Synthesis and properties of high thermal conductivity Ag shell-coated phase change materials

Yuan, Huanmei; Bai, Hao; Chen, Hao; Zhang, Zefei; An, Haifei; Tian, Weijian

doi:10.1016/j.renene.2021.07.025

Cited by 21 publications

(4 citation statements)

References 37 publications

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“…Nickel could improve the thermal conductivity and heat capacity/density in previous studies on organic PCMs. 43 The present thermal properties of the prepared phase change material composite PCSM are comparable with that in previous reports, as shown in Table 3. Ag NPs increased the thermal energy transfer property and enhanced the heat capacity absorption of the composite PCSMs simultaneously.…”

Section: Resultssupporting

confidence: 91%

Healable supramolecular micelle/nano-encapsulated metal composite phase change material for thermal energy storage

Muhabie

2023

RSC Adv.

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Section: Resultssupporting

confidence: 91%

Healable supramolecular micelle/nano-encapsulated metal composite phase change material for thermal energy storage

Muhabie

2023

RSC Adv.

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“…However, the DSSPCM and DSSPCCs retained their original shape without any liquid leakage, indicating the cross-linked network solved the leakage problem completely. Different from most of the reported leakproof phase change composites which rely on the physical interaction between SLPCMs and the 3D-skeleton − or the encapsulation of the hybrid shell, − our DSSPCCs restrict the movement of molten PEG via chemically bonding PEG into a cross-linked polymeric skeleton which is expected to fundamentally solve the leakage problem.…”

Section: Results and Discussionmentioning

confidence: 91%

Thermal-Conductive, Dynamic Cross-Linked Solid–Solid Phase Change Composites toward Sustainable Energy Utilization

Huang

Ning

Yang

et al. 2022

Ind. Eng. Chem. Res.

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Phase change composites (PCCs) integrated with leakproof characteristics, high thermal conductivity, and excellent photoabsorption ability have been proven to be of great use in many fields. However, the real-life application of most of the reported PCCs remains challenging due to their strong fragility and inferior mechanical performance. Meanwhile, solid−solid phase change materials (SSPCMs) based on molecularly engineered structures exhibit intrinsic flexibility but lack thermal conductive and photoabsorption ability. So, it is significative and critical to combine the merits of SSPCMs and PCCs for the real-life application. Herein, we introduced PEG8K and graphene nanoplates (GNPs) into a dynamic cross-linked polymeric skeleton to yield dynamic SSPCM-based composites (DSSPCCs). The fabricated DSSPCCs underwent a leak-free phase change process with a high enthalpy value (93.74 J/g) and showed excellent stability and mechanical flexibility. Meanwhile, the DSSPCC with 3 wt % GNPs exhibited higher thermal conductivity (1.071 W•m −1 K −1 ) than other reported SSPCM-based composites and excellent photo-to-thermal conversion ability (temperature reached 120 °C within 65 s under near-infrared irradiation). Moreover, our DSSPCCs possessed outstanding recyclability and solid-state plasticity, originating from the dynamic feature of urethane bonds. The excellent comprehensive properties of the DSSPCCs guarantee they are suitable to be used as various thermal interface materials, thermal energy storage units, and energy saving building materials.

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“…Compared to microcapsules with a large particle size and nanocapsules with strong inter-particle interactions, sub-microcapsules can broaden the application fields of PCMs due to the medium particle size. However, phase change sub-microcapsules (PCMCs) are usually prepared by emulsion polymerization, interface polymerization, miniemulsion polymerization, and in situ polymerization with the help of the ultrasonic treatment and high-speed (>1000 rpm) homogenization. − Therefore, it is still a great challenge to prepare PCMCs by a simple, robust polymerization method without the ultrasonic treatment and high-speed (>1000 rpm) homogenization and to functionalize PCMCs with additional functional coatings for further broadening the potential applications.…”

Section: Introductionmentioning

confidence: 99%

Robust, Versatile Access to Quasi-Monodispersed Phase Change Sub-Microcapsules via Ab Initio Emulsion Polymerization

Ding

Liu

Zhao

et al. 2023

ACS Sustainable Chem. Eng.

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The phase change sub-microcapsules (PCMCs) with the particle size of 100 nm to 1 μm have a great application potential in the field of hybrid materials for solar energy storage, while the preparation of PCMCs remains challenging without ultrasonic treatment and high-speed (>1000 rpm) homogenization. Herein, PCMCs with readily tunable phase change properties are prepared via facile, robust ab initio emulsion polymerization. The PCMCs present the quasi-monodispersed particle morphologies with the tunable particle size from 159 to 383 nm depending on the loading content of acrylic acid and the free surfactant. The latent heat density and phase change temperature of the PCMCs can be tuned from 66.6 to 115.2 J/g and from 20.8 to 65.4 °C, respectively, depending on the loading content and the type of phase change cores. The PCMCs confirm the latent heat efficiency of about 1, the high thermal reliability, and the high shape stability. The PCMCs can be functionalized by polyaniline coatings with an efficient photothermal effect. The robust, versatile approach to functionalized PCMCs can provide an alternative opportunity for the development of the next-generation smart thermal energy materials.

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Synthesis and properties of high thermal conductivity Ag shell-coated phase change materials

Cited by 21 publications

References 37 publications

Healable supramolecular micelle/nano-encapsulated metal composite phase change material for thermal energy storage

Healable supramolecular micelle/nano-encapsulated metal composite phase change material for thermal energy storage

Thermal-Conductive, Dynamic Cross-Linked Solid–Solid Phase Change Composites toward Sustainable Energy Utilization

Robust, Versatile Access to Quasi-Monodispersed Phase Change Sub-Microcapsules via Ab Initio Emulsion Polymerization

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