La_1-xAg_xMnO_3±δ (where x = 0.00, 0.04 and 0.08) perovskite samples were prepared by the co-precipitation method as electrode materials for supercapacitors. The characterizations of the prepared samples were performed using X-ray diffraction (XRD), high resolution transmission electron microscopic (HRTEM), dynamic light scattering (DLS), X-ray photoelectron spectroscopy (XPS), the Brunauer-Emmett-Teller (BET) surface area analysis and vibrating sample magnetometer (VSM). The structural characterizations of the prepared samples reveal that the samples are crystallized in rhombohedral perovskite crystal structure with space group R3c. The electrochemical properties were performed using cyclic voltammetry (CV), galvanostatic charge/discharge (GCD) and electrochemical impedance spectroscopy (EIS). The present results show that Ag doped LaMnO_3±δ can be used as a promising material in supercapacitor electrodes.

通过共沉淀法制备了La _1-x Ag _x MnO _3±δ（其中x = 0.00、0.04和0.08）钙钛矿样品作为超级电容器的电极材料。使用X射线衍射（XRD），高分辨率透射电子显微镜（HRTEM），动态光散射（DLS），X射线光电子能谱（XPS），Brunauer-Emmett-Teller（BET）对制备的样品进行表征）表面积分析和振动样品磁力计（VSM）。制备的样品的结构特征表明，样品在具有R 3 c空间群的菱面体钙钛矿晶体结构中结晶。。电化学性质使用循环伏安法（CV），恒电流充/放电（GCD）和电化学阻抗谱（EIS）进行。目前的结果表明，掺Ag的LaMnO _3±δ可用作超级电容器电极中的一种有前途的材料。