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Fabrication and performances of microencapsulated palmitic acid with enhanced thermal properties

Alumina; Aluminum hydroxide; Aluminum oxide; Fabrication; Microencapsulation; Microstructure; Palmitic acid; Phase change materials; Saturated fatty acids; Sol-gel process; Sol-gels; Specific heat; Thermodynamic stability; Aluminum isopropoxides; Encapsulation efficiency; Enhanced thermal conductivi...

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Main Authors: Latibari S.T., Mehrali M., Mahlia T.M.I., Metselaar H.S.C.
Other Authors: 55872422100
Format: Article
Published: American Chemical Society 2023
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spelling my.uniten.dspace-224122023-05-29T14:00:49Z Fabrication and performances of microencapsulated palmitic acid with enhanced thermal properties Latibari S.T. Mehrali M. Mehrali M. Mahlia T.M.I. Metselaar H.S.C. 55872422100 55639087200 57190658824 56997615100 57218580099 Alumina; Aluminum hydroxide; Aluminum oxide; Fabrication; Microencapsulation; Microstructure; Palmitic acid; Phase change materials; Saturated fatty acids; Sol-gel process; Sol-gels; Specific heat; Thermodynamic stability; Aluminum isopropoxides; Encapsulation efficiency; Enhanced thermal conductivity; High thermal conductivity; Microencapsulated phase change material; Stability enhancement; Storage potential; Thermal effusivity; Thermal conductivity This study focuses on the synthesis of microencapsulated phase change materials (MEPCMs), consisting of a palmitic acid (PA) core within an aluminum hydroxide oxide (Al2O3�xH2O) shell, using a sol-gel method. Aluminum isopropoxide (AIP) was used as a precursor for the aluminum hydroxide oxide shell. The MEPCMs were synthesized using four different weight ratios of PA/AIP. The effects of the PA/AIP weight ratio on the encapsulation characteristics and thermal properties of the MEPCMs have been investigated. The microcapsules were spherically shaped with an average diameter of 1.689-3.730 ?m. Encapsulated PA confirmed the outstanding phase-change performance with specific heat and thermal stability enhancement. The final results suggested that the weight ratio of PA/AIP has an important effect on the morphology, encapsulation efficiency, and durability of the MEPCMs. A higher weight ratio of AIP/PA led to a smaller diameter size with enhanced thermal conductivity, thermal effusivity, and thermal stability of the MEPCMs. The thermal conductivity of PA microcapsules was considerably increased because of the fabrication of a thermally conductive aluminum hydroxide oxide shell. It can be concluded that the prepared MEPCMs employ an excellent energy storage potential because of their ideal latent heat, high thermal conductivity, and thermal stability. � 2015 American Chemical Society. Final 2023-05-29T06:00:49Z 2023-05-29T06:00:49Z 2015 Article 10.1021/ef502840f 2-s2.0-84923275075 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84923275075&doi=10.1021%2fef502840f&partnerID=40&md5=1ca539f13f6a757207da67850c55d4b7 https://irepository.uniten.edu.my/handle/123456789/22412 29 2 1010 1018 American Chemical Society Scopus
institution Universiti Tenaga Nasional
building UNITEN Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Tenaga Nasional
content_source UNITEN Institutional Repository
url_provider http://dspace.uniten.edu.my/
description Alumina; Aluminum hydroxide; Aluminum oxide; Fabrication; Microencapsulation; Microstructure; Palmitic acid; Phase change materials; Saturated fatty acids; Sol-gel process; Sol-gels; Specific heat; Thermodynamic stability; Aluminum isopropoxides; Encapsulation efficiency; Enhanced thermal conductivity; High thermal conductivity; Microencapsulated phase change material; Stability enhancement; Storage potential; Thermal effusivity; Thermal conductivity
author2 55872422100
author_facet 55872422100
Latibari S.T.
Mehrali M.
Mehrali M.
Mahlia T.M.I.
Metselaar H.S.C.
format Article
author Latibari S.T.
Mehrali M.
Mehrali M.
Mahlia T.M.I.
Metselaar H.S.C.
spellingShingle Latibari S.T.
Mehrali M.
Mehrali M.
Mahlia T.M.I.
Metselaar H.S.C.
Fabrication and performances of microencapsulated palmitic acid with enhanced thermal properties
author_sort Latibari S.T.
title Fabrication and performances of microencapsulated palmitic acid with enhanced thermal properties
title_short Fabrication and performances of microencapsulated palmitic acid with enhanced thermal properties
title_full Fabrication and performances of microencapsulated palmitic acid with enhanced thermal properties
title_fullStr Fabrication and performances of microencapsulated palmitic acid with enhanced thermal properties
title_full_unstemmed Fabrication and performances of microencapsulated palmitic acid with enhanced thermal properties
title_sort fabrication and performances of microencapsulated palmitic acid with enhanced thermal properties
publisher American Chemical Society
publishDate 2023
_version_ 1806425491028049920
score 13.214268

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