Nitridation of silica to an α-silicon nitride nanorod using NaNH 2 in the autoclave at 700°C

Lingling Zhu, Luyang Chen, Tao Huang, Yitai Qian, Yunle Gu

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    21 Citations (Scopus)


    α-silicon nitride nanorods have been synthesized through solid-state reduction-nitridation of silica using NaNH2 as both a reductant and a nitriding reagent. X-ray powder diffraction patterns show that the products have a hexagonal phase with lattice parameters a = 7.767 Å and c = 5.630 Å. Transmission electron microscopy reveals that the as-synthesized products are pure nanorods with an average size about 30 nm in diameter and 400 nm in length. X-ray photoelectron spectra indicate that the molar ratio of Si/N is 2.988:4. Fourier-transform infrared spectrum yields a strong Si-N absorption at 926 cm-1 that may be a red shift due to size effect.

    Original languageEnglish
    Pages (from-to)1243-1245
    Number of pages3
    JournalJournal of the American Ceramic Society
    Issue number4
    Publication statusPublished - 2007 Apr

    ASJC Scopus subject areas

    • Ceramics and Composites
    • Materials Chemistry

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