Abstract
Advances in 3D phase change composites (PCCs) are progressively transforming thermal energy storage and management through enhanced thermal performance and photothermal conversion. However, the arena lacks versatile materials tailored for a diverse array of geometries. This study introduces an innovative, shape-adaptive paraffin wax (PW) based PCC with shape memory attributes which are activated by solar and thermal energies, termed CuRNFFM@PW. Inspired by heat exchanger fins, the flexible PCC is synthesized by reinforcing a carbon fiber mat (CFM) with dense, uniform copper nano-network fins, which exhibit a lattice-like structure on the carbon fibers. The CuRNFFM@PW exhibits a substantial upsurge in thermal conductivity, reaching 1.79 W m-1K-1—a 746 % increase over pure PW and a 504 % improvement compared to CMF@PW. Furthermore, the composite boasts near-perfect thermal shape recovery (nearly 100 %), a good thermal storage enthalpy of 171.1 J g-1, and robust photothermal efficiency. Collectively, these attributes herald the CuRNFFM@PW as a promising candidate in solar thermal energy storage and in the thermal regulation of uniquely shaped electronic devices.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
