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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >A simple thermal decomposition-nitridation route to nanocrystalline boron nitride (BN) from a single N and B source precursor
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A simple thermal decomposition-nitridation route to nanocrystalline boron nitride (BN) from a single N and B source precursor

机译：从单个N和B源前体到纳米晶氮化硼（BN）的简单热分解-氮化路线

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摘要

Nanocrystalline boron nitride (BN) was synthesized via a simple thermal decomposition-nitridation route by the reaction of hydrated ammonium tetraborate (NH4HB4O73H2O) and metallic magnesium powders in an autoclave at 650 °C. The crystal phase, morphology, grain size, and chemical composition of the as-prepared products were characterized in detail by X-ray powder diffraction (XRD), energy dispersion spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), field-emission scanning electron microscopy (SEM), transmission electron microscopy (TEM), and high-resolution transmission electron microscopy (HRTEM). The products were also studied by FT-IR and the thermogravimetric analysis (TGA). Results revealed that the as-synthesized nanocrystalline were h-BN, and they had diameters within 100 nm. They had good thermal stability and oxidation resistance in high temperature.
机译：通过水合四硼酸铵（NH4HB4O73H2O）与金属镁粉在高压釜中于650°C的反应，通过简单的热分解-氮化路线合成纳米晶氮化硼（BN）。通过X射线粉末衍射（XRD），能量色散光谱（EDS），X射线光电子能谱（XPS），现场磁场等对制得产品的晶相，形态，晶粒尺寸和化学组成进行了详细表征发射扫描电子显微镜（SEM），透射电子显微镜（TEM）和高分辨率透射电子显微镜（HRTEM）。还通过FT-IR和热重分析（TGA）对产品进行了研究。结果表明，合成后的纳米晶体为h-BN，直径在100 nm以内。它们在高温下具有良好的热稳定性和抗氧化性。

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