New solid solution Pb2鈭?/sub>xSrxFeV3O11 - Synthesis, homogeneity range and characterization
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- 作者：A. Blonska-Tabero ; E. Filipek
- 关键词：Solid solution Pb2&minus ; xSrxFeV3O11 ; Solid state reactions ; XRD ; DTA ; IR ; SEM/EDX
- 刊名：Journal of Alloys and Compounds
- 出版年：25 February, 2014
- 年：2014
- 卷：587
- 期：Complete
- 页码：148-152
- 全文大小：985 K
文摘
A substitutional solid solution Pb2鈭?/sub>xSrxFeV3O11 with homogeneity range from x > 0 to x < 1.4, a good candidate to be a new component of catalysts for oxidative dehydrogenation of organic compounds, has been obtained by the solid state reaction method. It has been characterised by XRD, DTA, IR and SEM/EDX techniques. The new phase crystallizes in the monoclinic system and its unit cell volume and density decrease with increasing amount of Sr2+ ions incorporated into the crystal lattice of the matrix. Pb2鈭?/sub>xSrxFeV3O11 melts at temperatures from the range 650-700 卤 5 掳C, depending on the composition. With increasing strontium content in the new phase, a slight shift of the recorded IR absorption bands towards higher wave-numbers is observed.