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The Co‐Entrapment of a Homogeneous Catalyst and an Ionic Liquid by a Sol–gel Method: Recyclable Ionogel Hydrogenation Catalysts
Author(s) -
Craythorne Steven J.,
Anderson Kris,
Lorenzini Fabio,
McCausland Christina,
Smith Emily F.,
Licence Peter,
Marr Andrew C.,
Marr Patricia C.
Publication year - 2009
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.200801809
Subject(s) - ionic liquid , catalysis , homogeneous , entrapment , chemical engineering , materials science , chemistry , organic chemistry , thermodynamics , engineering , physics , medicine , surgery
Molecular hydrogenation catalysts have been co‐entrapped with the ionic liquid [Bmim]NTf 2 inside a silica matrix by a sol–gel method. These catalytic ionogels have been compared to simple catalyst‐doped glasses, the parent homogeneous catalysts, commercial heterogeneous catalysts, and Rh‐doped mesoporous silica. The most active ionogel has been characterised by transmission electron microscopy, X‐ray photoelectron spectroscopy, and solid state NMR before and after catalysis. The ionogel catalysts were found to be remarkably active, recyclable and resistant to chemical change.