Monodisperse carbon-polymer mesoporous spheres with magnetic functionality and adjustable pore-size distribution

被引:61
作者
Fuertes, Antonio B.
Tartaj, Pedro
机构
[1] CSIC, Inst Nacl Carbon, E-33080 Oviedo, Spain
[2] CSIC, Inst Ciencias Mat Madrid, Madrid 28049, Spain
关键词
hybrid materials; magnetic materials; mesoporous materials; structure-property relationships;
D O I
10.1002/smll.200600487
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A novel route to fabricate mesoporous carbon spheres (MCCs) that combines size control with chemical specificity and flexible magnetic functionality derived from nontoxic materials, is presented. This synthetic strategy involves the incorporation of superparamagnetic nanoparticles of nontoxic iron oxide ferrites with uniform and tunable particle size, throughout the porosity of MCCs. The carbons were prepared through a nanocasting technique using uniform mesoporous silica microspheres as sacrificial templates. This strategy also incorporate magnetic nanoparticles of iron oxide ferrites within the pores of the synthesized mesoporous carbon microspheres. This strategy allows the preparation of magnetically reversible monodisperse carbon spheres with flexible pore-size distribution and tunable magnetic moment. Pore size distribution of these materials can be modulated from mono-modal to bimodal.
引用
收藏
页码:275 / 279
页数:5
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