CoNiO₂ /Co₄ N Heterostructure Nanowires Assisted Polysulfide Reaction Kinetics for Improved Lithium-Sulfur Batteries.

ABSTRACT: The "shuttle effect" of soluble polysulfides and slow reaction kinetics hinder the practical application of Li-S batteries. Transition metal oxides are promising mediators to alleviate these problems, but the poor electrical conductivity limits their further development. Herein, the homogeneous CoNiO₂ /Co₄ N nanowires have been fabricated and employed as additive of graphene based sulfur cathode. Through optimizing the nitriding degree, the continuous heterostructure interface can be obtained, accompanied by effective adjustment of energy band structure. By combining the strong adsorptive and catalytic properties of CoNiO₂ and electrical conductivity of Co₄ N, the in situ formed CoNiO₂ /Co₄ N heterostructure reveals a synerg

SUBMITTER: Pu J 

PROVIDER: S-EPMC8811817 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature