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首页> 外文期刊>New Journal of Chemistry >Hollow nano silicon prepared by a controlled template direction and magnesiothermic reduction reaction as anode for lithium ion batteries
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Hollow nano silicon prepared by a controlled template direction and magnesiothermic reduction reaction as anode for lithium ion batteries

机译:通过控制模板方向和镁热还原反应制备的空心纳米硅作为锂离子电池的负极

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摘要

In this work, nanostructured, hollow Si has been prepared by a combined template direction and magnesiothermic reduction reaction. Fe2O3 nanorings are used as templates to synthesize hollow SiO2 nanorings, the precursor for hollow Si. After carbon coating by chemical vapor deposition, the hollow Si-C composite shows high capacity and stable cycling due to its unique hollow structure and nanoscale size that endow Si-C with enhanced electrode kinetics. This work provides a controllable method to synthesize hollow nano Si and Si-C nanocomposites as high-performance anodes for Li-ion batteries.
机译:在这项工作中,通过结合模板方向和氧化镁热还原反应制备了纳米结构的空心硅。 Fe2O3纳米环用作模板来合成空心SiO2纳米环,即空心Si的前体。在通过化学气相沉积进行碳涂覆之后,中空的Si-C复合材料由于其独特的中空结构和纳米级尺寸而赋予Si-C增强的电极动力学性能,从而显示出高容量和稳定的循环。这项工作提供了一种可控的方法来合成空心纳米Si和Si-C纳米复合材料,作为锂离子电池的高性能阳极。

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