Melamine foam-templated graphene nanoplatelet framework toward phase change materials with multiple energy conversion abilities

Xue, Fei; Lu, Yu; Qi, Xiao-dong; Yang, Jing‐hui; Wang, Yong

doi:10.1016/j.cej.2019.02.023

Cited by 205 publications

(52 citation statements)

References 46 publications

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“…Threedimensional (3D) network skeleton, due to high surface area, good electric and heat conductivity, is identified as a promising support material to overcome the limitations of interfacial thermal resistance of discrete, fragmentary nanoshells or fillers. Various architectures [9][10][11][12][13][14][15][16] such as graphene aerogel (GA) 17 , MOFs 18 , porous polymer 5,19 , carbon foam [20][21][22] and BN-based porous scaffolds 23,24 , can not only encapsulate the PCMs but also enhance thermal conductivity. However, the leakage is still unavoidable.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Three-Dimensional Copper@Graphene Phase Change Composite with High Structural Stability and Low Leakage Rate

李晓明¹,

高逸丹²,

孔庆强³

et al. 2021

Acta Physico Chimica Sinica

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Owing to the continuous increase in energy consumption and the growing depletion of traditional fossil fuels, the development of renewable energy is becoming increasingly urgent. Renewable energy has come to the fore, represented by geothermal energy and solar energy. However, the application of these energy sources is highly susceptible to weather, season, location, and time. Thus, these alternative energies are unstable, random, fluctuating, intermittent, and inefficient. The development of energy storage technologies can efficiently solve these problems, storing and releasing energy when needed. Among the key materials used in various energy-storage technologies, phase-change materials (PCMs) are strong candidates for smart thermal energy management and portable thermal energy sectors. As most innate PCMs face issues of low thermal conductivity, environmental pollution, and leakage over their melting point, encapsulating PCMs into supporting materials is necessary. However, these supporting materials face significant challenges in their application. First, skeleton materials should be resistant to the PCM volume changes during melting and solidification processes to achieve suitable structural stability. Second, skeleton materials should also have high thermal conductivity and a low leakage rate. Graphene aerogel (GA) has proven to be an effective supporting skeleton to improve the shape-stability of PCMs; however, the leakage caused by the phase transition and the brittleness of the network structure is a primary problem restricting its application. Skeleton materials play a crucial role in the performance of PCMs. Herein, we propose a double-pulse plating reinforcement strategy for fabricating copper@graphene aerogel (Cu@GA) as a skeleton material for phase change energy. In this design, individual nanosheets of the GA were uniformly covered and interlinked by copper particles. The Cu@GA interlinked networks ensure suitable thermal conductivity and a robust framework, beneficial for phase change heat transfer and leaksuppression performance. In addition, we prepared a PCM composite with high structural stability and low leakage rate by encapsulating octadecylamine (ODA) in Cu@GA through vacuum impregnation to ensure homogeneous ODA dispersion in the Cu@GA porous structure. The influence of different skeletons on the PCM composite leakage rate was investigated by comparing the weight change of the PCM composite. Benefiting from these structural features, the optimized composite phase change material (CPCM) Cu@GA/ODA showed a reduced leakage rate of 19.82% (w, mass fraction) compared to 80.31% (w) of GA/ODA and 72.99% (w) of GOA/ODA after 20 heat storage and release cycles. The cycled skeleton morphology was investigated using scanning electron microscopy to determine the origin of this influence. The skeleton

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Section: Introductionmentioning

confidence: 99%

Fabrication of Three-Dimensional Copper@Graphene Phase Change Composite with High Structural Stability and Low Leakage Rate

李晓明¹,

高逸丹²,

孔庆强³

et al. 2021

Acta Physico Chimica Sinica

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“…The use of PCMs in the field of heat storage has a series of advantages, such as high latent heat storage capacity, appropriate solidliquid phase change temperature, thermal reliability, and low cost. [11][12][13][14][15][16][17][18][19][20][21][22][23][24] Compared to the single system, it has high thermal storage density and low melting point. However, the thermal physical property data of composite PCMs is limited.…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in Organic/Composite Phase Change Materials for Energy Storage

Zhou¹,

Wu²,

Ma³

et al. 2020

ES Energy Environ.

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Phase change materials (PCMs) store and release energy in the phase change processes. In recent years, PCMs have gained increasing attention due to their excellent properties such as high latent heat storage capacity, appropriate solid-liquid phase change temperature, thermal reliability, and low cost. Herein, classification, characteristics, and evaluation criteria of organic/composite PCMs are systematically illustrated, and some typical preparation methods are introduced, such as in-situ polymerization, interfacial polymerization, spray drying method, porous materials adsorption method, sol-gel method, meltimpregnated and mixing method, electrospinning method, vacuum infiltration and ultrasonic method are introduced. In addition, this review presents some applications of PCMs in the utilization of solar energy, building materials, air conditioning, industrial waste heat recovery, and military camouflage and stealth. Finally, the development tendency of PCMs is discussed.

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“…The best solution is to prepare composite PCMs by packaging PCMs into supporting materials ( Chen et al., 2020a ; Lin et al., 2018b ; Qureshi et al., 2018 ). To date, the most popular is carbon supporting materials, especially graphene and carbon nanotubes (CNTs) materials ( Aftab et al., 2019 ; Cao et al., 2019 ; Hu et al., 2020 ; Qian et al., 2018 ; Shin et al., 2016 ; Song et al, 2019 ; Tang et al, 2019 ; Wang et al., 2019b ; Wu et al, 2019 ; Xue et al., 2019 ; Zhang et al., 2019a , 2019b , 2019d ; Zhang and Liu, 2019 ). Undoubtedly, highly thermally conductive carbon materials can accelerate thermal transfer and boost the charging/discharging rates of composite PCMs.…”

Section: Introductionmentioning

confidence: 99%

Toward Tailoring Chemistry of Silica-Based Phase Change Materials for Thermal Energy Storage

et al. 2020

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Summary Efficient thermal energy harvesting using phase change materials (PCMs) has great potential for thermal energy storage and thermal management applications. Benefiting from these merits of pore structure diversity, convenient controllability, and excellent thermophysical stability, SiO 2 -based composite PCMs have comparatively shown more promising prospect. In this regard, the microstructure-thermal property correlation of SiO 2 -based composite PCMs is still unclear despite the significant achievements in structural design. To enrich the fundamental understanding on the correlations between the microstructure and the thermal properties, we systematically summarize the state-of-the-art advances in SiO 2 -based composite PCMs for tuning thermal energy storage from the perspective of tailoring chemistry strategies. In this review, the tailoring chemistry influences of surface functional groups, pore sizes, dopants, single shell, and hybrid shells on the thermal properties of SiO 2 -based composite PCMs are systematically summarized and discussed. This review aims to provide in-depth insights into the correlation between structural designs and thermal properties, thus showing better guides on the tailor-made construction of high-performance SiO 2 -based composite PCMs. Finally, the current challenges and future recommendations for the tailoring chemistry are also highlighted.

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Melamine foam-templated graphene nanoplatelet framework toward phase change materials with multiple energy conversion abilities

Cited by 205 publications

References 46 publications

Fabrication of Three-Dimensional Copper@Graphene Phase Change Composite with High Structural Stability and Low Leakage Rate

Fabrication of Three-Dimensional Copper@Graphene Phase Change Composite with High Structural Stability and Low Leakage Rate

Recent Advances in Organic/Composite Phase Change Materials for Energy Storage

Toward Tailoring Chemistry of Silica-Based Phase Change Materials for Thermal Energy Storage

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