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Wang Q, Luo J, Lv Z, Wu T, Zhang L, Zhong Y, Xu H, Mao Z. Scalable, Controlled Bimodal Pore-Structured Polymer Coating for Efficient Passive Daytime Radiative Cooling. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 39177240 DOI: 10.1021/acsami.4c03791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/24/2024]
Abstract
Outdoor thermal irritation poses a serious threat to public health, with the frequent occurrence of increasingly intense heat waves. With the global goal of carbon peaking and carbon neutrality, there is an urgent need for a strategy that is efficient and can provide localized outdoor cooling without an intensive energy input. This paper demonstrated a rapidly formable polyurethane-based coating with controlled bimodal spherical micropores. Nano-Al2O3 particles (300 nm) embedded in the polymer were used for targeted enhancement of reflectance at 0.38-0.5 wavelengths. The enhanced film reflected 93% solar irradiance and selectively transmitted 95% thermal radiation (8-13 μm), enabling rapid cooling and the creation of a comfortable thermal microclimate to avoid overheating of 6-11 °C during daytime conditions. The ultrawide material compatibility and excellent adaptive mechanical strength of polyurethane-based coatings are expected to benefit the sustainable development of society in a wide range of fields, from health to economics.
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Affiliation(s)
- Qianqian Wang
- Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, China
- Shanghai Belt and Road Joint Laboratory of Textile Intelligent Manufacturing, Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, China
| | - Jiawei Luo
- Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, China
- Shanghai Belt and Road Joint Laboratory of Textile Intelligent Manufacturing, Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, China
| | - Ze Lv
- Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, China
- Shanghai Belt and Road Joint Laboratory of Textile Intelligent Manufacturing, Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, China
| | - Tong Wu
- Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, China
- Shanghai Belt and Road Joint Laboratory of Textile Intelligent Manufacturing, Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, China
| | - Linping Zhang
- Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, China
- Shanghai Belt and Road Joint Laboratory of Textile Intelligent Manufacturing, Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, China
| | - Yi Zhong
- Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, China
- Shanghai Belt and Road Joint Laboratory of Textile Intelligent Manufacturing, Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, China
| | - Hong Xu
- Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, China
- Shanghai Belt and Road Joint Laboratory of Textile Intelligent Manufacturing, Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, China
| | - Zhiping Mao
- Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, China
- Shanghai Belt and Road Joint Laboratory of Textile Intelligent Manufacturing, Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, China
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Liu J, Tong Z, Gao F, Wang J, Hu J, Song L, Hou Y, Lu J, Zhan X, Zhang Q. Pearl-Inspired Intelligent Marine Hetero Nanocomposite Coating Based on "Brick&Mortar" Strategy: Anticorrosion Durability and Switchable Antifouling. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2401982. [PMID: 38609077 DOI: 10.1002/adma.202401982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 03/30/2024] [Indexed: 04/14/2024]
Abstract
Corrosion activities and biofouling pose significant challenges for marine facilities, resulting in substantial economic losses. Inspired by the "brick&mortar" structure of pearls, a novel nanocomposite coating (Pun-HJTx) with long-lasting anticorrosion and intelligent antifouling modes is fabricated by integrating a compatible MoS2/MXene heterostructure as the "brick" into a polyurea-modified PDMS (Pun) acting as "mortar." Notably, the presence of multiple hydrogen bonds within the coating effectively reduces the pinholes resulted from solution volatilizing. In the dark, where fouling adhesion and microbial corrosion activities are weakened, the MoS2/MXene plays a role in contact bactericidal action. Conversely, during daylight when fouling adhesion and microbial corrosion activities intensify, the coating releases reactive oxygen species (such as hydroxyl radicals and superoxide ions) to counteract fouling adhesion. Additionally, the coating exhibits multisource self-healing performance under heated or exposed to light (maximum self-healing rate can reach 99.46%) and proves efficient self-cleaning performance and adhesion strength (>2.0 Mpa), making it highly suitable for various practical marine applications. Furthermore, the outstanding performance of the Pun-HJT1 is maintained for ≈180 days in real-world marine conditions, which proving its practicality and feasibility in real shallow sea environments.
