Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"MIXED IONIC ELECTRONIC CONDUCTORS"”.
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Electrochemomechanics in Mixed Ionic Electronic Conductors and solid oxide cells
… a model for coupled electrochemomechanics in Mixed Ionic Electronic Conductors (MIEC). A continuum model is formulated to simulate the transport of ionic defects and the stress distribution in the conductor arising from the chemical expansion associated with the defects. First, a finite …
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Light and Charge Management in Optoelectronic Systems
… of photogenerated charge in the context of mixed ionic electronic conductors. We introduce a new interpretation of surface photovoltage measurements for these materials and demonstrate control over transport of charge throughout the material. Thereafter, we explore the physical implications …
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Defect chemistry, transport properties and thermodynamic stability of acceptor doped and undeoped layered La 2 NiO 4
… the solid oxide electrolytes and the mixed ionic electronic conductors. The latter type of membrane is the subject of research of this thesis. During of oxygen transport two basic processes occur in a single-phase ceramic membrane at steady state are discussed. In the bulk, coupled …
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Understanding and Controlling the Surface Chemistry of Oxides to Enhance Catalytic Activity at Elevated Temperatures
… way to perform the OCM reaction using mixed ionic-electronic conductors (MIEC) as a backbone electrode and OCM-active secondary particles deposited onto the surface of the MIEC electrode. Optimizing the dispersion of the OCM-active secondary particles has been proposed as a promising …
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$^{17}$O Solid-State NMR Spectroscopy of Functional Oxides for Energy Conversion
… a class of perovskite-derived structures used as mixed ionic-electronic conductors (MIECs) for SOFC cathodes, and (2) further uses of multinuclear variable-temperature NMR spectroscopy, with emphasis on $^{17}$O NMR results, to elucidate mechanistic details of oxide-ion motion and sublattice …
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Characterization and control of non-stoichiometry in Pr₀.₁Ce₀.₉O₂-[d̳e̳l̳t̳a̳] thin films : correlation with SOFC electrode performance
… solution system as a model system given its mixed ionicelectronic conductivity, well described defect equilibria and transport properties, and stability over with limits of temperature and oxygen partial pressure. PrCel-02-6 (PCO) thin films with x=0.01, 0.10 and 0.20 were prepared as thin …
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Monitoring Tissue Function Dynamics in vitro with Bioelectronics: Towards Understanding Barrett’s Oesophagus Pathogenesis
… function is to measure the flux of solvated, ionic species across the epithelium, in response to an applied electrical potential difference. Poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS), a conjugated polymer blended with a poly-electrolyte, is identified as a suitable …