多孔硅空心纳米球表面的聚吡咯结合用于锂离子电池阳极的高结构稳定性。
Surface binding of polypyrrole on porous silicon hollow nanospheres for Li-ion battery anodes with high structure stability.
机构信息
School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.
出版信息
Adv Mater. 2014 Sep 17;26(35):6145-50. doi: 10.1002/adma.201401937. Epub 2014 Jul 22.
PMID:25047876
Abstract
Uniform porous silicon hollow nano-spheres are prepared without any sacrificial templates through a magnesio-thermic reduction of mesoporous silica hollow nanospheres and surface modified by the following in situ chemical polymerization of polypyrrole. The porous hollow structure and polypyrrole coating contribute significantly to the excellent structure stability and high electrochemical performance of the nanocomposite.
摘要
通过介孔硅空心纳米球的镁热还原，无需任何牺牲模板，制备出了具有均匀多孔结构的硅空心纳米球，并通过聚吡咯的原位化学聚合对其进行了表面修饰。多孔空心结构和聚吡咯包覆显著提高了纳米复合材料的结构稳定性和电化学性能。
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