Advanced Materials Interfaces
·
2024
·
IF 4.3
Yuanting Deng,Feng Du,Zongbao Chen,Pengyu Lv,Zuozhu Yin,Ming He,Mingshan Xue,Hongyuan Li
Superhydrophobic surfaces offer notable advantages, including markedly low water affinity and reduced ice adhesion strength. Nevertheless, their practical utility is impeded by their limited durability and vulnerability to failure in cold and humid environments. In this study, a novel approach for devising an electro-photothermal superhydrophobic (EPS) nanocomposite coating is presented. The findings indicate that the EPS nanocomposite coating exhibits both physical and chemical self-cleaning attributes, showcasing a synergistic interplay of superhydrophobicity, electrothermal, and photothermal characteristics. The superhydrophobic coating delays icing about four times longer than the original coating. At ambient temperatures of −20 °C, the coating stacked with an electro- and photo-thermal performance de-icing layer reduces the de-icing time by about 5 times more than the purely photo-thermal performance de-icing time, and reduces the de-icing time by about 4 times more than the purely electro-thermal de-icing time. Furthermore, the EPS surface demonstrates the capability to sustain temperatures above 0 °C through the photothermal effect on sunny days, utilizing both the electrothermal and photothermal effects on cloudy days, and relying on the electrothermal effect during cold nights. The research introduces a novel method for fabricating functional materials, pertinent to practical anti-icing and de-icing applications.
研究领域:
材料科学
·
表面工程
·
能源技术
✓ 已验证
产品关联
DOI
高影响因子
iScience
·
2024
·
IF 4.6
Tonghui Lu,Xianglin Li,Mengying Lu,Wenhao Lv,Wenzhuo Liu,Xuanchen Dong,Zhe Liu,Shangzhen Xie,Song Lv
Anti-icing and de-icing are vital for infrastructure maintenance. While carbon-based materials with photothermal or electrothermal effects have advanced, they face challenges like environmental dependence, poor resistance, high energy consumption, and complex manufacturing. Here, we developed a scalable, hybrid metamaterial driven by photothermal/electrothermal for all-weather anti-icing/de-icing. Its nanostructured surface delays icing by 360 s at −30°C, breaking records across a wide temperature range. The porous structure enhances light absorption, achieving a delayed icing time of 2500 s at −20°C under one sunlight. The graphene film’s high conductivity allows rapid de-icing with 1.6W power. After 720 h of outdoor exposure, the metamaterial retained a contact angle above 150°, confirming durability. More critically, we have demonstrated that the metamaterial can be manufactured on a large scale, which is essential for improving the economics of the anti-icing/de-icing sector.
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
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Yidan Zhang,Zhiguang Guo
Multifunctional wearable textiles can simulate human perception and convert it into visual data, which has advanced application prospects. As an important branch, thermal management wearable textiles have been widely concerned in the aspects of thermal insulation, flame retardant, photothermal anti-icing, electrothermal deicing and even water evaporation. Here, inspired by the bearing structure, we simply soaked the PET textile in Ag@MXene hybrid solution several times to form a Ag@MXene conductive network with Ag NPs as the connection point on the textile fiber, and finally carry out hydrophobic modification. Based on plasma effect, the synergistic action of Ag NPs and MXene enhances the photothermal response of the material. In addition, the addition of Ag NPs effectively reduces the stacking between MXene layers and forms a Ag@MXene conductive network with Ag NPs as the connection point on the textile fibers. The stable temperature range of PDMS/Ag@MXene PET textile is 70–80 °C under one solar illumination intensity, and the stable temperature of PDMS/Ag@MXene PET textile can reach 117 °C at a constant voltage of 3 V. Based on the excellent thermal effect, this textile achieves photothermal anti-icing, electric thermal de-icing, keeping warm and removing sweat. The textile has a water evaporation efficiency of about 0.58 g h −1 , which can achieve excellent anti-sweat function. Finally, the textile also achieved rapid flame retardant within 7 s. PDMS/Ag@MXene PET textile processes excellent photothermal and electrothermal conversion ability, acid/water stability and flame retardant ability, and has promising application prospects in thermal management textiles such as deicing and anti-icing, fire prevention, warmth and water evaporation.
