Interface‐Engineered Wood‐Based Composite Phase Change Materials Integrating Superhydrophobic, Flame‐Retardant, and Antimicrobial Properties for Sustainable Solar–Electric Energy Conversion

ABSTRACT Efficient and durable solar thermal utilization requires composite phase change materials (CPCMs) that integrate high photothermal efficiency, stable energy storage, and environmental robustness within a scalable architecture. However, most CPCMs rely on energy‐intensive processing or carbon‐based frameworks, hindering the simultaneous realization of multifunctionality and sustainability. Herein, a series of carbonization‐free, interface‐engineered bio‐based CPCMs are developed by functionalizing the anisotropic microchannel structure of delignified balsa wood with black phosphorene and metal‐polyphenol network (tannin‐Fe 3+ ). The hybrid interface is further in situ reduced Ag nanoparticles and…

• NN
  National Natural Science Foundation of China

  Award: 22268025
• CP
  China Postdoctoral Science Foundation

  Award: 2022MD713757