Abstract In the context of radioactive waste disposal in clay formations, the sorption of a number of redox sensitive radionuclides (e.g. U, Se, Tc) is controlled by the presence of Fe-containing minerals, mainly smectite ( Guimaraes et al., 2016 ), illite ( Bruggeman and Maes, 2010 ), and pyrite ( Breynaert et al., 2010 ). In the repository lifetime, oxidizing conditions will prevail during the open drift phase enhanced by ventilation followed by recovery of reducing conditions after back-filling. Thus Fe-containing minerals will be subjected to redox cycles in the course of the repository operation. In order to evaluate the sensitivity of different Fe containing minerals in the Boom Clay to changing redox conditions, Fe2+/Fe3+ partitioning was determined in various size fractions (

中文翻译：

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Boom Clay 中的 Fe 分布、氧化还原状态和电化学活性

摘要 在粘土地层中放射性废物处理的背景下，许多氧化还原敏感放射性核素（例如 U、Se、Tc）的吸附受含铁矿物（主要是蒙脱石）的存在控制（Guimaraes 等，2016 年） 、伊利石（Bruggeman 和 Maes，2010 年）和黄铁矿（Breynaert 等人，2010 年）。在储存库寿命期间，氧化条件将在通风增强的开放漂移阶段占优势，然后在回填后恢复还原条件。因此，在储存库操作过程中，含铁矿物将经受氧化还原循环。为了评估 Boom Clay 中不同含 Fe 矿物对氧化还原条件变化的敏感性，确定了不同尺寸分数的 Fe2+/Fe3+ 分配（