Facile preparation of transition metal oxide-metal composites with unique nanostructures and their electrochemical performance as energy storage material

被引:16
|
作者
Cheng, Kui [1 ]
Yang, Fan [1 ]
Ye, Ke [1 ]
Li, Yiju [1 ]
Yang, Sainan [1 ]
Yin, Jinling [1 ]
Wang, Guiling [1 ]
Cao, Dianxue [1 ]
机构
[1] Harbin Engn Univ, Key Lab Superlight Mat & Surface Technol, Minist Educ, Coll Mat Sci & Chem Engn, Harbin 150001, Peoples R China
关键词
SUPERCAPACITOR ELECTRODES; NANOTUBE ARRAYS; CAPACITORS; BATTERIES; GRAPHENE; PSEUDOCAPACITANCE; MORPHOLOGY; DESIGN; MNO2; FILM;
D O I
10.1039/c3ta13260a
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
In this work, a facile method for the preparation of a series of transition metal oxide-metal nanocomposites (MO-M) (such as NiO-Ni, Co3O4-Co, Fe3O4-Fe and MnO2-Mn) anchored on conductive nanowire arrays (such as TiC-C core-shell nanowires grown on a Ti alloy sheet) is reported for the first time. The obtained composites possess a unique three-dimensional nanostructure and high electronic conductivity. They have diverse applications as electrodes of energy storage devices. High capacitance and high rate capability have been demonstrated using the NiO-Ni@C@TiC nanocomposite as a model electrode, which shows a specific capacitance as high as 1845 F g(-1) at a charge-discharge current density of 5 A g(-1) and 811.1 F g(-1) after cycling 500 times at an extremely high charge-discharge rate of 100 A g(-1).
引用
收藏
页码:14246 / 14252
页数:7
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