Preparation and Catalytic Performance of Carbon Nanotube Supported Palladium Catalyst

✍ Scribed by Yan Zhang; Wei Chu; Lijuan Xie; Wenjing Sun

• Publisher: John Wiley and Sons
• Year: 2010
• Tongue: English
• Weight: 87 KB
• Volume: 28
• Category: Article
• ISSN: 0256-7660
• DOI: 10.1002/cjoc.201090165

✦ Synopsis

Abstract

Two carbon nanotube supported palladium catalysts were prepared using a chemical reduction technique (Pd/CR‐CNT) and a conventional impregnation method (Pd/CNT) respectively, and their catalytic performances for Heck reaction were investigated. The catalysts were characterized by TEM and XPS techniques and the products were characterized by ^1^H NMR. Research results showed that the (Pd/CR‐CNT) catalyst showed a better catalytic activity than the (Pd/CNT) catalyst, owing to better dispersion of palladium nanoparticles and stronger interaction between the active palladium species and carbon nanotube. Meanwhile, the product yield maintained 99.93% of its initial value at five‐times re‐use, compared with that at the first time use. The catalyst prepared with the chemical reduction method represented a better reusing performance.