Novel Fumed Silica-Based Shape-Stabilized Phase Change Materials with Magnetically Boosted Charging Efficiency and Bi-Functional Thermotherapy Ability.

ABSTRACT: In this work, 1-octadecanol (OD) was combined with fumed silica (F-SiO₂) and Fe₃O₄ nanoparticles to form OD/F-SiO₂/Fe₃O₄ shape-stabilized phase change materials (SSPCMs) with low thermal conductivities (TCs) and magnetically boosted charging efficacy. The SSPCMs were studied with varying OD contents of 50-80% and Fe₃O₄ contents of 5.0-12.5%. F-SiO₂ possessed a suitable porosity to stabilize up to 70% OD without liquid leakage. The 70% OD/F-SiO₂/Fe₃O₄ SSPCM exhibited a high heat storage capacity of 147.6 J/g and excellent durability after 500 accelerated thermal cycles. In comparison to pure OD with a low TC of 0.284 W/(m·K), those of 50-70% OD SSPCMs were furt

SUBMITTER: Tam Nhu NB 

PROVIDER: S-EPMC12423973 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature