Enhanced multiple anchoring and catalytic conversion of polysulfides by SnO2-decorated MoS2 hollow microspheres for high-performance lithium-sulfur batteries

Facile Fabrication of an SnSx‐SnO2‐Decorated Cobalt Sulfide Film as an Effective Counter Electrode for Dye‐Sensitized Solar Cells

“…Therefore, CoS x film is further modified by SnS x -SnO 2 nanomaterials, which is beneficial for enhancing chemical stability. [18][19][20] SnS x -SnO 2 nanomaterials are formed via coating SnCl 2 • 2H 2 O precursor solution on CoS x film, followed by annealing at 483 K for 1 hour. [20] Meanwhile, the bare CoS x film undergoes the same annealing process as a control sample for comparing the effect of heat treatment.…”

“…In our experiments, it is found that CoS x film can be degraded naturally in high‐humidity conditions. Therefore, CoS x film is further modified by SnS x ‐SnO 2 nanomaterials, which is beneficial for enhancing chemical stability [18–20] . SnS x ‐SnO 2 nanomaterials are formed via coating SnCl 2 ⋅ 2H 2 O precursor solution on CoS x film, followed by annealing at 483 K for 1 hour [20] .…”

Understanding the Catalytic Kinetics of Polysulfide Redox Reactions on Transition Metal Compounds in Li–S Batteries

“…They present valuable characteristics including slowing down the loss of polysulfides and improving the utilization of sulfur . Since the polar bonds between metal cations and oxygen anions can provide adequate polar active sites to anchor polysulfides, numerous metal oxides with low prices have been applied in Li–S batteries. − Table shows the electrochemical performance of metal oxides as a sulfur host/separator modifier in Li–S batteries.…”

Synergistic design of a semi-hollow core–shell structure and a metal–organic framework-derived Co/Zn selenide coated with MXene for high-performance lithium–sulfur batteries

“…To overcome these challenges, researchers have focused on developing sulfur-based cathode composites, particularly hollow nanostructured hosts that can mitigate the volume changes of sulfur during battery cycling while acting as nanoscale electrochemical reactors that provide space constraints for LiPSs. [10][11][12][13] In order to further improve the adsorption capacity of the host material towards LiPSs and reaction kinetics, polar materials such as metal oxides [14][15][16] and metal sulfides [17][18][19] can be combined with hollow structures as sulfur hosts. However, the conductivity of these materials is restricted, which can affect the rate performance and longterm cycling stability of the battery.…”