Sr₂InV₃O₁₁ - New ceramic compound in Sr₂V₂O₇-InVO₄ system and its characteristic

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• 作者：Elzbieta Filipek ; ^{elafil@zut.edu.pl" class="auth_mail" title="E-mail the corresponding author} ; Agnieszka Paczesna ; Mateusz Piz
• 关键词：Sr2InV3O11 ceramic compound ; Chemical synthesis ; Phase equilibria ; System Sr2V2O7&ndash ; InVO4
• 刊名：Ceramics International
• 出版年：2016
• 出版时间：September 2016
• 年：2016
• 卷：42
• 期：12
• 页码：14148-14154
• 全文大小：938 K

文摘

A new ceramic compound of the formula Sr₂InV₃O₁₁ has been synthesized both as a result of a reaction between V₂O₅, In₂O₃, SrCO₃ mixed at the molar ratio 3:1:4 as well as in the reaction of equimolar mixture of Sr₂V₂O₇ with InVO₄. The new compound was characterized by XRD, DTA–TG, IR, SEM/EDX and UV–vis–DR methods. The results have demonstrated that Sr₂InV₃O₁₁ is practically an insulator (E_g=3.5 eV), melts incongruently at 940±5 °C and crystallizes in the triclinic system. Its unit cell parameters have been calculated. A phase diagram of Sr₂V₂O₇–InVO₄ system up to solidus line has been constructed.