One-pot microwave synthesis of NiO/MnO2 composite as a high-performance electrode material for supercapacitors

被引：70
作者：
Bi, Yuhong [1 ]
Nautiyal, Amit [2 ]
Zhang, Huaiping [1 ]
Luo, Jujie [1 ]
Zhang, Xinyu [1 ]
机构：
[1] Taiyuan Univ Technol, Coll Mat Sci & Engn, Taiyuan 030024, Shanxi, Peoples R China
[2] Auburn Univ, Dept Chem Engn, Auburn, AL 36849 USA
来源：
ELECTROCHIMICA ACTA | 2018年 / 260卷
关键词：
Transition metal oxides; Nanocomposites; Microwave synthesis; Solid-state; Supercapacitors; NANOWIRE-ARRAY ELECTRODE; FACILE SYNTHESIS; NIO; CAPACITANCE;
D O I：
10.1016/j.electacta.2017.12.074
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
A facile and energy efficient microwave synthesis of NiO/MnO2 composite is presented in this study. The NiO nanoparticles (similar to 30 nm) and composite of NiO nanoparticles with nano-particle MnO2 were grown on the surface of graphite. The morphologies and electrochemical performance of NiO@graphite and NiO/MnO2@graphite composite were tested and compared. The SEM results showed that addition of MnO2 prevented the agglomeration of NiO nanoparticles. The electrochemical results of NiO/MnO2@graphite has demonstrated better performance than NiO@graphite, with higher specific capacitance of 102.78 mAh g(-1) at 1 A g(-1) and superior cycling stability with specific capacitance retention of 140% over more than 1500 cycles. The excellent electrochemical performance of NiO/MnO2@graphite makes it suitable for electrode material of supercapacitors. (c) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：952 / 958
页数：7
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