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Full-Text Articles in Engineering
Combining Proton Conductor Bazr0.8Y0.2O3-Δ With Carbonate: Promoted Densification And Enhanced Proton Conductivity, Xue Li, Nansheng Xu, Lingling Zhang, Kevin Huang
Combining Proton Conductor Bazr0.8Y0.2O3-Δ With Carbonate: Promoted Densification And Enhanced Proton Conductivity, Xue Li, Nansheng Xu, Lingling Zhang, Kevin Huang
Kevin Huang
No abstract provided.
Mixed Oxide-Ion And Carbonate-Ion Conductors (Moccs) As Electrolyte Materials For Solid Oxide Fuel Cells, Xue Li, Guoliang Xiao, Seung Min Lee, Kevin Huang
Mixed Oxide-Ion And Carbonate-Ion Conductors (Moccs) As Electrolyte Materials For Solid Oxide Fuel Cells, Xue Li, Guoliang Xiao, Seung Min Lee, Kevin Huang
Kevin Huang
A systematic investigation on the effective ionic conductivity (σm) of a novel intermediate temperature mixed oxide-ion and carbonate-ion conductor (MOCC) consisting of a ceria and a carbonate is reported. The study explicitly shows that the observed remarkable temperature-dependent σm is primarily the result of softening/melting of the carbonate phase as the physical state of the carbonate phase transforms from solid, softened to molten. DSC analysis complements the understanding of the observed electrical behavior by revealing temperatures of melting and solidification in agreement with the onset temperatures of σm. In addition, the measured σm agrees reasonably well with those simulated by …
Effective Ionic Conductivity Of A Novel Intermediate-Temperature Mixed Oxide-Ion And Carbonate-Ion Conductor, Xue Li, Guoliang Xiao, Kevin Huang
Effective Ionic Conductivity Of A Novel Intermediate-Temperature Mixed Oxide-Ion And Carbonate-Ion Conductor, Xue Li, Guoliang Xiao, Kevin Huang
Kevin Huang
A systematic investigation on the effective ionic conductivity (σm) of a novel intermediate-temperature mixed oxide-ion and carbonate-ion conductor MOCC consisting of a ceria phase and a carbonate phase is reported. The study explicitly shows that the observed remarkable temperature-dependent σm is primarily the result of softening/melting of the carbonate phase as the physical state of the carbonate phase transforms from solid, softened to molten. Differential scanning calorimetry analysis complements the understanding of the observed electrical behavior by revealing temperatures of melting and solidification in agreement with the onset temperatures of σm. In addition, the measured σmagrees reasonably well with that …
Oxygen Permeation Through Cobalt-Containing Perovskites: Surface Oxygen Exchange Vs. Lattice Oxygen Diffusion, Kevin Huang, John B. Goodenough
Oxygen Permeation Through Cobalt-Containing Perovskites: Surface Oxygen Exchange Vs. Lattice Oxygen Diffusion, Kevin Huang, John B. Goodenough
Kevin Huang
The oxygen permeation fluxes from p′O2 to pnO2 (p′O2>pnO2) across cobalt-containing perovskite ceramic membranes La1−xSrxCoO3−δ and SrCo0.8Fe0.2O3−δ were measured by gas chromatography as functions of oxygen chemical potential gradient, temperature, thickness, and catalytic activity on the surface. Power indexes 0.5>n>0 for uncatalyzed La1−xSrxCoO3−δ and 1>n>0.5 for SrCo0.8Fe0.2O3−δ were obtained when JO2 vs. p′nO2−p'′nO2 …