Enhanced thermal performance of phase-change materials supported by mesoporous silica modified with polydopamine/nano-metal particles for thermal energy storage

Li, Jiayin; Hu, Xiaowu; Zhang, Chuge; Luo, Wenxing; Jiang, Xiongxin

doi:10.1016/j.renene.2021.06.021

Cited by 102 publications

(25 citation statements)

References 42 publications

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“…These two factors can promote the crystallization behavior of the PEG molecular chain, and then increase its phase change enthalpy, that is, better heat storage capacity. 6,64 In comparison to other PEG-based phase change materials, the λ and η of Ag@BSPCM achieved in this study were much improved, as shown in Figure 6B. At the same time, the enthalpy efficiency of prepared Ag@BSPCM was also high compared to other porous carbon-based BSPCMs studied in the related papers, as shown in Table 1.…”

Section: Phase Change Properties Of the Bspcmssupporting

confidence: 49%

“…Solar energy is a notable research topic for solving these challenges since it is the only renewable energy source that is clean, endless, and abundant 3,4 . The thermal energy storage based on PCMs not only alleviates the gap between energy supply and demand for energy but also significantly improves energy efficiency to a large degree 5‐7 …”

Section: Introductionmentioning

confidence: 99%

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Nano‐Ag modified bio‐based shape‐stable phase change material for thermal energy storage

Zou

Chen

et al. 2022

Intl J of Energy Research

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Recently, the technology of employing phase change materials (PCMs) for solar energy storage has grown more magnetic due to the focus of various latent heat storage investigations to solve the energy crisis. In this work, a novel and ecofriendly shape-stable phase change material based on a biological matrix was prepared through vacuum impregnation, which used porous carbon as a support substrate from Cyperus alternifolius (CA), polyethylene glycol (PEG) as the phase change medium, and silver nanoparticles attached to the matrix as the reinforcement factor. The superior porous structure of CA allows it to have a high loading rate of PEG. The multifunctionality of silver nanoparticles can increase the thermal conductivity of the bio-based shape-stable phase change material (BSPCM) up to 0.676 W/(m K), while also boosting its photo-thermal conversion efficiency to 82.7%. Furthermore, the Ag@BSPCM has an excellent melting enthalpy of 137.3 J/g, as well as outstanding thermal stability and reliability. Additionally, the great photo-to-thermal conversion efficiency of Ag@BSPCM (82.7%) and the significant anti-leakage capability bodes well for its future application. This demonstrates the prepared Ag@BSPCM proves its feasibility for thermal energy storage management and photo-thermal conversion.

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Section: Phase Change Properties Of the Bspcmssupporting

confidence: 49%

Section: Introductionmentioning

confidence: 99%

Nano‐Ag modified bio‐based shape‐stable phase change material for thermal energy storage

Zou

Chen

et al. 2022

Intl J of Energy Research

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“…Higher specific area and more uniform mesoporous structure were more conducive to the synthesis of morphologically stable composite PCMs from large molecular weight of PEG immobilized by aerogel. 15 Therefore, rGO−COF aerogel was available for adsorbing high molecular weight PCM, forming a physical cross-linked structure by capillary adsorption and surface interaction with mesopores, restricting the movement of polymer chains and forming a stable composite PCM. 36 PEG-based composite PCMs were prepared by vacuum impregnation in this work; it is clearly visible that PEG successfully filled the pores of aerogels from Figure S4 in the Supporting Information.…”

Section: Resultsmentioning

confidence: 99%

“…The adsorption–desorption curves and pore size distribution graphs are shown in Figure S3 in the Supporting Information. Higher specific area and more uniform mesoporous structure were more conducive to the synthesis of morphologically stable composite PCMs from large molecular weight of PEG immobilized by aerogel . Therefore, rGO–COF aerogel was available for adsorbing high molecular weight PCM, forming a physical cross-linked structure by capillary adsorption and surface interaction with mesopores, restricting the movement of polymer chains and forming a stable composite PCM .…”

