期刊
ELECTROCHIMICA ACTA
卷 222, 期 -, 页码 1761-1769出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2016.10.161
关键词
Porous AAO; MnO2 nanorods; binder free; symmetric supercapacitor; DC sputtering; energy storage
资金
- University Grant Commission, India [7412-32-044]
Among numerous active electrode materials, manganese oxides are promising electrodes in super-capacitors. Manganese oxides research has thus far focused on the synthesis of one-dimensional (1-D) metal oxide nanostructured materials, which can have superior electrochemical performance. Several chemical methods are used to synthesize metal oxide nanostructured which involve toxic reagents, solvents and introduction of byproducts. However, physical method offers an eco-friendly path to develop contamination free 1-D metal oxide nanostructured materials. Here, we report the fabrication of binder free supercapacitor electrode of MnO2 nanorods on Nickel (Ni) coated porous anodic aluminum oxide (AAO) by DC magnetron sputtering for first time. Ni coated porous AAO substrate act as excellent current collector, enhancing the specific capacitance of MnO2 to 649 F/g. The binder free symmetric supercapacitor device delivered a high areal capacitance (112.6 mF/cm(2)), specific capacitance (194.23 Fg(-1)), good cyclic ability (89.83%) retention in capacitance after 5000 cycles), energy density (4.2 Whkg(-1)), and power density (1.4 kWkg(-1) at 0.718 Whkg(-1)). These outstanding electrochemical performances, suggest their tremendous potential as supercapacitor electrode in energy storage application. (C) 2016 Published by Elsevier Ltd.
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