Enhanced Thermal Properties of Phase Change Materials through Surfactant-Functionalized Graphene Nanoplatelets for Sustainable Energy Storage
Phase change materials (PCMs) are increasingly gaining prominence in thermal energy storage due to their impressive energy storage capacity per unit volume, especially in applications with low and medium temperatures. Nevertheless, PCMs have significant limitations regarding their ability to conduct...
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my.uniten.dspace-338532024-10-14T11:17:21Z Enhanced Thermal Properties of Phase Change Materials through Surfactant-Functionalized Graphene Nanoplatelets for Sustainable Energy Storage Fikri M.A. Suraparaju S.K. Samykano M. Pandey A.K. Rajamony R.K. Kadirgama K. Ghazali M.F. 57580364400 57210569066 57192878324 36139061100 57218845246 12761486500 57948707700 graphene nanoplatelets phase change material solar energy thermal conductivity thermal energy storage Chemical stability Graphene Heat storage Nanoparticles Solar energy Storage (materials) Surface active agents Thermal conductivity Thermal cycling Thermal energy Energy storage capacity Functionalized graphene Graphene nanoplatelets Interfacial strength Lows-temperatures Medium temperature Per unit volume Sustainable energy Thermal Thermal energy storage Phase change materials Phase change materials (PCMs) are increasingly gaining prominence in thermal energy storage due to their impressive energy storage capacity per unit volume, especially in applications with low and medium temperatures. Nevertheless, PCMs have significant limitations regarding their ability to conduct and store heat, primarily due to their inadequate thermal conductivity. One potential solution for improving the thermal conductivity of PCMs involves the inclusion of nanoparticles into them. However, a recurring issue arises after several thermal cycles, as most nanoparticles have a tendency to clump together and settle at the container�s base due to their low interfacial strength and poor compatibility. To address this challenge, including surfactants such as sodium dodecylbenzene sulfonate (SDBS) has emerged as a prevalent and economically viable approach, demonstrating a substantial impact on the dispersion of carbon nanoparticles within PCMs. The foremost objective is to investigate the improvement of thermal energy storage by utilizing graphene nanoplatelets (GNP), which are dispersed in A70 PCM at various weight percentages (0.1, 0.3, 0.5, 0.7, and 1.0), both with and without the use of surfactants. The findings indicate a remarkable enhancement in thermal conductivity when GNP with surfactants is added to the PCM, showing an impressive increase of 122.26% with a loading of 1.0 wt.% compared to conventional PCM. However, when 1.0 wt.% pure GNP was added, the thermal conductivity only increased by 48.83%. Additionally, the optical transmittance of the composite containing ASG-1.0 was significantly reduced by 84.95% compared to conventional PCM. Furthermore, this newly developed nanocomposite exhibits excellent stability, enduring 1000 thermal cycles and demonstrating superior thermal and chemical stability up to 257.51 �C. Due to its high thermal stability, the composite NePCM is an ideal candidate for preheating in industrial and photovoltaic thermal (PVT) applications, where it can effectively store thermal energy. � 2023 by the authors. Final 2024-10-14T03:17:21Z 2024-10-14T03:17:21Z 2023 Article 10.3390/en16227668 2-s2.0-85177860481 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85177860481&doi=10.3390%2fen16227668&partnerID=40&md5=b8b78c7ad482cf7b905a7ad871b21586 https://irepository.uniten.edu.my/handle/123456789/33853 16 22 7668 All Open Access Gold Open Access Multidisciplinary Digital Publishing Institute (MDPI) Scopus |
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graphene nanoplatelets phase change material solar energy thermal conductivity thermal energy storage Chemical stability Graphene Heat storage Nanoparticles Solar energy Storage (materials) Surface active agents Thermal conductivity Thermal cycling Thermal energy Energy storage capacity Functionalized graphene Graphene nanoplatelets Interfacial strength Lows-temperatures Medium temperature Per unit volume Sustainable energy Thermal Thermal energy storage Phase change materials |
