ACS Sustainable Chemistry & Engineering
·
2023
·
IF 8.4
Hongyang Li,Chengzhi Hu,Yanhui Jiang,Jie Zhu,Yichuan He,Xianfeng Hu,Dawei Tang
Solid–liquid phase change materials (PCMs) with large latent heat can efficiently weaken thermal peaks, thus alleviating the thermal discomfort of human beings caused by electronic devices. However, the leakage during the melting process and the low thermal conductivity severely limit their application in electronic thermal management. In this study, a flexible and leakage-proof sodium alginate-based phase change composite film (PCCF) was first fabricated via a facile and green synthesis method with the assistance of stainless steel meshes, and its synthetic size could be easily regulated via a mold. Multiwall carbon nanotubes (MWCNTs) were used to enhance the thermal conductivity of the PCCF. Through the leakage prevention tests, it can be found that the PCCF-0.7 (the mass fraction of polyethylene glycol (PEG) was 70%) exhibited leakage proof under an external force. The phase change enthalpy of the PCCF-0.7 reached 100.05 J/g, and the enthalpy retention rate reached 76%. The radial thermal conductivity of PCCF-0.7 (contains 8 wt % MWCNTs) was 3.52 W/(m·K), 3810% higher than that of pure PEG. The heat transfer experiment demonstrated that the PCCF could efficiently store thermal energy; the maximum temperature of the analog smartphone could be reduced by 5.3 °C. Hence, the prepared PCCF is suitable for providing thermal comfort to electronic devices, and it is sustainable and eco-friendly.
研究领域:
材料科学
·
电子工程
✓ 已验证
产品关联
DOI
高影响因子
ENERGY CONVERSION AND MANAGEMENT
·
2018
·
IF 6.377
Youfu Lv,Wenfu Situ,Xiaoqing Yang,Guoqing Zhang,Ziyuan Wang
As an advanced battery thermal management method, phase change material (PCM) cooling technology is highly desirable but remains significant challenges, considering the instability of the PCM module, including PCM leakage, volume changes and inhomogeneity of the whole module during the repeated melting/solidifying processes. Herein, we develop a kind of nanosilica (NS)-enhanced composite PCM (CPCM-NS) with outstanding anti-leakage and anti-volume-change performances for power battery thermal management. The NS presents numerous nanoscale pores ranging from 30 to 100 nm, which can adsorb liquid phase paraffin (PA) intensively, thus preventing the migration and leakage of liquid PA, increasing the homogeneity and reliving the volume change phenomenon of the module to a great extent. As a result, these enhanced properties of CPCM-NS endow the obtained battery module with much better cooling efficiency and durability. For instance, the maximum temperatures of CPCM-NS with 5.5 wt% of NS are 1.6, 2.4, 4.5, 5.3 and 5.9 °C lower than those of CPCM without NS at the 1st, 2nd, 4th, 6th and 8th cycle charge/discharge cycle, respectively, and this temperature difference remains stable at 6.22 ± 0.05 °C during the subsequent cycles.
研究领域:
材料科学
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能源工程
✓ 已验证
DOI
高影响因子
Advanced Materials Interfaces
·
2021
·Vol. 8
·期 18
·2100807
·
IF 6.147
Xinlong Dong,Binghe Zheng,Guoqing Zhang,Changren Xiao,Xiaoqing Yang
Phase change material (PCM) shows great potentials in battery thermal management (BTM) application, but there are significant challenges including PCM leakage, low secondary heat dissipation capability, and poor reprocessability. Herein, a type of phase change polymer (PCP) with intrinsic antileakage, reprocessability and heat dissipation capability is prepared via the copolymerization of octadecyl acrylate (OA) and methyl methacrylate (MMA). The rigid segment of MMA guarantees the shape stability of the PCP while avoiding using the crosslinkers, and thus simultaneously endows the linear PCP with quasi-thermoplastic property for reprocessing. The chemical-bonded phase changeable side chains from the OA segments provide a large latent heat of 100.5 J g –1 and fundamentally overcome the leakage problem. Additionally, the obtained PCP demonstrates a higher crystalline temperature favorable for secondary dissipation of the absorbed heat to the environment. Consequently, the obtained PCP demonstrates superior cooling performances in BTM applications. The temperature of the battery module with PCP cooling can be stably controlled below 52.5 °C under a harsh working environment of 3C-3C charge–discharge at 35 °C for 15 cycles. In contrast, the battery module adopting classical physically blended PCM cooling shows a much higher and gradually increasing maximum temperature during the cycles.
