Li Xiaofei, Jiao Yinao, Li Yupeng, Pan Cheng, Fan Guozhi, Long Yifei, Cheng Qunpeng, Yang Haitao
Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology Wuhan 430068 China.
School of Chemical and Environmental Engineering, Wuhan Polytechnic University Wuhan 430023 China
RSC Adv. 2025 Apr 22;15(16):12713-12722. doi: 10.1039/d4ra06902a. eCollection 2025 Apr 16.
To extend the applications of phase-change materials to multiple scenarios, FeO nanoparticles were deposited on the surface of mica with a layer-like structure using a simple method, and composite phase-change materials (CPCMs) with dual-driven energy conversion performance were subsequently obtained vacuum impregnation. The addition of boron nitride (BN) and cellulose nanofibers (CNFs) endowed the CPCMs with higher thermal conductivity (0.85 W m K) and lower specific heat capacity (1.42 MJ m K), thereby constructing an effective heat transfer channel. The photothermal conversion efficiency of the CPCMs reached up to 88.36%. The magnetic FeO nanoparticles endowed the CPCMs with magnetic responsiveness, enabling the phase transition process to complete within just 112 s under a magnetic field. With a high phase-change material loading (82.65%), the CPCMs maintained excellent thermal stability during the energy conversion process. These results provide guidance for the preparation of CPCMs with multiple types of efficient energy conversion.
为了将相变材料的应用扩展到多种场景，采用一种简单的方法将FeO纳米颗粒沉积在具有层状结构的云母表面，随后通过真空浸渍获得具有双驱动能量转换性能的复合相变材料（CPCM）。氮化硼（BN）和纤维素纳米纤维（CNF）的加入赋予了CPCM更高的热导率（0.85 W m K）和更低的比热容（1.42 MJ m K），从而构建了一个有效的热传递通道。CPCM的光热转换效率高达88.36%。磁性FeO纳米颗粒赋予了CPCM磁响应性，使得在磁场作用下相变过程仅需112 s就能完成。在高相变材料负载量（82.65%）的情况下，CPCM在能量转换过程中保持了优异的热稳定性。这些结果为制备具有多种高效能量转换类型的CPCM提供了指导。
