通过简便、高效、可规模化的一步高温氮化法，利用高温烧结使二氧化钛(TiO₂)粉末在转化成氮化钛(TiN)的同时形成连续的三维多孔网络，具有良好的导电性和高孔隙率。作为高效限硫载体，连续的三维多孔TiN网络不仅能有效增加电子传输路径、增强电子转移、促进离子迁移，而且能够从物理限域和化学吸附两方面对多硫化锂的穿梭效应进行强有力的限制，同时有效提高了硫的负载量。制备的高导电性、高硫负载硫正极展现出较高的放电容量和优异的循环稳定性能。

A novel one-dimensional (1D) polycarbonyl coordination polymer [Cu(BGPD)(DMA)(H₂O)]·DMA (named Cu-BD, H₂BGPD=N, N′-bis(glycinyl)pyromellitic diimide; DMA=dimethylacetamide) was synthesized, and evaluated as a cathode material for lithium - ion batteries (LIBs) for the first time. The electrochemical performance study revealed that the Cu-BD cathode exhibited better cycling stability and a specific capacity of 50 mAh·g^-1 after 100 cycles at a current density of 50 mA·g^-1. The study of the reaction mechanism for the Cu-BD electrode discloses that both BGPD^2- ligands and Cu(Ⅱ) ions may take part in the electron-transfer process during charging and discharging.

A 3D nitrogen-doped graphene/multi-walled carbon nanotube (CS-GO-NCNT) crosslinked network material was successfully synthesized utilizing chitosan and melamine as carbon and nitrogen sources, concomitant with the incorporation of multi-wall carbon nanotubes and employing freeze drying technology. The material amalgamates the merits of 1D/2D hybrid carbon materials, wherein 1D carbon nanotubes confer robustness and expedited electron transport pathways, while 2D graphene sheets facilitate rapid ion migration. Furthermore, the introduction of nitrogen heteroatoms serves to furnish additional active sites for lithium storage. When served as an anode material for lithium-ion batteries, the CS-GO-NCNT electrode delivered a reversible capacity surpassing 500 mAh·g^-1, markedly outperforming commercial graphite anodes. Even after 300 cycles at a high current density of 1 A·g^-1, it remained a reversible capacity of up to 268 mAh·g^-1.

多组分二维共轭金属有机骨架(MTV 2Dc-MOFs)是一类由多种有机配体和金属节点通过配位键周期性组装而成的新型多孔晶态材料，由于具有可预测的拓扑结构、可调的孔隙率、高电导率和高电催化活性等优点，受到了广泛关注。同时，利用多金属离子或有机配体之间的协同作用，可以有效调节材料的电化学活性和选择性，为制备新型的功能性更强的2D c-MOFs提供了新的思路和方向。在这篇短综述中，我们小结了近年来报道的具有多金属节点或有机配体构建的MTV 2D c-MOFs的研究进展，并对其设计策略(双组分和三组分)、骨架优势和面临的挑战做出了展望。

通过将纳米Bi颗粒与三维多孔碳(3DPC)材料复合制备得到Bi/3DPC复合材料，有效提高了Bi的电化学性能。3DPC作为碳框架能缓冲充放电过程中Bi的体积膨胀以及提升材料导电性，且其微孔和介孔能够增加材料的比表面积，为吸附钠离子提供活性位点。Bi和3DPC发挥协同效应，在钠离子电池中展现出良好的倍率性能和长期循环稳定性。在5 A·g^-1的电流密度下，Bi/3DPC在循环1 000圈后仍保持268.52 mAh·g^-1的比容量。

采用机械剥离法制备了2H相α-In₂Se₃[α-In₂Se₃(2H)]纳米片。通过X射线衍射(X-ray diffraction，XRD)、拉曼光谱、球差电镜和压电力显微镜对纳米片的结构和铁电性能进行详细表征，确定纳米片为具有特殊结构的α-In₂Se₃(2H)铁电材料。进一步在SiO₂/Si基片上成功构造了基于α-In₂Se₃(2H)铁电的平面四端器件，详细研究其在各个方向的光响应。结果表明，具有本征结构的α-In₂Se₃(2H)在相互垂直方向均没有光响应。在器件两端分别施加电压后，α-In₂Se₃(2H)器件在相互垂直方向均出现了明显的光响应，尤其在接近于易极化轴方向施加电压后，α-In₂Se₃(2H)器件出现了各向异性光响应。

基于Python语言实现了教学代码，通过数值计算验证了正交归一性、本征能谱、不确定关系等量子力学基本概念，可用于化学、材料等专业结构化学相关课程的教学或数值实验。本文介绍的方法可扩展至更复杂的一维体系，如简谐或非谐振动、类氢原子径向波函数求解、双势阱、多势阱等常见的化学问题。近年来在我校材料化学专业的教学实践表明，多数同学可接受所授内容并独立实现计算代码，加深了对课程内容的理解。

A novel Cu-based composite with unique three-dimensional (3D) nanoflower-like morphology and mesoporous structure (abbreviated as Cu-NF) was developed, using zeolitic imidazolate framework-67 (ZIF-67) as precursor via facile Cu ion etching, followed by low-temperature calcination strategy. The mass ratio of Cu²⁺ to ZIF-67 played a key role in morphology control. Additionally, low-temperature calcination changed the chemical components of the active sites and improved the porosity for mass transportation with the original morphology preserved. Sample Cu-NF-300, calcined at 300 ℃ displayed the best oxygen evolution reaction (OER) performance among all the samples, with a small overpotential of 347 mV in 1.0 mol·L^-1 KOH and a low Tafel slope of 93 mV·dec^-1 for OER. Significant improvement in the electrochemical activity is attributed to the 3D superstructure and low-temperature calcination activation, which offer a simple synthetic strategy for the fabrication of Cu-based electrocatalysts for OER.

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 ℃.