力致发光材料因其具有外力作用诱导产生发光的独特性质，其在冲击力、应力、张力或压力等作用力的传感，以及显示、照明、成像等领域具有巨大应用潜力，近年来引起了人们广泛关注。实验以二苯甲酰甲烷(DBM)、Eu(NO₃)₃和三乙胺(TEA)为原料，通过共沉淀法快速合成了离子型Eu³⁺配合物Eu(DBM)₄TEA。采用紫外-可见吸收光谱、红外吸收光谱和X射线衍射谱对配合物的结构进行表征，并测定配合物的荧光性质和力致发光性能。本实验是在现有科研成果的基础上开发的包含稀土金属有机配合物合成、产物仪器表征和产物性能模块化综合化学实验，实现了科教融合；实验原料廉价、实验操作简单，模块化的设计机动灵活，能满足基础实验、综合实验和趣味科普实验等不同层次本科教学需求；实验现象可视，有助于激发学生学习兴趣，提升学生专业认同感。

An efficient interlocking process was developed, including acid leaching, co-precipitation, and heat treatment, to regenerate waste LiNi_0.5Co_0.2Mn_0.3O₂ (NCM523) materials. DL-tartaric acid and formic acid were used as leaching systems, and the leaching efficiencies of Li, Ni, Co, and Mn reached about 98%. The leaching solution was added to the oxalic acid solution for a co-precipitation reaction, and then the regeneration of the material was realized through heat treatment. The regenerated NCM523 material exhibited an excellent layered structure and uniform elemental distribution. When employed as a cathode material for LIBs, the regenerated NCM523 exhibited a discharge-specific capacity of 168.5 mAh·g^-1 at 0.1C (18 mA·g^-1), which is comparable to the performance of fresh NCM523. Furthermore, the regenerated NCM523 demonstrated a capacity retention of 93.09% after 100 cycles at 0.5C.