Nanosized cobalt ferrite powders obtained by pyrolytic extraction

Heterostructures were prepared from MSM molecular sieves and magnetic materials by extraction pyrolysis. The molecular sieves were filled with solutions of extracts and heated to remove the organic phase and form an inorganic material. The annealing and dissolution of the MSM-41 molecular sieve gave nanosized cobalt ferrite powder with particles of 40 nm and a coercive force 5000 Oe.