RT journal article
T1 Synthesis and characterization of metal oxide-based microcapsules including phase change materials for energy storage applications
A1 Aguilar Sánchez, María Teresa
A1 Peña‑Cordero, M.D.
A1 Carrillo Berdugo, Iván
A1 Alcántara Puerto, Rodrigo
A1 Navas Pineda, Francisco Javier
A2 Química Física
K1 Phase change material
K1 Thermal energy storage
K1 Microcapsules
K1 Enthalpy
K1 Isobaric specific heat
AB In this study, microcapsules based on Cu2O containing different phase change materials (PCM) were prepared and characterized. The elemental, structural and electronic properties of the Cu2O-based microcapsules were characterized using several techniques such as X-ray diffraction, X-ray photoelectron spectroscopy, scanning and transmission electron microscopy and Fourier-transform infrared spectroscopy. In addition, the thermal properties of the microcapsules prepared were characterized in order to analyse their possible application as a thermal energy storage medium. Heating/cooling cycles using a differential scanning calorimetry technique were performed, and the phase change temperature and enthalpy were estimated. We observed good stability after the cycles. Furthermore, the encapsulation efficiency was estimated from melting and crystallization enthalpy values, reaching a value of 14.8% for the paraffin wax-based microcapsules. Finally, isobaric specific heat was measured to evaluate the storage capability of the encapsulated PCMs with regard to pure Cu2O to evaluate their possible application as a thermal storage system. An increase of around 140% was found in the isobaric specific heat for the microcapsules based on paraffin wax with regard to pure Cu2O. © 2023, The Author(s).
PB SPRINGER
SN 1588-2926
YR 2023
FD 2023
LK http://hdl.handle.net/10498/27960
UL http://hdl.handle.net/10498/27960
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 11-nov-2026