基于Mn-MOF制备的竹节结构Mn2O3及其电化学性能  

Study on Bamboo-like Structure Mn2O3 Prepared by Mn-MOF and Its Electrochemical Properties

作　　者：张小磊 张娜 徐晨 王航 甘传先 ZHANG Xiaolei;ZHANG Na;XU Chen;WANG Hang;GAN Chuanxian(School of Materials Science and Engineering,Shanghai Institute of Technology,Shanghai 201418,China)

机构地区：[1]上海应用技术大学材料科学与工程学院

出　　处：《应用技术学报》2019年第2期125-129,共5页Journal of Technology

基　　金：国家自然科学基金(21707093,51472162,51672177,21503081);上海市联盟计划项目(LM201841,LM201843)资助

摘　　要：通过简单的溶剂热法制备出Mn-MOF前驱体,然后以Mn-MOF前驱体为模板,在空气环境中,450℃温度下煅烧,得到Mn2O3。采用XRD、TG、SEM、CV、GCD等表征手段对所得样品进行结构表征以及性能测试。结果表明,制备的Mn-MOF为棒状结构,棒状Mn-MOF经煅烧后得到竹节结构Mn2O3。该种竹节结构Mn2O3具有良好的电化学性能,在0.5mol/LNa2SO4水溶液电解液中,电流密度为0.5A/g时,比电容为149F/g。此类新型竹节结构Mn2O3的开发为Mn2O3材料在超级电容器领域的应用开辟新的方向。The Mn-MOF precursor was prepared by a facile solvothermal method,and then,the Mn-MOF precursor was used as a template and calcined at 450℃in an air atmosphere to obtain Mn2O3.The obtained samples were characterized by XRD,TG,SEM,CV and GCD.The results showed that the obtained Mn-MOF was a rod-like structure,and the obtained Mn2O3 was a bamboo-like structure after calcined.This bamboo-like structure Mn2O3 demonstrated an excellent electrochemical performance,the specific capacitance was 149.00 F/g when the current density was 0.50 A/g in a 0.5 mol/L Na 2SO 4 aqueous solution.The development of this new bamboo-like structure Mn2O3 opened up a new direction for the application of Mn2O3 materials in the field of supercapacitors.

关 键 词：锰金属有机框架结构材料 MN2O3 竹节结构 比电容 超级电容器 

分 类 号：O646.16[理学—物理化学]