title: Facile preparation of carbon microcapsules containing phase-change material with enhanced thermal properties.
abstract: This study describes the hydrothermal synthesis of a novel carbon/palmitic acid (PA) microencapsulated phase change material (MEPCM). The field emission scanning electron microscopy (FESEM) and high resolution transmission electron microscopy (HRTEM) images confirm that spherical capsules of uniform size were formed with a mean diameter of 6.42 μm. The melting and freezing temperature were found to be slightly lower than those of pure PA with little undercooling. The composite retained 75% of the latent heat of pure PA. Thermal stability of the MEPCM was found to be better than that of pure PA. The thermal conductivity of MEPCM was increased by as much as 41% at 30°C. Due to its good thermal properties and chemical and mechanical stability, the carbon/PA MEPCM displays a good potential for thermal energy storage systems.
authors: Department of Mechanical Engineering, Advanced Material Research Center, University of Malaya, 50603 Kuala Lumpur, Malaysia.
authors: Sara
authors: S
authors: Tahan Latibari
authors: Department of Mechanical Engineering, Advanced Material Research Center, University of Malaya, 50603 Kuala Lumpur, Malaysia.
authors: Mohammad
authors: M
authors: Mehrali
authors: Department of Mechanical Engineering, Advanced Material Research Center, University of Malaya, 50603 Kuala Lumpur, Malaysia.
authors: Mehdi
authors: M
authors: Mehrali
authors: Department of Mechanical Engineering, Universiti Tenaga Nasional, 43009 Kajang, Selangor, Malaysia.
authors: Teuku Meurah Indra
authors: TM
authors: Mahlia
authors: Department of Mechanical Engineering, Advanced Material Research Center, University of Malaya, 50603 Kuala Lumpur, Malaysia.
authors: Hendrik Simon Cornelis
authors: HS
authors: Metselaar
mesh_terms: D002214:Capsules / Q000138:chemical synthesis* / Q000737:chemistry; D002244:Carbon / Q000737:chemistry*; D006358:Hot Temperature; D019308:Palmitic Acid / Q000737:chemistry; D044367:Phase Transition
chemical_list: D002214:Capsules; D019308:Palmitic Acid; D002244:Carbon