Document Type
Article
Publication Date
8-2024
Keywords
Phase Change Materials; Myristic acid, Sol-gel method; Nano-encapsulation; Thermal properties; Thermal management
Abstract
Myristic acid-based silica (MA/SiO2) nano-encapsulated phase change materials (NePCMs) were synthesized by the sol–gel process. Five different samples of the MA/SiO2 nanocapsules were prepared by varying the mass of the myristic acid. The nanocapsules were characterized by Fourier transform infrared spectrophotometer (FTIR), X-Ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscope (TEM), energy dispersive X-ray (EDX), and dynamic light scattering (DLS). These characterization techniques confirmed the successful encapsulation of the myristic acid inside the silica shell. The maximum latent heat was found to be 114.46 J/g for the sample which was prepared with 25 g myristic acid and 20 ml tetraethyl orthosilicate precursor material. The highest encapsulation ratio of approximately 62% was obtained in the same sample and the mean size of the nanocapsules was 597 nm. The thermal stability of these nanocapsules was assessed using the thermogravimetric analyzer (TGA) and differential scanning calorimetry (DSC) results exhibited that the thermophysical properties remained consistent after 50 heating/cooling thermal cycles indicating excellent durability of the NePCMs.
Citation
Ghufran, M., & Huitink, D. (2024). Synthesis of Silica-encapsulated Myristic Acid Phase-Change-Assisted Nanocapsules for Thermal Management Applications. Emergent Materials, 7 (4), 1429-1443. https://doi.org/10.1007/s42247-024-00719-9
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.
