Intercalation Studies of Lewis Bases into Layered Transition Metal Dichalcogenides

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dc.contributor.advisorMartin, Benjamin
dc.contributor.authorArmitage, Jacob
dc.contributor.committeeMemberBeall, Gary
dc.contributor.committeeMemberHudnall, Todd
dc.date.accessioned2016-06-13T18:55:24Z
dc.date.available2016-06-13T18:55:24Z
dc.date.issued2016-05
dc.description.abstractSolvation and exfoliation mechanics of layered transition metal dichalcogenides (TMDs) were studied. Lithium vanadium disulfide (LiVS2) is an alkali-metal intercalate of vanadium disulfide, consisting of 2-dimensional anionic VS2 sheets with interlayer Li cations. X-ray diffraction and potentiometric analysis shows Li(1-x)VS2 undergoes reversible phase changes during oxidative delithiation. An affinity for solvation of the VS2 layers was observed for 0 < x < 0.4 by a range of solvents, while LiVS2 and fully oxidized VS2 show little propensity for direct solvation over short time scales. Understanding the relationship between oxidation state and solvation of TMDs may lead to novel electrolyte formulations that inhibit degradation of electrochemical storage devices over multiple charge cycles. Directed tuning of the interlayer cation density in TMDs such as VS2 may also provide a new means of soft chemical exfoliation and generation of pristine two-dimensional crystalline materials.
dc.description.departmentChemistry and Biochemistry
dc.formatText
dc.format.extent54 pages
dc.format.medium1 file (.pdf)
dc.identifier.citationArmitage, J. (2016). Intercalation studies of Lewis bases into layered transition metal dichalcogenides (Unpublished thesis). Texas State University, San Marcos, Texas.
dc.identifier.urihttps://hdl.handle.net/10877/6047
dc.language.isoen
dc.subjectSolvation
dc.subjectDichalcogenide
dc.subjectTMD
dc.subjectLiVS2
dc.subjectLi1-xVS2
dc.titleIntercalation Studies of Lewis Bases into Layered Transition Metal Dichalcogenides
dc.typeThesis
thesis.degree.departmentChemistry and Biochemistry
thesis.degree.disciplineChemistry
thesis.degree.grantorTexas State University
thesis.degree.levelMasters
thesis.degree.nameMaster of Science

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