有机修饰的含钴HMS对环己烷选择氧化反应的催化活性  

Catalytic Activity of Co-HMS Modified by Organic Groups for Cyclohexane Oxidation

作　　者：陈晨[1] 张巧红[1] 马红[1] 高进[1] 孙志强[1] 徐杰[1] 

机构地区：[1]中国科学院大连化学物理研究所

出　　处：《催化学报》2008年第1期4-6,共3页

基　　金：国家自然科学基金(20672111,20736010);中国科学院领域前沿创新基金(K2007D6)

摘　　要：以十六胺为模板剂,采用一步共聚的方法,室温下合成出了骨架含金属钴离子,表面连接疏水性有机基团的双功能化中孔氧化硅材料,并在环己烷液相氧化反应中考察了该材料的催化活性.有机基团的引入能够显著提高催化剂的活性,其中苯基效果最佳,其次是甲基和丙基.By a one-step co-condensation route using hexadecylamine as the template, various organic groups were successfully immobilized on the surface of hexagonal mesoporous silicas （HMS） along with Co^2＋ ions incorporated into the framework. The obtained bifunctionalized materials showed high activity in the selective oxidation of cyclohexane. The Co^2＋ cations were active for oxidation while the organic groups played the key roles in modifying the surface properties. During the oxidation reaction, a phenyl group was found to be better than methyl and propyl groups.

关 键 词：有机修饰 中孔氧化硅 环己烷 选择氧化 

分 类 号：O643.32[理学—物理化学]