溶剂热条件下钴微纳米颗粒的构筑习性

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李春梅， 刘鲁梅*， 胡正水

 （青岛科技大学 材料科学与工程学院，山东 青岛 266042）

 摘要： 以乙酸钴为钴源，水合肼为还原剂，在不同表面活性剂下，溶剂热法制备出不同形貌的二维、三维钴微纳米颗粒。通过扫描电子显微镜（SEM）、X 射线能量色散谱（EDS）和X射线衍射（XRD）对产物进行了表征。采用自制的2十一烷基1二硫脲乙基咪唑啉季铵盐（SUDEI）为表面活性剂时，制备出直径400~600 nm，厚度约100 nm的六角盘状二维产物，采用其他表面活性剂只能制备出三维的花状钴。初步探讨了溶剂热条件下钴微纳米颗粒的构筑习性。

 关键词： 钴微纳米颗粒； 溶剂热法； 构筑习性

 中图分类号： O 643.38文献标志码： A

 收稿日期： 20130301

作者简介： 李春梅（1986—），女，硕士研究生.*通信联系人.

 Build Habit of Cobalt Micro/Nanoparticle in the Condition of Solvothermal

 LI Chunmei， LIU Lumei， HU Zhengshui

 (CollegeofMaterials Scienceand Engineering,QingdaoUniversityof Science and Technology,Qingdao266042,China)

 Abstract: Using cobalt acetate hexahydrate as cobalt source and hydrazine hydrate as reducing agent, the two/three dimension cobalt micro/nanoparticles of different morphology were synthesized by solvothermal method in different surfactants. The products were characterized by scanning electron microscope (SEM), energy dispersive spectrometer (EDS) and Xray diffraction (XRD). The twodimension Co hexagonal nanoplatelets, diameter about 400600 nm, thickniss 100 nm, were successfully synthesized when using 2undecyl1dithioureidoethylimidazoline (SUDEI) as surfactant, while using other surfactants obtained threedimension flowerlike cobalt. The possible growth mechanism of cobalt micro/nanoparticle in the condition of solvothermal was investigated as well.

 Key words: cobalt micro/nanoparticle； solvothermal method； growth mechanism