Surfaces and Interfaces
·
2024
·
IF 5.7
Guolong Li,Xi Wang,Fengcai Zhang,Liang Yin,Di Zhang,Kaiying Zhao,Zhibin Zhang,Xiaoming Qian,Yaming Jiang,Songnan Zhang
Ice can lead to inconvenience and disasters in human activities, making it a widely concern for researchers to find solutions to prevent icing. Hydrophobic materials have been developed for passive anti-icing with a long time, but without active deicing effect. Recently, researchers have explored hydrophobic photothermal materials with passive anti-icing and active deicing ability, which are limited on cloudy days and the night. Consequently, developing materials with anti-icing/icephobic and deicing capabilities for all-weather use has emerged as an innovative strategy. This paper develops hydrophobic PDMS/Cu-Ni@PET with photo/electric thermal properties to support all-weather anti-icing/icephobic and deicing, which is synthesized using copper-nickel and hydrophobic polydimethylsiloxane (PDMS). The PDMS/Cu-Ni@PET exhibits an outstanding anti-icing performance with a delayed icing time of 1224 s at -10 °C, and achieves a surface equilibrium temperature of 68.9 °C under 1 sunlight intensity, enabling the melting of surface ice particles within 614 ± 118 s. When a voltage is applied to both sides of the fabric, the equilibrium temperature can be reached within 60 s, and attained 158 °C at 6 V, enabling the melting of surface ice within 97 s. It provides a novel approach for developing photo/electric thermal superhydrophobic coatings that can maintain all-weather deicing performance.
研究领域:
材料科学
·
能源科学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Jiamin Zhou,Shengduo Xu,Yi Shuai,Qiang Sun,Huangshui Ma,Chao Wang,Haijuan Wu,Shanshan Tan,Zegao Wang,Lei Yang
Broadband photodetectors that can decipher the wavelength (λ) and intensity (I) of an unknown incident light are urgently demanded. Photothermoelectric (PTE) detectors can achieve ultrabroadband photodetection surpassing the bandgap limitation; however, their practical application is severely hampered by the lack of deciphering strategy. In this work, we report a variable elimination method to decipher λ and I of the incident lights based on an integrated Ag2Se film-based PTE detector. Nanostructured Ag2Se films with controlled thickness are synthesized using an ion sputtering of Ag and a room-temperature selenization method and then assembled into a detector. Under identical illumination, Ag2Se films of different thicknesses produce varying output photothermal voltages, influenced by factors including λ. By establishing a direct relationship between the photothermal voltage and the absorption of Ag2Se films of varied thickness, we successfully eliminate variables independent of λ, thus determining λ. Subsequently, I is determined by the calibrated responsivity relationship using obtained λ. Our PTE detector achieves a broadband spectrum from 400 to 950 nm and high accuracy, with deviations as low as ∼2.63 and ∼0.53% for deciphered λ and I, respectively. This method allows for self-powered broadband decipherable photodetection without a complex device architecture or computational assistance, which could boost the research enthusiasm and promote the commercialization of PTE broadband detectors.
研究领域:
材料科学
·
光学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2020
·
IF 8.758
Xuefei Zhang,Ting-Ting Li,Hai-Tao Ren,Hao-Kai Peng,Bing-Chiuan Shiu,Yanting Wang,Ching-Wen Lou,Jia-Horng Lin
To simply and effectively enhance the conversion capability of wearable thermoelectric textiles, a two-step in situ method is adopted to fabricate dual-shell photothermoelectric textiles which is made of polypropylene fibers with a photo-thermal layer (PPy) and a thermoelectric layer (PEDOT:Tos). The PPy is tailored to achieve high temperature and photothermoelectric effects. The PPy layer can significantly increase the photothermal conversion efficiencies of as-prepared fabric. The optimized photothermoelectric fabric can improve the generated voltage output from 294.13 to 536.47 μV under the infrared light, and its power density is up to 13.76 nW·m–2. A flexible photothermoelectric strip composed of as-prepared fabric coated with Ag particles and textile substrates with low thermal conductivity shows a voltage output of 2.25, 0.677, and 0.183 mV and a power output of 0.7031, 0.0636, and 0.0049 nW under IR light, sunlight, and on the arm, respectively. The photothermoelectric fabrics display potential as to a new smart wearable device for converting light and electricity.
