Kalidasan, Balasubramanian * and Pandey, Adarsh Kumar * and Saidur, Rahman * and Mirsafi, Fatemeh S. and Mishra, Yogendra Kumar (2025) Tetrapod-engineered eutectic salt hydrate composites for advanced thermal energy storage. Journal of Energy Storage, 124. pp. 1-13. ISSN 2352-1538
Full text not available from this repository. (Request a copy)Abstract
Tetrapodal structures from zinc oxide (ZnO-T) are used as the novel nanotools for engineering the functions of phase change materials (PCMs). Eutectic phase change materials (EPCMs) based on inorganic salt hydrates offer remarkable potential for thermal energy storage (TES), due to their high latent heat capacity at tuneable operating temperatures. However, they have limitations such supercooling, low optical absorbance, and low thermal conductivity. To overcome these challenges, we present the creation of a high-performance EPCM composite based on functional zinc oxide tetrapod micro and nanostructures. Two distinct ZnO-Ts variants (ET and PT) were dispersed in a 62:38 weight ratio in a composite of sodium sulfate decahydrate (SSD) and sodium phosphate dibasic dodecahydrate (SPDD) as potential EPCM candidates. The ET ZnO-T variant had sharp tapering appendages while the PT variant had thick, uniform appendages. The developed EPCM exhibited a supercooling degree of 10.9 °C, a thermal conductivity of 0.464 W/m·K, optical absorbance of 0.16, melting temperature of 26.5 °C, and melting enthalpy of 214.1 J/g. The ZnO-T engineered EPCM demonstrated a reduction in supercooling to just 3.3 °C, a 175 % increase in optical absorbance, and a 96.5 % improvement in heat conductivity after incorporation of ZnO tetrapods. The ZnO-Ts engineered EPCMs could play potential roles towards TES sustainably.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | eutectic phase change materials; salt hydrates; zinc oxide tetrapods; thermal conductivity; thermal energy storage |
| Subjects: | T Technology > TJ Mechanical engineering and machinery |
| Divisions: | Sunway University > Faculty of Engineering and Technology [formerly School of Engineering and Technology until 14 November 2025; School of Science and Technology until 2020] > Research Centre for Nano-Materials and Energy Technology Sunway University > Faculty of Engineering and Technology [formerly School of Engineering and Technology until 14 November 2025; School of Science and Technology until 2020] > Sunway Centre for Electrochemical Energy and Sustainable Technology [formerly Graphene and Advanced 2D Materials Research Group until June 2023] |
| Depositing User: | Ms Yong Yee Chan |
| Related URLs: | |
| Date Deposited: | 04 May 2026 09:34 |
| Last Modified: | 04 May 2026 09:34 |
| URI: | http://repository.sunway.edu.my/id/eprint/3336 |
Actions (login required)
 |
View Item |