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新型刺猬状钴酸铜电极材料的电化学性能研究

发表时间:2016-06-30  浏览量:2978  下载量:1090
全部作者: 廖丽军,潘宜爽,彭璇,邹儒佳,胡俊青
作者单位: 东华大学材料科学与工程学院
摘 要: 通过简单的水热法并后续退火制备出生长在泡沫Ni上的刺猬状钴酸铜,通过X射线衍射(X-ray diffraction,XRD)、场发射扫描电子显微镜(field emission scanning electron microscopy,FESEM)、透射电子显微镜(transmission electron microscopy,TEM)等对样品进行分析,并将生长在泡沫Ni上的钴酸铜电极材料制备成电极进行电化学性能测试,并进行循环伏安、恒流充放电、循环稳定性测试。结果表明,刺猬状的钴酸铜电极材料具有良好的电化学储能特性。电流密度为3 mA/cm2时,其比电容可达到0.907 F/cm2,经过800圈的循环,其电化学稳定性高达90.5%. 这些超高的电化学性能结果表明,所合成的材料是理想的能量存储电极材料。
关 键 词: 无机非金属材料;钴酸铜;刺猬状;电化学性能
Title: Electrochemical performance of the new type of CuCo2O4 supercapacitor electrode material
Author: LIAO Lijun, PAN Yishuang, PENG Xuan, ZOU Rujia, HU Junqing
Organization: College of Materials Science and Engineering, Donghua University
Abstract: In this paper, the hedgehog like CuCo2O4 was synthesized on Ni foam using a simple hydrothermal method approach, followed by a post-annealing treatment. X-ray diffraction (XRD) analysis, field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM) were used to analyze the samples, and the electrochemical properties of CuCo2O4 electrodes were studied by cyclic voltammetry, constant current charge discharge and the long-term cyclic stability. The results show that the CuCo2O4 electrode material has good electrochemical energy storage properties. Most of all, at the current density of 3 mA/cm2 , the capacity can reach 0.907 F/cm2, and after 800 circles, a long term cyclic stability of 90.5% capacitance retention. The electrochemical energy storage of these results indicated that the prepared material is an ideal electrode material for energy storage device.
Key words: inorganic nonmetallic materials; CuCo2O4; hedgehog like; electrochemical performance
发表期数: 2016年6月第12期
引用格式: 廖丽军,潘宜爽,彭璇,等. 新型刺猬状钴酸铜电极材料的电化学性能研究[J]. 中国科技论文在线精品论文,2016,9(12):1206-1211.
 
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