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Preparation method of barium titanate nano-powder
The invention discloses a preparation method of barium titanate nano-powder. The preparation method comprises the following steps: mixing barium salt, a titanium source, saccharides and urea according to a certain ratio, putting the obtained mixture into a container, and carrying out uniform stirring and mixing under a heating condition of 60-120 DEG C to obtain a molten mixed solution; heating the molten mixed solution until the saccharides are dehydrated and carbonized to obtain a black brown solid; and carrying out heat treatment on the black brown solid to obtain the barium titanate nano-powder which is monodisperse, uniform in size and single in crystal form. According to the method, on one hand, a reaction temperature can be reduced, reaction uniformity can be improved, and the controllability of powder morphology can be improved; and on the other hand, the condition of particle aggregation can be reduced, and the prepared barium titanate nano-powder has the advantages of being small and uniform in particle size, low in impurity content, high in crystallinity and the like.
本发明公开了一种钛酸钡纳米粉体的制备方法，包括如下步骤：将钡盐、钛源、糖类、尿素按照一定比例混合置于容器中，在60～120℃加热条件下搅拌混合均匀得到熔融混合液；将熔融混合液进行加热，直至糖类脱水碳化得到黑褐色固体；将黑褐色固体进行热处理，即得单分散、大小均匀、晶型单一的钛酸钡纳米粉体。该方法一方面能降低反应温度、提高反应均匀性、提高粉体形貌的控制性，另一方面还能减少颗粒聚集的情况，所制备出的钛酸钡纳米粉体可具有粒径小且均一、杂质含量低、结晶度高等优点。
Preparation method of barium titanate nano-powder
The invention discloses a preparation method of barium titanate nano-powder. The preparation method comprises the following steps: mixing barium salt, a titanium source, saccharides and urea according to a certain ratio, putting the obtained mixture into a container, and carrying out uniform stirring and mixing under a heating condition of 60-120 DEG C to obtain a molten mixed solution; heating the molten mixed solution until the saccharides are dehydrated and carbonized to obtain a black brown solid; and carrying out heat treatment on the black brown solid to obtain the barium titanate nano-powder which is monodisperse, uniform in size and single in crystal form. According to the method, on one hand, a reaction temperature can be reduced, reaction uniformity can be improved, and the controllability of powder morphology can be improved; and on the other hand, the condition of particle aggregation can be reduced, and the prepared barium titanate nano-powder has the advantages of being small and uniform in particle size, low in impurity content, high in crystallinity and the like.
本发明公开了一种钛酸钡纳米粉体的制备方法，包括如下步骤：将钡盐、钛源、糖类、尿素按照一定比例混合置于容器中，在60～120℃加热条件下搅拌混合均匀得到熔融混合液；将熔融混合液进行加热，直至糖类脱水碳化得到黑褐色固体；将黑褐色固体进行热处理，即得单分散、大小均匀、晶型单一的钛酸钡纳米粉体。该方法一方面能降低反应温度、提高反应均匀性、提高粉体形貌的控制性，另一方面还能减少颗粒聚集的情况，所制备出的钛酸钡纳米粉体可具有粒径小且均一、杂质含量低、结晶度高等优点。
Preparation method of barium titanate nano-powder
一种钛酸钡纳米粉体的制备方法
JIANG XINGMAO (author) / CHEN LONG (author) / LIAO YUNFENG (author) / WU QILONG (author) / HUANG ZHENGXI (author) / GUO HESONG (author) / YI SHENGJUN (author) / ZHAO HE (author)
2022-02-01
Patent
Electronic Resource
Chinese
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