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Search Publications by: Terrence J Udovic (Assoc)

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Displaying 76 - 100 of 166

Developments in the Ni-Nb-Zr Amorphous Alloy Membranes

March 1, 2016
Author(s)
S. Sarker, D. Chandra, M. Hirscher, M. Dolan, D. Isheim, J. Wermer, D. Viano, M. Baricco, Terrence J. Udovic, D. Grant, O. Palumbo, A. Paolone, R. Cantelli
Most of the global H 2 production is derived from hydrocarbon-based fuels, and efficient H 2/CO 2 separation is necessary to deliver a high purity H 2 product. Hydrogen-selective alloy membranes are emerging as a viable alternative to traditional pressure

Fast Lithium-Ionic Conduction in a New Complex Hydride-Sulphide Crystalline Phase

January 11, 2016
Author(s)
Atsushi Unemoto, Hui Wu, Terrence J. Udovic, Motoaki Matsuo, Tamio Ikeshoji, Shin-Ichi Orimo
A new crystalline phase derived from a 90LiBH 4:10P 2S 5 mixture displays high lithium-ionic conductivity of log(ς/S cm -1) = 3.0 at 300 K. It is stable up to 473 K and has both a wide potential window of 0-5 V and favorable mechanical properties for

Unparalleled Lithium and Sodium Superionic Conduction in Solid Electrolytes with Large Monovalent Cage-like Anions

October 8, 2015
Author(s)
Wan Si NMN Tang, Atsushi Unemoto, Wei Zhou, Vitalie Stavila, Motoaki Matsuo, Hui Wu, Shin-Ichi Orimo, Terrence J. Udovic
Solid electrolytes with sufficiently high conductivities and stabilities are the elusive answer to the inherent shortcomings of organic liquid electrolytes prevalent in today's rechargeable batteries. We recently revealed a novel fast-ion-conducting sodium

Stable Interface Formation between TiS 2 and LiBH 4 in Bulk-Type All-Solid-State Lithium Batteries

August 11, 2015
Author(s)
Atsushi Unemoto, Tamio Ikeshoji, Syun Yasaku, Motoaki Matsuo, Vitalie Stavila, Terrence J. Udovic, Shin-Ichi Orimo
In this study, we assembled a bulk-type all-solid-state batter comprised of a TiS 2 positive electrode, LiBH 4 electrolyte, and Li negative electrode. Our battery retained high capacity over 300 discharge-charge cycles when operated at 393 K and 0.2 C. The

Effects of Partial Halide Anion Substitution on Reorientational Motion in NaBH 4 : A Nuclear Magnetic Resonance Study

March 4, 2015
Author(s)
R. V. Skoryunov, O. A. Babanova, A. V. Soloninin, A. V. Skripov, Kristina Verdal, Terrence J. Udovic
To study the effects of partial halide anion substitution on the reorientational motion of [BH 4] anions in NaBH 4, we have measured the 1H and 11B NMR spectra and spin-lattice relaxation rates in the cubic solid solutions Na(BH 4) 0.5Cl 0.5 and Na(BH 4)d0

Structural Behavior of Li 2 B 10 H 10

March 2, 2015
Author(s)
Hui Wu, Wan Si NMN Tang, Vitalie Stavila, Wei Zhou, John J. Rush, Terrence J. Udovic
Based on x-ray and neutron powder diffraction, first-principles calculations, and neutron vibrational spectroscopy, Li 2B 10H 10 was found to exhibit atypical hexagonal-close-packed symmetry to best stabilize the ionic packing of the relatively small Li +

Exceptional Superionic Conductivity in Disordered Sodium Decahydro-closo-decaborate

October 13, 2014
Author(s)
Terrence J. Udovic, Motoaki Matsuo, Wan Si NMN Tang, Hui Wu, Vitalie Stavila, Alexei V. Soloninin, Roman V. Skoryunov, Olga A. Babanova, Alexander Skripov, John J. Rush, Atsushi Unemoto, Hitoshi Takamura, Shin-Ichi Orimo
Na 2B 10h 10 undergoes a transition from an ordered monoclinic phase to a disordered, face-centered-cubic phase near 370 K with the emergence of a vacancy-rich, mobile Na + sublattice exhibiting dramatic superionicity ({approximately equal}0.01 S cm -1 at