Innovative design of microencapsulated phase change materials for thermal energy storage and versatile applications: a review

Liu, Huan; Wang, Xiaodong; Wu, Dezhen

doi:10.1039/c9se00019d

Cited by 223 publications

(122 citation statements)

References 297 publications

Supporting

Mentioning

113

Contrasting

Order By: Relevance

“…However, microPCMs have some drawbacks such as the low of thermal conductivity, the weakness of mechanical properties, and the easy leakage of PCMs. 8 According to the core-shell structure of microPCMs, the pathway of overcoming the drawbacks is mainly classified into two categories: modifying PCMs core material and modifying shell material. For the PCMs material, the high thermal conductivity particles were added to PCMs, and then the mixture was encapsulated by the shell material.…”

Section: Introductionmentioning

confidence: 99%

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

Zhao

Yang

et al. 2020

Int J Energy Res

View full text Add to dashboard Cite

Summary In order to enlarge the applications of microencapsulated phase change materials (microPCMs), the novel stearic acid (SA)@graphene oxide (GO)/melamine‐formaldehyde (MF) multifunctional superhydrophobic microPCMs were prepared with the method of condensation polymerization. We have made a systematical study of the effects of GO content on the SA@GO/MF microPCMs. The morphology and chemical composition characterizations showed the successful fabrication of microcapsules. The differential scanning calorimeter (DSC) identified that microPCMs could store latent heat energy. According to the contact angles (CA) measurement, the microPCMs displayed the water contact angle of 160.2°, which possessed the superhydrophobic property. Moreover, the self‐cleaning property of SA@GO/MF microPCMs was demonstrated by designing self‐cleaning experiment. The simulated irradiation experiment showed the good photothermal conversion performance of microPCMs. Owing to photothermal energy conversion performance and superhydrophobicity, multifunctional phase change microcapsules could have vital potentials in energy conversion and self‐cleaning.

show abstract

Section: Introductionmentioning

confidence: 99%

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

Zhao

Yang

et al. 2020

Int J Energy Res

View full text Add to dashboard Cite

show abstract

“…Shell materials are mostly made of stable, soft, and odorless polymer materials. The polymer material must be able to form a film on the surface of the core material, and has no reaction with the core material, being chemically compatible (Liu H. et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Review of Encapsulated Salt Hydrate Core-Shell Phase Change Materials

Wang

Chen

et al. 2020

KONA

View full text Add to dashboard Cite

The salt hydrate heat storage phase change material (PCM) has a promising prospect of application and has become a research hotspot because of the advantages of high thermal storage density, high thermal conductivity, moderate phase change temperature, and low price. However, some problems have restricted the application of salt hydrate heat storage materials, such as phase separation, supercooling, and corrosion of the metal container. A microencapsulated PCM using the microencapsulated technology of solid PCM coated packaging with coreshell structure composite material is an effective method to solve the above problems. In this paper, the research situations involving microencapsulated salt hydrate are analysed. This review introduces the selection of core and shell materials, compares the different preparation methods of encapsulated salt hydrate PCMs and summarizes the application fields.

show abstract

“…[7][8][9] In addition, some common polymers shell materials comprise polystyrene, 10 polyurea-formaldehyde resin, 11 melamine-formaldehyde resin, 12 polyurethane, 13 and poly (butyl acrylate). 22 In addition, using inorganic materials to encapsulate PCM has attracted more attention; there have been some reports involving the use of inorganic silica as a wall material for encapsulating PCM. Compared with the polymer shell material, inorganic shell material shows high thermal conductivity, thermal and chemical stability, and mechanical strength.…”

Section: Introductionmentioning

confidence: 99%

“…[19][20][21] All of the above methods can significantly enhance the heat transfer of the microcapsules, but it is necessary to strictly control the proportion of the inorganic components to avoid damaging the mechanical strength and sealing of the inorganic-organic shell. 22 In addition, using inorganic materials to encapsulate PCM has attracted more attention; there have been some reports involving the use of inorganic silica as a wall material for encapsulating PCM. 23,24 Microencapsulated PCM has been successfully prepared using alternative inorganic materials like CaCO 3 , TiO 2 , and graphene.…”

Section: Introductionmentioning

confidence: 99%

Phase change microcapsules with lead tungstate shell for gamma radiation shielding and thermal energy storage

et al. 2019

View full text Add to dashboard Cite

Summary Novel microencapsulated phase change materials (MEPCMs) composed of the lead tungstate (PbWO4) shell and paraffin core were designed for shielding of gamma radiation as well as thermal energy storage. Such MEPCMs were prepared via self‐assembly methods and in‐situ precipitation. The PbWO4 shell with excellent photon attenuation can give the resulting MEPCMs an acceptable gamma radiation shielding capability. The chemical composition and structure of microcapsules samples were studied by X‐ray diffractometer (XRD) and Fourier‐transform infrared spectroscopy (FTIR). The effects of different core/shell mass ratios on the surface morphology and microstructure of the MEPCMs were determined by scanning electron microscopy (SEM), energy‐dispersive spectrometer (EDS), and transmission electronic microscopy (TEM). It was confirmed that the microcapsules exhibit a distinct core‐shell structure and a perfect spherical shape. Differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) were used to present thermal stability and thermal‐storage capability of MEPCMs. A high‐purity germanium gamma spectrometer to measure the attenuation coefficient of the microcapsules for gamma rays showed that the MECPMs has good γ‐rays‐shielding property. The multifunction microcapsules in this study have great potential applications for building energy conservation as well as wearable personal protection in nuclear energy engineering.

show abstract

Innovative design of microencapsulated phase change materials for thermal energy storage and versatile applications: a review

Abstract: This review focuses on methodologies, technologies and innovative design of microencapsulated PCMs with a variety of shells for versatile applications.

Cited by 223 publications

References 297 publications

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

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

Review of Encapsulated Salt Hydrate Core-Shell Phase Change Materials

Phase change microcapsules with lead tungstate shell for gamma radiation shielding and thermal energy storage

Contact Info

Product

Resources

About