Electron Configuration Modulation Induced Stabilized 1T-MoS 2 for Enhanced Sodium Ion Storage.
Yuxiang ZhangJiantao LiXintong LiLina ShanWenjia ZhaoJing WangQiang GaoZhao CaiCheng-Gang ZhouBo HanKhalil AmineRuimin SunPublished in: Nano letters (2024)
1T-MoS 2 has become an ideal anode for sodium-ion batteries (SIBs). However, the metastable feature of 1T-MoS 2 makes it difficult to directly synthesize under normal conditions. In addition, it easily transforms into 2H phase via restacking, resulting in inferior electrochemical performance. Herein, the electron configuration of Mo 4d orbitals is modulated and the stable 1T-MoS 2 is constructed by nickel (Ni) introduction (1T-Ni-MoS 2 ). The original electron configuration of Mo 4d orbitals is changed via the electron injection by Ni, which triggers the phase transition from 2H to 1T phase, thus improving the electrical conductivity and accelerating the redox kinetics of the material. Consequently, 1T-Ni-MoS 2 exhibits superior rate capability (266.8 mAh g -1 at 10 A g -1 ) and excellent cycle life (358.7 mAh g -1 at 1 A g -1 after 350 cycles). In addition, the assembled Na 3 V 2 (PO 4 ) 3 /C||1T-Ni-MoS 2 full cells deliver excellent electrochemical properties and show great prospects in energy storage devices.
Keyphrases
- transition metal
- reduced graphene oxide
- quantum dots
- room temperature
- gold nanoparticles
- visible light
- ion batteries
- highly efficient
- metal organic framework
- electron transfer
- solar cells
- induced apoptosis
- density functional theory
- machine learning
- wastewater treatment
- mass spectrometry
- oxidative stress
- cell death
- high resolution
- drug induced
- ultrasound guided
- simultaneous determination
- endoplasmic reticulum stress
- neural network
- molecular dynamics