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Filtering by: Alternative title ssim The redox chemistry of neptunium in gamma-irradiated aqueous nitric acid in the presence of an organic phase Remove constraint Alternative title ssim: The redox chemistry of neptunium in gamma-irradiated aqueous nitric acid in the presence of an organic phase Committee Member Nyman, May Remove constraint Committee Member: Nyman, May Degree Level Doctoral Remove constraint Degree Level: Doctoral

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  • Novel Charge Carriers for Aqueous Electrochemical Energy Storage

    Creator:
    Sandstrom, Sean K.
    Abstract:
    The continued long-term use of fossil fuels as a primary energy source has resulted in dramatic increases in greenhouse gas emissions and the associated concerns of climate change and environmental pollution. A key strategy to circumvent these issues is a global shift away from fossil fuels toward renewable energy sources....
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    Dissertation
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    ] –). This study demonstrates how the redox of halide anions can be utilized in aqueous batteries and opens

  • Transition Metal Oxides for Aqueous Electrochemical Energy Storage

    Creator:
    Jiang, Heng
    Abstract:
    In the 21st century, environmental deterioration is now an indisputable fact. Reliable and economically viable electricity systems based on renewable sources are urgently needed to replace the environmentally detrimental fossil fuels. The feasibility of incorporating renewable-but-intermittent solar and wind energy heavily depends on the development of cost-effective and safe technologies,...
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    Dissertation
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    carriers in the aqueous system ........................ 26 1.5 Anion-insertion redox chemistry

  • Aqueous niobium chemistry at low pH : new precursors for oxide thin films

    Creator:
    Park, Deok-Hie
    Abstract:
    Phosphate and peroxide stabilize new oxo-hydroxo niobium clusters in water at low pH. The clusters open a new chapter in aqueous niobium chemistry under acidic conditions. The clusters also produce atomically smooth, amorphous niobium oxide phosphate (NbPOx) thin films. Reaction pathways from cluster solutions to amorphous niobium oxide phosphate solids...
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    Dissertation
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    for the degree of Doctor of Philosophy in Chemistry presented on June 14, 2017. Title: Aqueous

  • New chemistry for electrochemical energy storage applications

    Creator:
    Wang, Xingfeng
    Abstract:
    Electrochemical capacitors and batteries are two major electrochemical energy storage technologies, which have been investigated extensively to meet the rapidly-growing demand for higher energy, higher power, lower cost and enhanced safety in the past few decades. With the charge storage mechanism of electrostatic charge adsorption desorption via electrical double layers,...
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    Dissertation
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    anode metal. Cathode covering the dielectric could be in either liquid phase, e.g. aqueous/organic

  • New Graphite Intercalation Chemistry with Alkaline Earth Metals

    Creator:
    Xu, Wei
    Abstract:
    Novel graphite intercalation compounds (GICs) and associated chemistry have been explored, specifically: (1) containing alkyl- substituted imidazolium cations; (2) a series containing alkaline earth metal (Mg, Ca, Sr, Ba) cations with ethylenediamine (en) co-intercalates; (3) showing reversible intragallery M-M bonding and (4) via electrochemical intercalation of Mg cations with potential...
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    oxidizing or reducing reagents or via electrochemical methods. An example lies in the chemistry of layered

  • Precursor Chemistry and Film Structure and Properties via Solution Deposition

    Creator:
    Huang, Yu
    Abstract:
    Chemistry of preparing dense film from solution deposition is explored with several cases in this thesis. Surface dense structure, conversion at melting point, and ion exchange in aqueous solution are the main topics covered here for the thin films of aluminum oxide phosphate and tin dioxide. Thin film density, optical...
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    Dissertation
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    the degree of Doctor of Philosophy in Chemistry presented on June 13th, 2017. Title: Precursor

  • Investigations of two chemical systems relevant to pyroprocessing used nuclear fuel

    Creator:
    Hames, Amber
    Abstract:
    Pyroprocessing is an advanced technology for recycling used nuclear fuel. Pyrochemical processes encompass a wide range of chemical, physical, and electrochemical methods to partition fission products and other components from used nuclear fuel, which allows for the reuse of the actinides in nuclear fuel. This dissertation investigates two chemical systems...
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    regarding the behavior of neptunium chloride in this molten electrolyte. The phase 5 behavior

  • Preparation and Properties of Porous Carbon Materials

    Creator:
    Xing, Zhenyu
    Abstract:
    Porous carbon is indispensable in modern technology applications. It is used for energy storage, gas separation, water purification, catalyst support, and chromatography. The diversity of its applications stems from its unique properties, including high specific surface area, tunable pore volume, and chemical stability. Specifically, the large surface area provides high...
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    stable cycle life. The increased degree of local crystallinity in porous carbon enabled an improved

  • Examining the Environmental Behavior and Treatment Efficacy of Titanium Dioxide Nanomaterials in Complex Systems

    Creator:
    Deline, Alyssa R.
    Abstract:
    Metal oxide nanoparticles (MONPs) are manufactured at the greatest rate of any class of nanomaterial due to their wide variety of industrial, commercial, and environmental applications. The sustainable use of MONPs requires a balance of careful consideration of their potential negative environmental impacts with the effective exploitation of their unique...
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    Dissertation
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    mechanistic conclusions drawn in experiments are not affected by the presence of the label. Guidance is