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Синтез та електрофізичні властивості фторидпровідних фаз Вa1-XLaXSnF4+X

Oleh Lysenko1, Roman Pshenychnyi2, Tamara Pavlenko1, Serhii Vorobiov3, Anatoliy Omelchuk1
Affiliation: 
1 V.I. Vernadsky Institute of General and Inorganic Chemistry, NAS of Ukraine, 32-34, Acad. Palladina Ave., 03680 Kyiv, Ukraine 2 Sumy State University 2, Rymskogo-Korsakova St., 40007 Sumy, Ukraine 3 Institute of Physics, Faculty of Science, P.J. Šafárik University, Park Angelinum, 9, 04013, Košice, Slovakia lysenkooleh34@gmail.com
DOI: 
https://doi.org/10.23939/chcht18.03.313
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Keywords:

Abstract: 
Встановлено, що концентраційний інтервал існування твердих розчинів гетеровалентного заміщення Вa1-xLaxSnF4+x, утворених за часткової заміни катіонів барію катіонами лантану в сполуці BaSnF4, становить 0,0<х≤0,12. Утворені фази ізоструктурні BaSnF4 мають кристалічну ґратку тетрагональної сингонії, яка відповідає просторовій групі P4/nmm. Зміна значень електропровідності й енергії її активації має екстремальний характер з максимумом для складу з вмістом катіонів лантану 0,07 м.ч. і становить 3,08∙10–3 См/см за 623 K і 5,69∙10–4 См/см за 293 K. Вікно електрохімічної стійкості синтезованих фаз оцінюється інтервалом потенціалів –1,7 ÷ +1,7В.
References: 

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