X-ray Characterizations of Exfoliated MoS₂ Produced by Microwave-Assisted Liquid-Phase Exfoliation.

ABSTRACT: An X-ray analysis of exfoliated MoS₂, produced by means of microwave-assisted liquid-phase exfoliation (LPE) from bulk powder in 1-methyl-2-pyrrolidone (NMP) or acetonitrile (ACN) + 1-methyl-2-pyrrolidone (NMP) solvents, has revealed distinct structural differences between the bulk powder and the microwave-exfoliated samples. Specifically, we performed X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) measurements to identify the elements of our exfoliated sample deposited on a Si substrate by drop-casting, as well as their chemical state and its structural crystalline phase. In the exfoliated sample, the peaks pattern only partially resemble the theoretical Miller indices for MoS₂. In contrast, the bulk powder's spectrum shows the characteristic peak

SUBMITTER: Vasi S 

PROVIDER: S-EPMC11355266 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature