Enhanced thermal performance of phase-change material supported by nano-Ag coated eggplant-based biological porous carbon

Zhang, Chuge; Hu, Xiaowu; Xiao, Shikun; Luo, Wenxing; Wang, Haozhong; Jiang, Xiongxin

doi:10.1016/j.est.2021.103174

Cited by 47 publications

(11 citation statements)

References 41 publications

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“…In addition to wood, other biomass materials can also be combined with PEG to prepare composite PCMs. Zhang et al [ 42 ] took nanosilver-coated eggplant-based biological porous carbon (BPC) as support materials and PEG-6000 as PCMs to prepare PEG-6000/BPC composite PCMs. The phase change temperature and the latent heat of PEG-6000/BPC were 59.8 °C and 147.8 J/g, respectively.…”

Section: Phase Change Materials (Pcms)mentioning

confidence: 99%

A Review of Composite Phase Change Materials Based on Biomass Materials

et al. 2022

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Phase change materials (PCMs) can store/release heat from/to the external environment through their own phase change, which can reduce the imbalance between energy supply and demand and improve the effective utilization of energy. Biomass materials are abundant in reserves, from a wide range of sources, and most of them have a natural pore structure, which is a good carrier of phase change materials. Biomass-based composite phase change materials and their derived ones are superior to traditional phase change materials due to their ability to overcome the leakage of phase change materials during solid–liquid change. This paper reviews the basic properties, phase change characteristics, and binding methods of several phase change materials (polyethylene glycols, paraffins, and fatty acids) that are commonly compounded with biomass materials. On this basis, it summarizes the preparation methods of biomass-based composite phase change materials, including porous adsorption, microencapsulation based on biomass shell, and grafting by copolymerization and also analyzes the characteristics of each method. Finally, the paper introduces the latest research progress of multifunctional biomass-based composite phase change materials capable of energy storage and outlines the challenges and future research and development priorities in this field.

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Section: Phase Change Materials (Pcms)mentioning

confidence: 99%

A Review of Composite Phase Change Materials Based on Biomass Materials

et al. 2022

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“…In the current thermal energy storage technology system, phase change energy storage technology (PCEST) can resolve the contradiction between energy supply and demand, meet the technical and economic requirements for projects and products, and improve energy utilization. − Phase change materials (PCMs) are the basis of PCEST, which can absorb or release heat (cold) from the environment during the phase change process. ,, Figure a–c shows the working principle of the PCMs for energy storage and release. PCMs can be integrated into phase change energy storage systems and are used widely in solar energy utilization, waste heat recovery and utilization, building energy conservation, the textile industry, and power peak regulation, , as shown in Figure d.…”

Section: Introductionmentioning

confidence: 99%

Minireview on Design of Flexible Composite Phase Change Materials to Various Energy Applications: Progresses and Perspectives

et al. 2023

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With the continuous expansion of the research and development and application fields of phase change materials (PCMs), more and more attention has been paid to shape-tunable flexible composite PCMs, which have become a research hotspot in recent years. Flexible composite PCMs can be attached strongly to objects under a certain degree of deformation, thereby giving them great potential in smart applications. This paper reviews the design and fabrication strategies of flexible composite PCMs. The applications of flexible composite PCMs in various fields, such as temperature control of electrical equipment, the textile industry, and multifunctional applications, are introduced in detail. Finally, the challenges, gaps, and perspectives are put forward and discussed. This insightful review aims to provide an in-depth understanding and constructive guidance on flexible composite PCMs.

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“…But organic PCMs are free from this fatal defect. Additionally, organic PCMs present various excellent merits like high latent density, suitable phase transition temperature, low subcooling, and stable physicochemical properties. , Therefore, it is more popular in practical applications, such as paraffin wax, fatty acid, polyol, etc. Nevertheless, these organic PCMs are mostly solid–liquid PCMs, which still suffer from leakage after melting.…”

Section: Introductionmentioning

confidence: 99%

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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Enhanced thermal performance of phase-change material supported by nano-Ag coated eggplant-based biological porous carbon

Cited by 47 publications

References 41 publications

A Review of Composite Phase Change Materials Based on Biomass Materials

A Review of Composite Phase Change Materials Based on Biomass Materials

Minireview on Design of Flexible Composite Phase Change Materials to Various Energy Applications: Progresses and Perspectives

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

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