【大学化学】doi: 10.12461/PKU.DXHX202407024
针对有机化学实验课程存在的理论知识复杂、实践过程枯燥、课程启发性弱和思政内容少等问题,我们通过链接有机化学的发展历史和生活场景故事,赋予实验课程神秘“魔法”属性,引导学生的学习兴趣和探索乐趣。构建从理论、实践、应用三个维度融合“产-学-研”的教学模式,并将“魔法”故事与育人育德的思政元素全面融合,将正确的科学观念“润物细无声”地植入学生的心中。
【大学化学】doi: 10.3866/PKU.DXHX202312059
本文对如何在航空航天特色背景下进行高分子化学课程的本研一体化教学,进行了教学探索和教学实践,建立了具有航空航天特色的层次化、模块化的高分子化学课程体系。结果表明以上教学改革在人才培养中兼顾高分子通用知识和行业专业知识,促进了具有航空航天化学专业特色的毕业生培养,在学生就业、竞赛成绩等方面成效显著。
【大学化学】doi: 10.12461/PKU.DXHX202412010
微塑料污染已成为全球环境问题,将其转化为碳量子点为污染治理提供了创新思路。本实验采用水热法和灼烧法制备碳量子点,并对其光学性能进行系统分析。同时,研究了Fe3+对碳量子点荧光效果的影响。实验内容涵盖了制备、性能分析及Fe3+检测等,操作简便,融合了有机化学与环境化学,增强了实验的趣味性与教育价值。
【大学化学】doi: 10.12461/PKU.DXHX202509083
导电水凝胶传感器因其高灵敏度和柔性特点,在智能交互领域展现出巨大的应用潜力。本实验以甲基丙烯酸为单体、MXene为导电填料,通过自由基聚合制备复合水凝胶,构建机器学习辅助的书写识别系统。实验将科研前沿与教学融合,结合跨学科设计,提升学生创新能力,同时使其深刻体会到数字化设计与智能化技术对社会发展的重要意义。
【无机化学学报】doi: 10.11862/CJIC.20230415
Two metal-organic frameworks (MOFs) containing rigid bis(triazole) ligand, namely {[Zn2(L)(TP)2(H2O)·H2O]}n (1) and [Zn(L)(HTMA)]n (2), where L=4, 4'-(3, 3'-dimethyl-(1, 1'-biphenyl)-4, 4'-diyl)bis(4H-1, 2, 4-triazole), H2TP=terephthalic acid, H3TMA=1, 3, 5-benzenetricarboxylic acid, were synthesized by using acid-base mixed ligands strategy and structurally characterized by X-ray single-crystal diffraction. Structural analysis reveals that MOF 1 displays a 3, 6-connected 2D structure with a new topological point symbol of (42·6)2(48·66·8), while MOF 2 presents a 2D sql topology structure. The catalytic studies reveal that 2 exhibits excellent catalytic activity for the cycloaddition reaction of CO2 with epoxides under mild conditions. Furthermore, 2 can be reused at least three times while maintaining its catalytic ability.
【无机化学学报】doi: 10.11862/CJIC.20250149
To develop proton-conducting materials with high hydrothermal and acid-base stability and to elucidate the proton-transport mechanism through visualized structural analysis, two new lanthanum phosphite-oxalates with 3D frameworks, designated as [La(HPO3)(C2O4)0.5(H2O)2] (La-1) and (C6H16N2)(H3O)[La2(H2PO3)3(C2O4)3(H2O)] (La-2) (C6H14N2=cis-, 6-dimethylpiperazine), were prepared by hydrothermal and solvothermal conduction, respectively. La-1 was constructed with lanthanum phosphite 2D layers and C2O42- groups, whereas La-2 was constructed with lanthanum oxalate 2D layers and H2PO3- groups. Alternating current (AC) impedance spectra indicate that the proton conductivities of both compounds could reach 10-4 S•cm-1 and remain highly durable at 75 ℃ and 98% of relative humidity (RH). Due to the abundance of H-bonds in La-2, the σ of La-2 was higher than that of La-1. La-1 exhibited excellent water and pH stability.
