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Your search keyword '"Terry D. Humphries"' showing total 3 results
Start Over Author "Terry D. Humphries" Journal the journal of physical chemistry c
3 results on '"Terry D. Humphries"'

1. Fluorine Substitution in Magnesium Hydride as a Tool for Thermodynamic Control

Author

Julianne E. Bird, Terry D. Humphries, M. Veronica Sofianos, Mark Paskevicius, Matthew R. Rowles, Craig E. Buckley, Richard A. Mole, Dehong Yu, Jack Yang, and Mariana S. Tortoza

Subjects
Materials science, Hydrogen, chemistry.chemical_element, 02 engineering and technology, Vibrational spectrum, 010402 general chemistry, Thermal energy storage, 7. Clean energy, 01 natural sciences, Metal, Hydrogen storage, chemistry.chemical_compound, Thermal conductivity, Data_FILES, Physical and Theoretical Chemistry, Magnesium hydride, 021001 nanoscience & nanotechnology, 0104 chemical sciences, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, General Energy, chemistry, Chemical engineering, visual_art, Fluorine, visual_art.visual_art_medium, 0210 nano-technology
Abstract

Metal hydrides continue to vie for attention as materials in multiple technological applications including hydrogen storage media, thermal energy storage (TES) materials, and hydrogen compressors. ...

Published
2020
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2. Physicochemical Characterization of a Na–H–F Thermal Battery Material

Author

Terry D. Humphries, M. Veronica Sofianos, Aditya Rawal, Craig E. Buckley, Julianne E. Bird, Mark Paskevicius, Matthew R. Rowles, and Christopher R. Prause

Subjects
Range (particle radiation), Materials science, Analytical chemistry, 02 engineering and technology, 010402 general chemistry, 021001 nanoscience & nanotechnology, Thermal energy storage, 7. Clean energy, 01 natural sciences, 0104 chemical sciences, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, Characterization (materials science), Sodium hydride, chemistry.chemical_compound, General Energy, chemistry, 13. Climate action, Thermal, Physical and Theoretical Chemistry, 0210 nano-technology, Thermal Battery
Abstract

Fluorine-substituted sodium hydride is investigated for application as a thermal energy storage material inside thermal batteries. A range of compositions of NaHxF1–x (x = 0, 0.5, 0.7, 0.85, 0.95, ...

Published
2020
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3. Structural Changes Observed during the Reversible Hydrogenation of Mg(BH4)2 with Ni-Based Additives

Author

Ivan Saldan, Olena Zavorotynska, Terry D. Humphries, Craig M. Jensen, Satoshi Hino, M. Chong, Bjørn C. Hauback, and Stefano Deledda

Subjects
Materials science, Hydrogen, Absorption spectroscopy, Composite number, chemistry.chemical_element, Partial decomposition, Hydrogen desorption, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, Amorphous solid, General Energy, chemistry, Desorption, Physical and Theoretical Chemistry, Ball mill, Nuclear chemistry
Abstract

The decomposition and rehydrogenation of γ-Mg(BH4)2 ball milled together with 2 mol % of Ni-based additives, Ninano, NiCl2, NiF2, and Ni3B, has been investigated during one hydrogen desorption–absorption cycle. Under the applied ball-milling conditions, no mechanochemical reactions between γ-Mg(BH4)2 and Niadd were observed. Hydrogen desorption carried out at temperatures of 220–264 °C resulted for all samples in partial decomposition of Mg(BH4)2 and formation of amorphous phases, as seen by powder X-ray diffraction (PXD). PXD analysis after rehydrogenation at temperatures of 210–262 °C and at pressures between 100 and 155 bar revealed increased fractions of crystalline β-Mg(BH4)2, indicating a partial reversibility of the composite powders. The highest amount of [BH4]− is formed in the composite containing Ni3B. Analysis by X-ray absorption spectroscopy performed after ball milling, after desorption, and after absorption shows that the Ni3B additive remains unaffected, whereas NiCl2 and NiF2 additives re...

Published
2014
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