Carbon nanotube-enhanced double-walled phase-change microcapsules for thermal energy storage

Huang, Yitian; Zhang, He; Wan, Xuejuan; Chen, Dazhu; Chen, Xuefei; Ye, Xing; Ouyang, Xiaoying; Qin, Siyin; Wen, Haixia; Tang, Jiaoning

doi:10.1039/c6ta09712j

Cited by 94 publications

(37 citation statements)

References 57 publications

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“…Because of the excellent barrier performance of the double shell, it can effectively deal with the leakage problem and improve the mechanical properties. Huang and his coworkers researched the microPCMs with double shell MF/CNT via layer‐by‐layer self‐assembly technique. This work suggested that the average hardness and the Young modulus of microPCMs were enhanced distinctly.…”

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

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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.

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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

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“…These techniques cannot produce the microcapsules with mean size diameter smaller than 100 μm. The chemical methods are categorized into the interfacial polymerization, in situ polymerization, simple or complex coacervation, layer‐by‐layer assembly, internal phase separation, emulsion polymerization, and suspension polymerization …”

Section: Introductionmentioning

confidence: 99%

Material encapsulation in poly(methyl methacrylate) shell: A review

Ahangaran

Navarchian

Picchioni

2019

J of Applied Polymer Sci

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Material encapsulation is a relatively new technique for coating a micro/nanosize particle or droplet with polymeric or inorganic shell. Encapsulation technology has many applications in various fields including drug delivery, cosmetic, agriculture, thermal energy storage, textile, and self-healing polymers. Poly(methyl methacrylate) (PMMA) is widely used as shell material in encapsulation due to its high chemical stability, biocompatibility, nontoxicity, and good mechanical properties. The main approach for micro/nanoencapsulation of materials using PMMA as shell comprises emulsion-based techniques such as emulsion polymerization and solvent evaporation from oilin-water emulsion. In the present review, we first focus on the encapsulation techniques of liquid materials with PMMA shell by analyzing the effective processing parameters influencing the preparation of PMMA micro/nanocapsules. We then describe the morphology of PMMA capsules in emulsion systems according to thermodynamic relations. The techniques to investigation of mechanical properties of capsule shell and the release mechanisms of core material from PMMA capsules were also investigated.

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“…Using organic polymeric shell materials exhibit the lower thermal conductivity, which reduce the rate of heat transfer during thermal energy storage and release. However, coating of inorganic nanomaterials such as Fe 2 O 3 , TiO 2 , SiO 2 , GNPs, Al 2 O 3 , CaCO 3 , Cu 2 O, and MWCNTs increases the heat transfer rate during operation. Although the higher thermal conductivity has been achieved, however, the decrease in latent heat of phase change enthalpy observed.…”

Section: Characteristics Evaluation Techniques Of Epcmsmentioning

confidence: 99%

“…Zheng et al evaluated the highest elastic modulus of CNTs coated n ‐eicosane microcapsules. Huang et al evaluated the surface profile of CNTs coated n ‐octadecane microcapsules and obtained the average roughness and root mean square roughness with CNTs, which were 17.12 nm and 21.09 nm, respectively, approximately three times that of microcapsules without A‐CNTs/PSS multilayers.…”

Section: Characteristics Evaluation Techniques Of Epcmsmentioning

confidence: 99%

The micro‐/nano‐PCMs for thermal energy storage systems: A state of art review

et al. 2019

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Summary With advancement in technology—nanotechnology, various thermal energy storage (TES) materials have been invented and modified with promising thermal transport properties. Solid‐liquid phase change materials (PCMs) have been extensively used as TES materials for various energy applications due to their highly favourable thermal properties. The class of PCMs, organic phase change materials (OPCMs), has more potential and advantages over inorganic phase change materials (IPCMs), having high phase change enthalpy. However, OPCMs possess low thermal conductivity as well as density and suffer leakage during the melting phase. The encapsulation technologies (ie, micro and nano) of PCMs, with organic and inorganic materials, have a tendency to enhance the thermal conductivity, effective heat transfer, and leakage issues as TES materials. The encapsulation of PCMs involves several technologies to develop at both micro and nano levels, called micro‐encapsulated PCMs (micro‐PCM) and nano‐encapsulated PCMs (nano‐PCM), respectively. This study covers a wide range of preparation methods, thermal and morphological characteristics, stability, applications, and future perspective of micro‐/nano‐PCMs as TES materials. The potential applications, such as solar‐to‐thermal and electrical‐to‐thermal conversions, thermal management, building, textile, foam, medical industry of micro‐ and nano‐PCMs, are reviewed critically. Finally, this review paper highlights the emerging future research paths of micro‐/nano‐PCMs for thermal energy storage.

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Carbon nanotube-enhanced double-walled phase-change microcapsules for thermal energy storage

Abstract: Carbon nanotube-incorporated double-walled phase-change microcapsules with excellent thermal and mechanical properties were realized via a facile layer-by-layer self-assembly technique.

Cited by 94 publications

References 57 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

Material encapsulation in poly(methyl methacrylate) shell: A review

The micro‐/nano‐PCMs for thermal energy storage systems: A state of art review

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