Nanoengineering of iron oxide and iron oxide/silica hollow spheres by sequential layering combined with a sol-gel process

Dai ZF; Meiser F; Mohwald H

Journal of Colloid and Interface Science, Vol.288, No.1, 298-300, 2005

DOI10.1016/j.jcis.2005.02.076 Export Citation

Nanoengineering of iron oxide and iron oxide/silica hollow spheres by sequential layering combined with a sol-gel process

Dai ZF, Meiser F, Mohwald H

Fe2O3 and Fe2O3/SiO2 hollow spheres with tailored dimensions and compositions were created by consecutively coating polystyrene (PS) latices either with Fe3+ alternately adsorbed with Nafion or combining a sol-gel process based on the hydrolysis of tetraethoxysilane (TEOS), and subsequently removing the cores upon pyrolysis. (c) 2005 Published by Elsevier Inc.

Keywords:hollow sphere;layer-by-layer self-assembly;iron oxide;silica;sol-gel process;nafion