Bimetallic selenide Cu₄Mo₆Se₈ nanosheet arrays grown on a carbon skeleton via MOF-derived with enhanced electrochemical kinetics for high-performance sodium-ion batteries

Abstract

Due to the high conductivity and theoretical capacity, transition metal selenides have drawn significant attention as the promising electrode materials for sodium-ion batteries (SIBs). However, limited cycle life and inferior...

Rationally designed carbon-encapsulated manganese selenide composites from metal–organic frameworks for stable aqueous Zn–Mn batteries

“…2b and c, the surface of C@MnSe@GO-2 particles appears rough, with the formation of smaller particles (with an average size of about 139.46 nm), which is similar to previous reports on gas-phase selenization reactions. 44 Additionally, in Fig. 2c, it is evident that GO sheets are inserted into the interior of C@MnSe@GO-2 particles, confirming the successful construction of a GO conductive network that facilitates the rapid migration of ions through the GO network into the composite material.…”

Interface construction of CuCoSe@NiS based on an ultrathin nanosheet for high-performance supercapacitors

“…It can be seen that by taking advantage of the structure of bimetallic MOF, the phenomenon of metal selenides being prone to agglomeration can be effectively avoided, while increasing the specic surface area and facilitating the enhancement of the electron/ion transport rate. [22][23][24] In addition, the seamless integration of the structural characteristics of MOF materials and the preparation of metal sulde coatings on the surface of MOFs by simple electrodeposition are considered to be a promising way to improve their electrochemical performance. On the one hand, due to the synergistic effect between different components, the redox activity of the material is improved, resulting in the superior performance of bimetallic selenides in SCs in the presence of metal sulde coatings.…”

Efficient sulfur atom-doped three-dimensional porous MXene-assisted sodium ion batteries

“…To further quantitatively distinguish the contribution of the non-diffusive part to the overall current at a specific scan rate, eqn (3) is employed: 45 i = k 1 v + k 2 v 1/2 …”