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Stretching Epitaxial La0.6Sr0.4CoO3-δ for Fast Oxygen Reduction
Dongkyu Lee, Ryan Jacobs, Youngseok Jee +7
The slow kinetics of the oxygen reduction reaction (ORR) is one of the key challenges in developing high performance energy devices, such as solid oxide fuel cells. Straining a fil…
Work function and surface stability of tungsten-based thermionic electron emission cathodes
Ryan Jacobs, Dane Morgan, John Booske
Materials that exhibit a low work function and therefore easily emit electrons into vacuum form the basis of electronic devices used in applications ranging from satellite communic…
CALPHAD modeling and ab initio calculations of the Np-U-Zr system
Wei Xie, Dane Morgan
Phase diagram of Np-U-Zr, a key ternary alloy system of relevance for metallic nuclear fuels, is still largely undetermined. Here a thermodynamic model for the Np-U-Zr system is de…
Transition state redox during dynamical processes in semiconductors and insulators
Guangfu Luo, Thomas F. Kuech, Dane Morgan
Activation barriers associated with ion diffusion and chemical reactions are vital to understand and predict a wide range of phenomena, such as material growth, ion transport, and…
Strain effects on oxygen vacancy formation energy in perovskites
Tam Mayeshiba, Dane Morgan
Oxygen vacancy formation energy is an important quantity for enabling fast oxygen diffusion and oxygen catalysis in technologies like solid oxide fuel cells. Both previous literatu…
Imaging of Single La Vacancies in LaMnO
Jie Feng, Alexander V. Kvit, Chenyu Zhang +4
We report an approach for three-dimensional imaging of single vacancies using high precision quantitative high-angle annular dark-field Z-contrast scanning transmission electron mi…