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SSRN 2024年

作者： Xu, Mei Chen, Zhicheng Hu, Ziyao Zhou, Cheng Fu, Xinming Song, Yiheng Wen, Xianjie Wang, Jinfeng Yin, Xianze College of Materials Science and Engineering National Local Joint Laboratory for Advanced Textile Processing and Clean Production Wuhan Textile University Wuhan430200 China Department of Anesthesiology The Second People’s Hospital of Foshan City Guangdong Province Foshan528000 China State Key Laboratory of New Textile Materials & Advanced Processing Technology Wuhan Textile University 430200 China

Wearable textile-triboelectric nanogenerators (t-TENGs) faced impediments in terms of the inadequate heat dissipation and moisture permeability performance. Specifically, actively heat-dissipating TENG devices exhibited intricacies, while passively heat-dissipating t-TENGs were considered unsatisfactory in sustaining optimal body temperature ranges for comfort. Herein, solvent-free titanium dioxide nanofluids (TiO2 nfs) were prepared to in-situ enhance the radiation cooling performance of electrospun TiO2 nfs@cellulose acetate (TiO2 nfs@CA) t-TENGs by grafting flexible chains on the TiO2 surface. TiO2 in the core layer of TiO2 nfs enhanced the infrared emission, hydrophilicity, and dielectric properties of TiO2 nfs@CA t-TENGs. Moreover, TiO2 nfs demonstrated a phase transition by absorbing energy within the physiological temperature ranges of the human body. TiO2 nfs enhanced the infrared emission, hydrophilicity, and dielectric properties of TiO2 nfs@CA t-TENGs by grafting flexible long chains ion on the TiO2 surface. The large-scale fabricated TiO2 nfs@CA membranes showcased remarkable radiation cooling performance (dropped 4 °C ~ 8 °C under 45 °C environments) in authentic and humid environments (like indoors, house and car). And TiO2 nfs@CA endowed a substantial enthalpy change within body temperature ranges, manifesting an exceptionally comfortable skin temperature (34 °C ~ 38 °C) even under scorching sunlight. Besides, TiO2 nfs@CA t-TENGs accurately monitored and pridicted foot movements in humid and enclosed environments by support vector machine (SVM). This made it promising as self-powered wearable devices. TiO2 nfs@CA t-TENGs provided a novel strategy for large scale fabricating of t-TENGs with comfort. © 2024, The Authors. All rights reserved.

关键词： textiles

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Body-Comfort Cellulose Acetate-Based textiles-Triboelectric Nanogenerators with Radiation Cooling and Moisture Permeability

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SSRN 2024年

关键词： textiles

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Study on Structural Stability of Black Phosphorus/Bismuth Oxysulfide/Tungsten Trioxide Heterojunction Based on XRD Measurement 5

Study on Structural Stability of Black Phosphorus/Bismuth Ox...

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2022 5th International Conference on Power Electronics and Control engineering, ICPECE 2022

作者： He, Xinyi Xiong, Yi Zhao, Meng Zeng, Wei Industry-Education-Research Institute of Advanced Materials and Technology for Integrated Circuits National Engineering Research Center for Agro-Ecological Big Data Analysis and Application School of Electronics and Information Engineering Anhui University Anhui Hefei230601 China School of Mathematical and Physical Sciences Department of Microelectronics National Local Joint Engineering Laboratory for Advanced Textile Processing and Clean Production Wuhan Textile University Hubei Wuhan430073 China

X-ray diffraction is employed to characterize the black phosphorus/bismuth oxysulfide/tungsten trioxide heterojunction composites to explore the alterations in crystallite size and micro-strain. The sample is immersed in sodium sulfite and tested each week. The Scherrer formula and Williamson-Hall plots are used to explore the effect of black phosphorus on improving the stability of the bismuth oxysulfide/tungsten trioxide heterojunction. The results show that the structure of black phosphorus/bismuth oxysulfide/tungsten trioxide heterojunction has changed as follows. The value of crystallite size of tungsten trioxide decreases from 13.82 nm to 9.23 nm, then to 7.45 nm per week, while the value of compressive micro-strain of WO3 increases from -2.02×10-3 to -7.58×10-3, then to -8.93×10-3. It illustrates that the lattice constant of WO3 is compressed due to the lattice mismatch. © Published under licence by IOP Publishing Ltd.

