NEXAFS spectra of model sulfide chains: implications for sulfur networks obtained from inverse vulcanization
Sunel de Kock, Konstantin Skudler, Rukiya Matsidik, Michael Sommer, Matthias Müller, Michael Walter
Abstract
sulfur near edge X-ray absorption fine structure (NEXAFS) spectroscopy. Theoretical predictions of NEXAFS spectra for model molecules containing strands with up to three sulfur atoms are verified by experiment. The near perfect agreement between simulation and experiment on the absolute energy scale allows for the predictions for larger chain lengths also. Inspection and interpretation of NEXAFS spectra from real battery materials on this basis reveals the appearance of single connecting sulfur atoms for very low sulfur content, and of longer strands when the sulfur fraction increases.
Topics & Concepts
SulfurXANESSulfideVulcanizationChemistrySpectral lineX-ray absorption fine structureSpectroscopyMaterials scienceNatural rubberOrganic chemistryPhysicsQuantum mechanicsAstronomyAdvanced Battery Materials and TechnologiesAdvancements in Battery MaterialsThermal Expansion and Ionic Conductivity