Vanadium niobium carbide (VNbCT _<i>x</i> ) bimetallic MXene derived V ₅ S ₈ –Nb ₂ O ₅ @MXene heterostructures for efficiently boosting the adsorption and catalytic performance of lithium polysulfide

Abstract

@MX heterostructure exhibits a higher binding energy of 5.34 eV and a lower decomposition barrier energy of 0.68 eV, presenting potential advantages in accelerating the conversion reactions of LiPSs. Our research offers a straightforward approach for designing metal oxide-sulfide heterostructured catalysts that deliver superior performance and enhance the electrocatalytic conversion of LiPSs, clearing the path for high performance Li-S batteries.