Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 901, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2022.163650
Keywords
Lithium-ion batteries; Anode; ZnS; Heterostructure
Categories
Funding
- National Natural Science Foundation of China [21776196, 51778397, 52102289]
- Key R&D projects of Shanxi Province [201803D421089]
- Shanxi Province Science Foundation for Youths [RD2000002002]
- Institute of New Materials and Chemical Engineering, Shanxi-Zhejiang University [2021SX-FR001]
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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.
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.
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