Determination of Oxide Ion Conductivity in Ba-Doped LaYbO3 Proton-Conducting Perovskites via an Oxygen Isotope Exchange Method

2021 ◽  
Vol 125 (3) ◽  
pp. 1703-1713
Author(s):  
Junji Hyodo ◽  
Shogo Kato ◽  
Shintaro Ida ◽  
Tatsumi Ishihara ◽  
Yuji Okuyama ◽  
...  
Keyword(s):  
Oxygen Isotope ◽  
Isotope Exchange ◽  
Ion Conductivity ◽  
Exchange Method ◽  
Proton Conducting ◽  
Oxygen Isotope Exchange ◽  
Oxide Ion Conductivity ◽  
Oxide Ion ◽  
Isotope Exchange Method

Evaluation of isotope diffusion coefficient and surface exchange coefficient of ScSZ series oxide by oxygen isotope exchange method

2017 ◽  
Vol 301 ◽  
pp. 156-162 ◽  
Author(s):  
Takaaki Sakai ◽  
Junji Hyodo ◽  
Masako Ogushi ◽  
Atsushi Inoishi ◽  
Shintaro Ida ◽  
...  
Keyword(s):  
Diffusion Coefficient ◽  
Oxygen Isotope ◽  
Isotope Exchange ◽  
Exchange Coefficient ◽  
Exchange Method ◽  
Surface Exchange ◽  
Oxygen Isotope Exchange ◽  
Surface Exchange Coefficient ◽  
Isotope Exchange Method

Oxygen Isotope Exchange in Nanocrystal Oxide Powders

2009 ◽  
Vol 7 ◽  
pp. 33-41 ◽  
Author(s):  
Anatoly Yakovlevich Fishman ◽  
Tatiana Eugenievna Kurennykh ◽  
S.A. Petrova ◽  
Vladimir Borisovich Vykhodets ◽  
V.B. Vykhodets ◽  
...  
Keyword(s):  
Oxygen Isotope ◽  
Isotope Exchange ◽  
Volume Diffusion ◽  
Strong Dependence ◽  
Ceramic Materials ◽  
Laser Evaporation ◽  
Oxygen Isotope Exchange ◽  
Oxide Powders ◽  
Nanocrystalline Oxides

It is shown that investigations of the isotope exchange kinetics in nanocrystalline oxides allows one not only to solve problems connected with determination of process parameters and characteristic scenarios, but also to substantially extend experimental opportunities in analysis of diffusion properties of oxides. A specific behavior of the oxygen isotope exchange was studied in nanocrystalline LaMnO3 and ZrO2:Y2O3 oxides. The former oxide is characterized by very small values of oxygen volume diffusion coefficients, while the latter one is, on the contrary, an ionic conductor. The study was carried out using powdered nanomaterials prepared from original ceramic materials by grinding in planetary mills or by laser evaporation. The study revealed future trends in the use of nanomaterials for analysis of the diffusion kinetics in oxides. It is demonstrated that in this case the sensitivity of traditional isotope methods increases considerably and fundamentally new opportunities are provided for analysis of processes on the "gas phase  solid state" interface as well as for the study of volume diffusion in polycrystals. Considering a strong dependence of the isotope exchange rate on the particle size, it is also topical to conduct studies dealing, along with determination of kinetic parameters of the process, with the use of the obtained data for certification of dimensional characteristics of oxide nanopowders.

Applicability of an Isotope Exchange Method for the Determination of Milligram and Microgram Quantities of Organic Mercurials. I. Pharmaceutical and Agricultural Mercurials

1965 ◽  
Vol 48 (6) ◽  
pp. 1134-1138
Author(s):  
Sidney Davis ◽  
Alphonso Arnold
Keyword(s):  
Isotope Exchange ◽  
Mercury Determination ◽  
Exchange Method ◽  
Average Recovery ◽  
Low Levels ◽  
Standard Techniques ◽  
Isotope Exchange Method ◽  
Organic Mercurials ◽  
Exchange Technique

Abstract The isotope exchange technique was applied to the analysis of milligram and microgram quantities of organic mercurials, with emphasis on pharmaceuticals and fungicides of an agricultural nature. Average recovery was 98.48 ± 1.12% for Hg-203 in equilibrium with chemical mercury. In comparison studies, the isotope exchange procedure showed essential agreement with standard techniques for mercury determination. At low levels, traces of mercury via glassware contamination were observed to interfere. The digestion system was found to be applicable to most organic mercurials studied except ethyl mercuric phosphate and three commercial fungicides.

