Hydrogen as a reducing agent: State-of-the-art science and technology

Conventional Fe-Co alloys are important soft magnetic materials that have been widely and commercially used in industry. Nanostructured materials exhibit superior magnetic properties, such as higher permeability and lower coercivity compared with their polycrystalline counterparts. Such materials are fabricated through various methods including reduction by hydrogen. B. -H. Lee et al.21 dissolved FeCl^sub 2^ and CoCl^sub 2^ powders in methyl alcohol to mix the salts and dried it at 70°C for 24 h.