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

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.