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首页> 外文期刊>Journal of Crystal Growth >Effects of Fe and Ni on the yield and morphology of the 1D SiC nanostructures prepared by chemical vapor reaction
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Effects of Fe and Ni on the yield and morphology of the 1D SiC nanostructures prepared by chemical vapor reaction

机译：Fe和Ni对化学气相反应制备一维SiC纳米结构的产率和形貌的影响

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We report the effects of Fe and Ni on the yield and morphology of the 1D SiC nanostructures prepared by chemical vapor reaction at 1300 ℃. The achieved products were characterized by field-emission scanning electron microscopy, energy-dispersive X-ray spectroscopy, transmission electron microscopy, high-resolution transmission electron microscopy and X-ray diffraction. The results indicated that the obtained 1D nanostructures were composed of high-purity β-SiC single crystals with growth along the [111] direction, The yield of the products was efficiently increased under Fe or Ni- assisted condition compared to the non-catalyst condition, 1D nanostructures with two typical uniform morphologies (nanorods, nanowires) were, respectively, obtained under Fe- and Ni- assisted conditions. We suppose that Fe and Ni nanoscale drops have played different roles in the vapor-liquid-solid (VLS) growth process, and the possible growth mechanisms were proposed and analyzed in detail.
机译：我们报道了Fe和Ni对在1300℃下通过化学气相反应制备的一维SiC纳米结构的产率和形貌的影响。所获得的产物通过场发射扫描电子显微镜，能量色散X射线光谱，透射电子显微镜，高分辨率透射电子显微镜和X射线衍射进行表征。结果表明，所获得的一维纳米结构由高纯度的β-SiC单晶组成，并沿[111]方向生长，与非催化剂条件相比，在Fe或Ni辅助条件下，产物的产率得到了有效提高。 ，分别在铁和镍辅助条件下获得了具有两种典型的均匀形态（纳米线，纳米线）的一维纳米结构。我们假设Fe和Ni纳米滴在汽液固（VLS）的生长过程中发挥了不同的作用，并提出并详细分析了可能的生长机理。

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