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Affiliation(s)
- Jiahuan Liu
- College of Chemical and Biological Engineering, Zhejiang University, Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, Hangzhou, 310027, China
- Institute of Zhejiang University-Quzhou, Zhejiang Provincial Innovation Center of Advanced Chemicals Technology, Quzhou, 324000, China
| | - Zheming Tong
- College of Chemical and Biological Engineering, Zhejiang University, Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, Hangzhou, 310027, China
| | - Feng Gao
- College of Chemical and Biological Engineering, Zhejiang University, Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, Hangzhou, 310027, China
- Institute of Zhejiang University-Quzhou, Zhejiang Provincial Innovation Center of Advanced Chemicals Technology, Quzhou, 324000, China
| | - Jun Wang
- College of Chemical and Biological Engineering, Zhejiang University, Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, Hangzhou, 310027, China
| | - Jing Hu
- Shanghai Institute of Technology, Shanghai, 201418, China
| | - Lina Song
- College of Chemical and Biological Engineering, Zhejiang University, Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, Hangzhou, 310027, China
| | - Yang Hou
- College of Chemical and Biological Engineering, Zhejiang University, Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, Hangzhou, 310027, China
| | - Jianguo Lu
- School of Materials Science and Engineering Zhejiang University, Hangzhou, 310027, China
| | - Xiaoli Zhan
- College of Chemical and Biological Engineering, Zhejiang University, Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, Hangzhou, 310027, China
- Institute of Zhejiang University-Quzhou, Zhejiang Provincial Innovation Center of Advanced Chemicals Technology, Quzhou, 324000, China
| | - Qinghua Zhang
- College of Chemical and Biological Engineering, Zhejiang University, Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, Hangzhou, 310027, China
- Institute of Zhejiang University-Quzhou, Zhejiang Provincial Innovation Center of Advanced Chemicals Technology, Quzhou, 324000, China
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Wu B, Qi Q, Liu L, Liu Y, Wang J. Wearable Aerogels for Personal Thermal Management and Smart Devices. ACS NANO 2024; 18:9798-9822. [PMID: 38551449 DOI: 10.1021/acsnano.4c00967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/10/2024]
Abstract
Extreme climates have become frequent nowadays, causing increased heat stress in human daily life. Personal thermal management (PTM), a technology that controls the human body's microenvironment, has become a promising strategy to address heat stress. While effective in ordinary environments, traditional high-performance fibers, such as ultrafine, porous, highly thermally conductive, and phase change materials, fall short when dealing with harsh conditions or large temperature fluctuations. Aerogels, a third-generation superinsulation material, have garnered extensive attention among researchers for their thermal management applications in building energy conservation, transportation, and aerospace, attributed to their extremely low densities and thermal conductivity. While aerogels have historically faced challenges related to weak mechanical strength and limited secondary processing capacity, recent advancements have witnessed notable progress in the development of wearable aerogels for PTM. This progress underscores their potential applications within extremely harsh environments, serving as self-powered smart devices and sensors. This Review offers a timely overview of wearable aerogels and their PTM applications with a particular focus on their wearability and suitability. Finally, the discussion classifies five types of PTM applications based on aerogel function: thermal insulation, heating, cooling, adaptive regulation (involving thermal insulation, heating, and cooling), and utilization of aerogels as wearable smart devices.
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Affiliation(s)
- Bing Wu
- Emergency Research Institute, Chinese Institute of Coal Science, Beijing 100013, P. R. China
| | - Qingjie Qi
- Emergency Research Institute, Chinese Institute of Coal Science, Beijing 100013, P. R. China
| | - Ling Liu
- Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, P. R. China
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Yingjie Liu
- Emergency Research Institute, Chinese Institute of Coal Science, Beijing 100013, P. R. China
| | - Jin Wang
- Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, P. R. China
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei, 230026, P. R. China
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Song J, Shen Q, Shao H, Deng X. Anti-Environmental Aging Passive Daytime Radiative Cooling. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2305664. [PMID: 38148594 PMCID: PMC10933639 DOI: 10.1002/advs.202305664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 10/30/2023] [Indexed: 12/28/2023]
Abstract
Passive daytime radiative cooling technology presents a sustainable solution for combating global warming and accompanying extreme weather, with great potential for diverse applications. The key characteristics of this cooling technology are the ability to reflect most sunlight and radiate heat through the atmospheric transparency window. However, the required high solar reflectance is easily affected by environmental aging, rendering the cooling ineffective. In recent years, significant advancements have been made in understanding the failure mechanisms, design strategies, and manufacturing technologies of daytime radiative cooling. Herein, a critical review on anti-environmental aging passive daytime radiative cooling with the goal of advancing their commercial applications is presented. It is first introduced the optical mechanisms and optimization principles of radiative cooling, which serve as a basis for further endowing environmental durability. Then the environmental aging conditions of passive daytime radiative cooling, mainly focusing on UV exposure, thermal aging, surface contamination and chemical corrosion are discussed. Furthermore, the developments of anti-environmental aging passive daytime radiative cooling materials, including design strategies, fabrication techniques, structures, and performances, are reviewed and classified for the first time. Last but not the least, the remaining open challenges and the insights are presented for the further promotion of the commercialization progress.
