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Cover Picture: Synthesis of Platinum–Ruthenium Nanoparticles under Supercritical CO 2 and their Confinement in Carbon Nanotubes: Hydrogenation Applications (ChemCatChem 1/2012)
Author(s) -
Castillejos Eva,
Jahjah Mohamad,
Favier Isabelle,
Orejón Arantxa,
Pradel Christian,
Teuma Emmanuelle,
MasdeuBultó Anna M.,
Serp Philippe,
Gómez Montserrat
Publication year - 2012
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201190054
Subject(s) - carbon nanotube , bimetallic strip , ruthenium , catalysis , cinnamyl alcohol , supercritical fluid , materials science , alkyl , nanoparticle , amide , platinum , selectivity , surface modification , supercritical carbon dioxide , inorganic chemistry , chemical engineering , organic chemistry , chemistry , nanotechnology , engineering
Selective Oxidation In their contribution on page 118 ff. , Gómez, Serp, and co‐workers describe efficient catalysts for the selective hydrogenation of cinnamaldehyde to cinnamyl alcohol, the chemical responsible for the hyacinth's scent. Bimetallic platinum/ruthenium nanoparticles stabilized by simple ligands were prepared in both THF and supercritical carbon dioxide, giving more dispersed particles than those prepared in the organic solvent. Their confinement in multi‐walled carbon nanotubes could be achieved thanks to the appropriate functionalization of the support by amide groups containing a long alkyl chain. The higher selectivity observed for the confined catalysts in relation to the non‐confined ones, can be attributed to the higher concentration of reactants inside the multi‐walled carbon nanotubes.