THE METHOD OF SYNTHESIS OF THE IRON NANOPOWDER WITH THE PROTECTIVE OXIDIC COAT FROM NATURAL AND SYNTHETIC NANOPOWDERED IRON OXIDES AND OXIHYDROXIDES

摘要

preparation method nanopru00e1u0161kovu00e9ho iron with ochrannouslupkou tvorenou iron oxides reduction nanopru00e1u0161kovu00e9ho crystalline or amorphous precursor of carbon and oxihydroxidu iron in redukcnu00ed atmosphere spocu00edvu00e1vthein soucasnu00e9ho levy sekundu00e1rne resultant gaseous product nanopru00e1u0161kovu00fd crystalline or amorphous carbon or oxihydroxid iron on rozmerech cu00e1stic smaller than 20 nm to termicku00e9mu decompositionat redukcnu00ed atmosphere at the temperature higher than the minimum rozkladnu00e1 temperature for the carbon or oxihydroxid and the resulting nanopru00e1u0161kovu00e9 iron with a protective peel tvorenou iron oxides, such as feo.cooling in an inert atmosphere. as the inert atmosphere is nitrogen, argon or another noble gas.