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Synthesis of nano size Cerium Oxide by Glycothermal Processing
Synthesis of nano size Cerium Oxide by Glycothermal Processing
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机译:糖热法合成纳米级氧化铈
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摘要
PURPOSE: A method for producing ceria powder having nano size is provided to produce the powder useable as catalyst and/or polishing material having less than 100 nm diameter and uniform distribution of particle size by applying high temperature and high pressure together with organic solvent. CONSTITUTION: The method comprises applying cerium precursor as a starting material and glycol as the organic solvent; and synthesizing the mixture into the ceria powder product by adding any agents for regulating shape and granule size under 150-300 deg.C, 3-30kgf/cm¬2 of pressure for 1-48 reaction time. The cerium precursor is selected from Ce(NO3)36H2O, Ce2(C2O4)3xH2O, Ce2(SO4)3xH2O in a concentration of 0.1-2mole/l. The solvent is at least one or two selected from ethylene glycol, propylene glyco, 1-4 butanediol. The shape and granule size regulating agent is at least one or two selected from water, itaconic acid or HNO3.
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机译:用途:提供一种制备具有纳米尺寸的二氧化铈粉末的方法,以通过与有机溶剂一起施加高温和高压来制备可用作催化剂和/或抛光材料的粉末,该粉末具有小于100nm的直径和均匀的粒径分布。组成:该方法包括以铈前驱体为起始原料,以乙二醇为有机溶剂。通过在150-300℃,3-30kgf / cm 2的压力下添加任何调节形状和颗粒尺寸的试剂1-48反应时间,将混合物合成为二氧化铈粉末产物。铈前体以0.1-2摩尔/升的浓度选自Ce(NO3)36H2O,Ce2(C2O4)3xH2O,Ce2(SO4)3xH2O。溶剂是选自乙二醇,丙二醇,1-4丁二醇中的至少一种或两种。形状和粒度调节剂是选自水,衣康酸或HNO 3中的至少一种或两种。
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