Study of deoxidization process of CsI melt by the action of "Zr-Pt" galvanic couple
The course of removal of oxide ion admixtures (deoxidization) from molten cesium iodide using galvanic couple zirconium-platinum at 973 K was studied by a potentiometric method using a membrane oxygen electrode Pt(O₂)⁄YSZ (YSZ - yttria stabilized zirconia) as an indicator one for the detection of cu...
Збережено в:
| Дата: | 2016 |
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| Автори: | , , , , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
НТК «Інститут монокристалів» НАН України
2016
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| Назва видання: | Functional Materials |
| Теми: | |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/121501 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Study of deoxidization process of CsI melt by the action of "Zr-Pt" galvanic couple / V.L. Cherginets, T.P. Rebrova, Y.N. Datsko,A.L. Rebrov, P.V. Mateychenko // Functional Materials. — 2016. — Т. 23, № 4. — С. 644-649. — Бібліогр.: 9 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | The course of removal of oxide ion admixtures (deoxidization) from molten cesium iodide using galvanic couple zirconium-platinum at 973 K was studied by a potentiometric method using a membrane oxygen electrode Pt(O₂)⁄YSZ (YSZ - yttria stabilized zirconia) as an indicator one for the detection of current and equilibrium concentrations of O₂-. The running of the deoxidization in both cases is subjected to kinetics of 2nd order process with respect to O<m^>2- and the rate constant is as (3.07±0.31)·106 kg·mol⁻¹·min⁻¹·cm⁻² for the galvanic couple. Surface capacity of the galvanic couple with respect to oxide ions was estimated as 7.6·10-4 mol·cm⁻². The destruction and fixation of oxygen-containing admixtures in the case of the galvanic couple occur more intensively that in the case of pure zirconium and Zr-Pt combination is more promising agent for deep purification of growth halide melts. |
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