Controllable fabrication of vanadium selenium nanosheets for a high-performance Na-ion battery anode.
Lin LiuShitan XuFang TangMeng WuWenjing YangChen XuXianhong RuiPublished in: Chemical communications (Cambridge, England) (2023)
Vanadium selenium has gained attention as a potential anode for sodium-ion batteries (SIBs) due to the tunable crystal structure, effective channels for Na + diffusion, and high theoretical specific capacity. However, the pursuit of vanadium selenium remains an enormous challenge. Herein, we demonstrated that V 2 Se 9 nanosheets could be fabricated facilely and efficiently via a one-pot synthesis method with the careful selection of the solvent/surfactant. The V 2 Se 9 anode have demonstrated excellent electrochemical performance for SIBs. An intercalation and conversion mechanism of Na-storage in V 2 Se 9 were clarified by ex situ X-ray diffraction. This work develops an effective strategy to fabricate transition metal chalcogenides for high-performance sodium storage.
Keyphrases
- ion batteries
- transition metal
- crystal structure
- reduced graphene oxide
- ionic liquid
- gold nanoparticles
- quantum dots
- working memory
- high resolution
- magnetic resonance imaging
- computed tomography
- electron microscopy
- molecularly imprinted
- risk assessment
- mass spectrometry
- visible light
- energy transfer
- simultaneous determination