Background: Nano perovskite-type structures as denoted by ABO₃ (A= RE) have been popular targets of fundamental investigations since they exhibit a wide variety of physical properties depending upon the chemical composition, defects and small changes in atomic arrangements.

Methods: GdAlO₃: Co²⁺ (1, 3 &9 mol %) was synthesized using the solution combustion method by using stoichiometric quantities of gadolinium nitrate [Gd (NO₃)₃], aluminium nitrate (Al (NO₃)₂, and cobalt nitrate Co(NO₃)₂.

Results: The morphology, structure and particle size of the prepared GdAlO₃: Co²⁺ sample were characterized by transmission electron microscope (TEM) image. The Fourier transform infrared (FT-IR) spectral analysis confirmed that the as-prepared powder was in pure state. Electrochemical impedance measurements (EIS) of different GdAlO₃: Co²⁺ samples were measured vs. Ag/AgCl in the frequency range of 1 Hz to 1 MHz with AC amplitude of 5 mV at steady-state which clearly indicated that Co²⁺ dopant is a successful doping material for the fabrication of supercapacitors.

Conclusion: Electrochemical impedance measurements (EIS) of different GdAlO₃: Co²⁺ samples were measured vs. Ag/AgCl in the frequency range of 1 Hz to 1 MHz with AC amplitude of 5 mV at steady-state which clearly indicated that Co²⁺ dopant is a successful doping material for the fabrication of supercapacitors. From a future perspective, we believe that GdAlO₃: Co²⁺ composite material could be a promising electrode material for the fabrication of various sensors, supercapacitors and solar cells.

背景：ABO ₃（A = RE）表示的钙钛矿型纳米结构已成为基础研究的热门目标，因为它们根据化学成分，缺陷和原子排列的微小变化表现出广泛的物理特性。

方法：使用化学计量的硝酸by [Gd（NO ₃）₃ ]，硝酸铝（Al（NO ₃）₂）和化学计量的固溶燃烧法合成GdAlO ₃：Co ²⁺（1、3＆9 mol％）。硝酸钴Co（NO ₃）₂。

结果：用透射电镜（TEM）对制备的GdAlO ₃：Co ²⁺样品的形貌，结构和粒径进行了表征。傅立叶变换红外光谱（FT-IR）证实了所制备的粉末处于纯状态。在稳定状态下，在1 Hz至1 MHz的频率范围内，AC振幅为5 mV的情况下，测量了不同GdAlO ₃：Co ²⁺样品相对于Ag / AgCl的电化学阻抗测量值（EIS），清楚地表明Co ²⁺掺杂剂是一种用于制造超级电容器的成功掺杂材料。

结论：在稳态下，在1 Hz至1 MHz的频率范围内，交流幅度为5 mV的情况下，在不同的GdAlO ₃：Co ²⁺样品中与Ag / AgCl进行了电化学阻抗测量（EIS），清楚地表明Co ^{2 +}掺杂剂是一种用于制造超级电容器的成功掺杂材料。从未来的角度来看，我们认为GdAlO ₃：Co ²⁺复合材料可能是用于制造各种传感器，超级电容器和太阳能电池的有前途的电极材料。