Super capacitors are more powerful than batteries and have a greater energy density than regular capacitors. The study of supercapacitors has attracted the attention of researchers because of their unfathomable qualities. Nevertheless, commercially available super capacitors are confined to employing carbon-based materials as electrically active materials, which offer a substantially lower energy density than batteries, due to the inadequate performance of electroactive materials. Thus, it is still essential to build energy devices with high power and energy densities.

The shape, structure, and degree of integration of the electroactive material are important elements to improve the specific capacitance. Many 1D/2D nanostructured materials with unexpected characteristics have been created in the last ten years. Furthermore, it has been claimed that multicomponent nanostructured hybrids inherit the advantages of both nanostructures in addition to benefiting from each one's unique traits. This enhances the electrochemical performance of the electrode as a whole and helps to efficiently utilise electroactive species. Rare-earth materials attracted some attention because of the several transition modes involving the 4f shell of their ions, and lanthanide compound design and production have attracted a lot of interest.