水热法制备掺Mn的ZnS纳米线及其磁学性能(英文)  

Magnetic Properties of Manganese-Incorporated Zinc Sulfide Nanowires Synthesized by a Hydrothermal Process

作　　者：葛洪良[1] 钟敏[1] 林华[1] 吴琼[1] 司平占[1] 

机构地区：[1]中国计量学院材料科学与工程学院,浙江杭州310018

出　　处：《稀有金属材料与工程》2008年第A02期261-264,共4页Rare Metal Materials and Engineering

基　　金：NNSFC(No.20571067);China Jiliang University Natural Science Foundation(XZ0512,2006YB11)

摘　　要：采用水热法在低温下制备了MnxZn1-xS纳米线。MnxZn1-xS纳米线的形貌和微观结构用透射电子显微镜和X射线衍射仪进行表征。磁性能用振动样品磁强计进行测试。MnxZn1-xS的形貌取决于Mn的含量和在ZnS纳米粒子内外的分布。未掺杂Mn的ZnS纳米线的直径和长度分别为80～200nm和10～20μm。随着Mn含量的增加,MnxZn1-xS纳米线的平均直径逐渐增加,长径比不断减小。X射线衍射结果表明MnxZn1-xS纳米结构结晶性好,为六方纤锌矿结构。在Mn的掺杂量为0.25%时,矫顽力达到最大。随着Mn掺杂量的增加,饱和磁化强度也不断非线性增强。MnxZn1-xS nanowires were synthesized by hydrothermal method at low temperature. The morphology and microstructure of ZnS nanowires doped with Mn element were characterized by TEM and XRD. And the magnetic properties of them were examined by VSM （Lakeshore）. The morphologies of MnxZn1-xS depend on the content of Mn and the Mn distribution within the nanoparticles. The diameters and lengths of the undoped ZnS nanowires varied within 80-200 nm and 10N20 μm, respectively. With the increase of Mn content in the ZnS, the mean diameter of nanowires increased and the aspect ratio of nanowires decreased. The XRD patterns revealed that MnxZn1-xS nanostructures were crystallized well with hexagonal wurtzite structure. The intensity of coercive force attained its maximum at 0.25% Mn incorporation. Saturation magnetization increased with the increase of Mn concentration non-linearly.

关 键 词：MnxZn1-xS 纳米线 水热 磁性能 

分 类 号：O614[理学—无机化学]