文献类型：期刊文献

英文题名：High Performance of Palladium Nanoparticles Supported on Carbon Nanotubes for the Hydrogenation of Commercial Polystyrene

作者：Han, Kai-Yue[1];Zuo, Hao-Ran[1];Zhu, Zhen-Wei[1];Cao, Gui-Ping[1];Lu, Chong[2];Wang, Yan-Hua[2]

机构：[1]E China Univ Sci & Technol, State Key Lab Chem Engn, UNILAB, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

年份：2013

卷号：52

期号：50

起止页码：17750

外文期刊名：INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH

收录：;EI(收录号：20135217140265);WOS:【SCI-EXPANDED(收录号:WOS:000328865300006)】；

基金：We gratefully acknowledge the financial support provided by the Non-governmental International Science and Technology Cooperation Program (10520706000) from the Science and Technology Commission of Shanghai Municipality, the Ph.D. Programs Foundation of Ministry of Education of China (20110074110012), and the State Key Laboratory of Chemical Engineering open fund (SKL-ChE-09C07). We are also thankful to Professor G. W. Roberts for his generous support.

语种：英文

外文关键词：Hydrogenation - Palladium compounds - Activation analysis - Activation energy - Catalyst activity - High resolution transmission electron microscopy - Yarn - Atomic emission spectroscopy - Nanocatalysts - Polystyrenes - X ray diffraction - Catalyst supports - Palladium - Inductively coupled plasma

摘要：The carbon nanotube (CNT) supported palladium catalysts were synthesized by the impregnation method and applied in the hydrogenation of commercial polystyrene (PS) for the first time. The Pd/CNT catalysts displayed a quite excellent hydrogenation activity compared with those of traditional catalysts, e.g., Pd/AC or Pd/BaSO4, and allowed the reaction to be carried out under milder reaction conditions. The physical and chemical properties of Pd/CNTs were characterized by inductively coupled plasma-atomic emission spectrometry, N-2 physisorption, transmission electron microscopy, X-ray diffraction, CO chemisorption, and kinetics analysis. The catalyst characterization results showed that the active metal deposited on the external surface of CNTs with good dispersion. Kinetics analysis showed that the activation energy of Pd/CNTs was similar to comparison catalysts, while the TOF of Pd/CNTs (0.102 s(-1)) was much higher. The high external surface area and the interaction between polymer and CNTs could be the reason for the high performance of Pd/CNTs.