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Ion dynamics of ethylammonium nitrate by means of Quasielastic neutron scattering
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Huq, Syed R.. Ion dynamics of ethylammonium nitrate by means of Quasielastic neutron scattering. Retrieved from https://doi.org/doi:10.7282/t3-fbnx-je88

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TitleIon dynamics of ethylammonium nitrate by means of Quasielastic neutron scattering
NameHuq, Syed R. (author); Hayes, Robert (chair); Castner, Edward (internal member); Romsted, Laurence (internal member); Rutgers University; School of Graduate Studies
Date Created2018
Other Date2018-10 (degree)
SubjectChemistry and Chemical Biology, Quasielastic neutron scattering
Extent1 online resource (73 pages) : illustrations
DescriptionIonic Liquids (ILs) are salts with a melting point below 100 ˚C. In recent years, ILs have garnered popular interest in academia and industry due to their unique properties and heterogeneous solvent nanostructure. In this Thesis, the solvent dynamics of one of the oldest, and most widely used ILs, ethylammonium nitrate (EAN) is examined using Quasi-Elastic Neutron Scattering (QENS) with H/D isotopic substitution. The data is fitted using analytical diffusions models and Bayesian statistics. The results show that long range cation motion in ILs is consistent with unrestricted (Fickian) translational diffusion. The measured cation diffusion coefficient of 3.96 × 10-11 m2/s (298 K) is comparable to other self-assembled systems and two orders of magnitude slower than for molecular liquids (e.g. water @ 292 K, D = 2.36 × 10-9 m2/s). The activation energy for all diffusion processes was independent of IL solvent within QENS instrument resolution and shown to follow Arrhenius dependence with temperature. These results demonstrate that long-range ion mobility in ILs is likely linked to revelations of long-range solvent nanostructure.
NoteM.S.
NoteIncludes bibliographical references
Noteby Syed R. Huq
Genretheses, ETD graduate
Persistent URLhttps://doi.org/doi:10.7282/t3-fbnx-je88
Languageeng
CollectionSchool of Graduate Studies Electronic Theses and Dissertations
Organization NameRutgers, The State University of New Jersey
RightsThe author owns the copyright to this work.
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