A magnetic resonance study of MoS2 fullerene-like nanoparticles

A. M. Panich, A. I. Shames, R. Rosentsveig, R. Tenne

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26 Scopus citations

Abstract

We report on the first nuclear magnetic resonance (NMR) and electron paramagnetic resonance (EPR) investigation of inorganic fullerene-like MoS 2 nanoparticles. Spectra of bulk 2H-MoS2 samples have also been measured for comparison. The similarity between the measured quadrupole coupling constants and chemical shielding anisotropy parameters for bulk and fullerene-like MoS2 reflects the nearly identical local crystalline environments of the Mo atoms in these two materials. EPR measurements show that fullerene-like MoS2 exhibits a larger density of dangling bonds carrying unpaired electrons, indicative of them having a more defective structure than the bulk sample. The latter observation explains the increase in the spin-lattice relaxation rate observed in the NMR measurements for this sample in comparison with the bulk 2H- MoS2 ones.

Original languageEnglish
Article number395301
JournalJournal of Physics Condensed Matter
Volume21
Issue number39
DOIs
StatePublished - 6 Oct 2009

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