Synthesis of indium tin oxide nano-polycrystalline powders by ultrasonic spray pyrolysis  

作　　者：Li-Hua Zhang Sheng-Hui Guo Chao-Jin Zhou Jin-Hui Peng Shao-Hua Ju Jian-Bo Lan 

机构地区：[1]Yunnan Provincial Key Laboratory of Intensification Metallurgy,Kunming,650093,China [2]Key Laboratory of Unconventional Metallurgy,Ministry of Education,Kunming,650093,China [3]National Local Joint Laboratory of Engineering Application of Microwave Energy and Equipment Technology,Kunming,650093,China [4]Faculty of Metallurgical and Energy Engineering,Kunming University of Science and Technology,Kunming,650093,China [5]State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization,Kunming,650093,China

出　　处：《Rare Metals》2022年第10期3579-3584,共6页稀有金属（英文版）

基　　金：financially supported by the National Natural Science Foundation of China (Nos.51264015 and 51404116);Yunnan Provincial Science and Technology Innovation Talents Scheme—Technological Leading Talent (No.2013HA002)。

摘　　要：Indium tin oxide(ITO) nano-polycrystalline powders were prepared by ultrasonic spray pyrolysis(USP) method using a precursor solution of indium and tin chlorides in a simple one-step process without any post-heat treatment,additives and other complex operations.The morphology and crystal structure of ITO powders were studied by thermogravimetric and differential thermal analysis(TG-DTA),X-ray diffraction(XRD),energy-dispersive spectrometer(EDS),scanning electron microscopy(SEM),laser particle size analyzer(LPSA),transmission electron microscope(TEM),high-resolution transmission electron microscopy(HRTEM) and selected area electron diffraction(SAED),respectively.The results indicate that pure cubic ITO solid solution could be obtained at and above the pyrolysis temperature of 600℃.Through adjusting the size of atomized precursor droplets,the particles with regular spherical shape and smooth surface are also obtained.The spherical particles have a narrow size distribution with a dominant diameter size in the range of 0.52-1.28 μm,and the average value is 1.01 μm.The clear lattice fringes in HRTEM image confirm a polycrystalline structure of ITO particles with the growth direction along(222) direction.

关 键 词：Indium tin oxide Ultrasonic spray pyrolysis Nano-polycrystalline powder Chloride precursor 

分 类 号：TB383.3[一般工业技术—材料科学与工程]