Results 11 to 20 of about 11,727 (238)
Advanced Science, 2023 Amino acids (AAs) and ammonia are metabolic markers essential for nitrogen metabolism and cell regulation in both plants and humans. NMR provides interesting opportunities to investigate these metabolic pathways, yet lacks sensitivity, especially in case
Ewoud Vaneeckhaute +4 more
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Study of milling time impact on hydrogen desorption from LiAlH4-Fe2O3 composites [PDF]
Processing and Application of Ceramics, 2022 LiAlH4 was modified by mechanical milling and with the addition of 5 wt.% Fe2O3 in order to improve its hydrogen desorption properties. The composite was milled for 1, 3, 5, 7 or 15min, and depending on the milling time, various phenomena took place.
Milanović Igor +7 more
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Hydride Reduction by a Sodium Hydride–Iodide Composite [PDF]
Angewandte Chemie, 2016 AbstractSodium hydride (NaH) is widely used as a Brønsted base in chemical synthesis and reacts with various Brønsted acids, whereas it rarely behaves as a reducing reagent through delivery of the hydride to polar π electrophiles. This study presents a series of reduction reactions of nitriles, amides, and imines as enabled by NaH in the presence of ...
Too, Pei Chui +4 more
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Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2021 An analysis was carried out of influence of , Ti Mo and W on the nature of the amorphous nano- and crystalline structures on the strength and kinetic characteristics – diffusion D and permeability Φ of hydrogen in membrane alloys based on binary Nb - Ni ...
Valery A. Polukhin +2 more
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Energies, 2019 A solid-state NaBH4/Co composite has been employed as a hydrogen-generating material, as an alternative to sodium borohydride solutions, in the long storage of hydrogen.
Olga V. Netskina +4 more
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Inorganics, 2019 Two closed-cycle cryogenic refrigerators were used to generate temperatures of ~18 K via evaporation of liquid hydrogen at the interfaces with radiofrequency and infrared sensors on an Earth-orbiting spacecraft that measured the anisotropy of the cosmic ...
Robert C. Bowman
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Acoustic Plasmons in Nickel and Its Modification upon Hydrogen Uptake
Nanomaterials, 2022 In this work, we study, in the framework of the ab initio linear-response time-dependent density functional theory, the low-energy collective electronic excitations with characteristic sound-like dispersion, called acoustic plasmons, in bulk ...
Yury M. Koroteev +4 more
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HYDROGEN PERMEABILITY OF AMORPHOUS, NANO- AND CRYSTALLINE ALLOYS BASED ON IRON AND NICKEL
Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2020 The kinetics of hydrogen permeability and diffusion in hydrogenated membrane alloys based on Fe and Ni have been investigated, which have functional characteristics, structural strength and thermal stability, and are a promising alternative to expensive ...
V.A. Polukhin +2 more
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Challenges, 2017 Automotive and stationary energy storage are among the most recently-proposed and still unfulfilled applications for lithium ion devices. Higher energy, power and superior safety standards, well beyond the present state of the art, are actually required ...
Sergio Brutti +10 more
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Materials Research, 2005 Sintered Pr-based magnets were produced using a new laboratory technique for powder handling. Unlike the conventional procedure for preparing sintered permanent magnets in the laboratory, the powder technique used in this investigation does not require a
Edson Pereira Soares +4 more
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