【作者】 王慧茹；

【导师】 曹志峰； 董相廷；

【作者基本信息】 长春理工大学 ， 材料学， 2006， 硕士

【摘要】 自1991年发现碳纳米管以来，一维纳米材料特殊的物理性质以及潜在的广泛应用前景，使得一维纳米材料倍受关注。开拓并完善一维纳米材料的制备方法已成为当前物理、化学、材料科学等诸多学科领域的研究热点。 水热反应因其操作简单、组成及纯度可控等优点和制备某些物质的不可替代性受到越来越多的重视。本文简单介绍了水热法的基本原理及制备技术，并利用水热法成功地制备了Y（OH）₃、Y₂O₃、Y₂O₃：Eu³⁺一维纳米材料。探讨了水热反应中影响产物形貌和大小的因素，如温度、沉淀剂浓度、表面活性剂及焙烧温度，从而有效地控制材料结构，并利用TEM，XRD，TGA-DTA对产物的形貌进行了详细地表征，获得了一些有意义的结果。更多还原

【Abstract】 Since the discovery of carbon nanotubes（CNTs） by Iijima in 1991,one-dimensional nanostructure（nanorods,nanowires,nanobelts and nanotubes） have attracted much attention due to their special physical properties and potential technological application. Developing new preparation methods of one-dimensional nanomaterials is a very important subject in current research activities in the fields of physics, chemistry and materials science,etc.Hydrothermal method has received more and more attention owing to its merits such as simple operation, controllable components and purity, and non-replacement for preparation of certain compounds. In this dissertation, The basic principles and synthesis technology of hydrothermal method were simply introduced, and Y（OH）₃,Y₂O₃,Y₂O₃:Eu³⁺ one-dimensional nanomaterials were prepared successfully. The effect factors on the product morphology and size were discussed, such as the temperature, precipitator concentration, surfactant and calcination temperature. As a result, the materials structure was controlled validly.The prepared samples were studied systematically and deeply by TEM, XRD,TGA-DTA techniques. Some new results were obtained.更多还原