Guest–host interactions and their impacts on structure and performance of nano-MoS2

Abstract

Different guest species, including amorphous carbon, polyvinyl pyrrolidone (PVP), ethylene diaminetrimolybdate (EDA) derived small molecules, have been successfully intercalated into a nano-scaled MoS₂ (nano-MoS₂). These guest species bridge the MoS₂ slabs through chemical bonding and their host–guest interactions influence the structure and electrochemical performance of the nano-MoS₂. When applied in lithium (Li) and sodium (Na) ion batteries, these MoS₂ nanostructures exhibit distinguished intercalation thermodynamics and cycling performances. These findings shed light on the design of MoS₂ nanostructures and other two-dimensional layer-structured materials.