Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1324645 | Journal of Organometallic Chemistry | 2009 | 10 Pages |
A series of heterogeneous iridium containing catalysts was synthesized by the incipient wetness method. The support material was silica gel. The heterogeneous catalysts were able to dehydrogenate isopentane to isopentene with very high activities and selectivities. The use of external additives (e.g. PPh3) in case of the heterogenized iridium complex IrH(CO)(PPh3)3 increased the conversion of isopentane up to 30%. Such a conversion rate has been predicted by model calculations of the thermodynamic equilibrium of the dehydrogenation reaction of isopentane.
Graphical abstractVarious complexes of iridium, supported on silica, in combination with triphenylphosphine as additive, are good catalysts for the activation of alkanes. “Sacrificing olefins” are not necessary.Figure optionsDownload full-size imageDownload as PowerPoint slide