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Affiliation(s)
- Jianing Song
- Institute of Fundamental and Frontier SciencesUniversity of Electronic Science and Technology of ChinaChengdu610054China
| | - Qingchen Shen
- Bio‐inspired Photonics GroupYusuf Hamied Department of ChemistryUniversity of CambridgeLensfield RoadCambridgeCB2 1EWUK
| | - Huijuan Shao
- Institute of Fundamental and Frontier SciencesUniversity of Electronic Science and Technology of ChinaChengdu610054China
| | - Xu Deng
- Institute of Fundamental and Frontier SciencesUniversity of Electronic Science and Technology of ChinaChengdu610054China
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Pal SK, Jeong S, Otoufat T, Bae H, Kim G. Adaptive cooling strategy via human hair: High optothermal conversion efficiency of solar radiation into thermal dissipation. Proc Natl Acad Sci U S A 2024; 121:e2312297121. [PMID: 38236734 PMCID: PMC10823228 DOI: 10.1073/pnas.2312297121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 12/12/2023] [Indexed: 01/23/2024] Open
Abstract
Natural species have developed complex nanostructures in a hierarchical pattern to control the absorption, reflection, or transmission of desired solar and infrared wavelengths. This bio-inspired structure is a promising method to manipulating solar energy and thermal management. In particular, human hair is used in this article to highlight the optothermal properties of bio-inspired structures. This study investigated how melanin, an effective solar absorber, and the structural morphology of aligned domains of keratin polymer chains, leading to a significant increase in solar path length, which effectively scatter and absorb solar radiation across the hair structure, as well as enhance thermal ramifications from solar absorption by fitting its radiative wavelength to atmospheric transmittance for high-yield radiative cooling with realistic human body thermal emission.
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Affiliation(s)
- Sudip Kumar Pal
- Biomedical Manufacturing Technology Center, Korea Institute of Industrial Technology, Yeongcheon38822, Republic of Korea
| | - Soohyun Jeong
- Biomedical Manufacturing Technology Center, Korea Institute of Industrial Technology, Yeongcheon38822, Republic of Korea
| | - Tohid Otoufat
- Biomedical Manufacturing Technology Center, Korea Institute of Industrial Technology, Yeongcheon38822, Republic of Korea
| | - Hoyeon Bae
- Biomedical Manufacturing Technology Center, Korea Institute of Industrial Technology, Yeongcheon38822, Republic of Korea
| | - Gunwoo Kim
- Biomedical Manufacturing Technology Center, Korea Institute of Industrial Technology, Yeongcheon38822, Republic of Korea
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Zhang X, Sun Q, Liang X, Gu P, Hu Z, Yang X, Liu M, Sun Z, Huang J, Wu G, Zu G. Stretchable and negative-Poisson-ratio porous metamaterials. Nat Commun 2024; 15:392. [PMID: 38195718 PMCID: PMC10776607 DOI: 10.1038/s41467-024-44707-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 12/28/2023] [Indexed: 01/11/2024] Open
Abstract
Highly stretchable porous materials are promising for flexible electronics but their fabrication is a great challenge. Herein, several kinds of highly stretchable conductive porous elastomers with low or negative Poisson's ratios are achieved by uniaxial, biaxial, and triaxial hot-pressing strategies. The reduced graphene oxide/polymer nanocomposite elastomers with folded porous structures obtained by uniaxial hot pressing exhibit high stretchability up to 1200% strain. Furthermore, the meta-elastomers with reentrant porous structures combining high biaxial (or triaxial) stretchability and negative Poisson's ratios are achieved by biaxial (or triaxial) hot pressing. The resulting elastomer-based wearable strain sensors exhibit an ultrawide response range (0-1200%). The materials can be applied for smart thermal management and electromagnetic interference shielding, which are achieved by regulating the porous microstructures via stretching. This work provides a versatile strategy to highly stretchable and negative-Poisson-ratio porous materials with promising features for various applications such as flexible electronics, thermal management, electromagnetic shielding, and energy storage.
