A method of producing fine particles of an oxide of a metal, comprising the steps of: preparing an acidic solution which contains ions of the metal; precipitating fine particles of a hydroxide of the metal by adding an alkaline solution to the acidic solution; collecting the fine particles of the hydroxide of the metal precipitated in a mixed solution of the acidic solution and the alkaline solution; mixing fine particles of a carbon with the collected fine particles of the hydroxide of the metal; and heat-treating a mixture of the fine particles of the hydroxide of the metal and the fine particles of the carbon at a predetermined temperature in a non-reducing atmosphere, whereby the fine particles of the oxide of the metal are produced.
一种制备金属氧化物细小颗粒的方法,包括以下步骤:制备含有
金属离子的酸性溶液;通过向酸性溶液中加入碱性溶液,沉淀
金属的氢氧化物细小颗粒;在酸性溶液和碱性溶液的混合溶液中收集沉淀的
金属氢氧化物细小颗粒;将细小颗粒的碳与收集的
金属氢氧化物细小颗粒混合;并在非还原气氛下将
金属氢氧化物细小颗粒和碳细小颗粒混合物在预定温度下进行热处理,从而生成金属氧化物细小颗粒。