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Magnetic silica colloids for catalysis |
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| Authors: | E Maria Claesson Nilesh C Mehendale Robertus JM Klein Gebbink Gerard van Koten Albert P Philipse |
| Institution: | 1. Van’t Hoff Laboratory for Physical and Colloid Chemistry, Utrecht University, The Netherlands;2. Organic Chemistry and Catalysis, Utrecht University, The Netherlands |
| Abstract: | Monodisperse magnetizable colloidal silica particles in a stable dispersion have been functionalized with a homogeneous catalyst: a PCP–pincer Pd-complex. In a proof-of-principle experiment we demonstrate the catalytic activity of the colloids in a C–C bond formation reaction. Advantages of the magnetic silica carriers are the large surface-to-volume ratio and the easy recovery by magnetic separation. After magnetic separation, the catalyst-loaded particles are readily redispersed for further use. |
| Keywords: | Magnetic silica particles Magnetic separation Pincer complex Supported catalyst Aldol condensation reaction Maghemite Silica colloids Core-shell particles |
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