In Situ Growth of MOFs on the Surface of Si Nanoparticles for Highly Efficient Lithium Storage: Si@MOF Nanocomposites as Anode Materials for Lithium-Ion Batteries
In Situ Growth of MOFs on the Surface of Si Nanoparticles for Highly Efficient Lithium Storage: Si@MOF Nanocomposites as Anode Materials for Lithium-Ion Batteries
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MOF在Si纳米颗粒表面的原位生长用于高效锂存储：Si@MOF纳米复合材料作为锂离子电池负极材料
DOI：
10.1021/am5081937
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发表时间：
2015-02-04
影响因子：
9.5
通讯作者：
Wang, Bo
中科院分区：
文献类型：
--
作者：
Han, Yuzhen;Qi, Pengfei;Wang, Bo
开发了一种简单而强大的一锅策略，通过原位机械化学合成制备金属有机骨架涂覆的硅纳米颗粒。经过简单的热解，由此获得的复合材料表现出优异的电化学性能，储锂容量高达1050 mAh g(-1)，优异的循环稳定性（500次循环后容量保持率>99%）和出色的倍率性能。这些特性加上其高稳定性和易于制造，使得这种 Si@MOF 纳米复合材料成为锂离子电池高能阳极材料的理想替代候选材料。
A simple yet powerful one-pot strategy is developed to prepare metalorganic framework-coated silicon nanoparticles via in situ mechanochemical synthesis. After simple pyrolysis, the thus-obtained composite shows exceptional electrochemical properties with a lithium storage capacity up to 1050 mA h g(-1), excellent cycle stability (>99% capacity retention after 500 cycles) and outstanding rate performance. These characteristics, combined with their high stability and ease of fabrication, make such Si@MOF nanocomposites ideal alternative candidates as high-energy anode materials in lithium-ion batteries.