A MoS2@SnS heterostructure for sodium-ion storage with enhanced kinetics

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

13 Scopus Citations
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Author(s)

  • Yemao Lin
  • Xiaodong Guo
  • Mingjun Hu
  • Bin Liu
  • Yucheng Dong
  • And 3 others
  • Xin Wang
  • Neng Li
  • Hong-En Wang

Detail(s)

Original languageEnglish
Pages (from-to)14689-14698
Journal / PublicationNanoscale
Volume12
Issue number27
Online published19 Jun 2020
Publication statusPublished - 21 Jul 2020

Abstract

Layered metal sulphides are promising anode materials for sodium-ion batteries (SIBs) and capacitors owing to their distinctive crystal structures and large interlayer spacings, which are suitable for Nainsertion/extraction. However, low electronic conductivity, sluggish ion transfer and large volume variation of metal sulphides during sodiation/desodiation processes have hindered their practical application. In this work, we report the construction of a walnut-like core-shell MoS2@SnS heterostructure composite as an anode for SIBs with high capacity, remarkable rate and superior cycling stability. Experimental observations and first-principles density functional theory (DFT) calculations reveal that the enhanced electrochemical performances can be mainly ascribed to the boosted charge transfer and ion diffusion capabilities at the heterostructure interface driven by a self-building internal electric field. Our findings herein may pave the way for the development of novel heterostructure composite materials for beyond lithium-ion batteries and capacitors.

Research Area(s)

Citation Format(s)

A MoS2@SnS heterostructure for sodium-ion storage with enhanced kinetics. / Lin, Yemao; Guo, Xiaodong; Hu, Mingjun; Liu, Bin; Dong, Yucheng; Wang, Xin; Li, Neng; Wang, Hong-En.

In: Nanoscale, Vol. 12, No. 27, 21.07.2020, p. 14689-14698.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review