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Affiliation(s)
- Xiaoyu Zhang
- Interdisciplinary Materials Research Center, Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, Shanghai, 201804, PR China
| | - Qi Sun
- Interdisciplinary Materials Research Center, Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, Shanghai, 201804, PR China
| | - Xing Liang
- Interdisciplinary Materials Research Center, Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, Shanghai, 201804, PR China
| | - Puzhong Gu
- Interdisciplinary Materials Research Center, Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, Shanghai, 201804, PR China
| | - Zhenyu Hu
- Interdisciplinary Materials Research Center, Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, Shanghai, 201804, PR China
| | - Xiao Yang
- Interdisciplinary Materials Research Center, Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, Shanghai, 201804, PR China
| | - Muxiang Liu
- Interdisciplinary Materials Research Center, Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, Shanghai, 201804, PR China
| | - Zejun Sun
- Interdisciplinary Materials Research Center, Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, Shanghai, 201804, PR China
| | - Jia Huang
- Interdisciplinary Materials Research Center, Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, Shanghai, 201804, PR China
| | - Guangming Wu
- Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology, School of Physics Science and Engineering, Tongji University, Shanghai, 200092, PR China
| | - Guoqing Zu
- Interdisciplinary Materials Research Center, Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, Shanghai, 201804, PR China.
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Gu B, Xu Q, Wang H, Pan H, Zhao D. A Hierarchically Nanofibrous Self-Cleaning Textile for Efficient Personal Thermal Management in Severe Hot and Cold Environments. ACS NANO 2023; 17:18308-18317. [PMID: 37703206 DOI: 10.1021/acsnano.3c05460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/15/2023]
Abstract
Climate change has recently caused more and more severe temperatures, inducing a growing demand for personal thermal management at outdoors. However, designing textiles that can achieve personal thermoregulation without energy consumption in severely hot and cold environments remains a huge challenge. Herein, a hierarchically nanofibrous (HNF) textile with improved thermal insulation and radiative thermal management functions is fabricated for efficient personal thermal management in severe temperatures. The textile consists of a radiative cooling layer, an intermediate thermal insulation layer, and a radiative heating layer, wherein the porous lignocellulose aerogel membrane (LCAM) as intermediate layer has low thermal conductivity (0.0366 W·m-1·K-1), ensuring less heat loss in cold weather and blocking external heat in hot weather. The introduction of polydimethylsiloxane (PDMS) increases the thermal emissivity (90.4%) of the radiative cooling layer in the atmospheric window and also endows it with a perfect self-cleaning performance. Solar absorptivity (80.1%) of the radiative heating layer is dramatically increased by adding only 0.05 wt% of carbon nanotubes (CNTs) into polyacrylonitrile. An outdoor test demonstrates that the HNF textile can achieve a temperature drop of 7.2 °C compared with white cotton in a hot environment and can be as high as 12.2 °C warmer than black cotton in a cold environment. In addition, the HNF textile possesses excellent moisture permeability, breathability, and directional perspiration performances, making it promising for personal thermal management in severely hot and cold environments.
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Affiliation(s)
- Bin Gu
- School of Energy and Environment, Southeast University, Nanjing, Jiangsu 210096, China
| | - Qihao Xu
- School of Energy and Environment, Southeast University, Nanjing, Jiangsu 210096, China
| | - Hongkui Wang
- School of Energy and Environment, Southeast University, Nanjing, Jiangsu 210096, China
| | - Haodan Pan
- School of Energy and Environment, Southeast University, Nanjing, Jiangsu 210096, China
| | - Dongliang Zhao
- School of Energy and Environment, Southeast University, Nanjing, Jiangsu 210096, China
- Institute of Science and Technology for Carbon Neutrality, Southeast University, Nanjing, Jiangsu 210096, China
- Engineering Research Center of Building Equipment, Energy, and Environment, Ministry of Education, Nanjing, Jiangsu 210096, China
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