Peculiarities of thermal solid-phase transformations of hydrogenphosphates Co(II)-Mn(II)
Peculiarities of thermal solid-phase transformations of Co₁₋xMnxHPO₄·1.5 H₂O (0 ≤ x ≤ 0.45), which accompanying the formation of a final product of thermolysis - anhydrous diphosphate solid solution with composition β-(Co₁₋xMnx)₂P₂O₇ (0 < x le; 0.45) are established. It is shown that low-temperat...
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| Дата: | 2018 |
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| Автори: | , , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
НТК «Інститут монокристалів» НАН України
2018
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| Назва видання: | Functional Materials |
| Теми: | |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/154445 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Peculiarities of thermal solid-phase transformations of hydrogenphosphates Co(II)-Mn(II) / N.M. Antraptseva, N.V. Solod, R.S. Zhyla // Functional Materials. — 2018. — Т. 25, № 1. — С. 151-157. — Бібліогр.: 14 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | Peculiarities of thermal solid-phase transformations of Co₁₋xMnxHPO₄·1.5 H₂O (0 ≤ x ≤ 0.45), which accompanying the formation of a final product of thermolysis - anhydrous diphosphate solid solution with composition β-(Co₁₋xMnx)₂P₂O₇ (0 < x le; 0.45) are established. It is shown that low-temperature α-modification of the diphosphate is the first formed during heat treatment of the hydrogenphosphates Co₁₋xMnxHPO₄·1.5H₂O with 0 <x ≤ 0.15. Crystalline β-(Co₁₋xMnx)₂P₂O₇ (x≤0.15) is formed only after the polymorphic transformation of the α-form into the β-form. The formation of β-(Co₁₋xMnx)₂P₂O₇ with 0.15 < x ≤ 0.45 occurs bypassing the α-form. Free phosphoric acid during the heat treatment Co₁₋xMnxHPO₄·1.5H₂O (0 < x ≤ 0.45) are is not formed. |
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