High-performance asymmetric supercapacitors based on core/shell cobalt oxide/carbon nanowire arrays with enhanced electrochemical energy storage

Template-free synthesis of hierarchical porous Co 3 O 4 microspheres and their application for electrochemical energy storage

“…(Fig. 4b), both Co 3 O 4 microspheres show four obvious peaks (478 cm À1 , 520 cm À1 , 614 cm À1 , 685 cm À1 ) in the range from 400 to 800 cm À1 , which are the typical features of Co 3 O 4 vibration modes [35]. Correspondingly, both Co 3 O 4 microspheres show characteristic FTIR peaks at 664 cm À1 and 562 cm À1 due to the stretching vibrations of Co-O (Fig.…”

“…A couple of redox peaks can be observed in both CV curves, indicating that the redox reaction takes place during the charge/discharge process. The involved reactions in the positive electrode (cathode) can be simply illustrated as follows [1,35].…”

High Energy Density Ternary Composite Electrode Material Based on Polyaniline (PANI), Molybdenum trioxide (MoO3) and Graphene Nanoplatelets (GNP) Prepared by Sono-Chemical Method and Their Synergistic Contributions in Superior Supercapacitive Performance

“…In spite of having all these noticeably excellent properties, researchers are still very anxious about supercapacitor as it cannot produce higher energy density than batteries, which restricts its use as the chief power source [8,9]. Thus, improvement of capacitance and functioning voltage of the supercapacitor to have enhanced energy density along with high power density is of great challenge till date, and hence, the main research spotlight must be on the formulation and fabrication of the most significant constituent of any supercapacitor, i.e., the electrode material [8,9].…”

Sr-doped Lanthanum Nickelate Nanofibers for High Energy Density Supercapacitors

“…[30] Hence, formation of a nanostructure with high specific surface area is a very important parameter for the electrode materials. [31] A larger number of nanostructure synthesis methods have been used to develop different morphologies of oxides. Among them, the electrospun technique is a simple, cost-effective method to produce inorganic nanofibers.…”