Low-temperature approach to synthesize iron nitride from amorphous iron

    Authors

    Y. Han; H. M. Wang; M. H. Zhang; M. Su; W. Li;K. Tao

    Comments

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    Abbreviated Journal Title

    Inorg. Chem.

    Keywords

    SONOCHEMICAL SYNTHESIS; MAGNETIC-PROPERTIES; METAL NITRIDES; FILMS; GROWTH; NITROGEN; FE16N2; Chemistry, Inorganic & Nuclear

    Abstract

    Iron nitride was prepared by a nitridation reaction in NH3 using amorphous iron as precursor. The precursor was prepared at ambient temperature through the process of reducing ferrous sulfate by potassium borohydride, followed by the nitridation at different temperatures. The nitridation reaction occurred at 548 K, and epsilon-Fe2-3N was formed at 573 K. The reaction temperature was much lower than that using crystallized iron because of the characteristics of the amorphous materials. The existence of a small quantity of boron (1.6 wt.%) improved the stability of the amorphous precursor, which guaranteed an amorphous iron precursor at nitriding temperatures in excess of 548 K.

    Journal Title

    Inorganic Chemistry

    Volume

    47

    Issue/Number

    4

    Publication Date

    1-1-2008

    Document Type

    Article

    Language

    English

    First Page

    1261

    Last Page

    1263

    WOS Identifier

    WOS:000253115300007

    ISSN

    0020-1669

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