通过从水溶液和有机溶液系统的电沉积来快速有效地制备层
概括
直流电流沉积和分子涂层是为准备用于医疗同位素生产的层的最佳方法. 这些方法产生具有均分布的高密度涂层,这对于高效的99Mo产生至关重要.
科学领域:
- 材料科学 材料科学 材料科学
- 核化学 核化学 核化学
- 电化学 电化学 电化学
背景情况:
- 高密度的层对于生产重要医学同位素-99 (99mMo) 是必不可少的.
- 优化层制备是有效和安全的99mMo生产的关键.
- 存在各种电沉积技术,但它们对层制备的有效性需要详细的比较.
研究的目的:
- 确定准备99mMo生产的沉积层的最佳参数.
- 为了比较直流 (DC) 和脉冲电沉积方法在水和有机溶液中.
- 为了对不同层制备技术的有效性进行排名.
主要方法:
- 在水和有机 (DMF) 溶液中DC和脉冲电解和分子涂层 (DCMP,脉冲MP) 的比较.
- 使用扫描电子显微镜 (SEM),能量分散式X射线光谱 (EDS),X射线光电子光谱 (XPS),里埃转换红外光谱 (FTIR) 和X射线衍射 (XRD) 进行层的表征.
- 循环电压测量用于分析物种的电化学行为.
- 视觉MINTEQ软件模拟用于识别溶液中占主导地位的物种.
主要成果:
- DC电和DCMP被列为最有利的技术.
- 在水溶液中通过直流电沉积实现了高达3.04 mg/cm2的层,在DMF中通过DCMP达到高达6.87 mg/cm2.
- 在水溶液中观察到均的层次增长,而在DMF中则发生了岛屿式增长.
- 以UO2,U3O8的形式沉积在水溶液中,并在DMF中以UO3,UO2(OH) 2的形式沉积.
结论:
- 在水溶液中的直流电流沉积和在DMF中的直流分子涂层是准备层的优越方法.
- 溶剂和沉积技术的选择显著影响了层的形态和组成.
- 优化层制备对于有效生产99mMo用于医疗应用至关重要.
关键词:
电极定位是一种电极定位.分子涂层是指分子涂层.不钢的不钢是什么UO () 2 () CO () 3 () 3 () 4 () - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -层是层中的一个.更多相关视频
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