Mn-MOF基多孔碳/氧化锰复合结构材料及其超级电容器性能研究  

Mn-MOF-Based Porous C/MnO Composite Structure and Performance of Its Corresponding Supercapacitors

作　　者：丁艳花 黄成杰 张小磊 张娜 房永征 

机构地区：[1]上海应用技术大学材料科学与工程学院,上海201418

出　　处：《应用技术学报》2017年第3期267-273,共7页Journal of Technology

基　　金：国家自然科学基金项目(51672177)资助

摘　　要：采用水热法制备了纯度较高的前驱体金属有机骨架化合物(Mn-MOF),并在不同温度下对其进行高温煅烧,得到了多孔碳/氧化锰(C/MnO)复合结构材料.运用X射线衍射仪、扫描电子显微镜对该多孔C/MnO材料进行结构表征,并通过循环伏安、恒流充放电等测试方法考察其作为电极材料的超级电容器的电化学性能.结果表明,制备的多孔C/MnO复合结构材料的比电容在800℃煅烧温度下电流密度为0.5 A·g^(-1)时达到最大,为375.0 F·g^(-1).此结果可为多孔C/MnO复合结构材料开辟新的研究方向.A precursor Mn-based metal organic framework （MOF） was synthesized by the hydrothermal method. The porous carbon/manganese oxide （C/MnO） composites were obtained by calcinating the precursor Mn-MOF at different temperatures. The composite powder was characterized by X-ray diffraction and scanning electron microscope. The electrochemical properties of the supercapacitor applying the C/MnO composite as the electrode material were investigated by cyclic voltammetry method and galvanostatic charge-discharge method. The results show that the electrochemical performance of the porous C/MnO material is the best at 800℃ calcination temperature with the charge and discharge current density of 0.5 A · g^-1 , namely the specific capacitance reaches 375.0 F · g^-1. The result opens up new research directions for the porous C/MnO with composite structures.

关 键 词：复合结构 碳/氧化锰 Mn金属有机骨架化合物 电化学性能 超级电容器 

分 类 号：TB332[一般工业技术—材料科学与工程] TM53[电气工程—电器]