Isotope Exchange Raman Spectroscopy (IERS): A Novel Technique to Probe Physicochemical Processes in situ.
Sign Up to like & getrecommendations! Published in 2023 at "Advanced materials"
DOI: 10.1002/adma.202303259
Abstract: We have developed a novel in situ methodology for the direct study of mass transport properties in oxides with spatial and unprecedented time resolution, based on Raman spectroscopy coupled to isothermal isotope exchanges. Changes in the… read more here.
Keywords: isotope exchange; spectroscopy; exchange raman; exchange ... See more keywords
Ruthenium(II)biscarboxylate‐Catalyzed Hydrogen‐Isotope Exchange by Alkene C−H Activation
Sign Up to like & getrecommendations! Published in 2018 at "ChemCatChem"
DOI: 10.1002/cctc.201801601
Abstract: Ruthenium(II) biscarboxylate catalysis enabled efficient hydrogen isotope exchange of acrylic C−H bonds with user‐friendly D2O. The C−H labelling was characterized by excellent positional selectivity and a broad functional group tolerance. The deuteration was successfully conducted… read more here.
Keywords: ruthenium; hydrogen isotope; ruthenium biscarboxylate; isotope exchange ... See more keywords
Temperature dependence of isotopic fractionation in the CO2‐O2 isotope exchange reaction
Sign Up to like & getrecommendations! Published in 2022 at "Rapid Communications in Mass Spectrometry"
DOI: 10.1002/rcm.9301
Abstract: Rationale Oxygen isotope exchange between O2 and CO2 in the presence of heated platinum (Pt) is an established technique for determining the δ 17O value of CO2. However, there is not yet a consensus on… read more here.
Keywords: fractionation factors; isotope exchange; exchange; fractionation ... See more keywords
Modeling of fuel retention and hydrogen-isotope exchange removal from the pre-damaged tungsten material
Sign Up to like & getrecommendations! Published in 2018 at "Fusion Engineering and Design"
DOI: 10.1016/j.fusengdes.2018.02.044
Abstract: Abstract The fuel retention and hydrogen-isotope exchange removal in the pre-damaged tungsten (W) have been investigated in the present work. The fuel retention code Hydrogen Isotope Inventory Processes Code (HIIPC) has been upgraded to model… read more here.
Keywords: isotope exchange; retention; pre; hydrogen ... See more keywords
Trace tritium removal in China reduced activation ferritic-martensitic steels through thermal desorption with/without hydrogen isotope exchange
Sign Up to like & getrecommendations! Published in 2019 at "Fusion Engineering and Design"
DOI: 10.1016/j.fusengdes.2019.111330
Abstract: Abstract Effective removal of deuterium and tritium accumulated in fusion reactor materials is crucial for practical and safe fusion energy. In this paper, investigations on tritium removal in China Low Activation Martensitic (CLAM) steel and… read more here.
Keywords: tritium removal; tritium; hydrogen isotope; isotope exchange ... See more keywords
Hydrogen isotope exchange in tungsten during heating in hydrogen isotope gas atmosphere
Sign Up to like & getrecommendations! Published in 2020 at "Fusion Engineering and Design"
DOI: 10.1016/j.fusengdes.2020.111703
Abstract: Abstract 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… read more here.
Keywords: tritium; deuterium gas; hydrogen isotope; gas ... See more keywords
Multiple stable isotope fronts during non-isothermal fluid flow
Sign Up to like & getrecommendations! Published in 2018 at "Geochimica et Cosmochimica Acta"
DOI: 10.1016/j.gca.2017.12.009
Abstract: Abstract Stable isotope signatures of oxygen, hydrogen and other elements in minerals from hydrothermal veins and metasomatized host rocks are widely used to investigate fluid sources and paths. Previous theoretical studies mostly focused on analyzing… read more here.
Keywords: isotope; fluid; fluid flow; isotope exchange ... See more keywords
Equilibrium fractionation and isotope exchange kinetics between aqueous Se(IV) and Se(VI)
Sign Up to like & getrecommendations! Published in 2020 at "Geochimica et Cosmochimica Acta"
DOI: 10.1016/j.gca.2020.03.017
Abstract: Abstract The selenium (Se) isotope system has been proposed as a redox proxy in environmental and paleoceanographic studies. However, Se isotope exchange among various Se species can potentially interfere with redox-related isotope signatures, and is… read more here.
Keywords: equilibrium fractionation; time; exchange; isotope exchange ... See more keywords
An experimental study on oxygen isotope exchange reaction between CAI melt and low-pressure water vapor under simulated Solar nebular conditions
Sign Up to like & getrecommendations! Published in 2021 at "Geochimica et Cosmochimica Acta"
DOI: 10.1016/j.gca.2021.09.016
Abstract: Abstract Calcium-aluminum-rich inclusions (CAIs) are known as the oldest high-temperature mineral assemblages of the Solar System. The CAIs record thermal events that occurred during the earliest epochs of the Solar System formation in the form… read more here.
Keywords: isotope exchange; water vapor; oxygen isotope; exchange ... See more keywords
Oxygen isotope exchange in proton-conducting oxides based on lanthanum scandates
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Hydrogen Energy"
DOI: 10.1016/j.ijhydene.2019.08.088
Abstract: Abstract A method of the oxygen isotope exchange with equilibration of the gas phase was used in order to obtain the temperature dependences of the oxygen surface exchange and diffusion coefficients of the proton-conducting oxides… read more here.
Keywords: exchange; conducting oxides; isotope exchange; oxygen isotope ... See more keywords
Oxygen isotope exchange in doped lanthanum zirconates
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Solid State Chemistry"
DOI: 10.1016/j.jssc.2018.08.022
Abstract: Abstract The interaction between oxygen in the gas phase and La2–xCaxZr2O7–α (x = 0; 0.05; 0.1) with a pyrochlore structure was studied by the isotope exchange method with the gas phase equilibration in the temperature range of… read more here.
Keywords: oxygen isotope; doped lanthanum; exchange doped; exchange ... See more keywords