A comparative study of potentiostatic and potentiodynamic method in the synthesis of MnO2 films for electrochemical capacitors

doi:10.4028/www.scientific.net/AMR.239-242.501

	A comparative study of potentiostatic and potentiodynamic method in the synthesis of MnO2 films for electrochemical capacitors
	Kong, Ling-Bin 1,2; Bai, Rui-Juan 1; Luo, Yong-Chun 2; Kang, Long 2
	2011
关键词	Electrodeposition Manganese dioxide Electrochemical capacitors Pseudocapacitive behavior
卷号	239-242
DOI	10.4028/www.scientific.net/AMR.239-242.501
页码	501-+
英文摘要	Nanostructured c-manganese dioxide films are deposited directly on three-dimensional nickel foam (NF) from 0.25 M Mn(CH3COO)(2) by means of the potentiostatic method (PSM) and potentiodynamic method (PDM). The prepared MnO2 films are characterized by X-ray diffraction and scanning electron microscopy. The electrochemical properties of MnO2 films are investigated by cyclic voltammetry (CV), charge-discharge tests, and alternating current (AC) impedance spectroscopy. The results show that the PSM-MnO2 films exhibit higher specific capacitance and better high-rate discharge ability, which are more promising for applications in supercapacitor than PDM-MnO2 films. The specific capacitance of PSM-MnO2 films is about 664 F g(-1) at 5.5 A g(-1), which is higher than many reported values.
会议录	ADVANCED MATERIALS, PTS 1-4
会议录出版者	TRANS TECH PUBLICATIONS LTD
会议录出版地	KREUZSTRASSE 10, 8635 DURNTEN-ZURICH, SWITZERLAND
语种	英语
资助项目	National Natural Science Foundation of China[50602020] ; National Basic Research Program of China[2007CB216408] ; Program for Outstanding Young Teachers in Lanzhou University of Technology[Q200803]
WOS研究方向	Engineering ; Materials Science
WOS记录号	WOS:000304284000103
内容类型	会议论文
源URL	[http://119.78.100.223/handle/2XXMBERH/37343]
专题	材料科学与工程学院省部共建有色金属先进加工与再利用国家重点实验室
通讯作者	Kong, Ling-Bin
作者单位	1.Lanzhou Univ Technol, State Key Lab Gansu Adv Nonferrous Met Mat, Lanzhou 730050, Peoples R China 2.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Kong, Ling-Bin,Bai, Rui-Juan,Luo, Yong-Chun,et al. A comparative study of potentiostatic and potentiodynamic method in the synthesis of MnO2 films for electrochemical capacitors[C]. 见:.