化学研究与应用
化學研究與應用
화학연구여응용
CHEMICAL RESEARCH AND APPLICATION
2009年
12期
1653-1656
,共4页
王璟%董赛男%栾雪梅%商少明
王璟%董賽男%欒雪梅%商少明
왕경%동새남%란설매%상소명
钛酸钡%直接沉淀法%酸度
鈦痠鋇%直接沉澱法%痠度
태산패%직접침정법%산도
barium titanate%direct precipitation%pH
The effect and the mechanism of pH on the preparation of BaTiO_3 by direct precipitation method were discussed.The result shows that BaTiO_3 can be formed only when pH is above 13 under certain energy field.OH-in the reaction not only acts as a reagent of neutralization,but also plays two vital role.The first role is promoting Ti and Ba to form active,easily absorptive or coprecipitated BaTiO_3.The second role is acting as a catalyst stimulating the formation of BaTiO_3.
