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Acta Chimica Sinica ›› 2009, Vol. 67 ›› Issue (10): 1155-1158. Previous Articles    

Reports

Cu(PPh3)2BH4作还原剂制备PtCu/C催化剂催化烯烃硅氢 加成反应研究

白 赢 彭家建 胡应乾 厉嘉云 邱化玉
蒋剑雄 来国桥*

  

  1. (杭州师范大学有机硅化学及材料技术教育部重点实验室 杭州 310012)

  • 投稿日期:2008-09-18 修回日期:2008-12-20 发布日期:2009-05-28
  • 通讯作者: 来国桥

Activated Carbon-Supported Bimetallic Catalyst Pt-Cu/C Using Cu(PPh3)2BH4 as Reductant: Preparation and Efficient Catalytic Performance in Hydrosilylation of Alkenes

Bai, Ying Peng, Jiajian Hu, Yingqian Li, Jiayun Qiu, Huayu
Jiang, Jianxiong Lai, Guoqiao*

  

  1. (Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education,
    Hangzhou Normal University, Hangzhou 310012)
  • Received:2008-09-18 Revised:2008-12-20 Published:2009-05-28
  • Contact: Lai, Guoqiao

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Activated carbon-supported platinum and copper bimetallic catalyst with Pt/Cu atomic ratios in the range of 0.5～2.0 was prepared by the impregnation of platinum salt followed by reduction using Cu(PPh3)2BH4 as the reductant. It was found that the catalytic performance of Pt/C catalyst was promoted in the presence of Cu. The catalyst, PtCu/C with a atomic ratio Pt/Cu of 1∶1, showed high catalytic selectivity as comparison with Speier’s, Karstedt’s or Pt/C catalyst in the hydrosilylation of styrene with triethoxysilane. In addition, it exhibited high activity and selectivity for catalysis hydrosilylation of various alkenes with triethoxysilane, and there was no apparent catalytic activity decreasing observed after 4 recycles.

Key words: Pt-Cu/C, hydrosilylation, Cu(PPh3)2BH4