CHEMICAL ENGINEERING JOURNAL
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2021
·
IF 13.273
Min Wu,Liusi Yang,Yuanliang Zhou,Jie Jiang,Lin Zhang,Tingke Rao,Peng Yang,Bilu Liu,Wugang Liao
Currently, massive preparation of boron nitride nanosheets (BNNSs) towards large-size and good structural integrity via ball milling remains a key challenge, limiting its extensive applications in thermal management and energy storage. Low-cost and recyclable BaTiO 3 nanoparticles with good piezoelectric effect can concurrently act as collision buffers and strong reductants to suppress the in-plane crystal structure damage and surface oxidation triggered by high-energy mechanical impact. Herein, an environmentally friendly, simple to operate and easy to realize industrial production method, referred to as BaTiO 3 -assisted ball milling (BTABM), is demonstrated to prepare high quality few-layered BNNSs with an average lateral size of 0.56 μm and a high yield of 91.2%. This milling process involves the synergetic effects of mechanical shear and mechanochemical peeling provided by deformed BaTiO 3 . The incorporation of the prepared BNNSs into the P(VDF-CTFE) matrix by BTABM effectively improved simultaneously the dielectric properties and breakdown strength of the ternary P(VDF-CTFE)/BaTiO 3 /BNNS nanocomposites as well as their thermal management capability, due to the formation of 3D BNNS networks. This novel method provides a guidance for not only scalable exfoliation of other layered 2D materials but also massive fabrication of polymeric nanocomposites applied in high-temperature energy storage devices.
研究领域:
材料科学
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能源存储
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热管理
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产品关联
DOI
高影响因子
CELLULOSE
·
2023
·Vol. 30
·期 8
·5171-5185
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IF 5.7
Zhao Bencheng,Li Chengze,Chen Yongfang,Tian Qiong,Yurekli Yılmaz,Qiu Fengxian,Zhang Tao
To handle the increasingly harsh living space caused by extreme temperatures and floods of electromagnetic waves, wearable materials have been attracting much attention for decades due to their good versatile compatibility and precise utility. In this work, a Janus MXene/cellulose/ZnO nanorods membrane for accurate on-demand personal thermal management and electromagnetic interference shielding was fabricated via hydrothermal treatment and vacuum-assisted filtration, followed by a hydrophobization process. The ZnO nanorod side of obtained Janus membrane exhibits a high visible reflectance (96.3%) and infrared emissivity in the atmospheric window band (0.837). The corresponding visible absorption and average infrared reflectivity (5–25 μm in wavelength) of the MXene side are over 90% and 0.7, respectively. Remarkable temperature differences on both sides (7 °C increment on MXene side and 5 °C reduction on ZnO side compared to bare wooden board) were achieved in the validation test under direct sunshine, reflecting to the great optical properties and radiative thermal management performances of the obtained membrane. Moreover, the water contact angles (≥ 120°) indicated the hydrophobicity and associated stain resistance of this membrane. Active Joule heating and electromagnetic interference shielding characteristics have been successfully introduced into the Janus membrane by means of the integration of MXene. A rapid increase in temperature to 75 °C was attained within a 1 min of low voltage (2 V) applying. The effectiveness of the electromagnetic shielding (~ 30 dB) was higher than the commercial shielding materials. The results in general, provide a promising solution to protecting people from temperature extremes and electromagnetic waves interference in modern living space.
研究领域:
材料科学
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环境科学
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物理学
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产品关联
DOI
高影响因子
RSC Advances
·
2022
·Vol. 12
·期 27
·17217-17227
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IF 4.036
Yuchen Yao,Yuntao Cui,Zhongshan Deng
Phase change materials (PCMs) have attracted more and more attention in the field of energy and thermal management due to the characteristic of exchanging heat with small temperature change. In order to obtain perfect PCMs, previous researchers usually prepared various phase change composites (PCCs), but there is still a gap toward the goal. Perhaps the development of PCMs with adjustable properties in a wide range to meet different needs is a feasible option. Given that the properties of organic PCMs and metal PCMs are highly complementary, using expanded graphite (EG) as a mediator, a stable PCC of octadecane and gallium that are difficult to directly mix, was successfully prepared. Octadecane and gallium are stored in the microstructures of EG, and the microstructures of EG play the role of storing nucleation embryos, and the suppression of supercooling can reach more than 86.82%. The test results showed that the properties of the PCC are indeed a balance between octadecane and gallium, and can be adjusted in a wide range. The PCC also has good structural and chemical stability, which can effectively avoid the corrosion risk caused by gallium leakage. The PCC samples containing equal amounts of gallium and paraffin were selected for thermal management performance tests. The results indicated that the PCC has application potential in related fields, and can provide a reference for the development of other PCCs.
