The effect of reaction temperature on the micro-nano structure and the capacitance properties of cryptomelane-type manganese oxide

doi:10.3969/j.issn.1001-9731.2015.01.011

	The effect of reaction temperature on the micro-nano structure and the capacitance properties of cryptomelane-type manganese oxide
	Ran, Fen 1,2; Liu, Ying 1; Wang, Ling-Ren 1; Liu, Mao-Cheng 1,2; Zhang, Xuan-Xuan 1; Fan, Hui-Li 1; Song, Hai-Ming 1; Shen, Kui-Wen 1; Kong, Ling-Bin 1,2; Kang, Long 1,2
刊名	Gongneng Cailiao/Journal of Functional Materials
	2015-01-15
卷号	46 期号:1 页码:01055-01060
关键词	Capacitance Cyclic voltammetry Electric discharges Electrochemical electrodes Electrodes Electrolytic capacitors Manganese Molecular sieves Nanoneedles Nanorods Nanostructures Oxides Prisms Dendritic nanostructures Electrical double-layer capacitances Electrode material Hydrothermal methods Mild hydrothermal condition Octahedral molecular sieves Reaction temperature Super capacitor
ISSN号	10019731
DOI	10.3969/j.issn.1001-9731.2015.01.011
英文摘要	In this article, the uniform cryptomelane-type manganese oxide with an octahedral molecular sieves structure was prepared under mild hydrothermal condition; the effects of hydrothermal temperature on the micro-nanostructure and supercapacitance properties of manganese dioxide were studied in detail. The structures were characterized by SEM, XRD and TEM; and the supercapacitive behaviors were investigated with cyclic voltammetry, galvanostatic charge and discharge tests. The experiment results suggested that: the prepared nanoparticles can be self-organized into dendritic nanostructures, and the nanocluster arrays are composed of nanoneedles or tetragonal prism nanorods; with the increase of reaction temprature, the crystal morphology of manganese oxide was gradually improving, and was trasformed from nanoneedles to tetragonal prism nanorods; the capacitance of MnO2 electrode was a combined contribution of electrical double-layer capacitance and pseudocapacitance, and the best specific capacitance value of MnO2 electrode was 603 F/g corresponding to the charge/discharge current density of 5 mA/cm2; with the increase of reaction temperature ranging from 100-180, the specific capacitance of manganese oxide gradually decline.
语种	中文
出版者	Journal of Functional Materials
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/113379]
专题	材料科学与工程学院
作者单位	1.School of Material Science and Engineerings, Lanzhou University of Technology, Lanzhou, China; 2.State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou, China
推荐引用方式 GB/T 7714	Ran, Fen,Liu, Ying,Wang, Ling-Ren,et al. The effect of reaction temperature on the micro-nano structure and the capacitance properties of cryptomelane-type manganese oxide[J]. Gongneng Cailiao/Journal of Functional Materials,2015,46(1):01055-01060.
APA	Ran, Fen.,Liu, Ying.,Wang, Ling-Ren.,Liu, Mao-Cheng.,Zhang, Xuan-Xuan.,...&Kang, Long.(2015).The effect of reaction temperature on the micro-nano structure and the capacitance properties of cryptomelane-type manganese oxide.Gongneng Cailiao/Journal of Functional Materials,46(1),01055-01060.
MLA	Ran, Fen,et al."The effect of reaction temperature on the micro-nano structure and the capacitance properties of cryptomelane-type manganese oxide".Gongneng Cailiao/Journal of Functional Materials 46.1(2015):01055-01060.