研究领域:
材料科学
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能源工程
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产品关联
DOI
高影响因子
APPLIED ENERGY
·
2017
·
IF 7.182
Li Zhang,Wenbin Yang,Zhuoni Jiang,Fangfang He,Kai Zhang,Jinghui Fan,Juying Wu
Novel microencapsulated phase change materials (MEPCMs) with high encapsulation capacity and enhanced leakage-prevention performance were prepared by in situ polymerization. For these MEPCMs, paraffin and melamine-formaldehyde resin (MF) are respectively used as core and shell, and graphene oxide (GO) nanosheets, which can be seen as extra protective screen, are situated at the interface between the core and the shell. Effects of GO on morphology, microstructure and properties of MEPCMs were characterized by scanning electronic microscopy (SEM), laser diffraction particle analyzer, atomic force microscopy (AFM), Fourier transformation infrared spectroscopy (FTIR), X-ray diffractometry (XRD), transmission electron microscopy (TEM), differential scanning calorimetry (DSC), thermogravimetric analysis (TG) and paraffin leakage rate test. The results show that the fabricated MEPCMs with GO nanosheets have gradual increasing average diameters from 6.32 to 15.89 μm with an increase content of GO, while the size of MEPCMs without GO is 5.63 μm. When the time of leakage rate test is 50 h, the MEPCMs prepared with 0.5 mg/mL GO aqueous dispersion have considerably high encapsulation ratio of 93.9 wt.%, and the leakage rate is reduced by 93.1% compared with those without GO. The high encapsulation capacity and enhanced leakage-prevention performance might be highly attractive for the application of MEPCMs.
研究领域:
材料科学
·
能源存储与转换
✓ 已验证
DOI
高影响因子
Journal of Energy Storage
·
2025
·
IF 9.8
Xuelai Zhang,Chao Lan,Musen Li,Yukun Gao,Jun Ji,Weisan Hua,Zhenglong Shao,Chenzhao Ma,Yuanzhe Gu
The development of reliable, low leakage phase change gels is critical for ensuring vaccine cold chain safety and efficacy. This study presents a multi-stage network encapsulation strategy to fabricate leakage-resistant composite phase change materials (CPCMs), combining ionic cross linking and expanded graphite (EG) physical adsorption. The optimized composite retained 91.4 % latent heat (231.3 J/g), achieved high thermal conductivity (3.15 W/(m·K)), and exhibited minimal mass loss (<3.7 %). Accelerated thermal cycling tests (400 cycles, −40 °C to 25 °C) demonstrated robust cycling stability, with <13 % latent heat degradation. In addition, the aluminum plastic film encapsulation ensured zero leakage, aligning with stringent biomedical safety standards. Integration of composite cold storage modules at the box top extended the effective storage duration within the −25 °C to −15 °C range to 12.2 h (82.6 % improvement), addressing insufficient thermal buffering in conventional systems. This design enabled rapid thermal response and uniform temperature distribution within the transport box, providing a scalable solution for biomedical cold chain logistics.
研究领域:
生物医学工程
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低温保存
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热力学
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药物递送
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材料科学
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公共卫生
·
冷链物流
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
·
IF 5.4
Ying Xue,Ruijia Wang,Qing Liu,Xiaonan Hao,Yue Wu,Jingxuan Zhao,Shulin Sun
The pollution of water resources is becoming increasingly severe, and the development of separation membranes with excellent purification performance is crucial for addressing this issue. Conventional membrane modification methods often suffer from multi-stepprocedures and the susceptibility of functional components to leaching. This study introduces a novel one-step melt-blending strategy that utilizes ionic liquids (ILs) as both grafting monomers and intercalation agents. This approach simultaneously achieves graft modification of poly(vinylidene fluoride) ( PVDF) chains and intercalation into Sodium-based montmorillonite (Na⁺MMT) interlayers. The proposed “grafting-intercalation co-construction” mechanism not only significantly streamlines the preparation process but, more importantly, fundamentally prevents IL leaching during membrane formation and operation. Furthermore, the intercalated structure creates additional selective transport pathways for water molecules. The PVDF-g-ILs/MMT composite membrane demonstrates hydrophilic and underwater superoleophobic characteristics, achieved the PWF of 310.8 L·m⁻²·h⁻¹ , represented the 330 % enhancement compared to pristine PVDF membranes, while maintained rejection rates exceeding 98 % for both dye molecules and oily wastewater. The membrane exhibits remarkable long-term stability, maintained flux recovery rates (FRR) of 92 % for dyes and 90 % for emulsions after 5 filtration cycles, significantly outperforming PVDF membranes. The study not only provides an efficient membrane for wastewater purification, but more importantly offers a highly promising paradigm for membrane material design. By integrating multiple functionalities through a one-step synergistic strategy, it provides new insights for addressing the challenges of complex industrial wastewater treatment.
