Innovative design of superhydrophobic thermal energy-storage materials by microencapsulation of n-docosane with nanostructured ZnO/SiO2 shell

Multifunctional phase change microcapsules based on graphene oxide Pickering emulsion for photothermal energy conversion and superhydrophobicity

“…According to the DSC melting and crystallization curves, whether test sample is pure SA or phase change microcapsule, it can obviously be seen that one endothermic peak and exothermic peak appear in the phase transition process. Compared with pure SA, the melting temperature and crystallization temperature of all the microPCMs slightly decrease . According to Table S1 and Figure C, the melting and crystallization enthalpy of all the microPCMs are detected to reduce by about 30% because of microencapsulated SA with MF shells.…”

“…Compared with pure SA, the melting temperature and crystallization temperature of all the microPCMs slightly decrease. 36 According to Table S1 and Figure 4C, the melting and crystallization enthalpy of all the microPCMs are detected to reduce by about 30% because of To indicate the thermal reliability of the SA@GO/ MF phase change microcapsules, all the samples were heated to 80 C at a heating rate of 10 C/min and then cooled to 20 C at the same temperature rate. Next, the samples repeated the heating-cooling cycle for 100 times.…”

“…In order to further enlarge the applications field, especially nonthermal energy applications, novel multifunctional microPCMs have been designed. There are already versatile functions such as solar photocatalysis, flame‐retardant property, superparamagnetism, superhydrophobicity, and self‐cleaning property . Superhydrophobicity, the most peculiar wettability, has caused a wide concern on practical application.…”

“…There are already versatile functions such as solar photocatalysis, 30,31 flameretardant property, 32 superparamagnetism, 33 superhydrophobicity, and self-cleaning property. [34][35][36] Superhydrophobicity, the most peculiar wettability, has caused a wide concern on practical application. By the structure design of the shell layer, some research has prepared superhydrophobic microPCMs to further extend the application of microcapsules.…”

Study on the microstructures and thermal properties of SiO 2 @ NaNO 3 microcapsule thermal storage materials

“…[1][2][3] Currently, the widely used inorganic shells possess excellent thermal stability and thermophysical properties compared with organic shells. [4][5][6] Researchers try to develop inorganic shells through in-situ polymerization and interfacial polymerization methods, [7][8][9] including silicon dioxide (SiO 2 ), 10,11 zinc oxide (ZnO), 12,13 titanium dioxide (TiO 2 ), 11,14 zirconium oxide (ZrO 2 ) 15 and cuprous oxide (Cu 2 O). 16 Among these inorganic shells, SiO 2 prepared by sol-gel method shows great potential to be shell material of microcapsule composites owing to the relatively high thermal conductivity (about 1.3 W m −1 K −1 ), 17 high melting point (1650 C) and excellent thermal stability.…”