Abstract
In the present study, a novel strontium titanate-myristic acid (MA) microencapsulated phase change material in three different compositions was prepared by a simple sol-gel technique with strontium titanate as the shell and MA as the core material. The X-ray diffraction, Fourier-transformed infrared spectroscopy, and energy-dispersive X-ray spectroscopy confirm the formation of SrTiO3 microencapsulated MA microcapsules. Differential scanning calorimetry analysis confirmed that among the three ratios examined, the (1:2) ratio microencapsulated MA@SrTiO3 particles had a higher melting temperature of 53.41 °C and a latent heat of fusion of 91.90 J/g in comparison to its counterparts. The encapsulation ratio of 42% and efficiency of 46% has been achieved for the (1:2) ratio sample. Thermogravimetry results revealed excellent thermal endurance and stability owing to the presence of strontium titanate shell, demonstrating that the fabricated MA@SrTiO3 has adequate potentials for thermal energy storage application.
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