CAJ | 학술논문

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.
발현리자액체[CH3(OCH2CH2)nN+Et3][CH3SO3–](ILPEG, n =12,16,22)구유림계용해온도특성,거차학증료이 ILPEG 위은정제제득적 Rh 납미최화제구유온공상분리최화공능,병장기용우1,5-배신이희(1,5-COD)선택성가경제배신희(COE)적반응중.재우화적반응조건하,1,5-COD 전화솔화 COE 선택성분별위99%화90%; Rh 납미최화제경간단분상즉가여산물분리,최화제순배사용10차,기활성화선택성무명현강저.
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 condi-tions, 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.