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AuthorAl-Shannaq, Refat
AuthorKurdi, Jamal
AuthorAl-Muhtaseb, Shaheen
AuthorFarid, Mohammed
Available date2021-09-01T10:04:06Z
Publication Date2016
Publication NameSolar Energy
ResourceScopus
URIhttp://dx.doi.org/10.1016/j.solener.2016.01.043
URIhttp://hdl.handle.net/10576/22539
AbstractMicroencapsulation of phase change materials (PCMs) is needed to prevent PCM leaking during melting. However, the low thermal conductivity of the microcapsules shell limits their applications. To enhance thermal conductivity of PCM microcapsules, a new method was developed for coating them with a metal using dopamine surface activation followed by electroless plating. The oxidative self-polymerization of dopamine (PDA) on the shell of the polymeric PCM microcapsules makes the surface active by providing chemisorption sites for metal deposition. Scanning electron microscope (SEM) images of the metal coated microcapsules without PDA pre-treatment did not show evidence of Ag metal on the surface of microcapsules. However, PCM microcapsules were completely covered with Ag metal when they were pre-treated with PDA as indicated by SEM and EDX tests. The enhancement in the thermal conductivity of silver coated PCM microcapsules of different size and for different silver coating coverage was investigated and discussed. This was confirmed by the enhancement in the performance of these silver-coated microcapsules using thermal cycling tests. 2016 Elsevier Ltd.
SponsorThis publication was made possible by the NPRP award [NPRP 5-093-2-034] from the Qatar National Research Fund (a member of The Qatar Foundation). The statements made herein are solely the responsibility of the authors.
Languageen
PublisherElsevier Ltd
SubjectAmines
Electroless plating
Metal coatings
Metals
Neurophysiology
Scanning electron microscopy
Silver
Thermal conductivity
Chemisorption sites
Dopamine
Low thermal conductivity
Microcapsules
Self-polymerization
Surface activation
Thermal conductivity enhancement
Thermal cycling test
Phase change materials
catalysis
coating
encapsulation
hydrocarbon
innovation
metal
phase transition
polymer
shell
silver
thermal conductivity
TitleInnovative method of metal coating of microcapsules containing phase change materials
TypeArticle
Pagination54-64
Volume Number129
dc.accessType Abstract Only


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