制备无毒的ZnGa₂O₄:Bi³⁺荧光材料，其同时具备可调多色荧光、动态光致变色及热致变色的三模式发光性质。我们利用这种类似“变色龙”的荧光特性设计了三种信息安全实施方案，实验互动性强且具有趣味性，有良好的科普实践展示效果，有助于激发学生对化学学科的学习热情，进而帮助青少年体会“美丽化学”的丰富内涵。

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 ℃.

通过加入聚苯胺(PANI)提高聚乙烯醇(PVA)水凝胶电解质的导电性，并引入纳米SiO₂，使其与PVA中的羟基形成氢键相互作用，从而改善电解质的力学性能、离子传输能力和结构稳定性。所制备的PVA/PANI/SiO₂导电水凝胶电解质表现出高的拉伸应力(15.45 MPa)、应变(516.09%)、离子迁移数(0.56)和离子电导率(0.992 mS·cm^-1)，以及宽的电化学窗口(2.56 V)。使用该电解质的对称电池可实现超过1 200 h的稳定循环且锌沉积均匀。改性后的电解质显著提升了电池的电化学和力学性能，同时增强了其循环稳定性和电化学可逆性。