后修饰法合成介孔钴金属有机框架及其催化烯烃环氧化  

A New Mesoporous Cobalt Metal-organic Framework was Synthesized by Post-functionalization and Its Application for the Epoxidation of Olefins

作　　者：沙莎[1,2] 李军[2] 庄长福[2] 刘术侠[1] 高爽[2] 

机构地区：[1]东北师范大学多酸化学研究所,长春130024 [2]中国科学院大连化学物理研究所,大连116023

出　　处：《应用化学》2014年第7期799-805,共7页Chinese Journal of Applied Chemistry

基　　金：中国博士后科学基金(2013M541257)资助项目~~

摘　　要：通过后修饰水热合成法制备了新型Co2+配位的金属有机框架材料,并采用红外、电感耦合等离子分析和N2吸附等技术手段对其进行了表征。在氧气/异丁醛反应体系中,介孔钴金属有机框架对烯烃环氧化反应表现出较高的活性。其中,环辛烯的转化率及环氧环辛烷的选择性分别达到了94%和91%,转化频率(TOF)值为509 h-1。催化剂循环使用5次之后,其结构和活性无明显变化。A newly Co2＋ coordinated metal-organic framework had been successfully synthesized via one-step post-functionalization by hydrothermal method and characterized by Fourier transform infrared spectrometer,N2 adsorption and inductively coupled plasma.Using O2 as oxidant,mesoporous cobalt metal-organic framework was investigated as a heterogeneous catalytic material for the epoxidation of various olefins.Among them,the conversion of cyclooctene and the selectivity of epoxycyclooctane are 94% and 91%,respectively,and the turnover frequency is 509 h^-1.PCN-100（Co） exhibits excellent stabihties in 5 recycles without any loss of catalytic performance.

关 键 词：金属有机框架 后修饰 烯烃环氧化 分子氧 

分 类 号：O643.3[理学—物理化学]