Section: Resultsmentioning

confidence: 99%

“…14 Currently, using porous materials as support structures is an effective solution to prepare morphologically stable composite PCMs by utilizing the capillary effect and surface tension of porous materials to adsorb the melted PCMs. The commonly used porous materials include mesoporous SiO 2 , 15 metal foam, 16 porous carbon, 17 aerogel, 18 and so on. Reduced graphene oxide (rGO) aerogel is one of the common porous materials with high specific area, high porosity, and ultralow density.…”

Section: Introductionmentioning

confidence: 99%

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Lipophilic Modified Hierarchical Multiporous rGO Aerogel-Based Organic Phase Change Materials for Effective Thermal Energy Storage

Luo

Zou

Luo

et al. 2022

ACS Appl. Mater. Interfaces

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In the field of thermal energy storage, organic phase change materials (PCMs) are widely used as functional materials to boost thermal applications. However, there is often a tradeoff between constructing shape-stable composite PCMs with high enthalpy value and those with low leakage rates. Here, we proposed a promising scheme to address this issue. A novel hydrogel consisting of reduced graphene oxide (rGO) and covalent organic framework (COF) was prepared via hydrothermal methods, and the rGO–COF ultralight aerogel with a hierarchical porous structure was formed after freeze-drying. The rGO–COF aerogel shows excellent absorption ability and affinity for organic solvents. It can sufficiently adsorb the molten organic PCMs, such as polyethylene glycol (PEG), and synthesize shape-stable composite PCMs with excellent leak resistance. The COF grown on the surface of rGO has a superior affinity for PEG, so rGO–COF aerogel shows an outstanding PEG loading rate of up to 96.1 wt %, which is 1.7 wt % higher than that of rGO aerogel. In addition, the COF effectively reduces the subcooling of PEG/rGO–COF with 20.3%, compared to PEG/rGO. Meanwhile, the prepared PEG/rGO–COF exhibits extremely high enthalpy and relative enthalpy efficiency (164.6 J/g, 97.4%). This demonstrates that a promising direction was highlighte for the preparation of high-enthalpy shape-stable composite organic PCMs in this work.

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Micro/Nano Encapsulated Phase Change Materials: Preparation, Principle, and Emerging Advances in Medical Field

Yuan,

Chen,

Qin

et al. 2024

Adv Funct Materials

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Due to the unique thermal absorption and release capabilities, phase‐change materials (PCMs) are used in various industrial fields, such as photo‐thermal storage and building‐energy saving. In recent years, more and more research has been dedicated to applying PCMs to the medical field with substantial progress, opening new avenues for disease treatment and healthcare. The safety and reliability of PCMs may be taken into serious consider for continuous application in the medical field, while the relevant review on the related development is currently lacking. In this work, the methods for enhancing the applicability and reliability of PCMs in the medical field are systematically summarized, including microencapsulation, electrospinning technology, and porous framework encapsulation, which effectively address the issues of liquid leakage. Subsequently, the emerging advances of PCMs in medical healthcare, including medical dressings treatment, drug delivery, cold chain transport, and bio‐bone cement are summarized. By exploring and analyzing the encapsulation methods, principles as well as the emerging advances of PCMs in medical field, the challenges and perspectives promoting the applications are identified, presenting the guidelines for further development.

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Enhanced thermal performance of phase-change materials supported by mesoporous silica modified with polydopamine/nano-metal particles for thermal energy storage

Cited by 102 publications

References 42 publications

Nano‐Ag modified bio‐based shape‐stable phase change material for thermal energy storage

Nano‐Ag modified bio‐based shape‐stable phase change material for thermal energy storage

Lipophilic Modified Hierarchical Multiporous rGO Aerogel-Based Organic Phase Change Materials for Effective Thermal Energy Storage

Micro/Nano Encapsulated Phase Change Materials: Preparation, Principle, and Emerging Advances in Medical Field

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