研究领域:
材料科学
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能源工程
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热管理
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产品关联
DOI
PubMed
高影响因子
Journal of Energy Storage
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2025
·
IF 9.8
He Jiang,Jiajun Hu,Pengju Yang,Yian Qian,Tonghua Ma,Renzhong Wei,Yi Zhang,Weisheng Sun,Xi Guo
Phase change materials (PCMs) have demonstrated significant potential in thermal management owing to their substantial thermal energy storage capacity and no need for additional energy consumption. Nevertheless, achieving efficient manufacturing of PCMs with high latent heat storage and superior shape stability remains a formidable challenge. In order to achieve rapid preparation of stabilized phase change material, we design a photo initiated copolymerization crosslinking strategy inside phase change material which combine encapsulation methods of graft copolymerization and porous material adsorption. Compared to traditional thermal polymerization reactions that require heating for several hours, this strategy only requires 20 min of ultraviolet light irradiation. The composite shows excellent enthalpy of 152.64 J/g benefited by the solid-solid phase change material matrix and absorbed octadecane (ODA). Addition of nickel foam (NF) provided a thermal conductivity of 1.094 W/m·K which was 270 % higher than pure composite phase change material. Due to the superior thermal energy storage capacity and thermal conductivity of composites phase change material, the surface temperature of battery in use decreased 4 °C. This work provides a novel approach for large-scale production of high-performance form-stable phase change materials which shows great applying potential in heat management of battery.
研究领域:
材料科学
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高分子化学
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热工技术
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储能
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化学工程
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED MATERIALS
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2025
·
IF 26.8
Xiao-Liang Ge,Su Xu,Tian-Tai Zhang,Zhuo-Tong Li,Jia-Qi Feng,Hang Ren,Dong-Dong Han,Yong-Lai Zhang
Effective thermal management is essential for ensuring the reliability of electronic devices. However, conventional thermal management technologies often require significant space or consume substantial power, which limits system integration and alters the electromagnetic performance, including operating bandwidth and efficiency. Here, a zero-power-consumption, self-adaptive mechanical metasurface is introduced that provides dual-mode thermal management. Composed of liquid crystal elastomer and copper, the periodically arranged units harness a thermally driven strain mismatch between these materials to achieve temperature-dependent structural reconfiguration. This mechano-thermal transduction mechanism passively converts excess heat into mechanical energy, thereby providing efficient thermal management for multiple electronic devices in this experimental demonstration. As a proof of concept, by designing the deep-subwavelength unit cells of metasurface without perturbing the surface current distribution of a Vivaldi antenna, it is shown that the mechanical reconfiguration can be decoupled from electromagnetic functionality, thereby enabling the integration of adaptive thermal management with stable electromagnetic performance. This framework effectively combines multi-physics functionality, encompassing thermal, mechanical, and electromagnetic domains. This work not only reveals a previously unexplored application for stimuli-responsive materials but also holds significant promise for various applications, including advanced communication and wearable systems.
研究领域:
热管理
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智能材料
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超材料
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电磁兼容性
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柔性电子
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可穿戴系统
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天线技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Surfaces and Interfaces
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2024
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IF 5.7
Fengsen Xie,Yajie Wang,Shixun Zhang,Yamin Pan,Chuntai Liu,Changyu Shen,Xianhu Liu
Composite films composed of biodegradable materials possessing flexibility, thermal regulation capabilities, and electromagnetic interference shielding attributes represent optimal selections for wearable items and the packaging of devices. Here, we employ a simple alternating immersion and spray-coating process to fabricate flexible multifunctional films by combining hydrophobic PLA electrospun film with PPy and MXene , and investigate the thermal management and electromagnetic interference shielding properties of the films. Through alternating immersion, PPy can be rapidly in-situ polymerized on the PLA film, enhancing the surface roughness of the fibers, enabling firm integration of MXene with the film. Benefiting from the broad wavelength absorption characteristics of PPy, the solar absorption capacity of the film is significantly enhanced (97.16 %), endowing it with excellent photothermal conversion capability. Meanwhile, the high conductivity of MXene imparts the composite film with controllable and stable active heating ability, meeting heating demands under complex weather conditions. Finally, inspired by origami techniques the electromagnetic interference shielding performance of films with different folding frequencies was compared. It was found that attributed to the increased reflection paths, the film exhibited a significant improvement in electromagnetic interference shielding performance (32.58 dB to 51.96 dB) after folding. In brief, this biodegradable multifunctional composite film is an attractive candidate for future wearable products or devices packaging.
