Redox-active nanostructure electrode of Mn/Ni bimetal organic frameworks anchoring on multi-walled carbon nanotubes for advanced supercapacitor

Synthesis of Porous Yolk-Shelled NiSe2–MnSe Heterojunctions for High-Cycling-Stability Asymmetric Supercapacitor Electrode Materials

“…27 The combination of an element with high activity (Ni) and an element with abundant chemical states (Mn) can improve the energy density and stability without sacrificing electrical and outstanding energy density (33.2 Wh kg −1 ) after assembly into an ASC. 31 We propose that Ni−Mn selenide heterojunctions can be used to accelerate the diffusion of electrons in the electrolyte and effectively improve the energy storage characteristics of supercapacitors. Electrochemical performance can be improved using electrode material structures with abundant active sites.…”

“…This speeds up the reaction kinetics, enhancing the multiplicative properties and cycling stability of the electrode material . The combination of an element with high activity (Ni) and an element with abundant chemical states (Mn) can improve the energy density and stability without sacrificing electrical conductivity. − Han et al prepared MNM@C with Mn/Ni bimetallic organic backbones anchored on carbon nanotubes showing excellent specific capacitance (793.6 F g –1 at 1 A g –1 ) and outstanding energy density (33.2 Wh kg –1 ) after assembly into an ASC . We propose that Ni–Mn selenide heterojunctions can be used to accelerate the diffusion of electrons in the electrolyte and effectively improve the energy storage characteristics of supercapacitors.…”

Redox molecule Alizarin red S anchored on biomass-derived porous carbon for enhanced supercapacitive performance

“…9b, when the voltage is up to 1.7 V, the CV curve shows obvious deformation in the high voltage region, indicating that the applied voltage up to 1.7 V leads to the polarization reaction of the electrode. 63 Therefore, the voltage range of 0-1.6 V is suitable for ASC devices, which is much higher than that of KGL//KGL symmetric supercapacitors (0-1 V) (Fig. S6, ESI †).…”

Metal–Organic Frameworks Constructed from Iron‐Series Elements for Supercapacitors

“…This situation was also observed from the other types of bimetallic MOFs (Figure 9). As to the other three catalogs, Mn/Co-MOFs (synthesized by Kazemi [209] and Seo [210] ) separately constructed from BDC linker and NH 2 -BDC, Mn/ Ni dual-metal MOFs from BDC linker, [211,212] Zn-doped Ni-BDC [191] and pillar-supported Ni-BDC bi-metal-based MOFs, [213] and Mo-doped Ni-MOF [214] were prepared subsequently. Except for the bimetallic MOFs, ternary metal-based MOFs have also been involved.…”