Spinel structure nanometer cobalt blue pigment with fine grain size, low aggregates, fine distribution and gay coloures was prepared by sol-gel method, using metal alkoxide as raw material.

• 以金属醇盐为原料,采用溶胶-凝胶法制备出粒度均匀、粒径小、分散性好、颜色鲜亮具有尖晶石结构的纳米钴蓝颜料。