Nanocomposite of Mo2N Quantum Dots@MoO3@Nitrogen-Doped Carbon as a High-Performance Anode for Lithium-Ion Batteries

Cheng Zheng, Ningjing Luo, Shuping Huang, Weixin Wu, Haitao Huang, Mingdeng Wei

Research output: Journal article publicationJournal articleAcademic researchpeer-review

16 Citations (Scopus)

Abstract

A superstructural nanocomposite of Mo2N quantum dots@MoO3@nitrogen-doped carbon is synthesized to overcome the disadvantages of poor cycling stability and low ionic/electronic conductivity of the MoO3 anode in lithium-ion batteries. In this novel nanocomposite, Mo2N, which is calculated to demonstrate metallic character by density functional theory, together with the nitrogen-doped carbon nanosheets provides dual enhancement in improving the structural stability and kinetics at the same time. Consequently, an optimized Mo2N quantum dots@MoO3@nitrogen-doped carbon nanocomposite exhibits outstanding electrochemical performance, including a large reversible capacity of 960 mAh g-1 at 100 mA g-1 after 100 cycles, and high rate performance as well as excellent long-term cycling stability over 700 and 500 cycles at 1 and 10 A g-1, respectively.

Original languageEnglish
Pages (from-to)10198-10206
Number of pages9
JournalACS Sustainable Chemistry and Engineering
Volume7
Issue number12
DOIs
Publication statusPublished - 17 Jun 2019

Keywords

  • density functional theory calculation
  • electrochemical performance
  • lithium-ion batteries
  • MoN quantum dots
  • MoO
  • nitrogen-doped carbon

ASJC Scopus subject areas

  • Chemistry(all)
  • Environmental Chemistry
  • Chemical Engineering(all)
  • Renewable Energy, Sustainability and the Environment

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