温控相分离纳米Rh催化1,5-环辛二烯选择性加氢反应  

Thermoregulated Phase-Separable Catalysis for Rh Nanoparticle Catalyzed Selective Hydrogenation of 1,5-Cyclooctadiene

作　　者：徐贻成[1] 王艳华[1] 曾艳[1] 宋颖[1] 赵家骐 蒋景阳[1] 金子林[1] 

机构地区：[1]大连理工大学精细化工国家重点实验室,辽宁大连116024

出　　处：《催化学报》2012年第12期1871-1876,共6页

基　　金：国家自然科学基金(21173031);教育部新世纪优秀人才支持计划(NCET-07-0138)~~

摘　　要：发现离子液体[CH3(OCH2CH2)nN+Et3][CH3SO3-](ILPEG,n=12,16,22)具有临界溶解温度特性,据此确证了以ILPEG为稳定剂制得的Rh纳米催化剂具有温控相分离催化功能,并将其用于1,5-环辛二烯(1,5-COD)选择性加氢制环辛烯(COE)的反应中.在优化的反应条件下,1,5-COD转化率和COE选择性分别为99%和90%;Rh纳米催化剂经简单分相即可与产物分离,催化剂循环使用10次,其活性和选择性无明显降低.Through the study of the critical solution temperature of ionic liquids [CH3（OCH2CH2）nN＋Et3][CH3SO3-] （ILPEG,n=12,16,22）, ILPEG-stabilized Rh nanoparticle catalysts have been found to function as thermoregulated phase-separable catalysts and have been shown to be efficient and recyclable for the selective hydrogenation of 1,5-cyclooctadiene （1,5-COD） to cyclooctene （COE）.Under optimized conditions,the conversion of 1,5-COD and selectivity for COE were 99% and 90%,respectively.The Rh catalyst could be recovered by simple phase separation and reused for ten times without loss of activity or selectivity.

关 键 词：温控相分离催化 离子液体 铑纳米粒子 选择性加氢 1 5-环辛二烯 

分 类 号：O643.32[理学—物理化学]