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Raman spectroscopic investigation of UCl4

IF 3.2 2区工程技术 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Journal of Nuclear Materials Pub Date : 2025-08-26 DOI:10.1016/j.jnucmat.2025.156129

Brodie S. Barth , Teagan F.M. Sweet , Avery L. Wood , Peter C. Burns , Andrew Miskowiec , Tyler L. Spano

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引用次数: 0

Abstract

Uranium chloride salts are a proposed fuel source for molten salt reactors (MSRs). However, despite their relevance to nuclear energy, they remain understudied, in part because of their air and moisture sensitivity. This work provides the first Raman spectra of UCl₄ from 45 to 3200 cm⁻¹ collected with 532 and 785 nm excitation sources as well as the assignment of 10 identified peaks to their respective vibrational modes. These Raman bands are compared to those for isostructural ThCl₄, the compositionally related UCl₃, and the computed Raman bands for UCl₄ from local vibrational mode analysis. The observed spectrum of UCl₄ is in accord with that of ThCl₄ and the computed spectra of UCl₄. We posit that the observed differences between the spectra of UCl₄ and UCl₃ are useful in differentiating these species for applications such as in situ monitoring of MSR operations.

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UCl4的拉曼光谱研究

氯化铀盐是熔盐堆（MSRs）的一种燃料来源。然而，尽管它们与核能相关，但它们仍未得到充分研究，部分原因是它们对空气和水分的敏感性。这项工作提供了UCl4在532和785 nm激发源下从45到3200 cm−1的第一个拉曼光谱，并将10个已识别的峰分配到各自的振动模式。将这些拉曼带与同结构ThCl4的拉曼带、成分相关的UCl3的拉曼带以及局部振动模态分析计算的UCl4的拉曼带进行了比较。观测到的UCl4的光谱与ThCl4的光谱和计算得到的UCl4的光谱基本一致。我们认为，UCl4和UCl3光谱之间的差异在区分这些物种的应用中是有用的，例如在MSR操作的现场监测。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Nuclear Materials

Journal of Nuclear Materials 工程技术-材料科学：综合

CiteScore

5.70

自引率

25.80%

发文量

601

审稿时长

63 days

期刊介绍： The Journal of Nuclear Materials publishes high quality papers in materials research for nuclear applications, primarily fission reactors, fusion reactors, and similar environments including radiation areas of charged particle accelerators. Both original research and critical review papers covering experimental, theoretical, and computational aspects of either fundamental or applied nature are welcome. The breadth of the field is such that a wide range of processes and properties in the field of materials science and engineering is of interest to the readership, spanning atom-scale processes, microstructures, thermodynamics, mechanical properties, physical properties, and corrosion, for example. Topics covered by JNM Fission reactor materials, including fuels, cladding, core structures, pressure vessels, coolant interactions with materials, moderator and control components, fission product behavior. Materials aspects of the entire fuel cycle. Materials aspects of the actinides and their compounds. Performance of nuclear waste materials; materials aspects of the immobilization of wastes. Fusion reactor materials, including first walls, blankets, insulators and magnets. Neutron and charged particle radiation effects in materials, including defects, transmutations, microstructures, phase changes and macroscopic properties. Interaction of plasmas, ion beams, electron beams and electromagnetic radiation with materials relevant to nuclear systems.

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