| 担载Ru-Co原子簇催化剂在乙烯甲酰化中的催化行为 |
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| 引用本文： | 肖丰收.担载Ru-Co原子簇催化剂在乙烯甲酰化中的催化行为[J].物理化学学报,1994,10(8):724-727. |
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| 作者姓名： | 肖丰收 |
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| 作者单位： | Department of Chemistry,Jilin University,Changchun 130023 |
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| 摘 要： | 众所周知，催化活性和选择性与活性组分的粒度，结构有很大的关系，而通过金属有机原子簇化合物载于无机载体上可以获得金属高分散度和金属组分组分均匀的催化剂，在一系列反应中显示了较高的活性和选择性［１－３］，在前面的研究中，肖丰收等报导了担载的Ｒｕ－Ｃｏ双金属原子簇催化剂在ＣＯ＋Ｈ２反应中对含氧化合物的形成显示了很高的活性和选择性［４－５］，在本文中利用红外光谱等技术研究了在ＳｉＯ２担载的Ｒｕ－Ｃｏ双金属
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| 关 键 词： | Ru-Co原子簇 乙烯甲酰化 含氧化合物 CO加氢反应 表面酰基 IR |
| 收稿时间： | 1993-03-03 |
| 修稿时间： | 1993-07-20 |
Catalytic Performance in Ethylene Hydroformylation over Silica Supported Ru-Co Bimetallic Carbonyl Cluster-Derived Catalysts |
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| Xiao Feng-Shou.Catalytic Performance in Ethylene Hydroformylation over Silica Supported Ru-Co Bimetallic Carbonyl Cluster-Derived Catalysts[J].Acta Physico-Chimica Sinica,1994,10(8):724-727. |
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| Authors: | Xiao Feng-Shou |
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| Institution: | Department of Chemistry,Jilin University,Changchun 130023 |
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| Abstract: | A series of catalysts such as Ru/SiO2, Co/SiO2 and Ru-Co/SiO2 were prepared by using the precursors of Ru, Co and Ru-Co carbony1 clusters. The catalytic performance in hydroformylation of ethylene showed that the activity and selectivity on a series of RuCo/Sio2 for C3-oxygenated products are much higher than those on Ru/SiO2 and Co/SiO2 catalysts. The adsorption of CO on reduced Ru-Co/SiO2 exhibited a hand at l680cm-1,which was assigned to the C- and O- ended CO chemisorbed on Ru-Co/SiO2 catalysts. The IR spectra of the reaction of C2H4+CO+H2 with Ru-Co/SiO2 catalysts showed bands at 1582 and 1555cm-1, which may possibly be assigned to formyl and C3-acyl species on the surface, they play very important role for the formation of C3-oxygenates in hydroformylation of ethylene. |
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| Keywords: | Ru-Co cluster Hydroformylation of ethylene Surface IR |
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