Pt nanoparticles deposited over carbon nanotubes for selective hydrogenation of cinnamaldehyde

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• 作者：Hongxia Ma ; Licheng Wang ; Luyang Chen ; Chao Dong ; Weichao Yu ; Tao Huang ; Yitai Qian
• 关键词：Cinnamaldehyde hydrogenation ; Carbon nanotubes (CNTs) ; Inner diameter ; Platinum particles
• 刊名：Catalysis Communications
• 出版年：2007
• 期刊代码：12_15667367
• 类别：ce
• 出版时间：March 2007
• 卷：8
• 期：3
• 页码：452-456
• 文件大小：539 K

摘要

Two kinds of carbon nanotubes (CNTs) with different inner diameter (less than 10 nm: CNTs-1 and between 60 and 100 nm: CNTs-2) were used as catalyst supports. The platinum particles were simply deposited on the outside surface (CNTs-1) and inside (CNTs-2) and were easily reduced to Pt⁰ by refluxing. The catalysts exhibit high activities in the selective hydrogenation of cinnamaldehyde which contains both CC and CO bonds. But the selectivity of these two catalysts was quite different under same reaction conditions. The high selective hydrogenation of CO bond was observed over catalyst 3%Pt/CNTs-2, while the completely hydrogenation of both CC and CO bonds was found over catalyst 3%Pt/CNTs-1.