NiMn2O4nanosheet arrays with controlled mass loading as pseudocapacitor electrodes

doi:10.4028/www.scientific.net/KEM.727.678

CORC > 重庆绿色智能技术研究院 > 中国科学院重庆绿色智能技术研究院 > 微纳制造与系统集成研究中心

	NiMn2O4nanosheet arrays with controlled mass loading as pseudocapacitor electrodes
	Xiang, Lu 1; Shen, Jun 1; Lv, Lu-Qiang 1; Li, Xu 2; Liu, Shuang-Yi2 ; Li, Zhen-Hu2
	2017
会议日期	July 25, 2016 - July 28, 2016
会议地点	Chongqing, China
DOI	10.4028/www.scientific.net/KEM.727.678
页码	678-682
通讯作者	Shen, Jun (shenjun@cqu.edu.cn)
英文摘要	Nanostructured binary transition metal oxides are expected to possess better pseudocapacitive performance than that of mono-metal oxides. Herein, NiMn2O4nanosheet arrays are grown on the Ni foam successfully with using the facile hydrothermal method and post-annealing. The surface morphology, composition and structure of as-synthesized products are investigated by Field emission scanning electron microscope, energy-dispersive X-ray spectroscopy and X-ray diffraction. The electrochemical performance is evaluated by cyclic voltammetry and galvanostatic charge-discharge tests. The results show that the thickness of nanosheets varied from 7 nm to 25 nm with changing the reaction temperature from 40 to 220°C, the density of nanosheets are also present the increasing trend, and through which the mass loading of as-synthesized nanostructurs is controlled. The NiMn2O4electrodes fabricated at higher reactiontemperature exhibit better electrochemical performance due to the raising mass loading of active electrode materials with the temperature. Moreover, the electrodes achieved at 220°C offer a highest specific capacitance of 177.2 mF/cm2at scan rate of 2 mV/s and good cycling stability with 89 % initial capacitance retention after 5000 cycles at a current density of 10 mA/cm2in 1 M Na2SO4electrolyte. © 2017 Trans Tech Publications.
会议录	China Functional Material Technology and Industry Forum, 2016
语种	英语
ISSN号	10139826
内容类型	会议论文
源URL	[http://119.78.100.138/handle/2HOD01W0/4695]
专题	微纳制造与系统集成研究中心
作者单位	1.State Key Laboratory of Mechanical Transmission, College of Material Science and Engineering, Chongqing University, Chongqing; 400044, China; 2.Chongqing Key Laboratory of Multi-Scale Manufacturing Technology, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing; 400714, China
推荐引用方式 GB/T 7714	Xiang, Lu,Shen, Jun,Lv, Lu-Qiang,et al. NiMn2O4nanosheet arrays with controlled mass loading as pseudocapacitor electrodes[C]. 见:. Chongqing, China. July 25, 2016 - July 28, 2016.