研究领域:
材料科学
·
纺织工程
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
Nanoscience and Nanotechnology Letters
·
2017
·Vol. 9
·期 4
·556-561
·
IF 1.889
Hu Jun,Dehsorkhi Ashkan,Al-Jamal Wafa T.,Zhang Yan,Chen Siying,Yang Chuanyu,Tan Dan,Zhao Qing,Yang Chang,Wang Yonglin
We reported the photothermal studies on the PEGylated Fe3O4 nanoparticles. In our study, we prepared a series of PEGylated Fe3O4 nanoparticles with different formulations and found that all the PEGylated Fe3O4 nanoparticles
have both the photothermal conversion effect and magnetic hyperthermia. We first tried to illustrate the importance of photothermal effect and magnetic heating in the hyperthermia of Fe3O4 nanoparticles, and describe the relationship between the structures and functions.
Among these samples, there were two different structures. One is a similar colloidal nanostructure, while the other is a typical nanoparticle structure. Both of them have the similar ultraviolet-visible absorption spectra, Fourier transform infrared spectra and X-ray diffraction patterns.
However, the second nanoparticles have higher photothermal conversion efficiency and magnetic resonance imaging contrast than the first colloidal nanostructures. Moreover, by transmission electron microscopy, we found that when the core diameter was in the range of 19–20 nm, the temperature
change was above 28 C by photothermal effect, while the magnetic heating was low. All these results not only help us have more comprehensive understanding of Fe3O4 nanoparticle properties, but also provide a rational theoretical support for applying Fe3O4
nanoparticles as a suitable candidate in the photothermal treatment.
研究领域:
纳米医学
·
生物医学工程
·
材料科学
✓ 已验证
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2024
·
IF 6.5
Qian Chen,Xixun Shen,Zuogui Zhang,Qunjie Xu
To solve the problem of icing on the wind turbine blades, here an anti-icing coating composed of PDMS and PVDF as organic bonding frameworks, GPE, MWCNTs , and modified SiO 2 nanoparticles as functional doping phases is synthesized through a one-step spraying method. The coating exhibits excellent superhydrophobic properties with a large contact angle of about 167.0° and a low sliding angle of4.0° and excellent photothermal and electrothermal properties. Under light and electric heating conditions, the coating can be rapidly heated to a high temperature level of about 68.4 °C at 81 s and 48.5 °C at <61 s, respectively. The static water droplet icing experiment shows that the coating can effectively delay the freezing time and reduce the adhesion strength of ice. The freezing rain experiment further showed that under the coordination of photothermal and electrothermal, freezing rain droplets will not freeze on the coating, indicating an excellent anti-icing ability. Meanwhile, the coating also exhibits a superior de-icing ability under the coordination of photothermal and electrothermal. In addition, various performance experiments, including acid and alkali immersion, friction and wear, and impact experiment are also performed to demonstrate the excellent stability and durability of the coating.
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
Journal of Environmental Chemical Engineering
·
2023
·
IF 7.7
Jiale Zhou,Kunquan Li,Zhuohan Chen,Xiaojing Su,Huali Xie,Lei Yao,Yunhui Wu,Xiaofan Zhang,Lu Chen,Xuting Wu,Wenjian Wu
Functional membranes with electrothermal/photothermal effects are considered an effective method for separating water/viscous crude oil mixtures. However, the loading of photothermal and electrothermal particles in polymeric membranes with poor compatibility will deteriorate the membrane performance, leading to the unstable photothermal/electrothermal effects. Therefore, we prepared a hydrophobic sandwich structure polyvinylidene fluoride/reduced graphene oxide/polydimethylsiloxane (PVDF/rGO/PDMS) composite membrane using a two-step electrospinning process, which improved the binding force between the photothermal/electrothermal particles and the matrix with the composite membrane exhibiting super fast electric heating and photothermal effect. The temperature of the composite membrane surface rapidly reached to 162.5 °C within 30 s at 25 V. In addition, the addition of graphene (GO) improved the mechanical properties of the composite membrane. Meantime, the composite membrane possessed stable hydrophobicity and lipophilicity, which was beneficial for separating water/viscous crude oil mixtures. Owing to the controllable pore structure and special wetting behavior, the water-in-oil emulsion was successfully separated. Importantly, the separation rates of the water/crude oil mixtures under the electrothermal effect was 2340 kg·m −2 ·h −1 ·bar −1 . Thus, this study provides a new method for preparing hydrophobic sandwich-like PVDF/rGO/PDMS composite membrane with electrothermal/photothermal effects, which has significant potential for engineering applications in high-viscosity crude oil removal and water-in-oil emulsion separation.
