Chem. J. Chinese Universities ›› 2024, Vol. 45 ›› Issue (9): 20240145.doi: 10.7503/cjcu20240145

• Physical Chemistry • Previous Articles     Next Articles

Ionic Liquid-assisted Hydrothermal Synthesis of 1T-MoS2 and Its Zinc Ion Storage Performance

WANG Lu()   

  1. School of Municipal and Environmental Engineering,Shenyang Urban Construction University,Shenyang 110167,China
  • Received:2024-03-26 Online:2024-09-10 Published:2024-08-13
  • Contact: WANG Lu E-mail:luluwang328@163.com
  • Supported by:
    the Top Undergraduate Courses of Liaoning Province “Introduction to Enviroment” in 2022, China(No.Liaoning Education Office〔2022〕251), the 14th Five-Year Plan Project of Education Science of Liaoning Provincial Private Education Association in 2024, China(LMX2024224);the Research Development Foundation of Shenyang Urban Construction University, China(XKJ-YB-202411)

Abstract:

A 1T-MoS2 nanosheets array with expanded interlayer spacing was synthesized on carbon cloth(CC) using an ionic liquid-assisted hydrothermal method. As a positive electrode material for zinc ion batteries, 1T-MoS2/CC exhibits a discharge specific capacity of 194.2 mA·h/g at 0.1 A/g current density, and can still maintain a capacity retention rate of 95.5% after 750 cycles at a high current density of 1 A/g. The excellent zinc ion storage capacity of 1T-MoS2/CC can be attributed to:(1) ionic liquids promote the formation of 1T phase, with a 1T-MoS2 phase content of about 78% in the nanoarray, and a high concentration of 1T phase content gives it a good charge transfer rate; (2) the insertion of ionic liquids between 1T-MoS2 layers increases the interlayer spacing to 1.06 nm, which can reduce the energy barrier during the insertion process of hydrated zinc ions; (3) the three-dimensional structure of carbon cloth can inhibit the aggregation of MoS2 nanopages and promote sufficient contact between 1T-MoS2/CC and electrolyte.

Key words: MoS2, 1T phase, Ionic liquid, Zinc ion battery, Hydrothermal synthesis

CLC Number: 

TrendMD: