H ₂ TiO ₃ (HTO) is considered to be one of the most promising adsorbents for lithium recovery from aqueous lithium resources duo to its highest theoretical adsorption capacity.

A simple and practical spray method is employed to prepare a PVDF/PFOTES-SiO₂ superhydrophobic composite coating on the AZ31B Mg alloy substrate. The morphology, composition, and water contact angle (CA) were measured by Fourier transform infrared spectroscopy (FTIR), field emission scanning electron microscope (FESEM) and contact angle measuring instrument. Hydrophilic nano-SiO₂ is modified by PFOTES to obtain hydrophobicity. The influence of the mass of PFOTES-SiO₂ to PVDF on the hydrophobic properties was studied. The wear resistance and stability of the composite coating have been investigated by immersion test, cross-cut adhesion test and friction test. Additionally, the corrosion resistance was measured by electrochemical workstation and salt spray corrosion test. The CA of PVDF/PFOTES-SiO₂ coating is 161.3° and the sliding angle (SAs) is less than 2°. After 10× the sandpaper friction test, the superhydrophobic contact angle of the coating remained above 155°, and the sliding angle was less than 5°, which indicated that the prepared coating is a strong superhydrophobic coating with good wear resistance. The results of the electrochemical tests show that the superhydrophobic coating improved the anti-corrosion performance of Mg alloy, and the water contact angle is greater than 150° after 168 h salt spray corrosion test. Due to its excellent superhydrophobicity, wear resistance and anti-corrosion properties, the robust PVDF/PFOTES-SiO₂ coating is considered to have great potential for future applications in the automotive and marine industries.

Solid–liquid phase change materials (PCMs), when used as solvents in organic thermochromic composite systems, often suffer from leakage issues, which degrade their reversible color‐changing capability. Although encapsulation and porous composite shape‐stabilization techniques can enhance the structural integrity of PCMs, these methods are often complex, limited to lab‐scale production, and costly. Hereby, a facile eutectic strategy is presented to develop leakage‐free PCMs for stabilizing organic thermochromic composites by integrating organic lauric acid (LA) and inorganic sodium acetate trihydrate (SAT). Molecular dynamics simulations reveal significantly enhanced intermolecular interactions between SAT and LA compared to those between LA molecules. These strengthened intermolecular interactions endow the SAT/LA eutectic with excellent shape stability, preventing leakage and phase separation. Benefiting from the superior properties of the SAT/LA eutectic, the resulting thermochromic composites exhibit outstanding shape stability, cyclically reversible thermochromic performance, and considerable latent heat capacity. Leveraging these advantages, applications in temperature indicators, thermally regulated quick response codes, information encryption, and data storage/disguise are successfully demonstrated. This work, guided by molecular dynamics simulations, offers a promising approach to designing industrial‐scale, cost‐effective, shape‐stabilized thermochromic materials for temperature indication and information encryption.

锂及其化合物广泛应用于日常生活中，如锂离子电池、润滑剂、核工业、制冷剂等。现有的锂储量越来越不能满足人们的使用。因此，从矿石、盐湖卤水和海水中提取锂资源具有重要意义。由于从矿石中提取锂存在消耗大量能源，成本高，污染环境等问题，锂资源的提取逐渐转向液态锂源—盐湖卤水、海水等含锂溶液。国内外研发人员对从液态锂源中提取锂进行了大量的研究。尖晶石锰吸附剂（LMO）因其独特的结构和对Li⁺的高选择性被广泛应用于锂的萃取。文章从尖晶石锰锂离子筛的结构、制备方法、成型、酸处理、Li⁺在尖晶石LiMn₂O₄中的包埋机理以及掺杂其他离子对LMO的掺杂改性等方面综述了尖晶石锰锂离子筛提取锂的研究进展，指出了尖晶石锰离子筛在提锂中的应用存在的问题，并对尖晶石锰吸附剂的改进进行了展望。