| 射频等离子体技术制备合成低碳醇用新型Cu-Co/SiO_2催化剂(英文) |
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| 引用本文： | 徐慧远,储伟,邓思玉. 射频等离子体技术制备合成低碳醇用新型Cu-Co/SiO_2催化剂(英文)[J]. 物理化学学报, 2010, 26(2): 345-349. DOI: 10.3866/PKU.WHXB20100228 |
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| 作者姓名： | 徐慧远 储伟 邓思玉 |
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| 作者单位： | College of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China |
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| 基金项目： | The project was supported by the National Natural Science Foundation of China (20590363).国家自然科学基金 |
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| 摘 要： | 采用射频等离子体技术制备新型Cu-Co/SiO2催化剂.与直接焙烧制备的样品相比,射频等离子体处理提高了催化剂的比表面积,显著增大了活性物种Co的表面含量,有效改进了催化剂的还原性能.以CO加氢合成低碳混合醇为模型反应,在563K,5.0MPa,6000h-1,V(H2)∶V(CO)=1.6的条件下,等离子体处理和等离子体处理后再焙烧样品比673K焙烧样品的催化活性提高30.46%和65.30%,低碳醇的时空收率分别提高58.22%和76.11%.
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| 关 键 词： | 射频等离子体 一氧化碳加氢 铜钴基催化剂 低碳醇 |
| 收稿时间： | 2009-09-29 |
| 修稿时间： | 2009-12-08 |
Preparation of Copper-Cobalt-Silicon Catalysts for Higher Alcohol Synthesis by Glow Discharge Plasma |
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| XU Hui-Yuan,CHU Wei,DENG Si-Yu. Preparation of Copper-Cobalt-Silicon Catalysts for Higher Alcohol Synthesis by Glow Discharge Plasma[J]. Acta Physico-Chimica Sinica, 2010, 26(2): 345-349. DOI: 10.3866/PKU.WHXB20100228 |
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| Authors: | XU Hui-Yuan CHU Wei DENG Si-Yu |
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| Affiliation: | College of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China |
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| Abstract: | Novel Cu-Co/SiO2 catalysts were prepared by conventional impregnation methods with the assistance of glow discharge plasma technology. Compared with a conventional calcined sample,the plasma remarkably improved the specific surface area of the catalyst and increased the concentration of active cobalt species on the catalyst's surface. The reducibility of the cobalt was effectively improved as well. Catalytic test results showed that comparison to the conventional 673 K calcined sample,the CO hydrogenation a... |
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| Keywords: | Glow discharge plasma CO hydrogenation Copper-cobalt based catalyst Higher alcohol |
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