Synthesis of Platinum-Ruthenium Nanoparticles under Supercritical CO2 and their Confinement in Carbon Nanotubes: Hydrogenation Applications

被引：49

作者：

Castillejos, Eva ^{[1
]}

Jahjah, Mohamad ^{[2
,3
]}

Favier, Isabelle ^{[2
,3
]}

Orejon, Arantxa ^{[4
]}

Pradel, Christian ^{[2
,3
]}

Teuma, Emmanuelle ^{[2
,3
]}

Masdeu-Bulto, Anna M. ^{[4
]}

Serp, Philippe ^{[1
]}

Gomez, Montserrat ^{[2
,3
]}

机构：

[1] Univ Toulouse, UPS, INP, Composante ENSIACET,LLC,UPR 8241, F-31030 Toulouse 4, France

[2] Univ Toulouse, UPS, LHFA, F-31062 Toulouse 9, France

[3] CNRS, LHFA, UMR 5069, F-31062 Toulouse 9, France

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

来源：

CHEMCATCHEM | 2012年 / 4卷 / 01期

关键词：

nanoparticles; hydrogenation; nanotubes; platinum; ruthenium; supercritical carbon dioxide; ENANTIOSELECTIVE HYDROGENATION; METALLIC NANOPARTICLES; CATALYSIS; FLUIDS; COLLOIDS; NANOCLUSTERS; PARTICLES; STABILIZATION; PALLADIUM; SUPPORTS;

D O I：

10.1002/cctc.201100244

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Bimetallic platinumruthenium nanoparticles stabilised by pyridine- and monophosphine-based ligands were prepared either in supercritical CO2 or in THF. TEM analyses evidenced a tendency of the nanoparticles prepared in supercritical CO2 to agglomerate. Both types of bimetallic nanoparticles were further confined into functionalised multiwalled carbon nanotubes. Upon confinement, PtRu nanoparticles stabilised by phosphine ligands appeared more agglomerated than those stabilised by the pyridine ligand. These materials were applied to cinnamaldehyde hydrogenation. Confined PtRu nanoparticles showed higher catalytic activity and selectivity than unsupported nanoparticles.

引用

页码：118 / 122

页数：5

共 44 条

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