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  1. No Access

    Article

    Chromium segregation in Cr-doped TiO2 (rutile): impact of oxygen activity

    This work considers the effect of chromium surface segregation for polycrystalline Cr-doped TiO2 on surface vs. bulk defect disorder. It is shown that annealing of Cr-doped TiO2 (0.04 at% Cr) in the gas phase of ...

    Kazi A. Rahman, N. Sharma, A. J. Atanacio, T. Bak, E. D. Wachsman, M. Moffitt… in Ionics (2019)

  2. No Access

    Article

    Solvothermal synthesis of high hydrogen permeable Pd/Ag alloy particles and their hydrogen transport properties

    Pd76Ag24 nanoparticles with high purity and a face-centered cubic structure were prepared using a solvothermal method. The lattice parameter of the Pd77Ag23 nanopowders (space group 225Fm3m) was calculated to be

    S. Y. Jeon, H. N. Im, J. S. Lim, E. D. Wachsman, S. J. Song in Ionics (2013)

  3. No Access

    Article

    Oxygen excess nonstoichiometry and thermodynamic quantities of La2NiO4 + δ

    The oxygen excess nonstoichiometry of La2NiO4 + δ is measured as a function of temperature and oxygen partial pressure (pO2) by coulometric titration method. A positive deviation from the ideal d...

    S.-Y. Jeon, M.-B. Choi, J.-H. Hwang… in Journal of Solid State Electrochemistry (2012)

  4. No Access

    Article

    Hydrogen permeability and effect of microstructure on mixed protonic-electronic conducting Eu-doped strontium cerate

    The hydrogen permeability of SrCe0.95Eu0.05O3−δ was studied as a function of temperature, hydrogen partial pressure (PH2) gradient, and water vapor partial pressure (PH2O) gradient. The effect of the microstructu...

    S.-J. Song, E. D. Wachsman, J. Rhodes, H.-S. Yoon… in Journal of Materials Science (2005)

  5. No Access

    Article

    A model for the spatial distribution and transport properties of defects in mixed ionic-electronic conductors part I: Defect concentration — Pressure relationships and the spatial distribution of defects

    The spatial distribution and transport of defect species in a mixed ionic-electronic conductor (MIEC) depend on the activity of the external gas phase at either side of the MIEC, the defect equilibria and mobi...

    K. L. Duncan, E. D. Wachsman in Ionics (2000)

  6. No Access

    Article

    Spectroscopic investigation of oxygen vacancies in solid oxide electrolytes

    The primary species in both solid-state conduction and heterogeneous electrocatalysis of solid oxide electrolytes is the anion vacancy. The nature and effect of the local environment on anion vacancies in 10 m...

    E. D. Wachsman, N. Jiang, C. W. Frank, D. M. Mason, D. A. Stevenson in Applied Physics A (1990)