CTAB-templated formation of CuCo2O4/CuO nanorods and nanosheets for high-performance supercapacitor applications

Abstract

In the present work, Copper cobaltites (CuCo 2 O 4 ) were efficiently developed by the CTAB-assisted sonochemical process succeeded by calcination at 350 °C for 3 h. The differential scanning calorimetric analysis results showed that all the reactions ended at 300 °C. The Fourier transform infrared spectroscopy and X-ray diffraction results established the formation of spinel CuCo 2 O 4 /CuO. The morphological analytic results exposed that CuCo 2 O 4 possesses both the nanorods and nanoparticles structure. Furthermore, cyclic voltammetry (CV) and chronopotentiometric (CP) methods were used to evaluate the electrochemical properties of various CuCo 2 O 4 formed. It is observed that the freshly prepared CuCo 2 O 4 electrodes exhibit a very high specific capacitance of 811 Fg -1 at a scan rate of 5 mV s -1 and also demonstrates superior cycling stability retaining 91% of the initial capacitance even after 3000 continuous CV cycles. Hence, typical CuCo 2 O 4 could be considered as an important electrode material for supercapacitor applications.

Formation and Electrochemical Properties of Heterostructured Electrodes Based on Cu2O and CuCo2O4

“…As previously reported [20], the copper cobaltate synthesis method affects its physicochemical characteristics. Powdered copper cobaltate obtained from the hydrothermal synthesis method has a relatively low conductivity, specific capacitance, and electrochemical stability, while the formation of heterostructured CuCo 2 O 4 /CuO by sonochemistry using cetyltrimethylammonium bromide (CTAB) leads to an improvement in these properties compared to pure copper cobaltate [21].…”

Nanostructured CuO Thin-Film-Based Conductometric Sensors for Real-Time Tracking of Sweat Loss

“…To examine the physical properties of CuO films, agents such as cetyltrimethylammonium bromide and polyethylene glycol are generally used in synthesis solutions. , Lawsonia inermis L. (Henna, (LiL)) was used as a capping and reducing agent in this study to improve the structural and morphological properties and sweat detection response of the produced CuO films.…”