微孔树脂镶嵌的α-Fe_2O_3纳米粒子催化苯酚过氧化氢羟化研究  

Studies of α-Fe_2O_3 Inlaid in Small Pore Resin and the Catalytical Activity in the Hydrogenation of Phenol with Hydrogen Peroxide

作　　者：于剑锋[1] 刘志强[1] 刘庆生[1] 汪大洋[1] 张文祥[1] 吴通好[1] 孙家锺[1] 

机构地区：[1]吉林大学化学系

出　　处：《高等学校化学学报》1999年第7期1125-1127,共3页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金

摘　　要：由于特殊的尺寸效应，纳米材料的晶粒间界面在整个材料中占有极大比例，这使其表现出与同质常规固体材料完全不同的物理化学性质［１］．纳米材料的这种特殊性质在催化反应中往往会表观出异常的催化活性［２］．微孔树脂由于材料不同，在其孔道结构内会形成不同的微环境，...A series of α Fe 2O 3 catalysts inlaid in small pore resin was synthesized and used in the reaction of phenol hydroxylation with H 2O 2. The amount of Fe inlaid was measured by atomic absorption. The results of Mssbauer spectra indicated that α Fe 2O 3 was the main state, and the average diameter was smaller than 5 nm. The conversion of phenol was about 24%, the selectivity of diphenol was higher than 90%, and the conversion of H 2O 2 almost reached 100% at the 3∶1 molar ratio of phenol to H 2O 2. These results reached the values of Enichems technology in Italy.

关 键 词：微孔树脂 铁 苯酚 过氧化氢 羟化 苯二酚 催化剂 

分 类 号：O625.312[理学—有机化学] O643.36[理学—化学]