Revisiting Intercalation‐Induced Phase Transitions in 2D Group VI Transition Metal Dichalcogenides

• DOI: 10.1002/aesr.202100027
• Publication Date: 2021-05-06T19:11:13Z
• Authors: Mengjing Wang; Shiyu Xu; Judy J. Cha
• Keywords: intercalations; transition metal dichalcogenides; TJ807-830; 2D materials; Environmental technology. Sanitary engineering; 01 natural sciences; TD1-1066; Renewable energy sources; phase transitions; 0104 chemical sciences

Intercalation of alkali metals is widely studied to introduce a structural phase transition from 2H 1T′ in 2D group VI metal dichalcogenides (TMDCs). This highly efficient method has enabled an access library phases with novel physical and chemical properties attractive for functional devices electrochemical catalysis. However, despite numerous studies that have predicted charge doping mainly contributes the intercalation process, mechanistic understanding at atomic level not been fully revealed. Furthermore, coupled effects strain other intrinsic or extrinsic factors on intercalation‐induced quantitatively determined. Herein, progress briefly overviewed knowledge gaps current TMDCs are highlighted. To gain microscopic picture transition, situ multimodal probes monitor real‐time structure−property relationship during suggested. The proposed research directions further direct material scientists efficiently engineer pathways materials explore phases.