Highly Stable, Water‐Dispersible Metal‐Nanoparticle‐Decorated Polymer Nanocapsules and Their Catalytic Applications. (19th May 2014)

• Record Type: Journal Article
• Authors: Yun, Gyeongwon; Hassan, Zahid; Lee, Jiyeong; Kim, Jeehong; Lee, Nam‐Suk; Kim, Nam Hoon; Baek, Kangkyun; Hwang, Ilha; Park, Chan Gyung; Kim, Kimoon
• Is Part Of: Angewandte Chemie. Volume 126:Number 25(2014)
• Page Start: 6532
• Page End: 6536
• Publication Date: 2014-05-19
• Subjects: Cucurbituril -- Heterogene Katalyse -- Nanopartikel -- Polymernanokapseln -- Trägermaterial; Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.201403438
• Languages: English
• ISSNs: 0044-8249

Abstract

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. Abstract : Maßgeschneidert: Verschiedene Metallnanopartikel wurden auf der Oberfläche von hohlen Polymernanokapseln (PNs) aus Cucurbit[6]uril (CB) synthetisiert. Die Nanokapseln verhindern die Selbstaggregation der Partikel und bewirken eine hohe Stabilität und Dispergierbarkeit. Pd@CB‐PNs zeigen in C‐C‐ und C‐N‐Kupplungen in Wasser gute Eigenschaften als heterogene Katalysatoren.