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Hierarchical magnetic porous carbonized wood composite phase change materials for efficient solar-thermal, electrothermal, and magnetothermal conversion-storage

Materials Today Communications, ISSN: 2352-4928, Vol: 37, Page: 107486
2023
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Article Description

Phase change materials (PCMs) have been extensively used to store energy and improve the utilization efficiency of thermal energy. However, their low energy conversion ability hinders the conversion and storage of thermal energy enhancement in various current energy source applications. In this work, we report a multi-energy driven based on Fe 3 O 4 magnetic carbonized wood (MCW) as a host-matrix and stearic acid (SA) as a thermal energy guest. The obtained composite PCMs can effectively respond to solar, electric, and magnetic energy due to their high conductivity and excellent magnetic properties. Thus, the composite PCMs exhibited outstanding conversion ability of solar-thermal, electrothermal, and magnetothermal conversion simultaneously. In addition, the multi-energy driven composite PCMs show excellent form stability, outstanding thermal properties, high phase-change enthalpy of 199.24 J/g, and good cycle stability. Considering the superior performance, the synthesized composite PCMs have tremendous promise in satisfying the thermal energy storage requirements in various situations.

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