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产品关联
DOI
高影响因子
International Journal of Refrigeration
·
2025
·
IF 3.8
Shiya Lin,Yiqi Xie,Xianyang Chen,Pengcheng Lin,Ying Chen
Advanced cold chain systems are essential for maintaining nutritional integrity and reducing spoilage in perishable fruits. However, conventional mechanical refrigeration incurs considerable energy consumption and operational costs. This study introduces a green, safe, and cost-effective alternative—Brine Phase Change Cold Storage Gels (BPCCSGs). With a low phase change temperature (−11.29 °C), high latent heat (242.14 J·g⁻¹), and elevated thermal conductivity (0.835 W·m⁻¹·K⁻¹), BPCCSGs are well-suited for cold chain applications involving subtropical fruits. Additionally, the risk of cold storage material leakage and its consequent detriment to fruit safety could be significantly reduced by using our state-of-the-art gel packaging technique. Gel-based encapsulation effectively minimized leakage risk and prevented potential contamination. Pre-charging BPCCSGs during off-peak hours significantly improved energy and cost efficiency (3.82 × 10⁻⁵ $·J⁻¹), while reducing environmental burden. Moreover, the improvement in thermal conductivity and the optimization of the spatial layout facilitated temperature uniformity of BPCCSGs at cold storage scenarios. Finally, the integration of a 5G-enabled sensor system enabled real-time monitoring of temperatures and locations. The system was successfully deployed in waxberry logistics, ensuring real-time traceability and maintaining fruit quality, highlighting its potential for next-generation cold chain systems.
研究领域:
食品科学
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储能技术
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制冷技术
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供应链管理
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智慧农业
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Energy Storage
·
2025
·
IF 9.8
Yanke Chang,Wenxin Dong,Zhigang Liao,Junqiao Liao,Chao Wang,Baisheng Nie,Daokui Li
Buildings represent a significant global energy consumer, with heating and cooling accounting for the dominant demand sector, where renewable energy penetration remains insufficient. Solar energy, as the most abundant clean resource, necessitates advanced materials to address intermittency and low energy density challenges. While phase change materials (PCM) integrating photothermal conversion and thermal storage functions offer critical solutions for energy-efficient buildings, their practical implementation is hindered by inherent limitations: low thermal conductivity compromises heat transfer efficiency, and leakage during phase transitions undermines system reliability. These deficiencies impose fundamental deployment barriers in construction applications demanding precise thermal regulation. To transcend these limitations, we engineer hierarchical mineral microspheres featuring three key innovations: a dual-scale thermal network via synergistic integration of graphite nanosheets and silver nanowires (AgNWs) into porous attapulgite (ATP), where graphite nanosheets establish fundamental heat conduction pathways and AgNWs act as ‘high-speed channels’ to bridge the contact thermal resistance between nanosheets, overcoming conductivity barriers of carbon-only systems; molecular-level leakage confinement through biomimetic sodium alginate/CaCl₂ cross-linking, forming plant cell-inspired core-shell structures; and cement-compatible fabrication enabled by vacuum-assisted PCM loading for direct construction material integration. The optimized composite (P-PVA-AAGC) achieves exceptional thermal storage capacity (melting enthalpy: 112.9 J/g; solidification: 102.2 J/g) and exhibits a 3-fold extension in phase transition duration (35–30 °C) versus P-ATP. Crucially, cement-integrated microspheres demonstrate unprecedented thermal regulation in functional building blocks, validating scalable deployment. This architecture establishes a new paradigm for energy-saving building envelopes and solar thermal systems, enabling high-efficiency thermal regulation in functional building blocks and addressing critical sustainability gaps in construction.
