Preparation of Indium Oxide Particles by Spary Pyrolysis of Indium Nitrate

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J. Korean Ceram. Soc. > Volume 35(6); 1998 > Article

Journal of the Korean Ceramic Society 1998;35(6): 529.

질산 인듐 수용액의 초음파 분무열분해에 의한 산회인듐 입자의 제조

김기영, 박승민¹

삼성전관 기초연구 LAB
¹한국과학기술원 화학공학과

Preparation of Indium Oxide Particles by Spary Pyrolysis of Indium Nitrate

ABSTRACT

Agglomeration-free indium oxide particles were produced by ultrasonic pyrolysis of indium nitrate(3 hy-drate) solution. Th mean size of particles was increased from 3 $mutextrm{m}$ to 11$mutextrm{m}$ with increasing intial con-centrations of indium nitrate from 0.05mol% to 4.83 mol% When the input rate of indium nitrate solution was increased from 0.1 cm3/min to 0.8cm3/min the size of particles remained same and only the pro-duction rate of particles was increased. At 300$^{circ}C$ the particles were white color with low crystallinity. But the color turned into yellow with increasing reaction temperature. The change of particle size was not ob-served with increasing temperatuer up to 700$^{circ}C$ IR spectrum and TGA analysis confirmed that the purity of indium oxide was increased with temperature of reaction.

Key words: Aerosol, Spray pyrolysis, Indium nitrate, Indium oxide