Relative Catalytic Activities of Carbon Nanotube-Supported Metallic Nanoparticles for Room-Temperature Hydrogenation of Benzene

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• 作者：Byunghoon Yoon ; Horng-Bin Pan ; Chien M. Wai
• 刊名：Journal of Physical Chemistry C
• 出版年：2009
• 出版时间：January 29, 2009
• 年：2009
• 卷：113
• 期：4
• 页码：1520-1525
• 全文大小：251K
• 年卷期：v.113,no.4(January 29, 2009)
• ISSN：1932-7455

文摘

Carbon nanotube-supported metallic nanoparticles including Pt, Rh, and bimetallic Pd−Rh are effective catalysts for the hydrogenation of neat benzene at room temperature, which cannot be achieved by carbon-based Pd and Rh catalysts available commercially. The rate of the hydrogenation reaction is zero-order with respect to benzene and first-order with respect to hydrogen and the catalyst. CNT-supported Pd and Au nanoparticles show negligible activity for room-temperature hydrogenation of benzene. The bimetallic Pd−Rh/CNT nanoparticle catalyst exhibits a strong synergistic effect relative to the individual single metal nanoparticles for catalytic hydrogenation of benzene, toluene, and 1-phenyl-1-cyclohexene.