Sol-Gel Engineered MXene/Fe₃O₄ as an Efficient Mediator to Suppress Polysulfide Shuttling and Accelerate Redox Kinetics.

ABSTRACT: Lithium-sulfur (Li-S) batteries are renowned for their high theoretical energy density and low cost, yet their practical implementation is hampered by the polysulfide shuttle effect and sluggish redox kinetics. Herein, a sol-gel strategy is proposed to engineer a multifunctional MXene/Fe₃O₄ composite as an efficient mediator for the cathode interlayer. The synthesized composite features Fe₃O₄ nanospheres uniformly anchored on the highly conductive Ti₃C₂T_x MXene lamellae, forming a unique 0D/2D conductive network. This structure not only provides abundant polar sites for strong chemical adsorption of polysulfides but also significantly enhances charge transfer, thereby accelerating the conversion kinetics. As a res

SUBMITTER: Shan Z 

PROVIDER: S-EPMC12732716 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature