期刊
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
卷 707, 期 -, 页码 66-73出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jelechem.2013.08.021
关键词
Hexapods; Hexagonal prisms; Nanowires; NiCO2O4; Supercapacitors
资金
- National Natural Science Foundation of China [21171006]
A facile hydrothermal method and subsequent annealing approach have been successfully developed to synthesize ternary nickel cobaltite hexapods, hexagonal prisms and nanowires. The products were investigated in detail by means of XRD, FESEM, TEM, HRTEM, BET, TGA and XPS. The hexapods have six clusters, and every cluster has many typical nanorods with diameter of about 10 nm and length of 1.21.1.m. The nanowires are uniform in size, with diameters of about 10 nm. The hexagonal prisms with average size of about 120 nm have the highest BET specific surface area of 74.66 m(2) g(-1) and a pore volume of 0.1874 cm(3) g(-1), which exhibited superior specific capacitance of 663 F g(-1) at a current density of 1 A g(-1). It has impressive cycling stability with 88.4% initial capacitance retained after 5000 cycles at 4 A g(-1), revealing the excellent stability of the electrode. (C) 2013 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据