研究领域:
材料科学
·
环境工程
✓ 已验证
产品关联
DOI
高影响因子
Advanced Materials Technologies
·
2024
·
IF 6.4
Min Wang,Minhan Cheng,Chuanliang Chen,Qiang Fu,Hua Deng
Solar-driven interfacial water evaporation technology is considered as a promising clean water production strategy addressing the issues of global water pollution and scarcity. In this study, highly efficient polyvinyl alcohol/carbon nanotube/polypyrrole (PVA/CNT/PPy) aerogel evaporator is fabricated by combining hydrophilic PVA aerogel with superior water absorption property and carbon-based fillers with coupled photo-thermal conversion effects. By regulating the pore structure of PVA aerogel, the capillary effect is enhanced, thereby optimizing the water transport rate. Based on the photo-thermal effect, the evaporation rate of the evaporator under one standard solar irradiation (1 kW m −2 ) is 3.17 kg m −2 h −1 . Additionally, after the input of electrical energy, the heat converted from light absorbed by carbon-based material can promote the Joule heating effect, and the synergistic effect further increases the evaporation rate of the aerogel to 5.59 kg m −2 h −1 when subjected to one solar irradiation combined with a 5 V input voltage. This electro-thermal assistance enables efficient water evaporation even in low-light and dark conditions. Furthermore, the PVA/CNT/PPy aerogel evaporator demonstrates significant potential in terms of desalination performance and long-term stability.
研究领域:
材料科学
·
环境科学
·
能源科学
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2024
·
IF 18.5
Xiaoxiang Wen,Yifan Yue,Changxing Wang,Jinxia Zhang,Yuechi Xie,Yayun Ning,Jianing Li,Xuegang Lu,Sen Yang
Biomimetic optical devices based on cellulose nanocrystals with tunable structural colors have received significant attention recently. However, the limited ability to control multicolor separation beyond simple single-color modulation restricts its practical applications. Here, a diversified multicolor separation strategy for the cholesteric phase cellulose composite (CPCC) is presented. The CPCC is prepared by integrating a high-concentration self-assembled hydroxypropyl cellulose with a cross-linked poly(acrylic acid-acrylamide) (P(AA-AM)) network. By adjusting the cross-linking degree of P(AA-AM) in CPCC, Thermally induced multicolor separation is achieved from a homochromatic state at room temperature to multicolor patterned display at elevated temperatures. Furthermore, by utilizing the electric heating effect of conductive carbon oil, the multicolor separation under low voltage is achieved, and based on this, pixelated electro-thermochromic displays are developed. Additionally, magneto-thermal multicolor separation induced by introducing FeNi 3 nanoparticles is investigated with efficient magnetic induction heating ability into CPCC. The multicolor separation effect is further improved by pixelated distribution of FeNi 3 nanoparticles and adjusting the concentration of FeNi 3 in each pixel. Finally, thermochromism, electro-thermochromic, and magneto-thermochromic functionalities are integrated into the CPCC, achieving advanced multilevel information encryption. This multilevel approach of controlling multicolor separation significantly enhances the functionality of nanocellulose in various potential photonic applications.
研究领域:
材料科学
·
生物仿生学
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
APPLIED THERMAL ENGINEERING
·
2024
·
IF 6.1
Yunyun Meng,Suli Xing,Nan Wu,Peipei Zhang,Xin Cui,Xiubing Liang,Song Wang,Binrui Wu
Fiber-reinforced polymer-based composites have been used widely in engineering structural components but suffer from ice accretion issues. Assembling a straightforward electrothermal anti-icing/deicing system that combines passive superhydrophobic and photothermal effects to alleviate energy shortages is considered the most practical strategy. However, the instability of superhydrophobicity often causes compromising anti-icing performances. In addition, little is known about how to evaluate the effectiveness of these passive technologies and optimize active power supply strategies. In this study, a versatile fiber-reinforced polymer-based composite was fabricated by integral molding with superhydrophobic and electro/photothermal film. Based on the tailorability of surface temperature, a quantitative method was developed to evaluate the passive anti-icing technology. The superhydrophobic and photothermal effects were proven to reduce electrical energy consumption by 73.6%, which was further declined to 96% after optimizing the anti-icing/deicing power supply strategy. Additionally, the textures and porosity of the spraying substrate were highlighted to enhance the superhydrophobic durability. The fabricated robust and versatile fiber-reinforced polymer-based composite shows promise for use in controllable anti-icing/deicing of engineering components, such as unmanned aerial vehicles and wind turbine blades.
