| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 61527 | Journal of Catalysis | 2012 | 8 Pages |
The platinum-encapsulated zeolitically microcapsular catalyst, associated with the immobilized Candida antartica lipase B (Novozyme®435), is successfully employed in the dynamic kinetic resolution of phenylethylamine. A conversion of 80% and a selectivity of 95% are achieved, and negligible loss of activity is detected even after reaction of 5 runs. It is found that the existence of the silicalite-1 shell not only effectively prevents the deactivation of both enzyme and Pt by isolating them in different regions of reaction system, but also significantly reduces the formation of by-products on the Pt nanoparticles within the protected space of zeolitic microcapsule. Such features of zeolitic shell should further promote the designing of various catalysts for multistep reaction network.
Graphical abstractPlatinum-encapsulated zeolitic microcapsules are successfully employed in dynamic kinetic resolution of phenylethylamine with high activity and selectivity due to promising protective effect of the zeolitically microcapsular structure.Figure optionsDownload full-size imageDownload high-quality image (109 K)Download as PowerPoint slideHighlights► Platinum-encapsulated ZMCs are successfully employed in DKR of phenylethylamine. ► ZMC structure of catalyst promises its activity, selectivity and reusability. ► Isolation effect of zeolitic shell prohibits the deactivation of Pt and enzyme. ► The protected space within ZMC limits the formation of by-product.
