Abstract
With the current intricate application environment, extended versatility is critical to the future development of phase change materials (PCMs). Herein, we prepared a series of phase change composites (PCCs) with excellent electromagnetic interference shielding effectiveness (EMI SE) and versatile thermal management. Specifically, the hybridized multi-stage porous biological carbon base with magnetic and electrical conductivity was prepared as the substrate material for encapsulating paraffin wax (PW) by carbonizing in situ growth ZIF-67 on waste agricultural. The synergy between the functions of the porous biological carbon and PW makes the PCCs have high-performance EMI SE (44.81 dB) and high enthalpy value (175.88–229.52 J/g) at the identical time. In which CC-ZIF-3 @PW has outstanding effect in storing and releasing thermal energy for photo-thermal, magnetic-thermal and electric-thermal conversion. Unsurprisingly, the PCCs breaks innovative ground for energy storage and conversion materials with potential value in various fields such as electronic protection, deicing and thermal energy utilization.
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