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Synthesis of Cu3Sn Alloy Nanocrystals through Sequential Reduction Induced by Gradual Increase of the Reaction Temperature

机译:反应温度逐渐升高顺序还原合成Cu3Sn合金纳米晶。

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Cu3Sn alloy nanocrystals are synthesized by sequential reduction of Cu and Sn precursors through a gradual increase of the reaction temperature. By transmission electron microscopy (TEM), energy-dispersive Xray spectroscopy (EDS), UV/Vis spectroscopy, and X-ray diffraction (XRD) analyses, the alloy formation mechanism of Cu3Sn nanocrystals has been studied. The incremental increase of the reaction temperature sequentially induces the reduction of Sn, the diffusion of Sn into the preformed Cu nanocrystals, resulting in the intermediate phase of Cu-Sn alloy nanocrystals, and then the formation of Cu3Sn alloy nanocrystals. We anticipate that the synthesis of Cu3Sn alloy nanocrystals encourages studies toward the synthesis of various alloy nanomaterials.
机译:通过逐渐增加反应温度顺序还原Cu和Sn前驱体,可以合成Cu3Sn合金纳米晶体。通过透射电子显微镜(TEM),能量色散X射线能谱(EDS),UV / Vis光谱和X射线衍射(XRD)分析,研究了Cu3Sn纳米晶体的合金形成机理。反应温度的逐渐升高依次引起Sn的还原,Sn扩散到预先形成的Cu纳米晶体中,从而形成Cu-Sn合金纳米晶体的中间相,然后形成Cu3Sn合金纳米晶体。我们预计,Cu3Sn合金纳米晶体的合成将鼓励人们对各种合金纳米材料的合成进行研究。

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