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Filtering by: Creator Auth, Toby D. Remove constraint Creator: Auth, Toby D. Academic Affiliation Chemistry Remove constraint Academic Affiliation: Chemistry

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  • Tuning Functional Properties of Pyrochlore and Related Oxides via Cation and Anion Substitutions

    Creator:
    Giampaoli, Gabriella C. S.
    Abstract:
    Inorganic structures play an important role in materials due to their versatility and diversity. A complete understanding of the structure of a material is vital to enhance the creation of new materials that fill voids in research. The rational design of these compounds is driven by the exploitation of structure-property...
    Resource Type:
    Dissertation
    Full Text:
    first layer. (d) A second layer, C, is added on top of the red void areas in the first layer

  • Trans-Pacific and regional atmospheric transport of anthropogenic semivolatile organic compounds in the western U.S.

    Creator:
    Primbs, Toby
    Abstract:
    The atmospheric transport of anthropogenic semivolatile organic compounds (SOCs) from Asian sources to the Western U.S. was investigated. In addition, the SOC extraction method was optimized. Hansen solubility parameter plots were used to aid in the pressurized liquid extraction (PLE) solvent selection of air sampling media in order to minimize...
    Resource Type:
    Dissertation
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    DISSERTATION OF Toby Primbs for the degree of Doctor of Philosophy in Chemistry presented on September 21

  • Tracking semi-volatile organic pollutants in remote lake systems

    Creator:
    Usenko, Sascha
    Abstract:
    SOCs volatility and persistence properties cause many SOCs to become ubiquitous in the environment as well as accumulate in areas with lower temperatures such as polar or orographic regions. Many anthropogenic SOCs pose a serious risk to human and ecosystem health because of their persistent, bioaccumulative, and toxic properties in...
    Resource Type:
    Dissertation
    Full Text:
    as Glenn, Dave, Luke, Toby, JayLene, Shawn, Mike, Ron, Carrolyn, Janette, Kasia, Robert, Blaine

  • The Role of Materials Chemistry in Designing Advanced Color Inorganic Pigments

    Creator:
    Medina, Elena A.
    Abstract:
    The results of the research presented in this work are related to synthesis and investigations of novel color inorganic pigments having various structures and shades. Inorganic pigments play a major role in contemporary life. They are used in paints, rubber, plastic, cosmetics etc. Searching for new, stable, environmentally benign and...
    Resource Type:
    Dissertation
    Full Text:
    a combination of d-d interatomic transitions of Mn5+/Cr5+ cations and transition metal–O2- charge

  • The Local Structure of Functional Electroceramics

    Creator:
    Culbertson, Charles M.
    Abstract:
    This work investigates the relationship between the local structure and physical properties of a set of classical (MgTiO3, CaTiO3, SrTiO3, and BaTiO3) and complex ((1-x)Ba(Zr0.2Ti0.8)O3-x(Ba0.7Ca0.3)TiO3[BZT-BCT], Na0.5Bi0.5TiO3 [NBT]) perovskite electroceramics. The materials in this work were synthesized via standard solid state ceramic synthesis, the structure was investigated through a number of...
    Resource Type:
    Dissertation
    Full Text:
    plates are placed in parallel (at a distance d) and a voltage is applied, charge will accumulate on the

  • Synthesis, structure and properties of some transition metal oxides

    Creator:
    Li, Jun
    Abstract:
    See pdf
    Resource Type:
    Dissertation
    Full Text:
    enriched this work. I am much indebted to Drs. B.H. Toby, C.Y. Jones and J.K. Stalick for collecting

  • Synthesis and investigation of layered oxides with honeycomb ordering

    Creator:
    Schmidt, Whitney L.
    Abstract:
    Synthesis and discovery lies at the core of every field in chemistry. The investigation of the structure-property relationships in compounds known or new is the fundamental purpose of solid state chemistry. Mixing related solid state compounds to form solid solutions can lead to exciting new and/or unexpected properties. Layered compounds...
    Resource Type:
    Dissertation
    Full Text:
    hexagonal close packing, d) ABC... stacking sequence for cubic close packing

  • Substitutional Effects on the Electromechanical Properties of Lead-free, Piezoelectric (Na₀.₅Bi₀.₅)TiO₃-BaTiO₃ (NBT-BT)

    Creator:
    McQuade, Ryan R.
    Abstract:
    This work investigates the effect of cation substitution on the properties of the lead-free, solid solution (Na₀.₅Bi₀.₅)TiO₃-BaTiO₃ (NBT-BT). Substitution into NBT-BT increases disorder and increases the relaxor ferroelectric properties. These relaxor ferroelectric materials show large piezoelectric strains that can be utilized in actuator applications. Ceramic samples were prepared using standard...
    Resource Type:
    Dissertation
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    Pb0.9125La0.0975(Zr0.65Ti0.35)0.976O3 (PLZT). a), b), c) show polarized nanodomains and d) represents a diagram

  • Substitution Effects on the Structure and Electronic Behavior of Ternary Precious Metal Oxides

    Creator:
    Flynn, Joshua
    Abstract:
    Due to the high cost of precursor materials, complex oxides of 4d and 5d transition metals are under-studied compared to their 3d counterparts. Recent studies have shown that oxides containing heavier transition metals can exhibit exotic electronic states due to presence of strong spin-orbit coupling. The goal of this dissertation...
    Resource Type:
    Dissertation
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    = 0–1.0) and (c,d) BaLaIn1-yCayIrO6 (y = 0–0.75) ........................................90

  • Structure-property relationships of YbFe₂O₄-type layered transition metal oxides

    Creator:
    Grajczyk, Rosa
    Abstract:
    The structure–property relationships of solid solutions within the YbFe₂O₄ family of compounds have been studied in relation to their optical, dielectric and magnetic properties. This family of compounds is of recent interest because of the trigonal bipyramid coordination that is rarely observed in transition metal oxides. The systematic study of...
    Resource Type:
    Dissertation
    Full Text:
    bipyramidal site, with a dark purple color resulting from prominent d-d electronic transitions. The