Vanadium niobium carbide (VNbCT <sub> <i>x</i> </sub> ) bimetallic MXene derived V <sub>5</sub> S <sub>8</sub> –Nb <sub>2</sub> O <sub>5</sub> @MXene heterostructures for efficiently boosting the adsorption and catalytic performance of lithium polysulfide
Yuqing Chen, Yongjie Huang, Qing Xu, Liying Yang, Ningyi Jiang, Shougen Yin
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.
Topics & Concepts
Bimetallic stripPolysulfideMaterials scienceVanadium carbideVanadiumNiobiumCarbideCatalysisBimetalAdsorptionHeterojunctionChemical engineeringInorganic chemistryMetallurgyChemistryOrganic chemistryMetalPhysical chemistryOptoelectronicsElectrodeElectrolyteEngineeringMXene and MAX Phase MaterialsAdvanced Battery Materials and TechnologiesAdvancements in Battery Materials