Oxygen isotope exchange in proton-conducting oxides based on lanthanum scandates

2019 ◽  
Vol 44 (48) ◽  
pp. 26577-26588 ◽  
Author(s):  
Andrei S. Farlenkov ◽  
Anna V. Khodimchuk ◽  
Nikita A. Shevyrev ◽  
Anna Yu. Stroeva ◽  
Andrei V. Fetisov ◽  
...  
Keyword(s):  
Oxygen Isotope ◽  
Isotope Exchange ◽  
Proton Conducting ◽  
Oxygen Isotope Exchange ◽  
Conducting Oxides

Determination of Atomic Oxygen in Atmospheric Plasma from Oxygen Isotope Exchange

2011 ◽  
Vol 8 (9) ◽  
pp. 859-866 ◽  
Author(s):  
Milko Schiorlin ◽  
Ester Marotta ◽  
Hyun-Ha Kim ◽  
Cristina Paradisi ◽  
Atsushi Ogata
Keyword(s):  
Oxygen Isotope ◽  
Isotope Exchange ◽  
Atomic Oxygen ◽  
Atmospheric Plasma ◽  
Oxygen Isotope Exchange

Oxygen isotope exchange in La2NiO4±δ

2016 ◽  
Vol 18 (13) ◽  
pp. 9102-9111 ◽  
Author(s):  
M. V. Ananyev ◽  
E. S. Tropin ◽  
V. A. Eremin ◽  
A. S. Farlenkov ◽  
A. S. Smirnov ◽  
...  
Keyword(s):  
Gas Phase ◽  
Isotope Exchange ◽  
Exchange Method ◽  
Surface Exchange ◽  
Oxygen Isotope Exchange ◽  
Exchange Kinetics ◽  
And Diffusion ◽  
Oxygen Surface Exchange ◽  
Experimental Rig ◽  
Isotope Exchange Method

Oxygen surface exchange kinetics and diffusion have been studied by the isotope exchange method with gas phase equilibration using a static circulation experimental rig in the temperature range of 600–800 °C and oxygen pressure range of 0.13–2.5 kPa.

Determination of Oxygen Pathway in Silver Cathodes by Secondary-Ion Mass Spectroscopy Using Oxygen Isotope Exchange

2011 ◽  
Vol 158 (11) ◽  
pp. B1380 ◽  
Author(s):  
Kazuya Sasaki ◽  
Minoru Muranaka ◽  
Akihiro Suzuki ◽  
Takayuki Terai
Keyword(s):  
Oxygen Isotope ◽  
Mass Spectroscopy ◽  
Isotope Exchange ◽  
Secondary Ion Mass Spectroscopy ◽  
Oxygen Isotope Exchange ◽  
Silver Cathodes ◽  
Secondary Ion

Speciative determination of phosphorus in environmental water by the isotope exchange method

1988 ◽  
Vol 122 (1) ◽  
pp. 27-33 ◽  
Author(s):  
N. Ikeda ◽  
M. Yoshikawa ◽  
S. Murakami ◽  
J. Kunika
Keyword(s):  
Isotope Exchange ◽  
Environmental Water ◽  
Exchange Method ◽  
Isotope Exchange Method

Oxide ion conductivity in Bi2W1 − xMExO6 − x/2 (ME = Nb, Ta)

1996 ◽  
Vol 91 (3-4) ◽  
pp. 243-248 ◽  
Author(s):  
N Baux
Keyword(s):  
Ion Conductivity ◽  
Oxide Ion Conductivity ◽  
Oxide Ion
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