高校是培养有见识、独立思考能力和创新意识专业人才的摇篮。通过木材变磁铁的科研技能训练课程实验，提升了学生综合运用所学知识开展科学研究的能力。本实验内容不但使学生了解木材的相关知识，而且锻炼了学生独立操作科研仪器和分析谱图的能力，打开了学生在科研领域的新视野，激发了学生热爱学习和科学研究的内在动力。

A novel porous silicon composite material (pSi/Ge@Gr/CNTs) was successfully fabricated by utilizing high-energy ball milling and electrostatic assembly techniques. This material starts with a commercial Al₆₀Si₄₀ alloy as the raw material. Through a simple acid etching process, a porous silicon (pSi) matrix was produced. Germanium (Ge) was then introduced into the matrix via ball milling. Finally, with the aid of electrostatic assembly, a dual coating of graphene (Gr) and carbon nanotubes (CNTs) was achieved, endowing the material with a unique structure. The incorporation of Ge introduction effectively augments the conductivity and ion transport characteristics of pSi, substantially bolstering the reversible capacity of the entire electrode. The hybrid encapsulation with Gr and CNTs further fortifies the stability, mechanical robustness, and electrical conductivity of the electrode. When utilized as anodes in LIBs, the pSi/Ge@Gr/CNTs electrode demonstrated outstanding electrochemical performance, achieving a reversible discharge specific capacity exceeding 700 mAh·g^-1 after 100 cycles at a current density of 0.2 A·g^-1, accompanied by a remarkably enhanced rate performance.

通过加入聚苯胺(PANI)提高聚乙烯醇(PVA)水凝胶电解质的导电性，并引入纳米SiO₂，使其与PVA中的羟基形成氢键相互作用，从而改善电解质的力学性能、离子传输能力和结构稳定性。所制备的PVA/PANI/SiO₂导电水凝胶电解质表现出高的拉伸应力(15.45 MPa)、应变(516.09%)、离子迁移数(0.56)和离子电导率(0.992 mS·cm^-1)，以及宽的电化学窗口(2.56 V)。使用该电解质的对称电池可实现超过1 200 h的稳定循环且锌沉积均匀。改性后的电解质显著提升了电池的电化学和力学性能，同时增强了其循环稳定性和电化学可逆性。