纳米稀土氧化物的制备与表征+文献综述
毕业论文关键词：纳米 稀土氧化物 制备 表征
The preparation and characterization of nanometer rare earth oxides
Abstract：As the rare earth elements has a special air-rail 4f electronic structure and properties of nanometer, currently RE nanometer materials has become a hot research at home and abroad. Rare earth oxides, which are an important part of nanometer rare earth nanometer materials, because of its optical, electrical, magnetic, and thermal effects and other properties, can be widely used in magnetic, catalytic materials, glass and fiber optics and other fields, and extremely aroused big concern, rare earth oxide nanometer materials will be new material of the 21st century. In this paper, it use rare earth chloride or rare earth nitrate as raw materials, ammonia as the precipitating agent, ultrasonic dispersion as an adjunct and take the precipitation and hydrothermal method to the preparation of nanometer rare earth hydroxide particles, and finally get the nanometer rare earth oxide by calcinations.
Key Words: Nanometer; Rare earth oxides; Preparation; Characterization
目 录
1文献综述 1
1.1 纳米稀土氧化物的定义及概述 1
1.2 纳米稀土氧化物的原子结构 1
1.3 纳米稀土氧化物的种类 2
1.4 纳米稀土氧化物的制备方法 3
1.4.1 液相法 3
1.4.2 固相法 5
1.4.3 气相法 5
1.5 纳米稀土氧化物的应用领域 5
1.5.1 光学特性的应用 5
1.5.2 荧光特性的应用 6
1.5.3 催化性能的应用 6
1.5.4 作为原料的应用 6
1.6 现有问题 7
1.7 选题依据 7
1.8本课题的目的和意义 7
1.9研究内容和目标 7
1.9.1研究内容 7
1.9.2 研究目标 8
1.10课题创新点 8
2 实验部分 11
2.1 原料及试剂 11
2.2实验仪器 12
2.3实验方案 12
2.4基本反应原理 13
2.5 分析表征 14
2.5.1 红外光谱 14
2.5.2 X射线衍射仪 14
2.5.3 紫外光谱 15
2.5.4 扫描电子显微镜 16
2.5.5 比表面积测试仪 17
2.5.6 激光粒度仪 17
3 结果与讨论 19
3.1 产率分析 19
3.1.1 沉淀法 19
3.1.2 水热法 19
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