摘要
本文提出了一种共沉淀——溶液吸附法制备单分子层油酸包覆Fe_3O_4超微粒子的方法,并采用透射电镜比表面测定,差热和热重,X光衍射和红外光谱分析等对其颗粒的形状、大小和结构作了初步探讨.提出了颗粒度和油酸吸附量的简易估算和测定方法.
In this paper, the ultra-fine particles of Fe3O4 coated with a single layer of molecular oleic acid were prepared by the neutralizing co-precipitation solution-adsorption process. Tho particle size, shape and structure of Fe3O4.nOA wore primarily studied by electron microscopy, infrared speotroscopy, DTA-TG, X-ray diffraction, etc. Some of the methods of calculation and measurement of the particle size and quantity of oleic acid in Fe3O4.nOA were provided by testing and supposition.
出处
《应用科学学报》
CAS
CSCD
1989年第1期75-80,共6页
Journal of Applied Sciences
