STUDY ON CATALYSIS BY CARBONYL CLUSTER-DERIVED SIO2-SUPPORTED RHODIUM FOR ETHYLENE HYDROFORMYLATION
文献类型：期刊论文
| 作者 | HUANG, L; XU, YD; GUO, WG; LIU, AM; LI, DM; GUO, XX |
| 刊名 | CATALYSIS LETTERS
 |
| 出版日期 | 1995 |
| 卷号 | 32期号:1-2页码:61-81 |
| 关键词 | Rh-4(Co)(12)-derived Rh/sio2 Surface Rh-0 Rh-0 Oxidation Ethylene Hydroformylation Ethylene Hydrogenation Structure Sensitive Structure Insensitive Coordinative Unsaturation |
| ISSN号 | 1011-372X |
| 文献子类 | Article |
| 英文摘要 | Atmospheric hydroformylation of ethylene was studied under differential conditions over Rh-4(CO)(12)-derived Rh/SiO2 catalysts. The specific activities as functions of Rh dispersions show that ethylene hydroformylation is structure sensitive and ethylene hydrogenation structure insensitive. These structural dependences and in situ IR observations show that Rh-0 is the unique active site for catalytic ethylene hydroformylation on Rh/SiO2. The reactions of Rh-0-coordinated CO and Rh-0-adsorbed CO with C2H4 + H-2 at 293 K were monitored by IR spectroscopy. The linear CO adsorbed on Rh-0/SiO2 is consumed with formation of propanal, whereas the coordinated CO in Rh-6(CO)(16)/SiO2 and its derivative do not participate in CO insertion. IR study of the thermal decomposition of Rh-6(CO)(16)/SiO2 indicates that the cluster can be stabilized on the surface up to 548 K by gaseous CO under hydroformylation conditions. Moreover, the Rh-6(CO)(16)/SiO2 system exhibits increased catalytic hydroformylation activity with reducing coordinated CO. These results show that coordinative unsaturation on the Rh-0 surface is necessary for heterogeneously rhodium-catalyzed hydroformylation and that totally decarbonylated Rh-0/SiO2 is most effective. In addition, the oxidation of Rh-0 by surface OH- is discussed. |
| WOS关键词 | SUPPORTED RHODIUM ; MONOXIDE ; CO ; HYDROGENATION ; CHEMISORPTION ; SILICA ; METAL ; SPECTROSCOPY ; DECOMPOSITION ; SELECTIVITY |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:A1995QZ66300007 |
| 出版者 | BALTZER SCI PUBL BV |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/167806]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 通讯作者 | HUANG, L |
| 推荐引用方式 GB/T 7714 | HUANG, L,XU, YD,GUO, WG,et al. STUDY ON CATALYSIS BY CARBONYL CLUSTER-DERIVED SIO2-SUPPORTED RHODIUM FOR ETHYLENE HYDROFORMYLATION[J]. CATALYSIS LETTERS,1995,32(1-2):61-81. |
| APA | HUANG, L,XU, YD,GUO, WG,LIU, AM,LI, DM,&GUO, XX.(1995).STUDY ON CATALYSIS BY CARBONYL CLUSTER-DERIVED SIO2-SUPPORTED RHODIUM FOR ETHYLENE HYDROFORMYLATION.CATALYSIS LETTERS,32(1-2),61-81. |
| MLA | HUANG, L,et al."STUDY ON CATALYSIS BY CARBONYL CLUSTER-DERIVED SIO2-SUPPORTED RHODIUM FOR ETHYLENE HYDROFORMYLATION".CATALYSIS LETTERS 32.1-2(1995):61-81. |
入库方式： OAI收割
来源：大连化学物理研究所
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