Catalytic Supramolecular Gels

Supramolecular gels – a panorama of low-molecular-weight gelators from ancient origins to next-generation technologies

“…Excellent reviews of supramolecular gels in catalysis have been produced by a number of groups. 334 Furthermore, by performing reactions in gel media, the confined environments can be used to achieve specific outcomes. Alternatively, it is possible to envisage a gel as a delivery vehicle for reagents or catalysts, releasing them in a controlled manner.…”

Mechanically Robust Hybrid Gel Beads Loaded with “Naked” Palladium Nanoparticles as Efficient, Reusable, and Sustainable Catalysts for the Suzuki–Miyaura Reaction

“…In contrast to polymer gels, supramolecular gels based on low-molecular-weight gelators (LMWGs) can be easily and reversibly assembled and readily tuned to incorporate active functional groups. They have become of much interest for applications in catalysis as a result of their high activities, ease of recycling, and their green and sustainable credentials. − Early reports incorporated Pd-binding ligands into such materials and then used the resulting bulk gels to catalyze cross-coupling reactions. , Going beyond simple Pd ligation, Maity and Maitra used an external reductant to create PdNPs in gels that could catalyze Suzuki–Miyaura reactions . Inspired by this work, we developed an active LMWG, DBS-CONHNH 2 , not only capable of removing precious-metal cations from waste water down to ppb levels but also able to spontaneously reduce them in situ to their elemental form, storing them as NPs inside its network .…”

“…They have become of much interest for applications in catalysis as a result of their high activities, ease of recycling, and their green and sustainable credentials. 42 − 45 Early reports incorporated Pd-binding ligands into such materials and then used the resulting bulk gels to catalyze cross-coupling reactions. 46 , 47 Going beyond simple Pd ligation, Maity and Maitra used an external reductant to create PdNPs in gels that could catalyze Suzuki–Miyaura reactions.…”