通过对未加添加剂的醋酸锰-乙醇体系的一种简易的水基热解过程,制备了Mn3O4多面体纳米晶体.借助X射线衍射仪(XRD)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)、傅里叶变换红外光谱法(FTIR)、拉曼光谱和X-射线光电子能谱(XPS)等对Mn3O4的结构和形貌进行了表征.提出了Mn3O4多面体纳米晶体的形成机理.循环伏安法(CV)测试结果表明,所制得的Mn3O4电极呈现良好的赝电容性能.在扫描速率为5 mV·s-1时,得到了Mn3O4的最大比电容值173 F·g-1.%Hausmannite Mn3O4 polyhedral nanocrystals have been fabricated through a simple solution-based thermolysis process in the manganese acetate-alcohol system.Structural and morphological characterizations of the as-obtained product have been carried out using XRD,FTIR,Raman spectraoscopy,XPS,SEM and TEM.The formation mechanism of polyhedral nanocrystals was proposed.The cyclic voltammetry (CV) result show that the as prepared Mn3O4 electrode exhibits a good pseudo-capacitance behavior.A maximum specic capacitance of 173 F·g-1 is obtained for the nanocrystals at a sweep rate of 5 mV·s-1.
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