Development and characterization of novel and stable silicon nanoparticles-embedded PCM-in-water emulsions for thermal energy storage

Zhang, Xiyao; Niu, Jianlei; Wu, Jianyong

doi:10.1016/j.apenergy.2019.01.159

Cited by 61 publications

(16 citation statements)

References 48 publications

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“…During the mechanical stirring using the Ultra-Turrax homogenizer, the high accelerations acting in the polymer molecules produces extremely strong shear and thrust forces, highly increasing the turbulence between the rotor and stator (shear gap), which leads to a size reduction of the produced nanoparticle. Similar results were obtained for Bhadra et al [ 32 ], Burapapadh et al [ 33 ], and Zhang et al [ 34 ], who evidenced the effectiveness of the use of shear-based homogenization to reduce the size of nanoparticles with different compositions.…”

Section: Resultssupporting

confidence: 88%

Cashew Gum Polysaccharide Nanoparticles Grafted with Polypropylene Glycol as Carriers for Diclofenac Sodium

et al. 2021

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This investigation focuses on the development and optimization of cashew gum polysaccharide (CGP) nanoparticles grafted with polypropylene glycol (PPG) as carriers for diclofenac sodium. The optimization of parameters affecting nanoparticles formulation was performed using a central composite rotatable design (CCRD). It was demonstrated that the best formulation was achieved when 10 mg of CGP was mixed with 10 μL of PPG and homogenized at 22,000 rpm for 15 min. The physicochemical characterization evidenced that diclofenac was efficiently entrapped, as increases in the thermal stability of the drug were observed. The CGP-PPG@diclofenac nanoparticles showed a globular shape, with smooth surfaces, a hydrodynamic diameter around 275 nm, a polydispersity index (PDI) of 0.342, and a zeta potential of −5.98 mV. The kinetic studies evidenced that diclofenac release followed an anomalous transport mechanism, with a sustained release up to 68 h. These results indicated that CGP-PPG nanoparticles are an effective material for the loading/release of drugs with similar structures to diclofenac sodium.

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Section: Resultssupporting

confidence: 88%

Cashew Gum Polysaccharide Nanoparticles Grafted with Polypropylene Glycol as Carriers for Diclofenac Sodium

et al. 2021

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“…According to the previous researches [ 46 , 47 , 48 ], adding fillers with high thermal conductivity could change the microstructure and components of composite materials interface, thus influencing the thermal conductivity of PCMs. Colla et al [ 46 ] added Al 2 O 3 and carbon black (CB) to two kinds of PAs (RT20 and RT25) with different melting temperatures, and found that in the presence of 1 wt% CB nanoparticles, the thermal conductivity increased by more than 35%.…”

Section: Adding High Heat-conducting Fillersmentioning

confidence: 99%

“…The results indicated that due to the presence of xGnP, an interconnection network was formed on the internal porous structure of EP, thereby significantly improving the thermal performance of composite PCM, and adding 1 wt % xGnP could increase the thermal conductivity by 49%. Zhang et al [ 48 ] designed a method to prepare PCM emulsion containing n-hexadecane with the aid of an emulsifier. Compared with solid PCM, the emulsion had higher fluidity and volume change, thereby achieving better thermal conductivity.…”

Section: Adding High Heat-conducting Fillersmentioning

confidence: 99%

Phase Change Materials Application in Battery Thermal Management System: A Review

et al. 2020

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The purpose of a battery thermal management system (BTMS) is to maintain the battery safety and efficient use as well as ensure the battery temperature is within the safe operating range. The traditional air-cooling-based BTMS not only needs extra power, but it could also not meet the demand of new lithium-ion battery (LIB) packs with high energy density, while liquid cooling BTMS requires complex devices to ensure the effect. Therefore, phase change materials (PCMs)-based BTMS is becoming the trend. By using PCMs to absorb heat, the temperature of a battery pack could be kept within the normal operating range for a long time without using any external power. PCMs could greatly improve the heat dissipation efficiency of BTMS by combining with fillers such as expanded graphite (EG) and metal foam for their high thermal conductivity or coordinating with fins. In addition, PCMs could also be applied in construction materials, solar thermal recovery, textiles and other fields. Herein, a comprehensive review of the PCMs applied in thermal storage devices, especially in BTMS, is provided. In this work, the literature concerning current issues have been reviewed and summarized, while the key challenges of PCM application have been pointed out. This review may bring new insights to the PCM application.

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“…Zhang et al [ 72 ] tested several surfactant mixtures of the Tween-Span series at 1:1 mass ratio and found that the Span20/Tween80 combination presented the best performance for octacosane emulsions in terms of the relatively small particle size and breaking ratio. A later study by the same group [ 74 ] showed that the Span 80/Tween 80 combination was the best for hexadecane emulsions. Their results indicated that the optimal surfactant selection depended strongly on the paraffin category.…”

Section: Preparation Of Pcm Emulsions By High-energy Methodsmentioning

confidence: 99%

Preparation of Stable Phase Change Material Emulsions for Thermal Energy Storage and Thermal Management Applications: A Review

Liu

Niu

2021

Materials

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Thermal energy storage (TES) is an important means for the conservation and efficient utilization of excessive and renewable energy. With a much higher thermal storage capacity, latent heat storage (LHS) may be more efficient than sensible heat storage. Phase change materials (PCMs) are the essential storage media for LHS. PCM emulsions have been developed for LHS in flow systems, which act as both heat transfer and thermal storage media with enhanced heat transfer, low pumping power, and high thermal storage capacity. However, two major barriers to the application of PCM emulsions are their instability and high degree of supercooling. To overcome these, various strategies have been attempted, such as the reduction of emulsion droplet size, addition of nucleating agents, and optimization of the formulation. To the best of our knowledge, however, there is still a lack of review articles on fabrication methods for PCM emulsions or their latest applications. This review was to provide an up-to-date and comprehensive summary on the effective strategies and the underlying mechanisms for the preparation of stable PCM emulsions and reduction of supercooling, especially with the organic PCMs of paraffin. It was also to share our insightful perspectives on further development and potential applications of PCM emulsions for efficient energy storage.

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Development and characterization of novel and stable silicon nanoparticles-embedded PCM-in-water emulsions for thermal energy storage

Cited by 61 publications

References 48 publications

Cashew Gum Polysaccharide Nanoparticles Grafted with Polypropylene Glycol as Carriers for Diclofenac Sodium

Cashew Gum Polysaccharide Nanoparticles Grafted with Polypropylene Glycol as Carriers for Diclofenac Sodium

Phase Change Materials Application in Battery Thermal Management System: A Review

Preparation of Stable Phase Change Material Emulsions for Thermal Energy Storage and Thermal Management Applications: A Review

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