CeO_2负载的Cu,Ir和Pd催化剂上的醇转移脱氢反应  

Transfer Dehydrogenation of Alcohols over Ceria-Supported Cu, Ir, and Pd Catalysts

作　　者：宋伟 师瑞娟[2] 刘俊龙[2] 展恩胜[2] 李占双[1] 徐奕德[2] 申文杰[2] 

机构地区：[1]哈尔滨工程大学材料科学与化学工程学院,黑龙江哈尔滨150001 [2]中国科学院大连化学物理研究所催化基础国家重点实验室,辽宁大连116023

出　　处：《催化学报》2007年第2期106-108,共3页

摘　　要：研究了CeO2负载的Cu,Ir和Pd催化剂上的醇转移脱氢反应.利用催化剂体系脱氢和加氢功能的偶合,在较温和的反应条件下实现了二级脂肪醇的高选择性转移脱氢.其中,Ir/CeO2催化剂表现出较高的催化活性,其TOF值达16.0h-1.Ceria-supported Cu, Ir, and Pd catalysts showed quite promising activity for transfer dehydrogenation of cyclohexanol and 2-octanol to cyclohexanone and 2-octanone, respectively, using styrene as the hydrogen acceptor. The Cu/CeO2 and Pd/CeO2 catalysts were more active than the previously reported Cu and Pd catalysts supported on Al2O3, and Ir/CeO2 exhibited extremely high activity. The reactivity of alcohols decreased in the order 2-octanol 〉 cyclohexanol 〉 benzyl alcohol〉 1-octanol. The synergetic effect between the metals and CeO2 as well as the effective coupling of dehydrogenation of alcohols and hydrogenation of styrene was responsible for the high catalytic activity.

关 键 词：铜 铱 钯 二氧化铈 醇 转移脱氢 

分 类 号：O643.36[理学—物理化学]