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Highly stable, water-dispersible metal-nanoparticle-decorated polymer nanocapsules and their catalytic applications
Gyeongwon Yun1, Zahid Hassan, Jiyeong Lee
1Center for Self-assembly and Complexity (CSC), Institute for Basic Science (IBS), Pohang, 790-784 (Republic of Korea); Department of Chemistry, Pohang University of Science and Technology, Pohang, 790-784 (Republic of Korea).
Abstract:
A facile synthesis of highly stable, water-dispersible metal-nanoparticle-decorated polymer nanocapsules (M@CB-PNs: M=Pd, Au, and Pt) was achieved by a simple two-step process employing a polymer nanocapsule (CB-PN) made of cucurbit[6]uril (CB[6]) and metal salts. The CB-PN serves as a versatile platform where various metal nanoparticles with a controlled size can be introduced on the surface and stabilized to prepare new water-dispersible nanostructures useful for many applications. The Pd nanoparticles on CB-PN exhibit high stability and dispersibility in water as well as excellent catalytic activity and recyclability in carbon-carbon and carbon-nitrogen bond-forming reactions in aqueous medium suggesting potential applications as a green catalyst.