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Property-enhanced paraffin-based composite phase change

Research on phase change material (PCM) for thermal energy storage is playing a significant role in energy management industry. However, some hurdles during the storage of energy have been perceived such as less thermal conductivity, leakage of PCM during phase transition, flammability, and insufficient mechanical properties. For overcoming such obstacle,

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Enhanced Thermal Performance of Composite Phase Change

Thermal conductivity and latent heat are crucial performance parameters for phase change materials (PCMs) in thermal energy storage. To enhance the thermal performance of PCMs, with the help of graphene oxide (GO) acting as a dispersing agent, well-defined hybrid graphene aerogels (HGAs) with a three-dimensional (3D) porous structure were successfully

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Hybrid graphene aerogels/phase change material composites:

Hybrid graphene aerogels (HGA) consisting of graphene oxide (GO) and graphene nanoplatelets (GNP) were prepared and introduced into polyethylene glycol (PEG) via vacuum impregnation, aiming at obtaining composite phase change materials (PCMs) with high thermal conductivity, outstanding shape-stabilization, high energy storage density,

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Hierarchical graphene foam-based phase change materials with

Recently, graphene foam (GF) with a three-dimensional (3D) interconnected network produced by template-directed chemical vapor deposition (CVD) has been used to prepare composite phase-change materials (PCMs) with enhanced thermal conductivity. However, the pore size of GF is as large as hundreds of micrometers, resulting in a remarkable

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Performance analysis of phase change composites improved with graphene

The use of phase change materials (PCMs) for TES became crucial after the energy crisis of 1973–1974, offering an elegant and practical option to improve the efficiency of storage and usage of lost thermal energy in many industrial and domestic sectors [[10], [11], [12], [13]].However, they note that distributed TES is underdeveloped and overlooked, despite

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Molten Salt/Metal Foam/Graphene Nanoparticle Phase Change

Phase-change materials (PCMs) can store or release a large amount of latent heat during their phase transitions [1,2]. PCMs are recognized as the ideal thermal energy management materials with the

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Flexible graphene aerogel-based phase change film for solar

On the other hand, solar energy, as a renewable and inexhaustible energy resource, has been widely explored in the field of renewable energy storage and conversion [9], [10], [11] nverting solar energy into thermal energy stored in PCMs system is an efficient utilization approach of solar energy [12], [13], [14] bining PCMs with solar-thermal

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Characterizations and melting analysis of (amine) group

Herein, the energy storage performance of amine (NH2)-functionalized graphene mixed with paraffin wax (PW) which comprises the advanced phase change material (PCM) is studied. The amine-functionalized graphene is mixed with PW in four different volume percentages like 0.25 volume %, 0.5 volume %, 0.75 volume %, and 1 volume %. Its thermal

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Fabrication, morphology and thermal properties of

Fabrication, morphology and thermal properties of octadecylamine-grafted graphene oxide-modified phase-change microcapsules for thermal energy storage Author links open overlay panel Da-Zhu Chen a, Si-Yin Qin a, Gary C.P. Tsui b, Chak-yin Tang b, Xing Ouyang a, Jia-hua Liu a, Jiao-Ning Tang a, Jian-Dong Zuo a

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Performance improvement of phase change materials

How to improve the thermal conductivity of PCMs is still a key point in the field of phase change energy storage fields. Now research is focusing on filling metals or compounds that have high thermal conductivity in PCMs. 10 % modified graphene phase-change microcapsules were obtained, which were recorded as E-rGO-1/Paraffin, E-rGO-5

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Photothermal phase change material microcapsules via cellulose

Phase change materials (PCMs) have attracted significant attention in thermal management due to their ability to store and release large amounts of heat during phase transitions. However, their widespread application is restricted by leakage issues. Encapsulating PCMs within polymeric microcapsules is a promising strategy to prevent leakage and increase

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Molten Salt/Metal Foam/Graphene Nanoparticle Phase Change

The binary and ternary mixtures of nitrates are desirable phase change materials (PCMs) as latent heat thermal energy storage media for solar energy applications. In this study, graphene oxide was synthesized with graphite powder first and then it was doped into HITEC salt or solar salt solvent with sonication using two-step methods. Finally, metal foams

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Advances in phase change materials and nanomaterials for

Phase-changing materials are nowadays getting global attention on account of their ability to store excess energy. Solar thermal energy can be stored in phase changing material (PCM) in the forms of latent and sensible heat. The stored energy can be suitably utilized for other applications such as space heating and cooling, water heating, and further industrial processing where low

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Thermal energy harvesting of highly conductive graphene

Solar energy is the most plentiful renewable energy source that has the capability to keep up with the growing demand. When the sun''s energy is not available, thermal energy storage (TES) using phase change material (PCM) is a promising technique for storage and utilization. However, PCM''s low thermal conductivity may limit its use. The use of

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Carbon nanotube graphene multilevel network based phase change

Carbon nanotube graphene multilevel network based phase change fibers and their energy storage properties Here, we report a cooperative in situ impregnation strategy to introduce graphene oxide (GO) and polyethylene glycol (PEG) together into the carbon nanotube (CNT) network during the expansion process and construct a 1D–2D multilevel