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graphene nanoplatelets phase change material solar energy thermal conductivity thermal energy storage Chemical stability Graphene Heat storage Nanoparticles Solar energy Storage (materials) Surface active agents Thermal conductivity Thermal cycling Thermal energy Energy storage capacity Functionalized graphene Graphene nanoplatelets Interfacial strength Lows-temperatures Medium temperature Per unit volume Sustainable energy Thermal Thermal energy storage Phase change materials Fikri M.A. Suraparaju S.K. Samykano M. Pandey A.K. Rajamony R.K. Kadirgama K. Ghazali M.F. Enhanced Thermal Properties of Phase Change Materials through Surfactant-Functionalized Graphene Nanoplatelets for Sustainable Energy Storage |
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Phase change materials (PCMs) are increasingly gaining prominence in thermal energy storage due to their impressive energy storage capacity per unit volume, especially in applications with low and medium temperatures. Nevertheless, PCMs have significant limitations regarding their ability to conduct and store heat, primarily due to their inadequate thermal conductivity. One potential solution for improving the thermal conductivity of PCMs involves the inclusion of nanoparticles into them. However, a recurring issue arises after several thermal cycles, as most nanoparticles have a tendency to clump together and settle at the container�s base due to their low interfacial strength and poor compatibility. To address this challenge, including surfactants such as sodium dodecylbenzene sulfonate (SDBS) has emerged as a prevalent and economically viable approach, demonstrating a substantial impact on the dispersion of carbon nanoparticles within PCMs. The foremost objective is to investigate the improvement of thermal energy storage by utilizing graphene nanoplatelets (GNP), which are dispersed in A70 PCM at various weight percentages (0.1, 0.3, 0.5, 0.7, and 1.0), both with and without the use of surfactants. The findings indicate a remarkable enhancement in thermal conductivity when GNP with surfactants is added to the PCM, showing an impressive increase of 122.26% with a loading of 1.0 wt.% compared to conventional PCM. However, when 1.0 wt.% pure GNP was added, the thermal conductivity only increased by 48.83%. Additionally, the optical transmittance of the composite containing ASG-1.0 was significantly reduced by 84.95% compared to conventional PCM. Furthermore, this newly developed nanocomposite exhibits excellent stability, enduring 1000 thermal cycles and demonstrating superior thermal and chemical stability up to 257.51 �C. Due to its high thermal stability, the composite NePCM is an ideal candidate for preheating in industrial and photovoltaic thermal (PVT) applications, where it can effectively store thermal energy. � 2023 by the authors. |
| author2 |
57580364400 |
| author_facet |
57580364400 Fikri M.A. Suraparaju S.K. Samykano M. Pandey A.K. Rajamony R.K. Kadirgama K. Ghazali M.F. |
| format |
Article |
| author |
Fikri M.A. Suraparaju S.K. Samykano M. Pandey A.K. Rajamony R.K. Kadirgama K. Ghazali M.F. |
| author_sort |
Fikri M.A. |
| title |
Enhanced Thermal Properties of Phase Change Materials through Surfactant-Functionalized Graphene Nanoplatelets for Sustainable Energy Storage |
| title_short |
Enhanced Thermal Properties of Phase Change Materials through Surfactant-Functionalized Graphene Nanoplatelets for Sustainable Energy Storage |
| title_full |
Enhanced Thermal Properties of Phase Change Materials through Surfactant-Functionalized Graphene Nanoplatelets for Sustainable Energy Storage |
| title_fullStr |
Enhanced Thermal Properties of Phase Change Materials through Surfactant-Functionalized Graphene Nanoplatelets for Sustainable Energy Storage |
| title_full_unstemmed |
Enhanced Thermal Properties of Phase Change Materials through Surfactant-Functionalized Graphene Nanoplatelets for Sustainable Energy Storage |
| title_sort |
enhanced thermal properties of phase change materials through surfactant-functionalized graphene nanoplatelets for sustainable energy storage |
| publisher |
Multidisciplinary Digital Publishing Institute (MDPI) |
| publishDate |
2024 |
| _version_ |
1814061027000582144 |
| score |
13.222552 |