fluorinated phosphines; Catalytic hydrogenation; TRANSITION-METAL NANOCLUSTERS; PALLADIUM NANOPARTICLES; HETEROGENEOUS CATALYSIS; HOMOGENEOUS CATALYSIS; STERIC STABILIZATION; ARENE HYDROGENATION; SURFACE REACTIVITY; CO2; FLUIDS; MICROEMULSION;

D O I：

10.1016/j.cattod.2009.07.112

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Ruthenium and rhodium nanoparticles (MNP) were prepared in the presence of phosphine ligands containing fluorinated groups, starting from well-defined organometallic compounds. The syntheses of these new materials evidenced the crucial tuning between metal precursor and ligand. These nanocatalysts were used in hydrogenation reactions of arene derivatives in organic solvent (THF) and supercritical carbon dioxide (scCO(2)). The catalytic behaviour observed (activity and selectivity) showed that both Ru and Rh systems are less active in scCO(2) than in THF, preventing the hydrogenation of the aromatic group when electron-donor groups (like ether moieties) are present on the substrate. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：398 / 404

页数：7

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