李正名院士是我国著名的教育家、化学家和农药学家。在李先生逝世3周年之际，李正名奖学金捐赠暨首届颁奖仪式在南开大学举行。本文结合一部分典型的具体事例，对李正名先生的教育家精神和科学家精神进行了介绍，从中折射出他始终如一的坚定爱国信念和无私奉献精神。青年学子通过学习李先生的光辉事迹，可以深入了解老一辈科学家浓厚的家国情怀。本文有助于激励当代大学生厚植爱国主义理想与信念，增强自主创新意识和能力，立志为中华民族的伟大复兴贡献自己的全部力量。

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。

为进一步让学生理解“双碳”战略，本实验教学设计从可重复加工橡胶材料出发。首先，用1,4-苯二硼和(3-巯丙基)三乙氧基硅烷反应得到了一种新型交联剂(B-KH580)；其次，将B-KH580与丁苯橡胶(SBR)共混；最后，160 °C热压成型得到硼酸酯键交联的SBR。由于该橡胶材料中含有大量的可发生可逆易位反应的可逆动态共价键硼氧键(—B—O—)，从而使其表现出良好的可重复加工性能，橡胶经过重复加工后拉伸强度可以恢复到95%以上，断裂伸长率可以恢复到84%以上，杨氏模量可以恢复到87%以上。通过该实验教学，不仅可以将最新的科研进展引入到课堂实验教学中，同时可以让学生更加直观地明晰“双碳”战略。