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。

MoS₂/CuS composite catalysts were successfully synthesized using a one-step hydrothermal method with sodium molybdate dihydrate, thiourea, oxalic acid, and copper nitrate trihydrate as raw materials. The hydrogen production performance of MoS₂/CuS prepared with different molar ratios of Mo to Cu precursors (n_Mo∶n_Cu) as cathodic catalysts was investigated in the two-chamber microbial electrolytic cell (MEC). X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), transmission electron microscope (TEM), linear scanning voltammetry (LSV), electrochemical impedance analysis (EIS), and cyclic voltammetry (CV) were used to characterize the synthesized catalysts for testing and analyzing the hydrogen-producing performance. The results showed that the hydrogen evolution performance of MoS₂/CuS-20% (n_Mo∶n_Cu=5∶1) was better than that of platinum (Pt) mesh, and the hydrogen production rate of MoS₂/CuS-20% as a cathode in MEC was (0.203 1±0.023 7) m_H2³·m^-3·d^-1 for 72 h at an applied voltage of 0.8 V, which was slightly higher than that of Pt mesh of (0.188 6±0.013 4) m_H2³·m^-3·d^-1. The addition of a certain amount of CuS not only regulates the electron transfer ability of MoS₂ but also increases the density of active sites.

针对分析化学课程传统教学模式的痛点，以课程思政为契机，对课程实施教学改革。阐述了分析化学课程思政建设的总体思路，从重修教学大纲、重构教学内容、改革教学模式、改革课程考核方式等多方位协同进行。通过线上线下混合式教学改革，使教师的价值引领与学生的深度参与同步进行，实现知识传授、能力培养和价值塑造三位一体的培养目标。

通过循环伏安法(CV)处理泡沫镍(NF)得到羟基氧化镍(NiOOH)，并以此为前体构建了金纳米聚集体/NF复合催化剂(Au/RF100-NF，RF表示CV处理后表面粗糙化的NF)。NiOOH前体和金纳米聚集体的生成不仅增大了电极的电化学活性面积，同时又增强了电极界面的电荷转移，有利于电催化氧化甘油反应的进行。金纳米聚集体也促进了甘油C—C键的断裂，并显著降低了乳酸盐等C₃产物的法拉第效率(FE)，同时提高了乙醇酸盐和甲酸盐等C₂与C₁产物的FE。最终，通过脉冲电解方式抑制乙醇酸盐进一步转化为甲酸盐。在此条件下，Au/RF100-NF催化乙醇酸盐的FE高达约49.1%，较未预处理直接在NF上沉积金纳米颗粒制备的催化剂(Au/NF)提高了1.67倍。

To achieve efficient catalytic hydrogenation of CO₂ to formate, we employed a transmetallation strategy to develop three novel iridium(Ⅰ) complexes, which feature N-heterocyclic carbene-nitrogen-phosphine ligands (CNP) and a 1, 5-cyclooctadiene (cod) molecule: [Ir(cod)(κ³-CN^imP)]Cl (1-Cl), [Ir(cod)(κ³-CN^imP)]PF₆ (1-PF₆), and [Ir(cod)(κ³-CN^HP)]Cl (2). The ¹H NMR spectra, ³¹P NMR spectra, and high-resolution mass spectra verify the successful synthesis of these three Ir(Ⅰ)-CNP complexes. Furthermore, single-crystal X-ray diffraction analysis confirms the coordination geometry of 1-PF₆. The strong Ir—C(NHC) bond suggests that the carbene carbon plays an enhanced anchoring role to iridium due to its strong σ-donating ability, which helps stabilize the active metal species during CO₂ hydrogenation. As a result, the Ir(Ⅰ)-CNP complex exhibits remarkable activity and long catalytic lifetime for the hydrogenation of CO₂ to formate, reaching a turnover number (TON) of 1.16×10⁶ after 150 h at a high temperature of 170 ℃, which was a relatively high value among all the Ir complexes.