Porous graphene-like MoS₂/carbon hierarchies for high-performance pseudocapacitive sodium storage

Abstract

Layered MoS2 has been considered as a promising anode material for sodium-ion batteries (SIBs), but which suffers from low electric/ionic conductivity as well as severe volume variation upon ion insertion/extraction,...

Synthesis of homogeneous honeycomb MoS2 as the anode material for lithium-ion batteries using chemical vapor deposition and a template method

“…Such a few layered structure, as a thin layer of a nano-electrode material, will help the electron/ion transfer in MoS 2 and provide enough space for volume change. 45,46 BET analysis reveals that the specific surface area of the MoS 2 is approximately 76.17 m 2 g À1 , which is much larger than that of commercial bulk MoS 2 . The total pore volume is calculated to be 0.224 cm 3 g À1 .…”

“…Such a few layered structure, as a thin layer of a nano-electrode material, will help the electron/ion transfer in MoS 2 and provide enough space for volume change. 45,46…”

Self‐Assembled 2D WS2 Interconnected Nanosheets: An Anode Material with Outstanding Lithium‐Storage Performance

“…The molar concentration of Li + ion (C) in the electrode material and for this system, it is around 3.12 × 10 −4 mol cm −3 . [ 34–37 ] The diffusion coefficient of WS 2 NSs is 1.3 × 10 −15 and 3.3 × 10 −15 cm 2 s −1 for before and after cycling, respectively, indicating that this material can provide faster transport channels for lithium‐ion diffusion after cycling also.…”

Thermally fabricated cobalt telluride in nitrogen-rich carbon dodecahedra as high-rate potassium and sodium ion battery anodes

“…Sodium and potassium ion-based storage technologies may be an obvious complement to lithium considering the high natural abundance of both elements in various mineral forms. [5][6][7][8][9] The major roadblock to both, however, is the signicantly worse rate and cycling performance versus LIBs. The much larger size of K + (1.38 A) and Na + (1.02 A) versus Li + (0.76 A) results in sluggish kinetics during electrochemical processes, as well as in structural damage during repeated insertion-extraction.…”