中文摘要：

以工业高纯氧化钕微粉为起始原料,在不使用表面活性剂的情况下通过简单的水热合成法制备出氢氧化钕一维纳米棒,采用X射线衍射仪、扫描电子显微镜和透射电子显微镜对其组成及形貌结构进行了系统表征。研究表明,合成过程中水热体系的反应温度、pH值、反应物初始浓度及反应时间对最终产物的形貌结构具有较大影响,当反应温度为180℃、溶液体系pH值约为9.5、Nd3＋浓度为0.12mol/L时,经12h反应可以大量制备形态均一、相纯度高的六方相氢氧化钕晶体纳米棒。该氢氧化钕纳米棒在空气气氛下500℃焙烧后形成具有体心立方结构的C型Nd2O3,该Nd2O3仍具有一维纳米棒形貌。

英文摘要：

One-dimensional nanorods of neodymium hydroxide （Nd（OH）3） have been synthesized by a hydro-thermal technique using industrial neodymium oxide （Nd2O3 ） ultra micro powders as starting material in the absence of any surfactants. The products are characterized by X-ray diffraction （XRD）, scanning electron microscope （SEM） and transmission electron microscope （TEM）. It reveals that the reaction temperature, pH value, monomer concentration of starting material and reaction time have great influence on the morphological evolution of the final products. Crystalline Nd（OH）3 nanorods with high purity （over 90%） and good structural uniformity could be mass produced after a 12h cycle at 180℃ in a solution system with pH value of 9. 5 when the concentration of the neodymium source is 0.12mol/L. After the calcination of neodymium hydroxide nanorods at 500℃ in air, the C-type neodymium oxide nanorods with bcc structure are obtained.