Fabrication and characterization of capric–lauric–palmitic acid/electrospun SiO2 nanofibers composite as form-stable phase change material for thermal energy storage/retrieval

Cai, Yibing; Sun, Guiyan; Liu, Mengmeng; Zhang, Jin; Wang, Qingqing; Wei, Qufu

doi:10.1016/j.solener.2015.04.042

Cited by 76 publications

(21 citation statements)

References 38 publications

(90 reference statements)

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“…Sustainable and renewable energy has attracted much attention from investigators as the shortage of energy and the serious environmental problems restrict the social economy from developing healthily [ 1 , 2 , 3 ]. Phase change materials (PCMs), also known as latent heat storage materials, can absorb or release large amounts of heat and adjust the temperature of the surrounding environment during the phase transition process [ 1 , 4 ]. Because of their merits, phase change materials (PCMs) have been applied extensively in many fields, including heat exchangers, waste heat recovery, refrigeration, and air-conditioning systems [ 4 , 5 , 6 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

“…Phase change materials (PCMs), also known as latent heat storage materials, can absorb or release large amounts of heat and adjust the temperature of the surrounding environment during the phase transition process [ 1 , 4 ]. Because of their merits, phase change materials (PCMs) have been applied extensively in many fields, including heat exchangers, waste heat recovery, refrigeration, and air-conditioning systems [ 4 , 5 , 6 , 7 ]. PCMs can be classified into three categories: inorganic, organic and composite phase change materials.…”

Section: Introductionmentioning

confidence: 99%

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High Performance Shape-Stabilized Phase Change Material with Nanoflower-Like Wrinkled Mesoporous Silica Encapsulating Polyethylene Glycol: Preparation and Thermal Properties

et al. 2018

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Nanoflower-like wrinkled mesoporous silica (NFMS) was prepared for further application as the carrier of polyethylene glycol (PEG) to fabricate the new, shape-stabilized phase change composites (PEG/NFMS); NFMS could improve the loading content of PEG in the PEG/NFMS. To investigate the properties of PEG/NFMS, characterization approaches, such as scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), thermal gravimetric analysis (TGA), Brunauer-Emmett-Teller (BET) analysis, and differential scanning calorimetry (DSC), were carried out. The characterization results illustrated that the PEG was completely adsorbed in the NFMS by physical adsorption, and the nanoflower-like wrinkled silica did not affect the crystal structure of PEG. As reported by the DSC test, although NFMS had a restriction influence on the activity of the PEG molecules, the melting and binding enthalpies of the PEG/NFMS could reach 136.6 J/g and 132.6 J/g, respectively. In addition, the TGA curves demonstrated that no evident weight loss was observed from 20 °C to 190 °C for the PEG/NFMS, and the results revealed that the PEG/NFMS had remarkable thermal stability. These results indicated that the NFMS is a potential carrier of organic phase change material for the preparation of shape-stabilized phase change composites.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

High Performance Shape-Stabilized Phase Change Material with Nanoflower-Like Wrinkled Mesoporous Silica Encapsulating Polyethylene Glycol: Preparation and Thermal Properties

et al. 2018

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“…The schematic diagram outlining the preparation of AgNPs functionalized GNS and MWCNT is shown in Figure 1; they were prepared following a previously published protocol with modifications [31][32][33]. GNS@AgNPs and MWCNT@AgNPs were prepared by the same procedure, which was simple and practical and could be divided into two parts.…”

Section: Preparation and Purification Of Gns@agnps And Mwcnt@agnpsmentioning

confidence: 99%

High-Performance Thermal Management Nanocomposites: Silver Functionalized Graphene Nanosheets and Multiwalled Carbon Nanotube

Zhou

Zhuang

et al. 2018

Crystals

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Polymer composites with high thermal conductivity have a great potential for applications in modern electronics due to their low cost, easy process, and stable physical and chemical properties. Nevertheless, most polymer composites commonly possess unsatisfactory thermal conductivity, primarily because of the high interfacial thermal resistance between inorganic fillers. Herein, we developed a novel method through silver functionalized graphene nanosheets (GNS) and multiwalled carbon nanotube (MWCNT) composites with excellent thermal properties to meet the requirements of thermal management. The effects of composites on interfacial structure and properties of the composites were identified, and the microstructures and properties of the composites were studied as a function of the volume fraction of fillers. An ultrahigh thermal conductivity of 12.3 W/mK for polymer matrix composites was obtained, which is an approximate enhancement of 69.1 times compared to the polyvinyl alcohol (PVA) matrix. Moreover, these composites showed more competitive thermal conductivities compared to untreated fillers/PVA composites applied to the desktop central processing unit, making these composites a high-performance alternative to be used for thermal management.

