When Al3+ meets CuCo2O4 nanowire arrays: An enhanced positive electrode for energy storage devices

In Situ Construction of Binder-Free Stable Battery-Type Copper Cobaltite and Copper Oxide Composite Electrodes for All-Solid-State Asymmetric Supercapacitors: Cation Concentration and Morphology-Dependent Electrochemical Performance

“…in the figure) have appeared at 941.9 and 961.9 eV are spin−orbit features of the Cu 2+ state of CCO/ NF-IPA and CCO/NF-DIW, respectively. 7,30 Figure 5d illustrates the comparison of Co 2p spectra and the asymmetric spectra of three major regions of peaks, i.e., Co 3+ , Co 2+ , and satellite peaks. The decomposed spin−orbit splitting of Co 2p 3/2 and Co 2p 1/2 states is located at 779.6/779.6 (Co1) eV and 794.6/794.5 (Co3) for Co 3+ of CCO/NF-IPA and CCO/ NF-DIW, respectively.…”

“…The respective doublets for Co 2+ were placed at 780.9/780.9 eV (Co2) and 796.3/796.3 eV (Co4) for the two composites and an energy difference of nearly 15 eV between these doublets was estimated in the two composites for the two states (Co 3+ and Co 2+ of Co), which corroborates the reports. 10,38 A pair of satellite peaks arose at 789.48 and 804.7 eV of the two composites because of the spinel structure of Co. 30 Therefore, Co has mixed states, +2 and +3, in the two composites. 3.1.…”

“…To date, various CuCo 2 O 4 nano-/microstructures have been reported with various physicochemical and electrochemical parameters. , However, the proposed materials have some limitations for practical applications . To overcome these difficulties, few effective strategies are employed to improve the performance of BTM electrodes by designing novel morphologies, incorporations or doping with other metals or metal oxides, construction of heterostructures, hybridizations with high-surface-area conductive carriers, and defect/vacancy engineering . In the backdrop of morphology, mesoporous microspheres have recently been investigated as viable and appealing electrode materials’ morphology due to their large specific surface area and stable pore-size distribution.…”

Advances in copper cobaltate-based nanomaterial electrodes for supercapacitor applications

“…This work provided a potential strategy to tune the redox behavior of these materials for energy storage. 241 Vadiyar et al successfully synthesized highly porous silver dendrites on carbon nanotube wrapped CuCo 2 O 4 nanoflowers (Fig. 12j) via a two-step chemical method and investigated their supercapacitor application.…”

Defect levels coupled with oscillations and frustrated spins by Fe+3 in co-precipitated Aluminum ferrites

“…They have technological applications in electromagnetic devices [1]. Aldoped Ni Cu and Mn ferrites have been used for supercapacitors as electrode material [2][3][4]. Al 3+ dopped CuCo 2 O 4 nanowire arrays also act as an enhanced positive electrode for energy storage devices [5] They have also been reported to enhance photocatalytic behavior [6] The interconnection of cluster created macropores allow the transport of the electrolyte creating a large surface area for redox reactions [7] For high performances, the magnetic particles should be spherical, having smooth surfaces and narrow size distribution, large surface area, and high magnetic saturation.…”