研究领域:
材料科学
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能源材料
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纳米技术
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纺织工程
·
可穿戴技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2023
·
IF 6.6
Kunquan Li,Jiamin Xiang,Jiale Zhou,Xiaojing Su,Huali Xie,Shaoze Lin,Zihao Xiao,Weijun Huang,Chongrui Zhao,Huiru Chen,Wenjian Wu
Superhydrophobic material has great potential applications in the field of anti-icing due to its special wettability . However, the poor wear resistance of the material has restricted its practical applications. Based on this, a simple two-step spray method was used to prepare a self-healing and robust superhydrophobic coating with excellent photothermal/electrothermal effect for anti-icing using epoxy modified ethylene octene copolymer (POEG) resin as the substrate layer and the fluorinated carbon black as the top coating. Results showed that the obtained composite coating showed multi-level rough structure and possessed excellent superhydrophobicity toward water droplets with different pH. Meanwhile, the composite coating could resist abrasion and kept superhydropbobicity even 250 cycles abrasion test with a water contact angle higher than 150 o . When the surface was subjected to the intense abrasion, the rough structure and the superhydrophobic property of the surface were destroyed. However, it could be restored by the abrasion of the rougher surface. In addition, the scratches on the surface could be completely repaired by the heat treatment, indicating the good self-healing performance of the composite coating. Due to the existence of the carbon black particles, the superhydrophobic coating had good photothermal/electrothermal effects, which endowed the surface with excellent anti-icing performance of removing the icing under the conditions of electrothermal and light. This paper provides a simple and convenient way to prepare functional self-healing superhydrophobic coating, and a new idea for the preparation of anti-icing coating.
研究领域:
材料科学
·
表面工程
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Polymer Materials
·
2024
·
IF 4.4
Xiaoxuan Fan,Mei-Chen Lin,Xiaoyang Zhang,Xuefei Zhang,Bing-Chiuan Shiu,Jia-Horng Lin,Ching-Wen Lou,Ting-Ting Li
In this paper, solar energy can be absorbed by introducing PPy (polypyrrole) as an absorber layer on hydrophilically treated polypropylene nonwoven (PPDA). T organic/inorganic P-type thermoelectric materials PEDOT (poly 3,4 ethylene dioxythiophene) and CuI (cuprous iodide) were subsequently introduced as thermoelectric layers to obtain a multistage core–shell structure of PPDA–PPy-PEDOT/CuI photothermoelectric fabric to harvest thermal and water energy and convert it into electrical energy. The introduction of PPy as an absorber layer can effectively increase the surface temperature of thermoelectric fabrics under light and, with the thermoelectric layer, can form a double energy filtering system to improve the Seebeck coefficient. Finally, the PPDA–PPy-PEDOT/CuI photothermoelectric fabric was assembled to obtain a photothermoelectric panel, which could reach about 6.6 mV when tested under infrared light, and the photothermoelectric panel was tested under a wet condition with infrared light and heat; the photothermoelectric effect in concert with hydrovoltage effect could reach about 110 and 73.94 mV when tested under outdoor sunlight. This study achieves the conversion of thermal and water energy to electrical energy by the synergistic effect of photothermoelectric effect and water voltaic effect, which provides an idea for the sustainable development of green in the wearable field.
研究领域:
材料科学
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能源工程
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纳米技术
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可持续发展
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电气工程
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纺织工程
✓ 已验证
产品关联
DOI
高影响因子
Environmental Science-Nano
·
2022
·Vol. 9
·期 5
·1685-1698
·
IF 9.473
Muhammad Sultan Irshad,Xianbao Wang,Naila Arshad,M. Qasim Javed,Tariq Shamim,Zhenzhen Guo,Hong Rong Li,Jianying Wang,Tao Mei
The inadequate supply of water and energy in remote areas poses a risk to human life, which can be overcome via the use of portable solar-driven evaporation setups. However, they involve energy-intensive techniques and salt-accumulation is still a significant barrier for large-scale solar steam generation applications. Herein, we report the preparation of bifunctional in situ-polymerized MnO2@PPy nanocomposites (NCs) for nano-enabled solar evaporation followed by chemical convection and enhanced generation of photo-thermoelectricity. The novel evaporation structure design is composed of super hydrophilic MnO2@PPy NC/two-phase crafted polyurethane wicks for the convective transport of water and polyethylene terephthalate (PET) foam for excellent thermal management. This work presents, for the first time, real-time experimental and simulated proof of a salinity gradient through convective flow, which is a promising solution for synchronous salt-rejection and intensified interfacial heat accumulation (42.8 °C) to generate vapor under 1 kW m−2 at a rate of 1.69 kg m−2 h−1 and actually yield freshwater at a rate of 12.31 kg m−2 per day. The state-of-art photo-thermoelectric performances revealed an enhanced output power density (Pout ∼ 12.3 W m−2) and open circuit current (Iout ∼ 61.3 mA) under 1 kW m−2 solar irradiation, which are higher than that of other nanogenerators. More importantly, for the first time, numerical heat transfer and computational fluid dynamics (CFDs) simulations were successfully performed to study the salt-resistant mechanisms by computing the hot brine mass flux via chemical convection. Our work will further accelerate the distillate rate or zero liquid discharge phenomenon for the practical implementation of solar-driven seawater desalination and a clean source of energy generation.
