纳米CeO_2的生物模板法制备  

Preparation of Nano-CeO_2 by Using Biologic Templates

作　　者：龚良玉[1] 曹永军[2] 李群国[1] 

机构地区：[1]青岛农业大学化学与药学院,山东青岛266109 [2]驻马店教育学院,河南驻马店463000

出　　处：《化学研究》2009年第4期31-33,共3页Chemical Research

基　　金：青岛农业大学人才基金资助项目(630524)

摘　　要：选择孔道丰富的锯末、竹炭、滤纸等廉价可再生的原料为模板,结合溶胶-凝胶法成功地制备了纳米CeO2颗粒.借助X射线衍射(XRD)、透射电镜(TEM)及高分辨透射电镜(HRTEM)对所制备的纳米材料的晶型和形貌进行了表征.测试结果表明产物均为结晶性良好的球形立方晶系CeO2,样品的粒径分布范围较窄,其平均直径依次为17,15,10 nm左右.CeO2 nanoparticles were synthesized successfully by using porous, low-cost, reproducible sawdust, bamboo charcoal, and filter paper as biologic templates in conjunction with sol-gel method. The structure and morphology of the as-synthesized samples were investigated by means of X-ray dif- fraction （XRD） and transmission electron microscopy （TEM）. The results indicate that ceria samples exhibit a spherical structure and have an average diameter of ca. 17nm, 15nm and 10 nm, respective- ly. And they had a narrow size distribution.

关 键 词：可再生原料 模板 纳米CEO2 制备 

分 类 号：O614.33[理学—无机化学]