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.
出处
《催化学报》
SCIE
EI
CAS
CSCD
北大核心
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)~~
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
thermoregulated phase-separable catalysis
ionic liquid
rhodium nanoparticle
selective hydrogenation
1
5-cyclooctadiene
