Solvothermal Synthesis of Si3N4 Nanomaterials at a Low Temperature
Silicon nitride nanowires or nanorods have been synthesized from SiCl4, NaN3, and metallic Mg at temperatures ranging from 200° to 300°C. X-ray powder diffraction patterns indicated that the as-obtained products were mainly -Si3N4. Scanning electron microscope and high-resolution transmission electronic microscopy showed that the samples mostly consisted of Si3N4 nanowires or nanorods. As metallic iron powder was used, α-Si3N4 was mainly formed at 250°C.
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Document Type: Research Article
Affiliations: Key Laboratory of Colloid and Interface Chemistry (Shandong University), Ministry of Education, Jinan 250100, China
Publication date: May 1, 2008