ABSTRACT
Supercapacitors have received great attention due to their unique features like environment friendliness, high power density, fast charge/discharge capability, higher cyclic stability, safety, and light weight. In addition, supercapacitors can fill up the performance gaps between batteries and traditional capacitors. Among different components in supercapacitor, electrode is considered as a key to determine the performance of the supercapacitors. Electrode active materials have been tuned to nanoscale to achieve large surface area and high conductivity for providing more electro-active sites to produce more efficient energy storage. In this regard, inorganic metal oxide-based supercapacitor electrodes have attracted attention owing to their fast faradic reaction, higher specific capacitance, low cost, and high power and energy density. Furthermore, one-dimensional and branched hetero one-dimensional nanostructures significantly enhance the electrochemical properties of the metal oxides. In this chapter, we have reviewed the electrochemical properties of various one-dimensional inorganic metal oxides for supercapacitor electrode applications.
