摘要
利用乙胺对二氧化锆胶粒表面的修饰作用,降低胶粒的表面张力,避免胶粒的团聚,在乙胺-水体系中100℃回流制备出比表面积达到469m2/g的二氧化锆,粒径50-70nm.250℃以下焙烧可以将产物转化为四方型二氧化锆,但没有显著改变二氧化锆的比表面积和粒径分布.
In this paper,nano-scale amorphous zirconia with particles of 50-70 nm and specific surface area of 469 m^2/g was prepared in ethylamine-water system by ethylamine surface modification at 100 ℃.Through calcination at less 250 ℃,the product can be transformed into tetragonal crystal zirconia,but its surface area and particle size was not significantly changed.
出处
《鞍山科技大学学报》
2004年第5期324-326,共3页
Journal of Anshan University of Science and Technology
关键词
二氧化锆
乙胺
制备
hydrothermal
zirconia
ehtylamine
preparation(Recieved March 12,2004)