研究领域:
材料科学
·
能源工程
·
环境科学
✓ 已验证
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2024
·
IF 7.4
Chunhong Nie,Huan Du,Yupeng Zhang,Jiangrui Yang,Wenfei Wang,Rui Mo
The stability of the emulsified oil/water mixture depends on the strength and tightness of the interface, which is closely related to the adsorption and close packing of the active components on the interface. The core task of demulsification is to change the interface properties to enhance efficient oil-water separation. In this study, a coupling model of photo field, thermo field, and electro field was constructed to focus on fully considering the particularity of the demulsification, while improving the utilization efficiency of solar energy by presetting and matching a variety of energy flows and sub-processes. Taking oil/water emulsion from the ASP flooding as an example , the oil removal rate of 82.27% can be obtained, and efficient energy modes, namely high-intensity thermo field, uniform photo field and low-intensity electro field, are established. At the same time, the results show that the photo-thermo-electro field changes the properties of the oil-water interface, such as the interfacial tension, zeta potential and modulus. The mechanism of solar demulsification is that the solar thermal effect changes the motion state of the molecules at the interface, the coupling electro effect drives the migration of charged droplets and the stretching or deformation of the polymer chain, which combined with the photo field to degrade the polymer at the interface. Solar demulsification not only enables innovation in the form of energy and promotes its sustainable development, but also provides a green process in which solar thermo, photo, and electro are synergistically combined to achieve demulsification.
研究领域:
环境科学
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能源科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2025
·
IF 7.3
Di Zhang,Ruirui Zhao,Guolong Li,Kai Yue,Jingyuan Zhao,Songnan Zhang
Icing is a natural phenomenon, and it is unavoidable, leading to severe economic issues and endangering life safety, especially icing over the aircraft fuselage. Hence, it is highly desirable to adopt effective method to address it. Wherein, the construction and modification of hydrophobic coating is a promising way. In this study, the aluminum-based photothermal/electrothermal composite hydrophobic coating with excellent performance was fabricated by facile spraying of epoxy resin, graphene, polydimethylsiloxane and gaseous nano-silica over etching Al. This coating displayed excellent hydrophobicity, with a water contact angle of 137.4°, which effectively delayed the freezing time of droplets on the cold platform at −10 °C to 360 s. Notably, the superior electrothermal performance enabled the temperature to reach to ca. 80 °C at the voltage of only 1.8 V, melting the ice particle in 164 s and the ice layer with 3 mm thickness in 360 s under the voltage of 1.5 V. Besides, at 1 sunlight intensity, the photothermal effect realized the surface temperature of ca. 45 °C, and the ice layer with 3 mm thickness was melted within 460 s. The multi-effect deicing coating also exhibited excellent photothermal/electrothermal stability and self-cleaning ability. These findings raise new possibilities for the design and development of metal substrate anti-icing/deicing functional coating material.
研究领域:
材料科学
·
能源工程
·
航空工程
✓ 已验证
产品关联
DOI
高影响因子
Microstructures
·
2025
·Vol. 5
·期 4
·N
·
IF 9
Wei-Peng Shi,Rui Guo,Gai-Ling Tian,Yi Chen,Yong-Hua Wang,Dan-Feng Cui,Dan Liu,Chen-Yang Xue
Photothermoelectric (PTE) detectors hold immense potential for converting incident light signals into electrical signals, finding applications in sensing, astronomy, night vision, and communication. However, their widespread adoption is hindered by issues such as slow response times, low responsivity, and poor stability. In this study, a high-performance self-powered PTE detector based on the Ag2Se nanorods (NRs) and multi-walled carbon nanotubes (MWCNTs) is reported for the first time. The findings reveal that the electrical conductivity of the film increases with the addition of MWCNTs, albeit at the expense of the Seebeck coefficient. Notably, the film containing 0.5 wt% MWCNTs exhibited a superior power factor (303.22 μW·m-1·K-2) at 300 K. Owing to the high PTE performance, the photosensitive properties are characterized in an ultra-broadband range from the violet (405 nm) to infrared (2,500 nm) wavelengths, featuring rapid response time (1.4 s) and substantial output voltage (6.83 mV). Furthermore, the device demonstrated remarkable stability, with only a 3.4% decrease in output voltage after three months of air exposure and negligible changes in thirty cycles. Thus, the proposed device presents a novel strategy for developing PTE detectors characterized by broadband coverage, fast response times, and exceptional stability.
