Mn掺杂ZnO囊泡结构的制备(英文)  

Synthesis of Multi-shelled Mn-doped ZnO Hollow Spheres

作　　者：李铮铮[1,2] 张勇[1,2] 陈之战[1] 施尔畏[1] 

机构地区：[1]中国科学院上海硅酸盐研究所,上海200050 [2]中国科学院研究生院,北京100049

出　　处：《无机材料学报》2009年第6期1263-1266,共4页Journal of Inorganic Materials

基　　金：National Natural Science Foundation of China(50702071,50772122)

摘　　要：通过两步或三步法分别制备两层或三层结构的碳球模板,在溶液中的Zn离子和Mn离子在模板上吸附后再进行煅烧.TEM及SEM显示,煅烧后得到完全复制碳膜板结构的多层Mn掺杂ZnO囊泡.EDS显示Mn在ZnO中的掺杂含量约为1%.样品具有室温铁磁性,饱和磁化率(Ms)及矫顽磁场(Hc)分别为0.032A.m2/kg及0.781kA/m.这种Mn掺杂ZnO纳米囊泡结构使新奇的囊泡结构和ZnO的磁性性能得到了完美的结合.A simple synthesis method of multi-shelled magnetic Mn-doped ZnO hollow nanospheres were developed with the assistance of carbon templates.The multi-spheres carbon templates were prepared with two-or three-synthetic steps.The Zn and Mn metal ions in the solution were Absorbed onto the functional surface layer of carbon templates.The TEM and SEM images show single-,double-,and triple-shelled hollow spheres are obtained after calcination,and EDS spectrum shows the concentration of Mn is estimated to be 1%.The hollow nanospheres also have outstanding room temperature ferromagnetism magnetic properties.The saturation magnetization（Ms） is 0.032A·m2/kg,and the coercive field（Hc） is 0.781kA/m,respectively.

关 键 词：纳米结构 MN掺杂 氧化物 磁性材料 

分 类 号：O472[理学—半导体物理]