biostudies-literatureUnknown10(35)Tam Nhu NBIn 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 furtACS omega40579-40589https://www.ebi.ac.uk/biostudies/studies/S-EPMC12423973biostudies-literatureNovel Fumed Silica-Based Shape-Stabilized Phase Change Materials with Magnetically Boosted Charging Efficiency and Bi-Functional Thermotherapy Ability.PMC12423973Tien Nguyen GTuan HNAThi Duy Hanh LYen Nhi DTTam Nhu NBQue Anh NNLe Minh TPhuong HfalseNovel Fumed Silica-Based Shape-Stabilized Phase Change Materials with Magnetically Boosted Charging Efficiency and Bi-Functional Thermotherapy Ability.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 furt2025-01-01T00:00:00Z2025 Sep2026-06-03T02:28:04.175Z2026-04-23T03:10:37.89ZS-EPMC124239734094925810.1021/acsomega.5c06417