本课题针对熔盐电解技术在乏燃料后处理中应用中存在的电极材料腐蚀问题，提出和研究具有新型层状结构的MAX相材料作为电极材料在熔盐中的抗腐蚀性能和电化学稳定性的技术方案，其核心是对MAX相材料腐蚀机制及过程的探讨。理论上，MAX相材料兼有金属导电和和陶瓷抗腐蚀的优点，因而是一种理想的可用于熔盐电解的电极材料。实验上，本课题选用具有典型MAX相结构的Ti3SiC2材料为研究对象，LiCl-KCl熔盐为研究体系，采用XRD、SEM、EDS等分析手段，获取Ti3SiC2在不同温度、气氛条件下的腐蚀动力学数据，并探讨增强相对其腐蚀行为的影响。利用多种电化学方法对Ti3SiC2在熔盐中的电化学稳定性进行评估，并利用电化学阻抗谱获取腐蚀过程数据，进一步研究腐蚀机制,总结腐蚀规律,为Ti3SiC2作为熔盐电解电极材料提供理论及数据支持，最终为熔盐电解技术在乏燃料后处理中的应用积累基础数据。

Aiming at the corrosive problem of electrode materials existing in the application of molten salt electrolysis in the reprocessing of spent fuel, this issue proposes and studies a research programme in which the stratiform MAX phase materials are used as electrodes and their corrosion-resistance and electrochemical stability are studied in molten salt. The key task is the investigation of the corrosion mechanism and process. In theory, MAX phase materials are ideal electrode materials for molten salt electrolysis because they possess a combination of the merits of both the electrical conductivity of metals and the corrosion-resistance of ceramics. In experiment, Ti3SiC2, one typical MAX phase materials, are studied for its corrosion-resistance performance in LiCl-KCl molten salt in this issue. The electrochemical stability of Ti3SiC2 will also be tested by multiple electrochemical ways. The corrosion mechanism will be further discussed by the results of EIS. At last, the regular pattern of corrosion-resistance will provide the support that Ti3SiC2 are used as electrodes in theroy and exeperiment. This work will accumulate investigative basis for the application of molten salt electrolysis in the reprocessing of spent fuel.