Nickel Foam Based Phase Change Materials with Excellent Performances

Phase change thermal storage technology is important for the efficient utilization and conversion of thermal energy resources, but problems such as easy leakage and low thermal conductivity greatly limit its application in thermal energy storage.In this study, a novel foam-based composite phase change material (CPCM) was successfully prepared by vacuum impregnation and melt blending process using n-octadecane as the phase change material, porous nickel foam as the carrier, and metal nanoparticles/carbon nanotubes (M-NPs@CNTs) as the thermally conductive fillers.The effects of the type and content of M-NPs@CNTs on the properties of CPCM were also investigated.The results show that CPCM has good shape stability, excellent thermal conductivity (2.01 W-m-1 •K -1 ) and excellent thermal energy storage capacity (182.5 J/g), and has a wide range of applications.