СПЕКТРОСКОПІЧНІ ВЛАСТИВОСТІ ЗАСТИГЛИХ ПЛАВІВ СИСТЕМИ EuF3-CeF3-NaCl-KCl
The nature of the interaction in the EuF3-CeF3 system in the process of high-temperature (1050 °C) oxidation - reduction reaction was established by the methods of IR transmission spectroscopy, diffuse reflection spectroscopy and fluorescence spectroscopy. Here is a significant bathochromic...
Збережено в:
| Дата: | 2020 |
|---|---|
| Автори: | , , , , , , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
V.I.Vernadsky Institute of General and Inorganic Chemistry
2020
|
| Онлайн доступ: | https://ucj.org.ua/index.php/journal/article/view/244 |
| Теги: |
Додати тег
Немає тегів, Будьте першим, хто поставить тег для цього запису!
|
| Назва журналу: | Ukrainian Chemistry Journal |
Репозитарії
Ukrainian Chemistry Journal| id |
oai:ojs2.1444248.nisspano.web.hosting-test.net:article-244 |
|---|---|
| record_format |
ojs |
| spelling |
oai:ojs2.1444248.nisspano.web.hosting-test.net:article-2442020-11-23T14:43:56Z SPECTROSCOPIC PROPERTIES OF SOLIDIFIED MELTS OF THE EuF3-CeF3-NaCl-KCl SYSTEM СПЕКТРОСКОПИЧЕСКИЕ СВОЙСТВА ЗАСТЫВШИХ ПЛАВОВ СИСТЕМЫ EuF3-CeF3-NaCl-KCl СПЕКТРОСКОПІЧНІ ВЛАСТИВОСТІ ЗАСТИГЛИХ ПЛАВІВ СИСТЕМИ EuF3-CeF3-NaCl-KCl Zinchenko , Viktor Ieriomin , Oleg Antonovich , Valerii Chivireva, Nataliia Stoianova , Iryna Volchak , Ganna Doga , Pavlo spectroscopic methods, Europium and Cerium fluorides, oxidation-reduction, solidified saline melts, and luminescence The nature of the interaction in the EuF3-CeF3 system in the process of high-temperature (1050 °C) oxidation - reduction reaction was established by the methods of IR transmission spectroscopy, diffuse reflection spectroscopy and fluorescence spectroscopy. Here is a significant bathochromic shift to 480-485 nm band of blue luminescence of Eu(II) - containing phases, due to the 5d–4f electronic transitions, as well as the manifestation of orange-red luminescence of Eu(III) - containing phases due to 4f–4f electronic transitions in the range of 590–690 nm. There is a bathochromic shift of the IR bandwidth in the spectrum of the solidified salt melt as a result of dissolution of the fluoride system. Diffuse reflection spectra reveal changes in the composition of the phases that dissolve in the salt melt due to exchange reactions. The wide absorption band in the UV range gives way to a negative absorption band consisting of two peaks due to luminescence. The almost complete disappearance of the band of 4f–4f transitions in Eu(III) in the near-IR range of the spectrum is evidence of its entire reduction in the chloride melt to Eu(II). The character of the luminescence spectra of solidified salt melts also changes in comparison with the initial sample of the EuF3-CeF3 system, namely, the luminescence band of Ce3+ ions disappears, and the luminescence band of Eu2+ ions at 430–440 nm becomes narrow and highly intensive. The luminescence band of Eu3+ ions in the orange-red region of the spectrum disappears completely. Thus, Eu2+ ions become dominant in the formation of the spectral picture of the solidified salt melt, which is evidence of the completion of the redox process in the system. V.I.Vernadsky Institute of General and Inorganic Chemistry 2020-11-16 Article Article Inorganic Chemistry Неорганическая химия Неорганічна хімія application/pdf https://ucj.org.ua/index.php/journal/article/view/244 10.33609/2708-129X.86.10.2020.120-128 Ukrainian Chemistry Journal; Vol. 86 No. 10 (2020): Ukrainian Chemistry Journal; 120-128 Украинский химический журнал; Том 86 № 10 (2020): Украинский химический журнал; 120-128 Український хімічний журнал; Том 86 № 10 (2020): Український хімічний журнал; 120-128 2708-129X 2708-1281 en https://ucj.org.ua/index.php/journal/article/view/244/132 |
| institution |
Ukrainian Chemistry Journal |
| baseUrl_str |
|
| datestamp_date |
2020-11-23T14:43:56Z |
| collection |
OJS |
| language |
English |
| topic_facet |
spectroscopic methods Europium and Cerium fluorides oxidation-reduction solidified saline melts and luminescence |
| format |
Article |
| author |
Zinchenko , Viktor Ieriomin , Oleg Antonovich , Valerii Chivireva, Nataliia Stoianova , Iryna Volchak , Ganna Doga , Pavlo |
| spellingShingle |
Zinchenko , Viktor Ieriomin , Oleg Antonovich , Valerii Chivireva, Nataliia Stoianova , Iryna Volchak , Ganna Doga , Pavlo СПЕКТРОСКОПІЧНІ ВЛАСТИВОСТІ ЗАСТИГЛИХ ПЛАВІВ СИСТЕМИ EuF3-CeF3-NaCl-KCl |
| author_facet |
Zinchenko , Viktor Ieriomin , Oleg Antonovich , Valerii Chivireva, Nataliia Stoianova , Iryna Volchak , Ganna Doga , Pavlo |
