Constructing MoS2/ZnS-NC heterostructures on carbon cloth as anode with enhanced diffusion kinetics for lithium-ion batteries

Interface engineering is an effective strategy to optimize the electronic properties of MoS2, yielding significantly improved electrochemical performance of lithium-ion batteries. We have designed carbon cloth (CC) decorated by a MoS2/ZnS-NC heterostructure, where ZnS with N-doped carbon (ZnS-NC) is derived from zeolitic imidazolate framework-8 (ZIF-8) carbonation. A MoS2/ZnS-NC@CC heterostructure with abundant heterointerfaces, high conductivity, and N heteroatom doping greatly enhances electron/ion diffusion kinetics, thereby improving electrochemical performance. The MoS2/ZnS-NC@CC anode exhibits improved lithium storage capacity due to its structural advantage. Electrochemical measurements reveal that the MoS2/ZnS-NC@CC binder-free electrode delivers an initial discharge capacity of 1427.2 mAh g-1 at a current density of 100 mA g-1 and good cycling stability after 200 cycles. (c) 2022 Elsevier B.V. All rights reserved.

Automated summary

Interface engineering is an effective strategy to optimize the electronic properties of MoS2, resulting in improved electrochemical performance of lithium-ion batteries. In this study, a carbon cloth decorated with a MoS2/ZnS-NC heterostructure was designed, where ZnS with N-doped carbon (ZnS-NC) was derived from zeolitic imidazolate framework-8 (ZIF-8) carbonation. The MoS2/ZnS-NC@CC heterostructure showed abundant heterointerfaces, high conductivity, and N heteroatom doping, leading to enhanced electron/ion diffusion kinetics and improved electrochemical performance.