A unique 3D luminescent metal-organic framework, namely [Cd(L)(H₂O)_0.5]·DMF·2.5H₂O (1), where H₂L=3-(tetrazol-5-yl)triazole, has been successfully prepared and characterized. The framework has demonstrated excellent luminescence properties and structural stability in the water system. Notably, the luminescence intensity of 1 was significantly quenched by Cr(Ⅵ) (1 mL of Cr₂O₇^2- or 150 μL of CrO₄^2-, 1 mmol·L^-1), leading to the formation of an "on-off" luminescence silencing system (Cr₂O₇^2-@1), which was capable of accurately detecting Cr(Ⅵ) in the water system. The primary mechanism responsible for luminescence quenching was the Forster resonance energy transfer (FRET) process. Additionally, by removing the involvement of the FRET process, the luminescence intensity of the Cr₂O₇^2-@1 system could be restored, allowing for the highly selective and sensitive detection of ascorbic acid (AA) in water systems. Moreover, it has been demonstrated that 1 can successfully detect AA in vitamin C tablets, yielding recovery rates ranging from 98.20% to 103.33% and relative standard deviations (RSDs) ranging from 1.78% to 3.42%. Based on the findings of this experiment, a luminescent "IMPLICATION" molecular logic gate has been constructed utilizing AA and Cr(Ⅵ) as the chemical inputs, respectively.

水系钠离子电池电容器具有成本低、功率大、安全性好等优点，是下一代大规模储能系统的理想选择之一。本文采用Na_0.44MnO₂正极、活性炭(AC)负极、6 mol∙L⁻¹ NaOH电解液和廉价的不锈钢集流体构建了可充电碱性钠离子电池电容器。由于Na_0.44MnO₂正极在碱性电解液中具有较高的过充耐受性，通过首次充电时的原位过充预活化过程可以解决半钠化Na_0.44MnO₂正极和AC负极初始库伦效率低的缺点。因此，AC||Na_0.44MnO₂可充电碱性钠离子电池电容器具有优异的电化学性能，在功率密度为85 W∙kg⁻¹时，能量密度达26.6 Wh∙kg⁻¹，循环10000次后容量保持率为89%。同时，在50 ℃的高温和−20 ℃的低温也具有良好的电化学性能。这些结果表明AC||Na_0.44MnO₂可充电碱性钠离子电池电容器具备应用于大规模储能的潜力。