研究领域:
光学工程
·
纳米材料
·
电子器件
·
能源转换
✓ 已验证
产品关联
DOI
高影响因子
Science Advances
·
2020
·Vol. 6
·期 38
·
IF 13.117
Wei Li,Xin Tang,Liqiu Wang
Precision manipulation of various liquids is essential in many fields. Unlike solid objects, fluids are intrinsically divisible, enriching their fundamental operations with merging, dispensing, and splitting on top of moving. Fluids are sticky as well, calling for their lossless manipulation to prevent mass loss and contamination. We present photopyroelectric microfluidics that meet all the requirements. In response to the irradiation from even one single beam of light, our platform creates a unique wavy dielectrophoretic force field that is remarkably capable of performing desired loss-free (loss being 0.5% of existing one) manipulation of droplets of surface tension from 18.9 to 98.0 mN m−1 and volume from 1 nl to 1000 μl, functioning as a “magic” wetting-proof hand to navigate, fuse, pinch, and cleave fluids on demand, enabling cargo carriers with droplet wheels and upgrading the limit of maximum concentration of deliverable protein by 4000-fold.
研究领域:
生物工程
·
微纳米技术
·
光学工程
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Xin-zheng Jin,Xiao-dong Qi,Ying Wang,Jing-hui Yang,Hao Li,Zuo-wan Zhou,Yong Wang
Helical carbon nanotube (HCNT) is a vital member of carbon nanomaterials, but little effort was devoted to explore its unique characteristics and applications during the past few decades. Here, we report an organic thermoelectric composite with an excellent photothermoelectric (PTE) effect by conformally wrapping polypyrrole (PPy) on the intricate surface of HCNTs, which have been confirmed to have remarkable near-infrared (NIR) photothermal conversion capability and ultralow heat transportation characteristics. The results indicate that with the increasing HCNT content, PPy shell thickness reduces and exhibits denser as well as partial orientation, while the inter-ring angle slowly decreases and the bipolaron becomes dominant in carrier composition gradually. Consequently, the Seebeck coefficient increases monotonically, whereas the electrical conductivity remains nearly invariant. The final composite combines the benign thermoelectric properties, excellent photothermal response performance, and the lowest thermal conductivity of the carbon-based thermoelectric composite yet reported (0.064 W m–1 K–1). A single strip NIR light-stimulated adjustable delay switch was designed and fabricated, with the open-circuit voltage and short-circuit current under a 400 mW cm–2 NIR-stimulated approach to 720 μV and 62 nA with the discrepancy of consecutive periodic output signals less than 4.2%, exhibiting incredible stability and reliability and demonstrating the highest output voltage of a single strip among the reported organic PTE composite at room temperature. Our work fills in a gap of HCNT research, which hitherto existed in the PTE and thermoelectric field.
研究领域:
材料科学
·
能源科学
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMISTRY OF MATERIALS
·
2023
·
IF 8.6
Zhuo Chen,Yueyue He,Yue Zhang,Xian-Ming Zhang,Dongying Fu
Two-dimensional (2D) polar Dion–Jacobson (DJ) phase hybrid organic–inorganic perovskites (HOIPs) have received increasing interest due to their inherent spontaneous polarization. However, research on utilizing the photoexcited pyroelectric effects to achieve broadband photoresponses in polar DJ hybrid perovskites is still rare. Herein, a new polar DJ hybrid perovskite (1,3-BMACH)PbI4 (1,3-BMACH is 1,3-Bis(aminomethyl)cyclohexane) breaks its band gap limitation and shows broadband photoresponses from ultraviolet (266 nm), visible (405–637 nm) to near-infrared region (940 nm) by light-induced pyroelectricity. On the basis of spontaneous polarization, a single crystal photodetector based on (1,3-BMACH)PbI4 exhibits a fast rising/falling response time (τrise ∼ 12 μs, τfall ∼ 147 μs) and high detectivity of 1.26 × 108 Jones under zero bias at 520 nm. Meanwhile, it also shows a giant contrast of up to 358% for photopyroelectric current to photocurrent signals, which is significantly better than traditional inorganic pyroelectric BaTiO3 film (∼110%). Besides, (1,3-BMACH)PbI4 shows an evident reversible thermochromism with color change from orange–yellow to orange–red. The temperature change caused by light on and off leads to a change in spontaneous polarization, which in turn generates photopyroelectric current. The self-driven photodetection based on this mechanism is no longer constrained by the semiconductor properties of the materials, which also broadens the application field of DJ hybrid perovskites and provides beneficial assistance for the development of multifunctional high-performance HOIP pyroelectrics.
研究领域:
材料科学
·
光电物理
·
半导体器件
✓ 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）