关键词： Tungsten compounds

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Wool Powder Assisted Colorimetric Sensing Yarn with High Sensitivity for Nh3 Monitoring

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SSRN 2024年

作者： Zhu, Xixi Li, Yuying Tang, Wenyang Cui, Yongming Zhu, Kunkun Wang, Jinfeng Zeng, Beini Wang, Xungai Wuhan Textile University National Local Joint Laboratory for Advanced Textile Processing and Clean Production Wuhan430200 China The Hong Kong Polytechnic University School of Fashion and Textiles Research Center of Textiles for Future Fashion Hong Kong999077 Hong Kong State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan430200 China Wuhan Textile University China

Colorimetric sensors have applications in gas monitoring due to their simple and quick detection through visible color changes. However, it remains challenging to prepare colorimetric sensors with high sensitivity. Herein, this work fabricated a biomass-based colorimetric sensing yarn with high sensitivity using anthocyanins as the colorimetric dye and wool powder as an effective ammonia (NH3) adsorbent. The sensitivity of the prepared yarns was evaluated for detection limit and response time. Surprisingly, the addition of 3% wool powder greatly improved the sensitivity of the prepared yarns, with a reduction of both detection limit and responsive time from 100 ppm to 20 ppm, and 2 min to 20 s, respectively when exposed in 150 ppm NH3. The prepared yarns also showed good selectivity and reusability. An example of the practical use of colorimetric yarns was presented. This work provides a facile strategy for fabricating wearable devices for toxic gas monitoring with visual output. © 2024, The Authors. All rights reserved.

关键词： Yarn

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Fiber Colorimetric Sensors with Ambient Humidity Tolerance for Nh3 Sensing

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SSRN 2023年

作者： Wang, Sihuan Shi, Congzhong Zeng, Beini Zhang, Jinming Wen, Zhongyuan Shi, Fangling Cui, Yongming Wang, Jinfeng Wuhan Textile University National Local Joint Laboratory for Advanced Textile Processing and Clean Production Wuhan430200 China CAS Key Laboratory of Engineering Plastics and CAS Research Education Center for Excellence in Molecular Sciences Chinese Academy of Sciences Beijing100190 China

Colorimetric sensors with visual color changes toward toxic gas have been investigated to prevent potential hazardous accidents caused by leakage. The sensitivity of most colorimetric sensors in practical applications is interfered with ambient humidity. This work introduced a hygroscopic substance lithium chloride (LiCl) to be used as humidity compensation to alleviate humidity interference to colorimetric sensor. Cellulose-based colorimetric fibers were prepared from waste cotton using chlorophenol red as an indicator dye in a LiCl/DMAc solvation system. The obtained colorimetric fibers responded quickly to NH3 within 30 s at 50% RH. At the same time, this colorimetric fiber has excellent selectivity and excellent reusability, which could maintain 82% of the original colorimetric response over several cycles. Because of the flexibility, this NH3 sensing colorimetric fiber can be sewn into patterned textiles for manufacturing wearable toxic gas sensors with visual output. © 2023, The Authors. All rights reserved.

关键词： Color

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Fiber Colorimetric Sensors with Ambient Humidity Tolerance for Nh3 Sensing

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SSRN 2023年

作者： Wang, Sihuan Shi, Congzhong Zeng, Beini Zhang, Jinming Wen, Zhongyuan Shi, Fangling Cui, Yongming Wang, Jinfeng Wuhan Textile University National Local Joint Laboratory for Advanced Textile Processing and Clean Production Wuhan430200 China CAS Key Laboratory of Engineering Plastics CAS Research/Education Center for Excellence in Molecular Sciences Chinese Academy of Sciences Beijing100190 China

关键词： Color

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Porous Cellulose Acetate/Tio2 Nanofluids Fibrous Membrane for High Sweat Evaporation Ability, Passive Daytime Radiative Cooling and Energy Harvesting

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SSRN 2023年

作者： Xu, Mei Fu, Xinming Chen, Zhicheng Zheng, Long Song, Yiheng Wang, Jinfeng Wen, Xianjie Yin, Xianze College of Materials Science and Engineering National Local Joint Laboratory for Advanced Textile Processing and Clean Production Wuhan Textile University Wuhan430200 China Department of Anesthesiology The Second People’s Hospital of Foshan City Guangdong Province Foshan528000 China State Key Laboratory of New Textile Materials & Advanced Processing Technology Wuhan Textile University 430200 China Wuhan Textile University China

