Core–Shell Assembled Nanoparticles as Catalysts

✍ Scribed by C. J. Zhong; M. M. Maye

• Publisher: John Wiley and Sons
• Year: 2001
• Tongue: English
• Weight: 211 KB
• Volume: 13
• Category: Article
• ISSN: 0935-9648
• DOI: 10.1002/1521-4095(200110)13:19<1507::aid-adma1507>3.0.co;2-#

✦ Synopsis

The deliberate tailoring of nanoparticles supported on oxides, dispersed in dendrimers and encapsulated in monolayer shells could lead to novel catalytic applications. The study of core±shell assembled gold or alloy nanoparticles for electrocatalytic oxidation of carbon monoxide and methanol stems, in part, from recent insights in core± shell reactivities and, in part, from surprising findings of catalytic activities of oxidesupported gold nanoparticles. Monolayer-encapsulated metallic nanoparticles serve as intriguing model building blocks towards catalysts. Whether such core±shell nanoparticles can in general be developed into aggregation-and poison-resistant catalysts of high catalytic activities rests with our capabilities in catalytic activation and structural manipulation.