七钼酸钠和七钼酸钡的合成、表征和稳定性评估

IF 1.6 3区工程技术 Q3 CHEMISTRY, INORGANIC & NUCLEAR

Applied Radiation and Isotopes Pub Date : 2024-08-12 DOI:10.1016/j.apradiso.2024.111473

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引用次数: 0

摘要

研究核燃料中的复杂相对于了解燃料的物理化学性质十分必要。通过简化方法制备了 Na6Mo7O24⋅14H2O (1)，并改进了其晶体结构。热降解时，1 会分解成 Na2Mo2O7 和 MoO3。此外，通过水合成路线分离出了新型 Ba3Mo7O24⋅12H2O (2)，并通过傅立叶变换红外光谱和元素分析对其进行了表征。测定了 2 的 PXRD 图样。2 的热降解表明形成了 BaMoO4、BaMo3O10、MoO3 和一种不明相。

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Synthesis, characterization, and stability assessment of sodium and barium heptamolybdates

The study of complex phases in nuclear fuels is necessary to understand the physicochemical properties of the fuel. Na₆Mo₇O₂₄⋅14H₂O (1) was prepared via a simplified method and the crystal structure was improved. Upon thermal degradation, 1 decomposes into Na₂Mo₂O₇ and MoO₃. Additionally, novel Ba₃Mo₇O₂₄⋅12H₂O (2) was isolated via an aqueous synthetic route and characterized via FTIR and elemental analysis. PXRD pattern of 2 was determined. Thermal degradation of 2 indicates formation of BaMoO₄, BaMo₃O₁₀, MoO₃, and an unidentified phase.

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来源期刊

Applied Radiation and Isotopes 工程技术-核科学技术

CiteScore

3.00

自引率

12.50%

发文量

406

审稿时长

13.5 months

期刊介绍： Applied Radiation and Isotopes provides a high quality medium for the publication of substantial, original and scientific and technological papers on the development and peaceful application of nuclear, radiation and radionuclide techniques in chemistry, physics, biochemistry, biology, medicine, security, engineering and in the earth, planetary and environmental sciences, all including dosimetry. Nuclear techniques are defined in the broadest sense and both experimental and theoretical papers are welcome. They include the development and use of α- and β-particles, X-rays and γ-rays, neutrons and other nuclear particles and radiations from all sources, including radionuclides, synchrotron sources, cyclotrons and reactors and from the natural environment. The journal aims to publish papers with significance to an international audience, containing substantial novelty and scientific impact. The Editors reserve the rights to reject, with or without external review, papers that do not meet these criteria. Papers dealing with radiation processing, i.e., where radiation is used to bring about a biological, chemical or physical change in a material, should be directed to our sister journal Radiation Physics and Chemistry.