A facile synthesis of MoS2/g-C3N4 composite as an anode material with improved lithium storage capacity

Ha Tran Huu, Xuan Dieu Nguyen Thi, Kim Nguyen Van, Sung Jin Kim, Vien Vo

Research output: Contribution to journalArticlepeer-review

25 Scopus citations

Abstract

The demand for well-designed nanostructured composites with enhanced electrochemical performance for lithium-ion batteries electrode materials has been emerging. In order to improve the electrochemical performance of MoS2-based anode materials, MoS2 nanosheets integrated with g-C3N4 (MoS2/g-C3N4 composite) was synthesized by a facile heating treatment from the precursors of thiourea and sodium molybdate at 550 °C under N2 gas flow. The structure and composition of MoS2/g-C3N4 were confirmed by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, infrared spectroscopy, X-ray photoelectron spectroscopy, thermogravimetric analysis and elemental analysis. The lithium storage capability of the MoS2/g-C3N4 composite was evaluated, indicating high capacity and stable cycling performance at 1 C (A·g-1) with a reversible capacity of 1204 mA·h·g-1 for 200 cycles. This result is believed the role of g-C3N4 as a supporting material to accommodate the volume change and improve charge transport for nanostructured MoS2. Additionally, the contribution of the pseudocapacitive effect was also calculated to further clarify the enhancement in Li-ion storage performance of the composite.

Original languageEnglish
Article number1730
JournalMaterials
Volume12
Issue number11
DOIs
StatePublished - 1 Jun 2019

Keywords

  • Anode materials
  • G-CN
  • Lithium-ion battery
  • MoS
  • MoS/g-CN composite

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