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| 高效催化3α-高托品烷肟加氢的Rh-Pd/C催化剂 |
| Efficient Rh-Pd/C Catalyst for Catalytic Hydrogenation of 3α-Granatoxime |
| 投稿时间：2019-12-24 |
| DOI： |
| 中文关键词: 催化化学 Rh-Pd二元合金 活性炭载体 表征 催化性能 |
| 英文关键词: catalytic chemistry Rh-Pd binary alloy activated carbon support characterization catalytic performance |
| 基金项目:陕西省科技厅重点产业创新链(群)(2019ZDLGY06-04) |
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| 中文摘要: |
| 采用甲醛还原-活性炭负载法制备了5%Rh/C、5%Pd/C和3%Rh-2%Pd/C三种催化剂，用X射线衍射(XRD)、电子显微镜(SEM和TEM)以及X射线光电子能谱(XPS)进行表征，对比其在合成3α-高托品烷胺中的催化性能。表征结果表明，在载体表面Rh-Pd二元合金颗粒粒径最小，分散性最好，可能形成了“网桥式”Rh-O-Pd结构。催化性能对比表明，3%Rh-2%Pd/C具有最佳催化性能，在25 h内可以将99%以上的原料转化，目标产物产率大于96%，且补加20%新催化剂后可循环使用3次，可降低3α-高托品烷胺生产成本。 |
| 英文摘要: |
| Three catalysts of 5%Rh/C, 5%Pd/C and 3%Rh-2%Pd/C were prepared by formaldehyde reduction-activated carbon (AC) loading method. X-ray diffraction (XRD), electron microscope (SEM and TEM) and X-ray photoelectron spectroscopy (XPS) was used to characterize these catalysts and its catalytic performance were compared in the synthesis of endo-9-methyl-9-azabicyclo [3,3,1] nonan-3-amine. The results of characterization show that the Rh-Pd binary alloy particles have the smallest particle size and the highest dispersion on the surface of AC, and may form a "network bridge" structure of Rh-O-Pd. The comparison of the catalytic performance shows that 3%Rh-2%Pd/C has the best catalytic performance. It was that more than 99% of raw materials and greater than 96% of target product yield were received within 25 h, and it can be recycled for 3 times with adding 20% fresh catalyst, which can reduce the production cost of 3α-granatamine. |
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