High-Entropy Spinel Oxide Catalyst

Accelerated polysulfide conversion

Tailoring octahedral coordination chemistry enhances Co–O bond polarity to accelerate reversible polysulfide conversion for improved lithium-sulfur batteries.

Zhihao, Liu · Chen, An · Zhang, Guikai · Yu, Peng · Di, Wang · Zhang, Lirong · Kehao, Tao · Han, Fengfeng · Wei, He · Jin, Qi · Zhang, Chi · Ma, Xinzhi · Xinyue, Wang · Tong, Qi · Zizheng, Li · Bai, Jinlong · Li, Lu · Zhang, Zhiguo · Dong, Juncai · Li, Jinjin · Zhang, Xitian · Wu, Lili

Advanced Functional Materials 2025

Advantages

XAFS experiments and theoretical analyses reveal geometric configuration and electronic structural evolution of HEO catalysts

Octahedral site recognized as primary active center

Weakened covalency (strengthened polarity) of CoOct–O bonds in HEOs enhances redox kinetics of reversible polysulfide conversion