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A Brush‐Gel/Metal‐Nanoparticle Hybrid Film as an Efficient Supported Catalyst in Glass Microreactors |
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| Authors: | Dr. Francesca Costantini Dr. Edmondo M. Benetti Dr. Roald M. Tiggelaar Prof. Dr. Han J. G. E. Gardeniers Prof. Dr. David N. Reinhoudt Prof. Dr. Jurriaan Huskens Prof. Dr. G. Julius Vancso Dr. Willem Verboom |
| Affiliation: | 1. Molecular Nanofabrication (MnF), University of Twente, MESA+ Institute for Nanotechnology, P.O. Box 217, 7500 AE Enschede (The Netherlands), Fax: (+31)?53‐4894645;2. Materials Science and Technology of Polymers (MTP), University of Twente, MESA+ Institute for Nanotechnology, P.O. Box 217, 7500 AE Enschede (The Netherlands), Fax: (+31)?53‐4893823;3. Mesoscale Chemical Systems (MCS), University of Twente, MESA+ Institute for Nanotechnology, P.O. Box 217, 7500 AE Enschede (The Netherlands) |
| Abstract: | A polymer‐brush‐based material was applied for the formation and in situ immobilization of silver and palladium nanoparticles, as a catalytic coating on the inner wall of glass microreactors. The brush film was grown directly on the microchannel interior by means of atom‐transfer radical polymerization (ATRP), which allows control over the polymer film thickness and therefore permits the tuning of the number of nanoparticles formed on the channel walls. The wide applicability of the catalytic devices is demonstrated for the reduction of 4‐nitrophenol and for the Heck reaction. |
| Keywords: | Heck reaction heterogeneous catalysis microreactors nanoparticles polymerization reduction |