Magnetic Resonance Studies of Hybrid Nanocomposites Containing Nanocrystalline TiO and Graphene-Related Materials.

Nanocomposites based on nanocrystalline titania modified with graphene-related materials (reduced and oxidized form of graphene) showed the existence of magnetic agglomerates. All parameters of magnetic resonance spectra strongly depended on the materials' modification processes. The reduction of graphene oxide significantly increased the number of magnetic moments, which caused crucial changes in the reorientation and relaxation processes.

The Use of Ultra-Small FeO Magnetic Nanoparticles for Hydrothermal Synthesis of Fe-Doped Titanate Nanotubes.

A method of the hydrothermal synthesis of Fe-doped titanate nanotubes (TNT) is reported in which the ultra-small FeO nanoparticles are used as the sources of Fe ions. The magnetic nanoparticles with a diameter of about 2 nm are added during the washing stage of the hydrothermal procedure. During washing, they gradually degrade and at the same time, the titanate product is transformed into nanotubes.