研究领域:
材料科学
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纳米技术
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2024
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IF 13.3
Jun-Heng Fu,Qigong Zhang,Minglei Yan,Wei Tang,Yun Zeng,Yuntao Cui,Mingkuan Zhang,Hongwei Deng,Hao Kang,Xinlong Sun,Liang Qiao,Hongzhang Wang,Yang Zhao
Passive radiative cooling which dissipates heat from surfaces by reflecting sunlight and emitting radiation towards outer space, has garnered growing attention as an eco-friendly cooling strategy with zero-energy consumption. However, few studies focus on low-cost and multifunctional composite film fabricated by a straightforward and environmentally friendly method that is crucial for their large-scale applications. Herein, we introduce a facile, efficient, and scalable approach to fabricate a hydrophobic and polymer-dielectric poly (vinylidene fluoride)-hexafluoropropylene (P(VDF-HFP)@PVA hydrogel Janus film (DPP), exhibiting exceptional radiative cooling and thermal management capabilities for diverse practical applications. With the introduction of ZnO, DPP showcases the optical capability with a solar reflectance of ≈93 % and an infrared emittance of ≈96 %, endowing it with remarkable radiative cooling performance. The synergistic integration of hydrogel phase change and radiation cooling capabilities offered by the P(VDF-HFP) layer enables the DPP to achieve a subambient cooling of 8.62 °C under direct sunlight. Moreover, when applied to the thermal management of electronic devices and fruit preservation due to the phase change property, the DPP effectively reduced surface temperatures by 10 °C and 15.5 °C respectively. Its simplicity and versatility suggest that it could be widely adopted for daytime passive radiation cooling, thereby expanding its practical applications across various fields.
研究领域:
材料科学
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能源与环境科学
✓ 已验证
产品关联
DOI
高影响因子
Energy Storage Materials
·
2025
·
IF 20.2
Haiwei Han,Feng Xiong,Mulin Qin,Yongkang Jin,Hsing Kai Chu,Shenghui Han,Kaihang Jia,Ali Usman,Song Gao,Ruiqin Zhong,Zhenghui Shen,Ruqiang Zou
The safety of high-energy density batteries remains a significant challenge due to the risk of thermal runaway, which can result in catastrophic damage. Phase change materials (PCMs) can absorb heat and regulate temperature through reversible phase transitions, effectively mitigating the risk of thermal runaway and offering a reliable solution for battery thermal management. However, achieving effective flame retardancy in PCMs, particularly under thermal runaway conditions, remains a challenge. In this work, we report a solid-solid PCM with high flame retardancy. Phosphorus-based flame retardant groups are grafted onto a polyurethane skeleton via a straightforward and cost-effective synthesis process, achieving an intrinsic flame retardancy (LOI = 30.2 %) and a high phase change enthalpy (78.7 J/g), along with good mechanical flexibility and strength (6 MPa) with only 5 wt.% flame retardant. These advanced properties enable the material to maintain the working temperature of 18,650 batteries below 55 °C during high current operation, reduce the peak runaway temperature by 405 °C during thermal runaway, and delay ignition by 59 s. These improvements significantly enhance the safety of batteries and protect people and property.
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
CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Houbao Liu,Wei Wang,Zhenbang Cheng
Effective thermal management materials are crucial for modern electronics, aerospace, and energy applications. This study investigates a novel approach by constructing a Si₃N₄ skeleton with a triply periodic minimal surface (TPMS) structure and reinforcing phase change materials (PCM) with boron nitride (BN) to develop Si₃N₄@BN/PCM composites that exhibit enhanced thermal conductivity, thermal stability and electrical insulation. Utilizing digital light processing 3D printing, a Si₃N₄ TPMS structure was prepared and subsequently reinforced with BN via vacuum-assisted infiltration into PCM. The incorporation of 3D Si₃N₄ skeleton and 2D BN flakes created a dual-scale network within the PCM, significantly increasing thermal conductivity from 0.24 W/m·K to 2.04 W/m·K. The presence of Si₃N₄ and BN notably improved thermal stability and reduced the coefficient of thermal expansion. Additionally, electrical insulation properties improved with an increase in volume resistivity and breakdown strength to 5.1 × 10 1 ⁴ Ω·cm and 62.4 kV/mm, respectively. This work demonstrates that Si₃N₄@BN/PCM composites effectively integrate high thermal conductivity, stability, and electrical insulation, thereby meeting the stringent demands of thermal management applications.
