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

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 synthesis of inorganic nanocrystalline powder.