| author_sort |
Zinchenko , Viktor |
| title |
СПЕКТРОСКОПІЧНІ ВЛАСТИВОСТІ ЗАСТИГЛИХ ПЛАВІВ СИСТЕМИ EuF3-CeF3-NaCl-KCl |
| title_short |
СПЕКТРОСКОПІЧНІ ВЛАСТИВОСТІ ЗАСТИГЛИХ ПЛАВІВ СИСТЕМИ EuF3-CeF3-NaCl-KCl |
| title_full |
СПЕКТРОСКОПІЧНІ ВЛАСТИВОСТІ ЗАСТИГЛИХ ПЛАВІВ СИСТЕМИ EuF3-CeF3-NaCl-KCl |
| title_fullStr |
СПЕКТРОСКОПІЧНІ ВЛАСТИВОСТІ ЗАСТИГЛИХ ПЛАВІВ СИСТЕМИ EuF3-CeF3-NaCl-KCl |
| title_full_unstemmed |
СПЕКТРОСКОПІЧНІ ВЛАСТИВОСТІ ЗАСТИГЛИХ ПЛАВІВ СИСТЕМИ EuF3-CeF3-NaCl-KCl |
| title_sort |
спектроскопічні властивості застиглих плавів системи euf3-cef3-nacl-kcl |
| title_alt |
SPECTROSCOPIC PROPERTIES OF SOLIDIFIED MELTS OF THE EuF3-CeF3-NaCl-KCl SYSTEM СПЕКТРОСКОПИЧЕСКИЕ СВОЙСТВА ЗАСТЫВШИХ ПЛАВОВ СИСТЕМЫ EuF3-CeF3-NaCl-KCl |
| description |
The nature of the interaction in the EuF3-CeF3 system in the process of high-temperature (1050 °C) oxidation - reduction reaction was established by the methods of IR transmission spectroscopy, diffuse reflection spectroscopy and fluorescence spectroscopy. Here is a significant bathochromic shift to 480-485 nm band of blue luminescence of Eu(II) - containing phases, due to the 5d–4f electronic transitions, as well as the manifestation of orange-red luminescence of Eu(III) - containing phases due to 4f–4f electronic transitions in the range of 590–690 nm. There is a bathochromic shift of the IR bandwidth in the spectrum of the solidified salt melt as a result of dissolution of the fluoride system. Diffuse reflection spectra reveal changes in the composition of the phases that dissolve in the salt melt due to exchange reactions. The wide absorption band in the UV range gives way to a negative absorption band consisting of two peaks due to luminescence. The almost complete disappearance of the band of 4f–4f transitions in Eu(III) in the near-IR range of the spectrum is evidence of its entire reduction in the chloride melt to Eu(II). The character of the luminescence spectra of solidified salt melts also changes in comparison with the initial sample of the EuF3-CeF3 system, namely, the luminescence band of Ce3+ ions disappears, and the luminescence band of Eu2+ ions at 430–440 nm becomes narrow and highly intensive. The luminescence band of Eu3+ ions in the orange-red region of the spectrum disappears completely. Thus, Eu2+ ions become dominant in the formation of the spectral picture of the solidified salt melt, which is evidence of the completion of the redox process in the system. |
| publisher |
V.I.Vernadsky Institute of General and Inorganic Chemistry |
| publishDate |
2020 |
| url |
https://ucj.org.ua/index.php/journal/article/view/244 |
| work_keys_str_mv |
AT zinchenkoviktor spectroscopicpropertiesofsolidifiedmeltsoftheeuf3cef3naclkclsystem AT ieriominoleg spectroscopicpropertiesofsolidifiedmeltsoftheeuf3cef3naclkclsystem AT antonovichvalerii spectroscopicpropertiesofsolidifiedmeltsoftheeuf3cef3naclkclsystem AT chivirevanataliia spectroscopicpropertiesofsolidifiedmeltsoftheeuf3cef3naclkclsystem AT stoianovairyna spectroscopicpropertiesofsolidifiedmeltsoftheeuf3cef3naclkclsystem AT volchakganna spectroscopicpropertiesofsolidifiedmeltsoftheeuf3cef3naclkclsystem AT dogapavlo spectroscopicpropertiesofsolidifiedmeltsoftheeuf3cef3naclkclsystem AT zinchenkoviktor spektroskopičeskiesvojstvazastyvšihplavovsistemyeuf3cef3naclkcl AT ieriominoleg spektroskopičeskiesvojstvazastyvšihplavovsistemyeuf3cef3naclkcl AT antonovichvalerii spektroskopičeskiesvojstvazastyvšihplavovsistemyeuf3cef3naclkcl AT chivirevanataliia spektroskopičeskiesvojstvazastyvšihplavovsistemyeuf3cef3naclkcl AT stoianovairyna spektroskopičeskiesvojstvazastyvšihplavovsistemyeuf3cef3naclkcl AT volchakganna spektroskopičeskiesvojstvazastyvšihplavovsistemyeuf3cef3naclkcl AT dogapavlo spektroskopičeskiesvojstvazastyvšihplavovsistemyeuf3cef3naclkcl AT zinchenkoviktor spektroskopíčnívlastivostízastiglihplavívsistemieuf3cef3naclkcl AT ieriominoleg spektroskopíčnívlastivostízastiglihplavívsistemieuf3cef3naclkcl AT antonovichvalerii spektroskopíčnívlastivostízastiglihplavívsistemieuf3cef3naclkcl AT chivirevanataliia spektroskopíčnívlastivostízastiglihplavívsistemieuf3cef3naclkcl AT stoianovairyna spektroskopíčnívlastivostízastiglihplavívsistemieuf3cef3naclkcl AT volchakganna spektroskopíčnívlastivostízastiglihplavívsistemieuf3cef3naclkcl AT dogapavlo spektroskopíčnívlastivostízastiglihplavívsistemieuf3cef3naclkcl |
| first_indexed |
2025-09-24T17:43:35Z |
| last_indexed |
2025-09-24T17:43:35Z |
| _version_ |
1849658096278831104 |