Growth of nickel silicate nanoplates on reduced graphene oxide as layered nanocomposites for highly reversible lithium storage

被引：51

作者：

Wang, Qian-Qian ^{[1
]}

Qu, Jin ^{[1
]}

Liu, Yuan ^{[1
]}

Gui, Chen-Xi ^{[1
]}

Hao, Shu-Meng ^{[1
]}

Yu, Yunhua ^{[1
]}

Yu, Zhong-Zhen ^{[1
]}

机构：

[1] Beijing Univ Chem Technol, Coll Mat Sci & Engn, State Key Lab Organ Inorgan Composites, Beijing 100029, Peoples R China

来源：

NANOSCALE | 2015年 / 7卷 / 40期

基金：

中国国家自然科学基金;

关键词：

PERFORMANCE ANODE MATERIAL; ELECTROCHEMICAL PROPERTIES; CARBON NANOFIBERS; TIN-NANOPARTICLES; BATTERY; ADSORPTION; NANOSHEETS; COMPOSITE; CAPACITY; NANOSTRUCTURES;

D O I：

10.1039/c5nr05719a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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.

引用

页码：16805 / 16811

页数：7

共 75 条

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