期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 59, 期 2, 页码 853-859出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201911404
关键词
catalysis; gel; self-assembly; supramolecular systems
资金
- EPSRC [EP/P03361X/1]
- Experientia Foundation
- University of York (Pump Priming Funding)
- EPSRC [EP/P03361X/1] Funding Source: UKRI
With the goal of imposing shape and structure on supramolecular gels, we combine a low-molecular-weight gelator (LMWG) with the polymer gelator (PG) calcium alginate in a hybrid hydrogel. By imposing thermal and temporal control of the orthogonal gelation methods, the system either forms an extended interpenetrating network or core-shell-structured gel beads-a rare example of a supramolecular gel formulated inside discrete gel spheres. The self-assembled LMWG retains its unique properties within the beads, such as remediating Pd-II and reducing it in situ to yield catalytically active Pd-0 nanoparticles. A single PdNP-loaded gel bead can catalyse the Suzuki-Miyaura reaction, constituting a simple and easy-to-use reaction-dosing form. These uniquely shaped and structured LMWG-filled gel beads are a versatile platform technology with great potential in a range of applications.
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