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Effects of Tin on the Morphological and Electrochemical Properties of Arc-Discharge Nanomaterials
JOM ( IF 2.1 ) Pub Date : 2021-01-19 , DOI: 10.1007/s11837-020-04556-z
Alexey V. Zaikovskii , Anna A. Iurchenkova , Dmitriy V. Kozlachkov , Ekaterina O. Fedorovskaya

Electric arc synthesis enables the fabrication of materials in the form of metal nanoparticles packed into a carbon matrix, which separates the nanoparticles, preventing them from contacting each other, merging, coagulating, or contacting possible reactive environments, thereby stabilizing the nanoparticles. This paper presents the results of studies of the effect of tin on the structure of a composite tin–carbon nanomaterial synthesized by the electric arc method. The concentration of tin affects both the formed carbon structure, changing it from amorphous to graphene-like, and the size of the formed tin nanoparticles. In turn, these structural features affect the electrochemical properties of the synthesized materials used as anodes in lithium-ion batteries. Increasing the tin content increased the specific capacity, but increasing the size of the tin nanoparticles and the rigidity of the carbon matrix decreased the anode material’s stability.



中文翻译:

锡对电弧放电纳米材料形态和电化学性能的影响

电弧合成使得能够制造填充到碳基质中的金属纳米颗粒形式的材料,所述碳纳米颗粒将纳米颗粒分离,防止它们彼此接触,合并,凝结或接触可能的反应环境,从而稳定纳米颗粒。本文介绍了研究锡对电弧法合成的锡碳纳米复合材料结构的影响的结果。锡的浓度会影响所形成的碳结构(将其从非晶态变为石墨烯状)以及所形成的锡纳米粒子的尺寸。这些结构特征继而影响用作锂离子电池阳极的合成材料的电化学性能。增加锡含量可提高比容量,

更新日期:2021-01-20
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