研究领域:
材料科学
·
建筑材料
·
能源材料
·
热工学
·
可持续建筑
·
纳米复合材料
·
太阳能转换
✓ 已验证
产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2022
·
IF 9.224
Haoyang Sun,Ye Yang,Tao Li,Sha Lyu,Fengfan Chen,Maoning Li,Chentao Zhang,Dandan Li,Dazhi Sun
Solid–liquid phase-change materials (PCMs) offer exciting potential for energy conservation, but they suffer from a vital drawback of significant leakage. To overcome this issue, we develop a new strategy to obtain high-performance leakage-proof shape-stable phase-change materials (ss-PCMs) by the combination of an inner porous frame and outer superhydrophobic covers. Paraffin wax as PCM was first trapped into artificially cultured diatom frustule-derived porous ceramics, which was then encapsulated using diatom frustule-based superhydrophobic coatings. The prepared ss-PCMs exhibit a wax loading of 52.28 wt % with a melting enthalpy of 117.5 J·g–1 and a high stability even after 500 thermal cycles as well as a 72.7% increase in thermal conductivity. In addition, the prepared ss-PCMs show a compressive strength of as high as 13.0 MPa. The superhydrophobic coatings provide ss-PCMs with superior chemical resistance and excellent mechanical robustness under long-distance abrasion, cyclic tape-peeling, and water jet impact. This porous ceramic-embedded, superhydrophobic coating-encapsulated strategy for obtaining high-performance ss-PCMs is expected to find potential applications in energy-efficient buildings, thermal management in electronic devices, self-cleaning materials, and so on.
研究领域:
材料科学
·
能源工程
·
纳米技术
·
热管理
✓ 已验证
DOI
高影响因子
Journal of Energy Storage
·
2023
·
IF 9.4
Xiaoyin Cao,Lijuan Yang,Jia Zhang,Zhaoqi Zhu,Jiyan Li,Hanxue Sun,Weidong Liang,An Li
The fabrication of composite phase change materials (CPCMs) is significant for harvesting and converting solar energy. Hence, we first report novel CPCMs based on inorganic multi-shelled hollow spheres (MHS) via a facile hydrothermal method and calcination treatment. 1-Hexadecylamine (HDA) and Octadecylamine (ODA) were incorporated into MHS by a simple impregnation treatment to prepare CPCMs. Owing to its multi-shelled structure, the CPCMs have an outstanding ability of leakage resistance . In addition, the CPCMs themselves exhibit excellent solar absorption of up to 80 % without further surface modification. The thermal conductivity of the CPCMs containing HDA and ODA was increased by 1.03 times and 1.67 times by comparison with that of pure PCMs. The enthalpy of the as-resulted CPCMs is 207.6 J/g and 151.5 J/g, which is higher than most existing CPCMs, and the enthalpy of the CPCMs containing HDA and ODA after 100 times cycles can still attain 110.9 J/g and 104.7 J/g. Under 1sun irradiation, the light-to-thermal conversion efficiency of the CPCMs containing HDA and ODA was measured to be 90.0 % and 92.1 %, respectively. Taking advantage of its inherently physicochemical stability, superior light absorption and thermal conductivity and leakage resistance , scalable and cost-efficient fabrication process, such MHS-based CPCMs may have great potential for a wide variety of applications such as photothermal conversion, solar energy harvesting and storage, and so on.
研究领域:
材料科学
·
能源材料
·
太阳能转换
·
热管理
✓ 已验证
DOI
高影响因子
Small Methods
·
2024
·
IF 10.7
Chao Wan,Longyu Yi,Huijuan Yuan,Shunji Li,Xin Wang,Yuxiao Shu,Han Xie,Mengcheng Lei,Zeyu Miao,Wei Du,Xiaojun Feng,Yiwei Li,Peng Chen,Bi-Feng Liu
In microbiological research, traditional methods for bacterial screening and antibiotic susceptibility testing are resource-intensive. Microfluidics offers an efficient alternative with rapid results and minimal sample consumption, but the demand for cost-effective, user-friendly platforms persists in communities and hospitals. Inspired by the Magdeburg hemispheres, the strategy adapts to local conditions, leveraging omnipresent atmospheric pressure for self-sealing of Rotation-SlipChip (RSC) equipped with a 3D circular Christmas tree-like microfluidic concentration gradient generator. This innovative approach provides an accessible and adaptable platform for microbiological research and testing in diverse settings. The RSC can avoid leakage concerns during multiple concentration gradient generation, chip-rotating, and final long-term incubation reaction (≥24 h). Furtherly, RSC subtypes adapted to different reactions can be fabricated in less than 15 min with cost less than $1, the result can be read through designated observational windows by naked-eye. Moreover, the RSC demonstrates its capability for evaluating bacterial biomarker activity, enabling the rapid assessment of β-galactosidase concentration and enzyme activity within 30 min, and the limit of detection can be reduced by 10-fold. It also rapidly determines the minimum antibiotic inhibitory concentration and antibiotic combined medications results within 4 h. Overall, these low-cost and user-friendly RSC make them invaluable tools in determinations at previously impractical environment.
研究领域:
微生物学
·
生物技术
·
医学诊断
·
药学科学
✓ 已验证
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）