PREPARATION OF COLLOIDAL FE3O4 ULTRAFINE PARTICLES IN MICROEMULSIONS

被引:77
作者
LIZ, L [1 ]
QUINTELA, MAL [1 ]
MIRA, J [1 ]
RIVAS, J [1 ]
机构
[1] UNIV SANTIAGO DE COMPOSTELA,DEPT APPL PHYS,E-15706 SANTIAGO,SPAIN
关键词
D O I
10.1007/BF00357351
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The preparation of magnetite particles is reported from the precipitation of Fe2+/Fe3+ with NH4OH in several kinds of microemulsions: AOT/n-heptane/water microemulsions and a new non-toxic microemulsion system whose phase behaviour and structure has been recently studied. It is shown that both the droplet size and the presence of interactions in the dispersed phase greatly influence the final size of the obtained particles. In addition, the size of the particles can. be increased by successive repetition of the reaction inside the droplets of the microemulsion.
引用
收藏
页码:3797 / 3801
页数:5
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