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Preparation and characterization of graphene antibacterial phase change

The heat preservation performance of graphene antibacterial phase change energy storage viscose fiber was determined by flat type fabric temperature protector and differential scanning calorimetry. The result of heat preservation test shows that the fiber has a good heat preservation property The antibacterial property, far-infrared property

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Graphene aerogel stabilized phase change material for thermal energy

Due to the rapidly increasing gap between the energy consumption and storage, improving the efficiency of energy became urgent [[1], [2], [3], [4]].Thermal energy storage technology could absorb and release energy during the phase change process, therefore it has received immense attention to the satisfaction of the imbalance between the energy supply and

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Graphene aerogel-based phase changing composites for thermal

Phase changing materials (PCM) release or absorb heat in high quantity when there is a variation in phase. PCMs show good energy storage density, restricted operating temperatures and

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Fe3O4-functionalized graphene nanosheet embedded phase

The energy is stored by phase change materials during the phase transition process. The obtained hybrid nanocomposites exhibit excellent thermal stability with high melting–freezing

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Core–shell-like structured graphene aerogel encapsulating paraffin

The development of energy storage materials is critical to the growth of sustainable energy infrastructures in the coming years. Here, a composite phase change material (PCM) based on graphene and paraffin was designed and prepared through a modified hydrothermal method. Graphene oxide sheets were reduced an

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Graphene oxide/polyurethane‐based composite solid–solid

The preparation of phase change materials (PCMs) with high energy storage, thermal conductivity, and photothermal conversion capability is essential for improving solar

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Improving the Cold Thermal Energy Storage Performance of Paraffin Phase

The goal of this research is to compare the thermal energy storage of the composites of graphene/paraffin and expanded graphite/paraffin for low-temperature applications and understand the role of graphene and expanded graphite in this regard. Paraffin with 5 °C phase change temperature (Pn5) was employed as the phase change material (PCM). It was

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Form-stable phase change materials based on graphene-doped

Notably, the PEG and PEG/PVA samples were unable to reach the phase change temperature after 600 s of light due to the lack of effective light absorption. However, PEG/PVA-GO and PEG/PVA-rGO started to phase change for energy storage at around 150 s. At the end of light illumination, the surface temperature of PEG/PVA-GO reached to 76 °C.

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Flexible Polyolefin Elastomer/Paraffin Wax/Alumina/Graphene

In this study, electrically insulating polyolefin elastomer (POE)-based phase change materials (PCMs) comprising alumina (Al2O3) and graphene nanoplatelets (GNPs) are prepared using a conventional injection moulding technique, which exhibits promising applications for solar energy storage due to the reduced interfacial thermal resistance, excellent stability,

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Enhanced Thermal Properties of Phase Change Materials

Phase change materials (PCMs) are increasingly gaining prominence in thermal energy storage due to their impressive energy storage capacity per unit volume, especially in applications with low and medium temperatures. Nevertheless, PCMs have significant limitations regarding their ability to conduct and store heat, primarily due to their

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Accelerating the solar-thermal energy storage via inner-light

The solar-thermal conversion interface is localized in the inner of the PCMs, in which well-dispersed graphene converts light to heat and heat is stored in PCM accompanying

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Recent advances in phase change materials for thermal energy storage

The research on phase change materials (PCMs) for thermal energy storage systems has been gaining momentum in a quest to identify better materials with low-cost, ease of availability, improved thermal and chemical stabilities and eco-friendly nature. The present article comprehensively reviews the novel PCMs and their synthesis and characterization techniques

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Capric acid phase change microcapsules modified with graphene

To improve the efficiency of energy, phase change microcapsules with capric acid as core material and urea–formaldehyde resin modified by graphene oxide (GO) as shell material were synthesized by in situ polymerization. The particle characteristics, chemical structure, thermal conductivity and thermal stability of capric acid phase change microcapsules were

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Effects of functionalization on energy storage properties and

Paraffin-based nanocomposites are widely used in the energy, microelectronics and aerospace industry as thermal energy storage materials due to their outstanding thermophysical properties. This paper investigates the effects of functionalization on thermal properties of graphene/n-octadecane nanocomposite during phase transition by using non

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Thermal properties of beeswax/graphene phase change material as energy

DOI: 10.1016/J.APPLTHERMALENG.2016.10.085 Corpus ID: 113447779; Thermal properties of beeswax/graphene phase change material as energy storage for building applications @article{Amin2017ThermalPO, title={Thermal properties of beeswax/graphene phase change material as energy storage for building applications}, author={Muhammad Nasir Amin

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Graphene-modified Phase Change Microcapsules for Thermal

Subsequently, a small amount of graphene was added to the core material, forming composite phase change capsules capable of absorbing microwaves, which can improve electromagnetic

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About Graphene phase change energy storage

About Graphene phase change energy storage

As the photovoltaic (PV) industry continues to evolve, advancements in Graphene phase change energy storage have become critical to optimizing the utilization of renewable energy sources. From innovative battery technologies to intelligent energy management systems, these solutions are transforming the way we store and distribute solar-generated electricity.

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