najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМО10.17586/2220-8054-2024-15-1-104-114najo-70Research ArticleCHEMISTRY AND MATERIAL SCIENCEХИМИЯ И МАТЕРИАЛОВЕДЕНИЕFluorination of Eu-doped layered yttrium hydroxides: the role of anionic compositionФторирование слоистого гидроксида иттрия, легированного европием: роль анионного составаhttps://orcid.org/0009-0007-5390-2154ЛюЧ.LiuZh.

Лю Чжаньбо

Zhanbo Liu

Shenzhen, PRC

sdbzlzb@126.comhttps://orcid.org/0000-0001-9317-1340ГолодухинаС. В.GolodukhinaS. V.

Голодухина Светлана Владимировна

Svetlana V. Golodukhina

Moscow

brightorangedandelion@gmail.comhttps://orcid.org/0000-0003-4860-4973КаменеваС. В.KamenevaS. V.

Каменева Светлана Владимировна

Svetlana V. Kameneva

Shenzhen, PRC

kamenevasvetlanav@gmail.comhttps://orcid.org/0000-0001-8166-2476ЯпрынцевА. Д.YapryntsevA. D.

Япрынцев Алексей Дмитриевич

Alexey D. Yapryntsev

Moscow

yapryntsev@igic.ras.ruShenzhen MSU-BIT UniversityRussian FederationShenzhen MSU-BIT University; Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of SciencesRussian Federation202431052025151104114Copyright © Liu Z., Golodukhina S.V., Kameneva S.V., Yapryntsev A.D., 20252025Лю Ч., Голодухина С.В., Каменева С.В., Япрынцев А.Д.Liu Z., Golodukhina S.V., Kameneva S.V., Yapryntsev A.D.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://nanojournal.ifmo.ru/jour/article/view/70

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-, nitrateand 4-sulfobenzoate-intercalated Eu-doped layered yttrium hydroxides by interaction with aqueous solutions of sodium fluoride at 100–150 ○C for 2–48 hours. The final product of fluorination in all cases is the hexagonal yttrium hydroxide fluoride (YHF) phase of NayY0.95Eu0.05(OH)3+y−xFx · mH2O (x ∼ 3, y ∼ 0.2) composition. The formation rate of the YHF increases with the interlayer spacing of the Eu-doped layered yttrium hydroxide.

Впервые проведено сравнение процессов фторирования слоистых гидроксидов РЗЭ различного анионного состава, в т.ч. интеркалированных органическими анионами. Процесс фторирования исследован для слоистого гидроксида иттрия-европия, интеркалированного хлорид-, нитрат- или 4-сульфобензоат-анионами, взаимодействием с водными растворами фторида натрия при температурах 100-150 °С в течение 2-48 ч. Конечным продуктом фторирования во всех случаях является фаза гексагонального гидроксофторида иттрия-европия состава NayY0.95Eu0.05(OH)3+y-xFx·mH2O (x~3, y~0.2). Скорость образования этой фазы возрастает с увеличением межслоевого расстояния слоистого гидроксида иттрия-европия.

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The authors declare that there are no conflicts of interest present.