在定义改进的Am3+和Cm3+分离时,用diglycolamides来定义连接物结构和稀释剂性质:一种联合溶剂提取和DFT研究
A S Kanekar1, A Bhattacharyya1, P K Mohapatra1
1Radiochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400085, India. arun12@barc.gov.in.
Dalton transactions (Cambridge, England : 2003)
|February 28, 2024
概括
这项研究研究了使用dwglycolamide配体对美 (Am3+) 和奇 (Cm3+) 的分离. 由于的差异,T2EHDGA与SO3PhBTP显示Am3+与Cm3+之间的边际选择性.
科学领域:
- 核化学是核化学的基础.
- 放射化学 放射化学是指辐射化学.
- 分离科学 分离科学
背景情况:
- Am3+和Cm3+的分离对于核燃料再加工至关重要.
- 现有的用于Am/Cm分离的配体有局限性.
- 为了高效的Am/Cm分离,需要新的配体.
研究的目的:
- 评估二甲基胺配体,特别是TODGA和T2EHDGA,用于Am3+/Cm3+分离.
- 为了评估这些配体与水友性SO3PhBTP衍生物结合的疗效.
- 了解Am3+/Cm3+分离选择性的热力学基础.
主要方法:
- 液体-液体提取实验使用酸介质进行.
- 进行了温度依赖性研究以确定热力学参数.
- 计算研究被用来分析提取机制.
主要成果:
- T2EHDGA与SO3结合使用,PhBTP对Am3+比Cm3+具有边际选择性.
- 观察到的选择性归因于提取时变化的差异.
- 实验和计算数据都支持了这些发现.
结论:
- T2EHDGA和SO3PhBTP为Am3+/Cm3+分离提供了一个潜在的,尽管有限的解决方案.
- 对Am3+而不是Cm3+的选择性提取起着重要的作用.
- 为了改善Am/Cm分离,需要对连接体设计进行进一步的研究.
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