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CHEMISTRY AND MATERIAL SCIENCE
Fluorination of Eu-doped layered yttrium hydroxides: the role of anionic composition
Zhanbo Liua, Svetlana V. Golodukhinaab, Svetlana V. Kamenevaa, Alexey D. Yapryntsevab a Shenzhen MSU-BIT University, Shenzhen, PRC
b Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
Аннотация:
The fluorination processes of layered rare-earth hydroxides (LRHs) intercalated with various anions, including organic ones, have been compared for the first time. The fluorination process was investigated for chloride-, nitrate- and 4-sulfobenzoate-intercalated Eu-doped layered yttrium hydroxides by interaction with aqueous solutions of sodium fluoride at 100–150$^\circ$C for 2–48 hours. The final product of fluorination in all cases is the hexagonal yttrium hydroxide fluoride (YHF) phase of Na$_y$Y$_{0.95}$Eu$_{0.05}$(OH)$_{3+y-x}$F$_x$ $\cdot$ $m$H$_2$O ($x\sim$ 3, $y\sim$ 0.2) composition. The formation rate of the YHF increases with the interlayer spacing of the Eu-doped layered yttrium hydroxide.
Ключевые слова:
layered rare-earth hydroxides (LRHs), fluorination, luminescence, ion exchange, topotactic reactions, metal hydroxyfluorides.
Поступила в редакцию: 19.12.2023 Исправленный вариант: 04.02.2024 Принята в печать: 12.02.2024
Образец цитирования:
Zhanbo Liu, Svetlana V. Golodukhina, Svetlana V. Kameneva, Alexey D. Yapryntsev, “Fluorination of Eu-doped layered yttrium hydroxides: the role of anionic composition”, Наносистемы: физика, химия, математика, 15:1 (2024), 104–114
Образцы ссылок на эту страницу:
https://www.mathnet.ru/rus/nano1252 https://www.mathnet.ru/rus/nano/v15/i1/p104
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