Porous Fe-Mn-O nanocomposites:Synthesis and supercapacitor electrode application
Porous Fe-Mn-O nanocomposites:Synthesis and supercapacitor electrode application作者机构：School of Chemistry and Chemical Engineering Jiangsu University State Key Laboratory of Coordination Chemistry Nanjing University School of Environmental and Chemical Engineering Jiangsu University of Science and Technology
出 版 物：《Progress in Natural Science:Materials International》 (自然科学进展·国际材料(英文))
年 卷 期：2016年第26卷第3期
页 面：264-270页
核心收录：
学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学]
基 金：financial support from National Natural Science Foundation of China (Nos.51102117,51272094,51203069) Jiangsu Natural Science Foundation (No.BK2012276) Cultivating Project of Young Academic Leader from Jiangsu University
主 题：Oxide Fe-Mn-O Porous structure Capacitors Electrodes
摘 要：Transition metal oxide micro-/nanostructures demonstrate high potential applications in energy storage devices. Here, we report a facile synthesis of highly homogeneous oxide composites with porous structure via a coordination polymer precursor, which was prepared with the assistance of tartaric *** typical product, Fe-Mn-O composite was demonstrated here. The obtained Fe-Mn-O product was systemically characterized by X-ray powder diffraction, scanning electron microscopy, transmission electron microscopy, elemental mapping analysis, and X-ray photoelectron spectroscopy. It was demonstrated that the Fe-Mn-O nanocomposite shows interconnected porous structure, in which iron,manganese, and oxygen are uniformly distributed. In addition, the Fe-Mn-O nanocomposite was then fabricated as capacitor electrodes. Operating in an aqueous neutral solution, the Fe-Mn-O composite electrodes showed an wide working potential window from 0.2 to 1.0 V(vs. SCE), and a specific capacitance of 86.7 Fg-1or 0.4 Fcm-2at a constant current density of 1 Ag-1with good cycle life. This study offers a new precursor approach to prepare porous metal oxide composites, which would be applied in energy-storage/conversion devices, catalysts, sensors, and so on.
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