Results 21 to 30 of about 1,128,252 (254)

H2BASQUE - TECHNOLOGIES FOR BOOSTING THE HYDROGEN ECONOMY IN THE BASQUE COUNTRY: GREEN HYDROGEN PRODUCTION

open access: yes, 2022
Publisher Copyright: © 2022 Proceedings of WHEC 2022 - 23rd World Hydrogen Energy Conference: Bridging Continents by H2. All rights reserved.H2BASQUE is a strategic project funded by the Basque Government for developing innovative technologies (and their
Alcaide, Francisco   +7 more
core   +1 more source

Mass spectrometric measurement of hydrogen isotope fractionation for the reactions of chloromethane with OH and Cl [PDF]

open access: yesAtmospheric Chemistry and Physics, 2018
Chloromethane (CH3Cl) is an important provider of chlorine to the stratosphere but detailed knowledge of its budget is missing. Stable isotope analysis is a potentially powerful tool to constrain CH3Cl flux estimates.
F. Keppler   +11 more
doaj   +1 more source

Temperature dependence of hydrogen isotope effect in LaNi5-H(D) system

open access: yesNuclear Analysis, 2023
To study inverse effect of hydrogen isotopes in LaNi5 for hydrogen isotope separation at ambient temperature, temperature dependence of hydrogen isotope effect in LaNi5-H(D) system was investigated in the temperature range -70 °C to 3 °C.
Weiwei Wang   +6 more
doaj   +1 more source

Isotope Effects on Chemical Shifts in the Study of Intramolecular Hydrogen Bonds

open access: yesMolecules, 2015
The paper deals with the use of isotope effects on chemical shifts in characterizing intramolecular hydrogen bonds. Both so-called resonance-assisted (RAHB) and non-RAHB systems are treated. The importance of RAHB will be discussed.
Poul Erik Hansen
doaj   +1 more source

A forensic approach to understanding habitat use from stable isotope analysis of (avian) claw material [PDF]

open access: yes, 2003
1. The potential of using stable isotope signatures of avian claws in order to infer diet and habitat use was investigated. 2. Highly significant relationships observed between stable carbon and nitrogen isotope ratios (<sup>13</sup>C, &
Bearhop, S.   +11 more
core   +1 more source

Bifunctional catalytic activity of anion-doped LaSrCoO4 for oxygen reduction and evolution reactions

open access: yesRoyal Society Open Science
Here, we synthesized Co-based, anion-incorporated‍ ‌R‌u‌d‌d‌l‌e‌s­d‌e‌n‌–‌Popper perovskite electrocatalysts (LaSrCoO4−x X y ) and compared their catalytic performances in the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER).
Ittoku Nozawa, Hidehisa Hagiwara
doaj   +1 more source

Power-to-Hydrogen and Hydrogen-to-X : system Analysis of the techno-economic, legal, and regulatory conditions

open access: yes, 2021
P2X pathway definitions has the aim to clarify terminologies that are often used but with different meanings or intentions which leads to misunderstanding and ambiguity.
Funez, C.   +8 more
core  

Multideuteration of Nitroaromatics by Silver-Catalyzed Hydrogen-Isotope Exchange [PDF]

open access: yes, 2022
A silver-catalyzed deuteration of nitroaromatics has been achieved using D2O as the deuterium source. Distinct from the well-established directing group guided hydrogen-isotope exchange, the protocol showed an interesting deuteration pattern, where ...
Jianfei, Bai   +9 more
core   +2 more sources

Hydrogen and oxygen isotope ratios of thermal waters of Okayama Prefecture, Japan [PDF]

open access: yes, 1999
Hydrogen and oxygen isotope rations of thermal waters from 46 spas in Okayama Prefecture range from -62.6 to -29.2% in δD and from -10.0 to -4.4% in δ18O, respectively.
Yamashita, Ruka   +3 more
core   +1 more source

An isotope study of the felsic units of the Bushveld Large Igneous Province, South Africa [PDF]

open access: yes, 2010
Includes abstract.An O, H, Sr and Nd isotope study was carried out on the ~ 2059 Ma Bushveld granites and granophyres.
Fourie, Duane
core   +1 more source

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