Journal of Energy Storage
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2025
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IF 9.8
Mengru Liu,Wei Zhang,Rui Pan,Yunle Yao,Jianmin Li,Jiaping Zhang,Hua Cheng,Lin Chen,Xian Zhang,Xingyou Tian,Yi Gong
Solid-liquid phase change materials (PCMs) are susceptible to liquid leakage during the phase transition process. While existing encapsulation strategies are effective in addressing this issue, they continue to exhibit suboptimal compressive properties and low phase change latent heat value. Hyper-crosslinked polystyrene (HCPS) offers a number of advantages, including low skeletal density, good compatibility with PCM, high compressive strength and micro-mesoporous layered porous structure, which is expected to solve the above problems. In this study, HCPS-C 20 composite PCMs are prepared via a simple one-step procedure, using n-eicosane (C 20 ) as PCM, polystyrene (PS) precursor, and dimethoxymethane (FDA) crosslinker to achieve in-situ encapsulation of C 20 while synthesizing HCPS. The implementation of a one-step procedure effectively addresses the shortcomings associated with traditional encapsulation methods, which are known to be energy-intensive, costly, and complex to operate. In the article, shape-stabilized phase change material (SSPCM) with a high latent heat value (200.6 J/g), high structural stability (the initial decomposition temperature increases by ∼30 °C compared with pure C 20 ), excellent thermal cycling stability (demonstrating only 0.25 % melting enthalpy reduction after 100 thermal cycles), and ultra-high compressive strength (showing 0.38 % leakage rate under 40 MPa molding pressure) is developed through precise modulating of the PS/FDA ratio. The HCPS-C 20 composite PCM demonstrates significant potential for thermal energy storage applications, such as electronic equipment.
研究领域:
材料科学
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能源工程
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2022
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IF 16.744
Yinghao Zhang,Tianshi Li,Shuohao Zhang,Ling Jiang,Jun Xia,Jiaying Xie,Kefei Chen,Lixia Bao,Jingxin Lei,Jiliang Wang
Smart thermo-regulated textiles are promising to fabricate spacesuit, wearable electronic device, energy saving vehicle, homothermal shell system for rechargeable lithium batteries, and smart furniture and building materials etc. However, phase change temperature and related latent heat value of the state-of-the-art thermo-regulated smart textiles ranges from 35℃ to 65℃ and is lower than 65 J g −1 , respectively. It is still a big challenge to obtain smart thermo-regulated textile with a comfortable phase change temperature (e.g. 25 ℃), a latent heat value of up to 80 J g −1 , an excellent shape stability at high temperature (e.g. 100 ℃), an acceptable water proof ability, and a fabulous thermal recycle reliability. Herein, we for the first time report a smart thermal regulation textile with novel multicores-sheath nanostructures using the coaxial electrospinning technique accompanying with an in-situ UV irradiation polymerization. The obtained coaxial electrospinning fibers with the multicores-sheath structure own a comfortable phase change point (around 25 ℃), and show a maximum latent heat value of 106.2 J g −1 . The latent heat retention of the textiles is higher than 98.3% after the 500-times thermal recycles to illustrate their outstanding energy absorption-release reliability. The produced textiles still exhibit splendid heat preservation and excellent shape stability even if the surrounding temperature has reached 120℃. Water proof ability studies reveal that both latent heat and tensile strength values of the prepared textiles are almost unchanged after soaking in water. The herein preparation method opens up a new avenue to develop smart thermal regulation textiles with a room temperature phase change point, a high latent heat value, a distinctive shape stability at different temperatures, and an outstanding water proof ability.
研究领域:
材料科学
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能源存储
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纺织工程
✓ 已验证
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2023
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IF 5.2
Ruiqian Tao,Nianrong Feng,Jiahua Li,Bochen Li,Yugui Lv,Kenan Li,Dongying Hu
The development of flexible self-luminous reversible thermochromic passive energy-saving composites (TPCMs) is self-challenge due to the defects of easy leakage, non-visibility, solid phase rigidity, and weak light absorption . So, the emerging TPCMs were cleverly constructed using wood aerogel as support skeleton and different mass ratios of natural latex/long afterglow components as flexible and self-luminescent matrix based on optimal binary fatty alcohol eutectic (C 14 C 20 ). Among them, C 14 C 20 R-TEW-1R and C 14 C 20 G-TEW-0.35 P stand out with suitable phase transition temperatures (28.8 °C and 29.7 °C), high latent heat values (100.5 J g −1 and 119.4 J g −1 ), and low supercooling (0.7 °C and 0 °C). Induced by phase change, they change from rigid to flexible, from red/green to milky white, and can absorb light to achieve self-luminescence in the dark (orange red and blue-green) and enhanced photothermal efficiency. Beyond the traditional thermal/light stability and excellent anti-leakage performance, TPCMs realizes the combination of temperature sensitivity/control and self-luminous, providing broad application prospects in home automation, passive energy-saving in buildings, luminescent response switches, and other fields.
研究领域:
材料科学
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能源材料
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热管理
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复合材料
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智能材料
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建筑能效
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）