研究领域:
材料科学
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热能工程
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2022
·
IF 10.383
Hong Cao,Yuan Li,Weidi Xu,Jie Yang,Zhengying Liu,Lu Bai,Wei Yang,Mingbo Yang
Phase change materials (PCMs) as one of the most potential latent heat storage techniques have been widely used for thermal management and energy storage. However, simultaneously imparting flexibility, high thermal conductivity, and considerable energy storage density to organic PCMs remains challenging. In this work, a coupling strategy combining substance exchange and magnetic orientation has been proposed to fabricate phase change gels (PCGs) with thermally induced flexibility and high through-plane thermal conductivity. In the PCGs, synthesized boron nitride/ferroferric oxide (BN@Fe3O4) particles and polyacrylic acid (PAA) precursor liquid are introduced to polyethylene glycol (PEG) aqueous solution, and a magnetic field is applied in the process of PAA network construction to promote ordered arrangement of BN@Fe3O4 along the direction of the magnetic field. Consequently, PEG is wrapped by the cross-linked PAA supporting network, forming PCGs with excellent shape stability and thermally induced flexibility. The vertical orientation structure of BN@Fe3O4 endows the PCGs with an enhanced through-plane thermal conductivity of up to 1.07 W m–1 K–1 at a BN@Fe3O4 loading of 25.6 wt % with an additional enhancement of 215% compared to the composite without BN. The thermally conductive leakage-proof PCGs present great application potential in heat storage and management.
研究领域:
材料科学
·
能源工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Gels
·
2023
·Vol. 9
·期 4
·317
·
IF 4.6
Linlin Xie,Xiaoxu Wu,Guichao Wang,Yury M. Shulga,Qiong Liu,Ming Li,Zhi Li
To address the leakage issue of paraffin phase-change materials in thermal management, a monolithic MTMS-based silica aerogel (MSA) is employed to encapsulate paraffin through a facile impregnation process. We find that the paraffin and MSA form a physical combination, with little interaction occurring between them. The prepared no-leakage paraffin/MSA composites have a density of 0.70 g/cm3and exhibit good mechanical properties and nice hydrophobicity, with a contact angle of 122°. Furthermore, the average latent heat of the paraffin/MSA composites is found to reach up to 209.3 J/g, about 85% of the pure paraffin’s latent heat, which is significantly larger than other paraffin/silica aerogel phase-change composite materials. The thermal conductivity of the paraffin/MSA remains almost the same as that of the pure paraffin (~250 mW/m/K), without any heat transfer interference from the MSA skeletons. All these results indicate that MSA can effectively serve as a carrier material for encapsulating paraffin, which is beneficial for expanding the applications of MSAs in thermal management and energy storage.
研究领域:
材料科学
·
能源工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Energy Chemistry
·
2024
·
IF 14
Jiyuan Yu,Jian Zheng,Wei Wang,Zhijia Zhu,Chunyan Hu,Baojiang Liu
Nowadays, the global climate is constantly being destroyed and the fluctuations in ambient temperature are becoming more frequent. However, conventional single-mode thermal management strategies (heating or cooling) failed to resolve such dynamic temperature changes. Moreover, developing thermal management devices capable of accommodating these temperature variations while remaining simple to fabricate and durable has remained a formidable obstacle. To address these bottlenecks, we design and successfully fabricate a novel dual-mode hierarchical (DMH) composite film featuring a micro-nanofiber network structure, achieved through a straightforward two-step continuous electrospinning process. In cooling mode, it presents a high solar reflectivity of up to 97.7% and an excellent atmospheric transparent window (ATW) infrared emissivity of up to 98.9%. Noted that this DMH film could realize a cooling of 8.1 °C compared to the ambient temperature outdoors. In heating mode, it also exhibits a high solar absorptivity of 94.7% and heats up to 11.9 °C higher than black cotton fabric when utilized by individuals. In practical application scenarios, a seamless transition between efficient cooling and heating is achieved by simply flipping the film. More importantly, the DMH film combining the benefits of composites demonstrates portability, durability, and easy-cleaning, promising to achieve large-scale production and use of thermally managed textiles in the future. The energy savings offered by film applications provide a viable solution for the early realization of carbon neutrality.
研究领域:
材料科学
·
能源工程
✓ 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）