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
FOOD HYDROCOLLOIDS
·
2019
·
IF 5.839
Dan-Dan Li,Na Yang,Yang Tao,En-Bo Xu,Zheng-Yu Jin,Yong-Bin Han,Xue-Ming Xu
The mechanism of induced electric field (IEF)-assisted acid hydrolysis was investigated by using guar gum, chitosan, and pectin as model polysaccharides . Roles of thermal and non-thermal effects were explored by temperature determination, HPSEC-MALLS-RI, SEM, FT-IR, XRD, and a rheometer. Results suggested that IEF affected the hydrolysis of polysaccharides by inducing thermal and non-thermal effects. Thermal effect contributed to the hydrolysis. As the excitation voltage increased, the thermal effect enhanced, with a temperature increased by about 25 °C after IEF (75 V) treatment for 4 h. Non-thermal effect, induced by the rapid and directional migration of charged species, varied with the electrical properties of the polysaccharides. It enhanced the hydrolysis of guar gum and pectin but negatively impacted the chitosan due to their different migration directions under IEF. IEF-assisted hydrolysis damaged the structural compactness of polysaccharides and significantly decreased the viscosity of their solutions. This study clarified the hydrolysis mechanism of polysaccharides under IEF, providing a theoretical guide for the application of IEF in the chemical modification of biopolymers.
研究领域:
食品科学
·
化学工程
·
生物技术
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry A
·
2018
·Vol. 6
·期 35
·16910-16919
·
IF 9.931
Xiaojing Su,Hongqiang Li,Xuejun Lai,Zhipeng Yang,Zhonghua Chen,Wenjian Wu,Xingrong Zeng
The fabrication of functional superhydrophobic surfaces that combine various performances for the emerging application horizons such as deicing and self-propelled machines remains challenging. In the present work, a vacuum-assisted layer-by-layer superhydrophobic carbon nanotube film integrating the electrothermal effect with photothermal performance was fabricated by vacuum-assembling a multilayer of carboxylated and aminated multiwalled carbon nanotubes ((MWCNTs-COOH/MWCNTs-NH2)n), followed by transferring onto a desired substrate coated with an ethylene-vinyl acetate (EVA) copolymer and modifying with n-octadecylamine (ODA) through the amidation reaction. Using a filtration membrane as a template, the multiwalled carbon nanotube (MWCNT) film displayed micro–nano hierarchical roughness in support of superhydrophobicity with a CA of 165°. Importantly, the MWCNT film also served as a functional heater under an applied voltage or different light sources. Utilizing the electrothermal effect and water repellency, the superhydrophobic MWCNT film was successfully applied in high-speed deicing. Additionally, combining the surface tension gradients generated by photothermal performance with reduced drag on the water surface, the superhydrophobic MWCNT film was propelled to move linearly, curvilinearly, and rotationally. These findings conceivably stand out as a new tool to fabricate functional superhydrophobic films with electrothermal and photothermal effects for various potential applications.
研究领域:
材料科学
·
表面工程
·
能源技术
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry A
·
2023
·Vol. 11
·期 14
·7711-7723
·
IF 11.9
Min Wang,Xuezhong Zhang,Chuanliang Chen,Yong Wen,Qichao Wen,Qiang Fu,Hua Deng
Solar-powered interfacial water evaporation is thought as a promising strategy for clean water production to tackle global water pollution and scarcity. Nevertheless, the water evaporation rate under all-weather conditions still needs to be improved. Herein, we report an effective approach to develop an integrated photo-electro-thermal steam generation system consisting of aramid-based aerogels that illustrate high evaporation rate under 1 sun (1 kW m−2) illumination and can also carry out water evaporation effectively in low-light or dark environments. The porous aerogel evaporators with high conductivity are composed of aramid nanofibers (ANFs) and carbon nanotubes (CNTs) coated with in situ synthesized polypyrrole (PPy). Based on the photo-thermal effect and electro-thermal effect simultaneously, the evaporators ensure efficient all-weather water production. The evaporation rate of the photo-electro-thermal system reaches 4.71 kg m−2 h−1 with 1 sun radiation and an input voltage of 5 V, while the rate is 2.81 kg m−2 h−1 under only 1 sun illumination. Meanwhile, the system also shows promising potential in salt tolerance and dye wastewater treatment.
研究领域:
材料科学
·
环境科学
✓ 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）