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Surface Binding of Polypyrrole on Porous Silicon Hollow Nanospheres for Li‐Ion Battery Anodes with High Structure Stability
Author(s) -
Du FeiHu,
Li Bo,
Fu Wei,
Xiong YiJun,
Wang KaiXue,
Chen JieSheng
Publication year - 2014
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201401937
Subject(s) - materials science , polypyrrole , anode , porous silicon , porosity , battery (electricity) , chemical engineering , ion , silicon , nanotechnology , surface (topology) , composite material , optoelectronics , electrode , polymer , chemistry , organic chemistry , polymerization , power (physics) , engineering , physics , geometry , quantum mechanics , mathematics
Uniform porous silicon hollow nanospheres are prepared without any sacrificial templates through a magnesiothermic 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.