Na<sub>3</sub>V<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub> Revisited: A High-Resolution Solid-State NMR Study
Yuxin Liao, Chao Li, Fushan Geng, Ming Shen, Bingwen Hu
Abstract
The microscopic chemical environment of Na in Na3V2(PO4)3 was observed and analyzed using solid-state nuclear magnetic resonance. The results demonstrated that Na in the two chemical environments in Na3V2(PO4)3 corresponded to the signal peaks between 80 and 16 ppm in the 23Na NMR spectrum. The peak at around −11 ppm was assigned to impurities, possibly containing sodium carbonate. On basis of the new assignment, the 23Na spectra of Na3V2(PO4)3 under different charging and discharging conditions were investigated and well explained.
Topics & Concepts
High resolutionAnalytical Chemistry (journal)ImpuritySolid-state nuclear magnetic resonanceSolid-stateChemical shiftSpectral lineNMR spectra databaseChemistryNuclear magnetic resonanceResolution (logic)Materials scienceSodiumPhysical chemistryPhysicsChromatographyComputer scienceGeologyAstronomyOrganic chemistryRemote sensingArtificial intelligenceAdvancements in Battery MaterialsAdvanced Battery Materials and TechnologiesAdvanced NMR Techniques and Applications