煅烧铟锡氢氧化物和氯化钠混合粉末制备铟锡氧化物纳米粉体的研究.doc


煅烧铟锡氢氧化物和氯化钠混合粉末制备
铟锡氧化物纳米粉体的研究
苏兴华,孟雷超,王本盼,赵鹏,艾涛,阎鑫
(长安大学材料科学与工程学院,西安 710061)
摘要:铟锡氧化物(ITO)是一种重要的半导体材料,制备团聚轻、颗粒细小的 ITO 纳米粉体具有重要的
意义。在 500℃下煅烧铟锡氢氧化物[Sn:In(OH)3]和 NaCl 的混合粉末 2 h, 然后冷却并经过水洗制备 ITO 纳
米粉体。XRD 和 TEM 研究结果表明,利用 NaCl 颗粒能有效阻止纳米粉体硬团聚的形成。ITO 纳米粉体结
晶良好,平均颗粒尺寸为 18 nm, 尺寸分布窄、团聚轻。本工艺为合成无机纳米粉体提供了一种新的方法。
关键词:铟锡氧化物;纳米粉体;煅烧;氢氧化铟;氯化钠
中图分类号:TB34
文献标志码:A
Preparation of nanocrystalline indium tin oxide powder by
calcining the mixture of indium tin hydroxide and sodium
chloride
Su Xinghua, Meng Leichao, Wang Benpan, Zhao Peng, Ai Tao, Yan Xin
(School of Materials Science and Engineering, Chang’an University, Xi’an 710061, China)
Abstract: Indium tin oxide (ITO) is a very important semiconductor material. It is of great importance to prepare
weakly agglomerated and fine nanocrystalline ITO powder. Well-crystallized nanocrystalline ITO powder has been
prepared by calcining a powder mixture of indium tin hydroxide [Sn:In(OH)3] and NaCl for 2 h at 500℃, and then
washing with water. The X-ray diffraction (XRD) and transmission electron microscope (TEM) study showed that
NaCl particles can efficiently inhibit the hard agglomeration of the ITO nanoparticles. The obtained
nanocrystalline ITO powder with an average particle size of 18 nm displays a high crystallinity, a narrow size
distribution, and weak agglomeration. This technique provides a new method for the synth