| 专利名称 | Platinum/carbon nanotube catalyst, the preparation process and use thereof | 申请号 | US201013201233 | 专利类型 | US | 公开（公告）号 | US9421520(B2) | 公开（授权）日 | 2016.08.23 | 申请（专利权）人 | 中国科学院大连化学物理研究所 | 发明（设计）人 | Li Can;Chen Zhijian | 主分类号 | C07C67/30 | IPC主分类号 | C07C67/30;B01J23/42;B01J37/34;B01J21/18;B01J37/02;B82Y30/00;C07B35/02;B01J35/00;B01J37/00;B01J37/16 | 专利有效期 | Platinum/carbon nanotube catalyst, the preparation process and use thereof 至Platinum/carbon nanotube catalyst, the preparation process and use thereof | 法律状态 | 说明书摘要 | This invention provides a platinum/carbon nanotube catalyst applicable to heterogeneous asymmetric hydrogenation, which is fabricated by supporting platinum on carbon nanotube carriers. The catalyst is prepared by the steps of: heating purified carbon nanotubes in nitric acid, filtering and washing the same with water until pH value of the filtrate becomes neutral, drying the carbon nanotubes; immersing the carbon nanotube carriers obtained in an aqueous chloroplatinic acid solution and carrying out ultrasonic treatment at room temperature; immersing the mixture of the carbon nanotubes and the aqueous chloroplatinic acid solution under stirring; drying the material by heating to 110° C. from room temperature and maintaining this temperature; grinding the product to fine powders, reducing the fine powders with an aqueous sodium formate solution under a heating condition, filtering and washing the product with deionized water, and drying the product. The invention further provides a process for preparing a platinum/carbon nanotube catalyst and a use thereof in heterogeneous asymmetric hydrogenation. |
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