Ruthenium oxide-carbon-based nanofiller-reinforced conducting polymer nanocomposites and their supercapacitor applications.

In this review article, we have presented for the first time the new applications of supercapacitor technologies and working principles of the family of RuO2-carbon-based nanofiller-reinforced conducting polymer nanocomposites. Our review focuses on pseudocapacitors and symmetric and asymmetric supercapacitors. Over the last years, the supercapacitors as a new technology in energy storage systems have attracted more and more attention. They have some unique characteristics such as fast charge/discharge capability, high energy and power densities, and long stability. However, the need for economic, compatible, and easy synthesis materials for supercapacitors have led to the development of RuO2-carbon-based nanofiller-reinforced conducting polymer nanocomposites with RuO2. Therefore, the aim of this manuscript was to review RuO2-carbon-based nanofiller-reinforced conducting polymer nanocomposites with RuO2 over the last 17 years

Nanoflower-like CuO/Cu(OH)2 hybrid thin films: Synthesis and electrochemical supercapacitive properties

hybrid thin films have been synthesized by simple and inexpensive successive ionic layer adsorption and reaction (SILAR) method. Prepared CuO/Cu(OH)2 samples have been used for the structural and morphological characterization with different characterization techniques. The electrochemical supercapacitive properties of CuO/Cu(OH)2 nanoflowers were investigated by cyclic voltammetry, galvanostatic charge/discharge measurements and electrochemical impedance spectroscopy. Results showed that, CuO/Cu(OH)2 nanoflower exhibits the maximum specific capacitance of 459 F g−1 at 5 mV s−1 in 2 M KOH electrolyte. Further, EIS analysis shows lower ESR value, high power performance, excellent rate as well as frequency response of CuO/Cu(OH)2 nanoflowers. Ragone plot ascertains good power and energy densities of CuO/Cu(OH)2 nanoflowers which confirms their suitability for energy storage devices. Thus, present investigation successfully reports the applicability of easy and inexpensive SILAR method for synthesis of CuO/Cu(OH)2 nanostructure to be utilized in supercapacitors