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“…32 In the latest years, embedding PCMs directly into inorganic porous materials as the carriers has motivated extensive interest, because this method enjoys numerous acknowledged superiorities including competitive price, shape stability, excellent mechanical strength, and extremely simple preparation technology. 33,34 Among all inorganic porous materials, expanded graphite and fumed silica possess the merits of high porosity and large specific surface area and are lightweight, making them the preferred carriers for the fabrication of CPCMs. However, many studies concentrated on enhancing the thermal conductivity of PCMs with expanded graphite in responding quickly to temperature changes.…”

Section: Introductionmentioning

confidence: 99%

Form‐stable Na ₂ SO ₄ ·10H ₂ O‐Na ₂ HPO ₄ ·12H ₂ O eutectic/hydrophilic fumed silica composite phase change material with low supercooling and low thermal conductivity for indoor thermal comfort improvement

Fang

Tang

et al. 2020

Int J Energy Res

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Summary In this research, a novel form‐stable composite phase change material (CPCM) based on Na2SO4·10H2O‐Na2HPO4·12H2O binary eutectic hydrated salt (EHS) as phase change material (PCM) and porous hydrophilic fumed silica (SiO2) as the carrier was prepared via the impregnation method, which is aimed at being integrated into building envelopes for the improvement of indoor thermal comfort and the reduction of building energy consumption. Thereinto, Na2SiO3·9H2O utilized as the nucleating agent suppressed the supercooling of the EHS enormously. Differential scanning calorimetry (DSC) result and the crystalline phase obtained by X‐ray diffraction (XRD) revealed that the mixture consisting of 20‐wt% Na2SO4·10H2O and 80‐wt% Na2HPO4·12H2O exhibited a eutectic melting behavior. Depending on DSC and leakage tests, the optimum amount of SiO2 in CPCM was determined as 30 wt%, which successfully stabilized the shape of the EHS to avoid leaking, simultaneously reduced thermal conductivity, and further facilitated its crystallization. Additionally, scanning electron microscope (SEM) manifested that the EHS was well adsorbed into the mesopores of SiO2. The obtained CPCM revealed an applicable phase transition temperature (25.16°C), moderate melting enthalpy (142.9 kJ·kg−1), negligible supercooling degree (0.24°C), and low thermal conductivity. More importantly, after 200 melting‐solidifying cycles, it displayed an excellent thermal reliability. All these results showed that the CPCM possessed desirable properties for applications.

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Fabrication and characterization of capric–lauric–palmitic acid/electrospun SiO2 nanofibers composite as form-stable phase change material for thermal energy storage/retrieval

Cited by 76 publications

References 38 publications

High Performance Shape-Stabilized Phase Change Material with Nanoflower-Like Wrinkled Mesoporous Silica Encapsulating Polyethylene Glycol: Preparation and Thermal Properties

High Performance Shape-Stabilized Phase Change Material with Nanoflower-Like Wrinkled Mesoporous Silica Encapsulating Polyethylene Glycol: Preparation and Thermal Properties

High-Performance Thermal Management Nanocomposites: Silver Functionalized Graphene Nanosheets and Multiwalled Carbon Nanotube

Form‐stable Na ₂ SO ₄ ·10H ₂ O‐Na ₂ HPO ₄ ·12H ₂ O eutectic/hydrophilic fumed silica composite phase change material with low supercooling and low thermal conductivity for indoor thermal comfort improvement

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Fabrication and characterization of capric–lauric–palmitic acid/electrospun SiO2 nanofibers composite as form-stable phase change material for thermal energy storage/retrieval

Cited by 76 publications

References 38 publications

High Performance Shape-Stabilized Phase Change Material with Nanoflower-Like Wrinkled Mesoporous Silica Encapsulating Polyethylene Glycol: Preparation and Thermal Properties

High Performance Shape-Stabilized Phase Change Material with Nanoflower-Like Wrinkled Mesoporous Silica Encapsulating Polyethylene Glycol: Preparation and Thermal Properties

High-Performance Thermal Management Nanocomposites: Silver Functionalized Graphene Nanosheets and Multiwalled Carbon Nanotube

Form‐stable Na 2 SO 4 ·10H 2 O‐Na 2 HPO 4 ·12H 2 O eutectic/hydrophilic fumed silica composite phase change material with low supercooling and low thermal conductivity for indoor thermal comfort improvement

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Form‐stable Na ₂ SO ₄ ·10H ₂ O‐Na ₂ HPO ₄ ·12H ₂ O eutectic/hydrophilic fumed silica composite phase change material with low supercooling and low thermal conductivity for indoor thermal comfort improvement