Carbon nanotubes as nanoreactors for fabrication of single-crystalline Mg3N2 nanowires.
Carbon nanotubes as nanoreactors for fabrication of single-crystalline Mg3N2 nanowires.
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DOI：
10.1021/nl060245v
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发表时间：
2006-04
期刊：
影响因子：
10.8
通讯作者：
Junqing Hu;Y. Bando;J. Zhan;C. Zhi;D. Golberg
中科院分区：
文献类型：
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作者：
Junqing Hu;Y. Bando;J. Zhan;C. Zhi;D. Golberg
由于Mg3N2在大气中水的存在下会快速分解（Mg3N2+6H2O—>3Mg(OH)2+2NH3），单晶Mg3N2纳米线的合成一直是一个挑战。在这里，我们证明了碳纳米管可以作为纳米反应器用于简单的热反应过程，从而首次制造出高质量，大产量，单晶Mg3N2纳米线。Mg3N2纳米线在其整个长度上均匀地包裹着非常薄的石墨碳管层，这有效地防止了它们的分解（即使样品被放入水中或暴露在大气中几个月）。本文首次采用透射电子显微镜（TEM）、高分辨率透射电子显微镜（TEM）和电子衍射等手段对Mg3N2纳米材料进行了系统分析。碳护套保护Mg3N2纳米线的成功制备将促进其晶体结构和性能的进一步实验研究。
Due to fast decomposition of Mg3N2 in the presence of water in the atmosphere (Mg3N2+6H2O-->3Mg(OH)2+2NH3), the synthesis of single-crystalline Mg3N2 nanowires has been a challenge. Here, we demonstrate that carbon nanotubes may serve as nanoreactors for a simple thermal reaction process resulting in the first fabrication of high-quality, large-yield, single-crystalline Mg3N2 nanowires. The Mg3N2 nanowires are homogeneously sheathed over their entire lengths with very thin graphitic carbon tubular layers, which effectively prevent their decomposition (even when the samples are put into water or exposed to atmosphere for several months). We have systematically analyzed for the first time the Mg3N2 nanomaterial by means of transmission electron microscopy (TEM), high-resolution TEM, and electron diffraction. Successful fabrication of carbon sheath protected Mg3N2 nanowires may promote further experimental studies on their crystal structures and properties.