title: Growth of nickel silicate nanoplates on reduced graphene oxide as layered nanocomposites for highly reversible lithium storage.
abstract: The combination of active materials with electrically conductive carbon materials and their contact efficiency are crucial for improving the electrochemical performances of active materials. Here, nickel silicate (NiSiOx) nanoplates are planted in situ on the surface of reduced graphene oxide (RGO) nanosheets to form a two dimensional face-to-face nanocomposite of NiSiOx/RGO for lithium storage. The face-to-face structure enhances the contact efficiency of NiSiOx with RGO, and thus leads to a higher reversible capacity and better rate performance of the NiSiOx/RGO nanocomposite than both carbon nanotube (CNT)@NiSiOx nanocables and NiSiOx. The layered NiSiOx/RGO nanocomposite exhibits a high reversible specific capacity of 797 mA h g(-1), which is 62% and 806% higher than those of CNT@NiSiOx nanocables and NiSiOx alone, respectively.
authors.affiliation: State Key Laboratory of Organic-Inorganic Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China. qujin@mail.buct.edu.cn yuzz@mail.buct.edu.cn.
authors.forename: Qian-Qian
authors.initials: QQ
authors.lastname: Wang
authors.forename: Jin
authors.initials: J
authors.lastname: Qu
authors.forename: Yuan
authors.initials: Y
authors.lastname: Liu
authors.forename: Chen-Xi
authors.initials: CX
authors.lastname: Gui
authors.forename: Shu-Meng
authors.initials: SM
authors.lastname: Hao
authors.forename: Yunhua
authors.initials: Y
authors.lastname: Yu
authors.forename: Zhong-Zhen
authors.initials: ZZ
authors.lastname: Yu