Results 231 to 240 of about 172,700 (288)
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Hydrogen isotope cell and its application to hydrogen isotope sensing
Solid State Ionics, 2000Abstract The EMFs of hydrogen isotope cells with H 2 –D 2 gas mixtures against H 2 and D 2 reference gases were measured at 700°C using CaZr 0.90 In 0.10 O 3− α as a proton-conducting solid electrolyte. Steady electromotive forces (EMFs) with quick response were obtained. The EMFs were almost linear functions of the gas composition of the H 2 –D
Hiroshige Matsumoto, Hiroyasu Iwahara
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Hydrogen and oxygen isotope values in hydrogen peroxide
Rapid Communications in Mass Spectrometry, 2011Hydrogen peroxide (H 2 O 2 ) is a widely used oxidizer with many commercial applications; unfortunately, it also has terrorist‐related uses. We analyzed 97 hydrogen peroxide solutions representing four grades purchased across the United States and in ...
Janet E, Barnette +4 more
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Kinetic hydrogen isotope effect
Journal of Chemical Education, 1986This note describes three simple demonstrations or laboratory exercises that illustrate kinetic hydrogen isotopic effects.
David A. Binder, Robert Eliason
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The secondary hydrogen isotope effect
The International Journal of Applied Radiation and Isotopes, 1960Abstract Secondary isotope effects are reviewed with particular regard to their interpretation within a consistent scheme. It appears that adherence to formal considerations of vibrational frequency shifts is inadequate for the interpretation of many experimental results, and that these may be more fruitfully discussed in terms of “electronic ...
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Nature, 1956
THERE appears to be some confusion1–3 in the derivation and application of certain relationships featuring the separation factor for hydrogen (H) and deuterium (D) chemical-exchange processes.
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THERE appears to be some confusion1–3 in the derivation and application of certain relationships featuring the separation factor for hydrogen (H) and deuterium (D) chemical-exchange processes.
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MUON CAPTURE IN HYDROGEN ISOTOPES
Nuclear Physics A, 1981Abstract After a survey of the phenomenology of muonic hydrogen atoms and molecules recent experiments at SIN are discussed, dealing with muonic atoms and molecules in deuterium. These experiments could clarify the longstanding problem of hyperfine populations of muonic deuterium atoms.
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Base metal‐catalyzed hydrogen isotope exchange
Journal of Labelled Compounds and Radiopharmaceuticals, 2020Hydrogen isotope exchange (HIE) has played an increasingly important role in deuteration and tritiation of compounds in the pharmaceutical industry. Transition metal‐catalyzed HIE methods have gained considerable attention in the past decades, and most of these methods were comprehensively reviewed in 2010 in a special JLCR issue.
Haifeng Yang, David Hesk
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Nature, 1967
HYDROGEN isotope diffusion in metals and polymers has generally been treated in the literature as a single body problem with the motion of the hydrogen regarded as the important parameter. On this basis the equation for interstitial diffusion of hydrogen atoms in metals or molecular diffusion in polymers follows an equation of the form
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HYDROGEN isotope diffusion in metals and polymers has generally been treated in the literature as a single body problem with the motion of the hydrogen regarded as the important parameter. On this basis the equation for interstitial diffusion of hydrogen atoms in metals or molecular diffusion in polymers follows an equation of the form
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Noncovalent Hydrogen Isotope Effects
Russian Journal of Physical Chemistry A, 2018Zero-point energies (ZPE) and isotope effects, induced by intermolecular, noncovalent vibrations, are computed and tested by experimental data. The ZPE differences of H- and D-complexes of water with hydrogen, methane, and water molecules are about 100–300 cal/mol; they result to isotope effects IE of 1.20–1.70.
A. L. Buchachenko, N. N. Breslavskaya
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Hydrogen isotope exchange in tungsten during heating in hydrogen isotope gas atmosphere
Fusion Engineering and Design, 2020Abstract In the present study, successive exposure to tritium gas and deuterium gas was performed at elevated temperatures for tungsten samples with irradiation defects created by helium ion irradiation to investigate the effects of hydrogen isotope exchange on tritium removal.
Yuji Nobuta +3 more
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