“…Porous alumina (Al 2 O 3 ) foam as a supporting material was seldom studied in the past, but it has numerous advantages over other supporting materials, such as low cost, fire resistance, high specific surface area, high thermal stability, high catalytic activity, high chemical stability, low density, and nontoxicity. Therefore, porous Al 2 O 3 foams are very valuable and suitable for the synthesis of form-stable composite PCMs for energy storage. , Up to now, lots of inorganic and organic PCMs and their mixtures have been widely studied as latent heat storage materials . Among the low-temperature PCMs, paraffin has been widely used for latent heat storage applications due to its high latent heat storage capacity, self-nucleating behavior, good thermal characteristics, and chemical stability; therefore, it is feasible to use porous Al 2 O 3 foam as supporting material and paraffin as PCM material to prepare form-stable composite PCMs.…”