Architecture of superior hybrid electrode by the composition of Cu2O nanoflakes, novel cadmium ferrite (CdFe2O4) nanoparticles, and g-C3N4 sheets for symmetric and asymmetric supercapacitors

Effectively constructed by the interior and interface coexisting design of cobalt‐doped NiFe 2 S 4 nanosheets for high‐performance supercapacitors

“…Similarly, the Fe 2p spectra (Figure 5C) consist of two reasonable peaks at 724.8 and 709.3 eV binding energies of an accord to Fe 2p 1/2 and Fe 2p 3/2 and therefore signify the presence at Fe 2+ 20,21 . The remaining peaks at 716.4 and 712.6 eV binding energies imply the existence of Fe 3+ 19 . The Co 2p spectra could be split into four‐peakings (Figure 5D).…”

“…20,21 The remaining peaks at 716.4 and 712.6 eV binding energies imply the existence of Fe 3+ . 19 The Co 2p spectra could be split into four-peakings (Figure 5D). The peaks at 796.9 and 781.4 eV binding energies were in wellbeing correspondence with Co 2p 1/2 and Co 2p 3/2 and specify the presence of Co 2+ , while both peaks at 793.5 and 778.6 eV accord to Co 3+ .…”

“…For EDLCs, carbon electrodes including graphene display much and stabled double‐layer capacities due to their excellent long‐cycling activities and higher specific surface region 18‐21 . Nevertheless, these kinds of applications have been limited by stackings and agglomerations in higher energy densities SCs.…”

“…16,17 For EDLCs, carbon electrodes including graphene display much and stabled double-layer capacities due to their excellent long-cycling activities and higher specific surface region. [18][19][20][21] Nevertheless, these kinds of applications have been limited by stackings and agglomerations in higher energy densities SCs. On the other hand, conducting polymer-based materials and transition metals have two of the most usual utilized electrodes for PCs.…”

Chemical vapor deposited graphene-based quasi-solid-state ultrathin and flexible sodium-ion supercapacitor

“…These electronic devices require energy storage, fast charging and discharging, and high energy density. Among several energy storage devices, supercapacitors are the potential candidate owing to their advantages such as long cycle life, fast charge-discharge rates, high power performance and low maintenance cost [2][3][4][5][6][7][8][9][10][11][12]. Carbon- † Mohammed Saquib Khan and Preeti contributed equally to this work.…”