High-entropy alloy catalysts with tunable electronic configurations for enhanced sulfur reduction electrocatalysis.

ABSTRACT: The shuttle effect and sluggish redox kinetics of polysulfides pose significant challenges to the long-cycle stability of alkali metal-sulfur batteries, necessitating the development of highly efficient catalysts. High-entropy alloys (HEAs) have emerged as promising electrocatalysts for energy storage due to their unique electronic properties and high configurational entropy. Tailoring the electronic configuration of HEAs to achieve a well-positioned d-band center is a vital strategy for enhancing catalytic performance in alkali metal-sulfur batteries systems. In this study, the electronic configurations of HEAs were systematically tuned by varying the fifth metal element. Among them, NiCoFeCuMo (HEA-Mo) exhibited an optimized electronic configuration and a favorable d-band center, fully d

SUBMITTER: Shi J 

PROVIDER: S-EPMC12301893 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature