超细氧化锡粉末的研制

来源期刊：中南大学学报(自然科学版)1999年第2期

论文作者：段学臣 黄蔚庄

文章页码：66 - 68

关键词：氧化锡;超细粉末;溶胶-凝胶法

Key words：tin oxide; ultrafine powder; sol-gel method

摘    要：采用溶胶 凝胶法制备了超细氧化锡粉末，并研究了粉末的特性．实验结果表明：适宜的制备条件是，以四氯化锡为原料，进行水解反应的酸度pH2~5，保持酸度恒定，控制反应的温度25～70℃，在反应底液中加入筛选的分散剂，反应过程中剧烈搅拌，能够获得超细氧化锡粉末．对产品进行了X射线衍射、红外光谱分析和比表面积测定等．这一制备技术具有设备与流程简单，操作条件容易控制，产品粒度细(0.025 μm)，纯度高(>99.9%)，比表面积大(32 m²/g)，性 能好等特点.

Abstract: The ultrafine SnO ₂ powder was prepared by the sol gel method. And the properties of the product were studied. The experimental results show that the appropriate preparing conditions are as follows: using tin tetrachloride as original material, hydrolysis acidity pH 2～5, containing constant acidity, controlling reaction temperature 25～70 ℃, adding selected disperser to reaction base solution. When vigorously stirred, ultrafine SnO ₂ can be obtained. Some characteristic properties of the product were determined by X ray diffraction, ultrared spectral and BET method and so on. The preparing technique has many advantages: simple equipment and flowsheet, easy controlling operation conditions, fine powder of uniform size(0.025 μm), high purity(>99.9%), large specific surface area(32 m²/g), and good properties of the product.