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Preparation of shape-stabilized phase change material by the valorization of oil palm waste: Reduced graphene oxide-activated carbon derived carbon matrix for thermal energy storage
- Source :
- BioResources. 16:96-117
- Publication Year :
- 2020
- Publisher :
- BioResources, 2020.
-
Abstract
- A shape-stabilized composite phase change material (SCPCM) made of n-nonadecane infused by capillary forces in a compressed reduced graphene oxide-activated carbon matrix (EFB(rGOAC)-M) was prepared from oil palm empty fruit bunch. The composite exhibited improved thermal properties and was used to fabricate an SCPCM by impregnation, in which the pores of the EFB(rGOAC)-M served as the support, while n-nonadecane was the central envelope. The EFB(rGOAC)-M exhibited a specific surface area of 680 m2 g-1 and an average pore size of 22 Å. The successful infiltration of n-nonadecane into the pores of EFB(rGOAC)-M was confirmed via nitrogen gas adsorption-desorption isotherms and scanning electron micrographs. According to the differential scanning calorimeter analysis, the composite SCPCM-5 exhibited melting and freezing temperatures of 37.25 °C and 25.58 °C, respectively, and an associated latent heat value of 82.72 J g-1 and -62.22 J g-1, respectively. There was no seepage during the phase change process (from solid to liquid, as the n-nonadecane was uniformly dispersed in the pores of the carbon matrix (EFB(rGOAC)-M) and held by the capillary and the surface tension forces of the carbon matrix. This innovative, inexpensive and environmentally friendly shape-stabilized phase change material could be applied for thermal energy storage applications.
- Subjects :
- Environmental Engineering
Materials science
Graphene
Composite number
Oxide
Bioengineering
Phase-change material
law.invention
Surface tension
chemistry.chemical_compound
Differential scanning calorimetry
chemistry
Chemical engineering
law
Specific surface area
medicine
Waste Management and Disposal
Activated carbon
medicine.drug
Subjects
Details
- ISSN :
- 19302126
- Volume :
- 16
- Database :
- OpenAIRE
- Journal :
- BioResources
- Accession number :
- edsair.doi...........1de349c10a547027838645e9e13d9ee9