基于向大一学生开设的“电解-量气法测定阿伏加德罗常数”实验，设计了Cu₂O的电化学合成及量气法测定阿伏加德罗常数一体化实验，该实验巧妙地融合了元素化学实验中有关Cu₂O的制备及性质实验内容。一次电解完成两个实验，节约电能，节省时间。Cu₂O的电化学合成及量气法测定阿伏加德罗常数一体化实验可作为一个微实验灵活穿插于大学基础化学实验教学中，对于培养大一学生的全方位思考的意识和多角度分析问题的能力以及经济、环保的理念有重要意义。

Herein, the positively charged two-dimensional (2D) porous silica (PSN⁺) nanosheet was obtained by modifying the 2D silica obtained from acid-etched 2D vermiculite, and then the PSN⁺ was used as the filler of polyethylene oxide (PEO)-based solid polymer electrolytes (SPEs). Given the abundant positive charges, PSN⁺ effectively binds with the anions dissociated from lithium salts, thereby promoting lithium-ion transport and achieving a decent lithium-ion transference number. At 50 ℃, the PSN⁺-based SPEs demonstrated a higher ionic conductivity of 7.5×10^-5 S·cm^-1, lithium-ion transference number of 0.30, and a stable voltage window of 4.41 V. Consequently, the as-assembled LiFePO₄||Li batteries delivered excellent initial discharge specific capacity of 155.7 mAh·g^-1 at 0.2C with 97.1% capacity retention after 100 cycles at 50 ℃.

采用高温固相法制备了LiNi_0.5Mn_1.5O₄(LNMO)，然后采用湿化学法在多面体LNMO表面涂覆AlPO₄(AP)，制备得到LNMO-AP复合材料。实验结果表明，AlPO₄与LNMO的质量比为1%时制备的LNMO-1% AP|Li电池表现出较好的电化学性能，其在1C条件下循环450次后，放电比容量为108.78 mAh·g^-1，而未涂覆AP的LNMO|Li电池的放电比容量仅为86.04 mAh·g^-1。特别是在5C和10C的高倍率条件下，前者的电化学性能远远优于后者。这归因于AP涂层使与电解液接触的LNMO表面更加稳定，有效地促进了Li⁺的传输并降低了电极的极化电压。