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Facile synthesis and thermal performances of stearic acid/titania core/shell nanocapsules by sol-gel method

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dc.citedby65
dc.contributor.authorTahan Latibari S.en_US
dc.contributor.authorMehrali M.en_US
dc.contributor.authorMehrali M.en_US
dc.contributor.authorAfifi A.B.M.en_US
dc.contributor.authorMahlia T.M.I.en_US
dc.contributor.authorAkhiani A.R.en_US
dc.contributor.authorMetselaar H.S.C.en_US
dc.contributor.authorid55872422100en_US
dc.contributor.authorid55639087200en_US
dc.contributor.authorid57190658824en_US
dc.contributor.authorid56608828400en_US
dc.contributor.authorid56997615100en_US
dc.contributor.authorid55865059900en_US
dc.contributor.authorid57218580099en_US
dc.date.accessioned2023-05-29T06:00:16Z
dc.date.available2023-05-29T06:00:16Z
dc.date.issued2015
dc.descriptionChemical stability; Encapsulation; Heat storage; Nanocapsules; Sol-gel process; Sol-gels; Stearic acid; Thermal conductivity; Titanium; Titanium dioxide; Chemical interactions; Controlled synthesis; Encapsulation efficiency; Nano-encapsulation; Phase change property; Stability and reliabilities; Thermal Performance; Titanium tetraisopropoxide; Phase change materials; encapsulation; experimental study; fatty acid; gel; oxide; performance assessment; pH; stabilization; temperature effect; thermal conductivity; weighten_US
dc.description.abstractIn order to improve the thermal properties of PCMs (phase change materials), in this study, a new series of NEPCMs (nanoencapsulated phase change materials) were synthesized using a sol-gel method with SA (stearic acid) as the core and TiO2 (titania) as the shell material. The effects of the weight ratios of the SA/titania precursor TTIP (titanium tetraisopropoxide) on the morphology, thermal performance and thermal conductivity of the prepared nanocapsules are discussed. The experimental results indicate that the SA was encapsulated in spheres with minimum and maximum diameters of 583.4 and 946.4 nm, at encapsulation ratios between 30.36% and 64.76%. The results indicated that there was no chemical interaction between the core and shell materials, SA and TiO2, which were compatible with each other under controlled synthesis conditions of pH 10. The NEPCMs with high mass ratios of SA/TTIP exhibited enhanced phase change properties and higher encapsulation efficiencies but lower thermal conductivities than NEPCMs with low mass ratios. Good thermal reliability and chemical stability of the NEPCMs were obtained by cycling the material through 2500 melting/solidifying cycles. In conclusion, the outstanding thermal stability and reliability of the prepared nanocapsules make these materials appropriate phase change materials for thermal energy storage applications. � 2015 Elsevier Ltd.en_US
dc.description.natureFinalen_US
dc.identifier.doi10.1016/j.energy.2015.04.008
dc.identifier.epage644
dc.identifier.scopus2-s2.0-84929509078
dc.identifier.spage635
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84929509078&doi=10.1016%2fj.energy.2015.04.008&partnerID=40&md5=a4ac5d23fdece95941622be66252a6d6
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/22331
dc.identifier.volume85
dc.publisherElsevier Ltden_US
dc.sourceScopus
dc.sourcetitleEnergy
dc.titleFacile synthesis and thermal performances of stearic acid/titania core/shell nanocapsules by sol-gel methoden_US
dc.typeArticleen_US
dspace.entity.typePublication
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