Nanosilver modified navel orange peel foam/polyethylene glycol composite phase change materials with improved thermal conductivity and photo-thermal conversion efficiency

Xiao, Shikun; Zou, Mingming; Xie, Yuqiong; Chen, Wenjing; Hu, Xiaowu; Ma, Yan; Zu, Shuai; Che, Yinhui; Jiang, Xiongxin

doi:10.1016/j.est.2022.105976

Cited by 31 publications

(2 citation statements)

References 14 publications

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“…Pure PEG had a low thermal conductivity of 0.263 W m −1 K −1 , which was in good agreement with values of 0.242 and 0.2651 W m −1 K −1 from the literature. 16,33 Meanwhile, the prepared PEG/FS SSPCMs with 60-100 wt% PEG presented increasing thermal conductivities of 0.140, 0.158, 0.183, and 0.221 W m −1 K −1 , respectively. The thermal conductivity (y) and PEG content (x) could be correlated to a linear equation of y = 0.0031x − 0.0544, suggesting a steady growth in thermal conductivity with increasing PEG content.…”

Section: Thermal Conductivity Of Peg/fs Sspcmsmentioning

confidence: 97%

Polyethylene glycol/fumed silica composites as shape-stabilized phase change materials with effective thermal energy storage

Nguyen

2023

RSC Adv.

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Section: Thermal Conductivity Of Peg/fs Sspcmsmentioning

confidence: 97%

Polyethylene glycol/fumed silica composites as shape-stabilized phase change materials with effective thermal energy storage

Nguyen

2023

RSC Adv.

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“…In order to realize efficient solar energy storage and conversion, simple and fast PCMs production methods are required [ 21 ]. The GO and biochar materials added to phase change materials together have become a hot research topic.…”

Section: Introductionmentioning

confidence: 99%

Effect of GO on the Structure and Properties of PEG/Biochar Phase Change Composites

et al. 2023

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In recent years, phase change materials (PCMs) have been widely used in waste heat utilization, buildings, and solar and wind energy, but with a huge limitation from the low thermal conductivity, photothermal conversion efficiency, and low latent heat. Organic PCMs are eyecatching because of its high latent heat storage capability and reliability, but they still suffer from a lack of photothermal conversion and sharp stability. Here, we prepared sharp-stable PCMs by establishing a carbon material frame system consisting of graphene oxide (GO) and biochar. In particular, surfactants (CTAB, KH-560 and KH-570) were employed to improve the dispersity of GO in PEG. The differential scanning calorimetry results shows that the latent heat of PEG modified by CTAB grafted GO (PGO-CTAB) was the highest (191.36 J/g) and increased by 18.31% compared to that of pure PEG (161.74 J/g). After encapsulation of PGO-CTAB in biochar, the obtained composite PCM with the amount of biochar and PGO-CTAB in weight ratio 4:6 (PGO-CTAB/CS6(6)) possesses relatively high latent heat 106.51 J/g with good leak resistance and thermal stability, and with obviously enhanced thermal conductivity (0.337 W/(m·K)) and photothermal conversion efficiency (77.43%), which were higher than that of PEG6000 (0.325 W/(m·K), 44.63%). The enhancement mechanism of heat transfer and photothermal conversion on the composite PCM is discussed.

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Development of green polystyrene composites using Citrus sinensis biochar filler

Adeniyi,

Abdulkareem,

Iwuozor

et al. 2024

Asia-Pacific J Chem Eng

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This research explored the characteristics of polymer composites reinforced with orange peel biochar. The composites were created using the hand lay‐up method with different filler ratios, cured at ambient temperature, and analyzed with various analytical techniques, including scanning electron microscopy (SEM), Fourier transform infrared spectroscopy, and energy dispersive X‐ray spectroscopy (EDX). SEM images showed that roughness increased with higher filler percentages. FTIR analysis detected functional groups like OH, COOH, and aromatic compounds in the composites, primarily inheriting these groups from the resin. Elemental analysis using EDX indicated that the composites contained carbon, oxygen, silicon, aluminum, and potassium. Among these elements, only the carbon concentration demonstrated a linear increase with rising filler levels, with the composite containing 40% biochar achieving the highest carbon content at 84%. Hardness testing showed that the physical strength of the composites increased as the polystyrene resin matrix was reinforced, with the 40% biochar composite exhibiting a maximum hardness value of 296 N. These results indicate that adding biochar not only enhanced the properties of polystyrene‐based composites but also reduced their environmental impact.

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Nanosilver modified navel orange peel foam/polyethylene glycol composite phase change materials with improved thermal conductivity and photo-thermal conversion efficiency

Cited by 31 publications

References 14 publications

Polyethylene glycol/fumed silica composites as shape-stabilized phase change materials with effective thermal energy storage

Polyethylene glycol/fumed silica composites as shape-stabilized phase change materials with effective thermal energy storage

Effect of GO on the Structure and Properties of PEG/Biochar Phase Change Composites

Development of green polystyrene composites using Citrus sinensis biochar filler

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