Cu2O nanosheets decorated CuMnO2 nanosphere electrodeposited on Cu foil as high-performance supercapacitor electrode

Polygonal CuS Nanoprisms Fabricated by Grinding Reaction for Advanced Quasi-Solid-State Asymmetry Supercapacitors

“…It is comparable to numerous Cu-based negative electrode supercapacitor materials that have been seen in the literature (Table S2). ,− The redox peaks (Figure b) and plateaus (Figure d) of CuS from a low potential to a high voltage are generally attributed to the electrochemical reactions of copper, Cu 2+ /Cu + (−0.5 V/–0.7 V), and Cu 3+ /Cu 2+ (−0.2 V/–0.4 V), respectively, which have been reported in our previous work . The faradaic reactions in the alkaline electrolyte can be described by the following: , …”

High performance asymmetric supercapacitors based on Ti3C2Tx MXene and electrodeposited spinel NiCo2S4 nanostructures

“…Besides while electrodeposition Cu atoms in the Cu-foil produces highly conducting metallic arrays to build up the deepest contact with an electrode material that improves electronic conductivity which may contribute to the enhancement in electrochemical properties of CF-NCS. 25,51 The redox peak around 0.39 V and 0.18 V was observed in NF-NCS are associated with the faradaic process of Ni 2+ /Ni 3+ and Co 2+ /Co 3+ transitions with electrolytic ions. The physical structure of Ni-foam enables more diffusion of electrolyte that leads to enhanced capacitance value.…”

“…Nanostructures are directly grown on Cu-foil substrate not only provides chemical stability to PC materials but also improves rapid ion transportation during the fast redox process. [23][24][25] Several reports of decoration of PC materials on carbon-based materials have shown the improvement in the supercapacitive performance. Hierarchical 3D interconnected structure of vertical graphene nanosheets provides high surface area, remarkable thermal and electrical stability, nonagglomerated self-supporting structures and multiple conductive networks that stand as a backbone to PC materials with fast electron transport.…”

Rare earth metal oxide‐doped reduced graphene‐oxide nanocomposite as binder‐free hybrid electrode material for supercapacitor application

“…Undoubtedly, altering the properties of electrode materials and electrolytes are the two possible design parameters that can be considered to obtain improved supercapacitors with high energy density utilized for various applications. [1][2][3][4][5][6][7][8] The super-capacitors store charge with two mechanisms: the first one is the occurrence of ion adsorption/desorption at the electrode/electrolyte interface termed electrochemical double-layer capacitor (EDLC), whereas the other is called pseudo capacitors where the charge storage occurs as a result of fastfaradaic charge transport reactions. 9,10 Recently, numerous researchers studied both types of capacitors employing many kinds of materials.…”

“…At present, many scientists are focusing their research on improving the energy density of supercapacitors without losing its inherent high‐power density has been a challenging task. Undoubtedly, altering the properties of electrode materials and electrolytes are the two possible design parameters that can be considered to obtain improved supercapacitors with high energy density utilized for various applications 1‐8 . The super‐capacitors store charge with two mechanisms: the first one is the occurrence of ion adsorption/desorption at the electrode/electrolyte interface termed electrochemical double‐layer capacitor (EDLC), whereas the other is called pseudo capacitors where the charge storage occurs as a result of fast‐faradaic charge transport reactions 9,10 …”