Radiant refrigeration textiles with passive personal thermal management have become a convenient, economical and energy-saving method for outdoor human thermal comfort. Existing passive radiative cooling textiles are primarily manufactured from synthetic polymers and often lack moisture management functionality. In this paper, titanium dioxide was prepared into solvent-free fluid and then wrapped into cellulose acetate membrane by electrospinning. This fabric integrates passive radiative cooling and sweat evaporation functions using an extensible electrospinning technique. Due to effective scattering, CA's molecular vibration and the solvent-free nanofluids’ phonon-polariton resonance, this CA/TiO2 nanofluids (nfs) membrane shows a high solar reflectance of 0.92 and a high emittance of 0.85, which demonstrates significant radiative cooling performance under clear sky conditions. It can be utilized not only for cooling buildings and vehicles but also provides additional capabilities for absorbing sweat and facilitating evaporation due to its hydrophilicity. The nanofiber textile reduces the temperature of the covered area by 8 °C when exposed to direct sunlight outside. In addition, this membrane also exhibits excellent triboelectric properties (power density 77 mW/m2), making it promising for use in the field of energy harvesting. Combined with many advantages such as biodegradability, high radiation refrigeration, efficient perspiration and triboelectric properties, these CA/TiO2 nfs composite membranes will be effective textiles for passive personal thermal management. © 2023, The Authors. All rights reserved.

关键词： Energy harvesting

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In situ synthesis of oriented Zn-Mn-Co-telluride on precursor free CuO: An experimental and theoretical study of hybrid electrode paradigm for advanced supercapacitors

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Nano Materials Science 2024年

作者： Ahmad, Muhammad Nawaz, Tehseen Hussain, Iftikhar Chen, Xi Khan, Shahid Ali Eddahani, Yassine Abraham, B. Moses Ali, Shafqat Wang, Ci Zhang, Kaili Department of Mechanical Engineering City University of Hong Kong 83 Tat Chee Avenue Kowloon Hong Kong A.J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering Drexel University 3141 Chestnut Street PhiladelphiaPA19104 United States Department of Chemistry The University of Hong Kong Hong Kong Department of Chemical Engineering Indian Institute of Technology Kanpur Kanpur208016 India State Key Laboratory of New Textile Materials and Advanced Processing Technologies National Local Joint Laboratory for Advanced Textile Processing and Clean Production Wuhan Textile University Wuhan430200 China Key Lab of In-fiber Integrated Optics Ministry Education of China Harbin Engineering University Harbin150001 China

The evolution of energy storage technology has seen remarkable progress, with a shift from pure metals to sophisticated, tailor-made active materials. The synthesis of nanostructures with exceptional properties is crucial in the advancement of electrode materials. In this regard, our study highlights the fabrication of a novel, oriented heterostructure comprised of Zn-Mn-Co-telluride grown on a pre-oxidized copper mesh using a hydrothermal method followed by a solvothermal process. This innovative approach leads to the formation of the Zn-Mn-Co-telluride@CuO@Cu heterostructure, which demonstrates the unique oriented morphology. It outperforms both Zn-Mn-Co-telluride@Cu and CuO@Cu by exhibiting lower electrical resistivity, increased redox activity, higher specific capacity, and improved ion diffusion characteristics. The conductivity enhancements of the heterostructure are corroborated by density functional theory (DFT) calculations. When utilized in a hybrid supercapacitor (HSC) alongside activated carbon (AC) electrodes, the Zn-Mn-Co-telluride@CuO@Cu heterostructure-based HSC achieves an energy density of 75.7 Wh kg−1. Such findings underscore the potential of these novel electrode materials to significantly impact the design of next-generation supercapacitor devices. © 2024 Chongqing University

关键词： Electrodes

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In-Situ Growth of Robust and Superhydrophilic Nano-Skin on Electrospun Janus Nanoﬁbrous Membrane Toward Ultra-High Separation Efficiency, Long Cycle Stability, and Antibacterial Activity of Oil/Water Emulsions Separation

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SSRN 2023年

作者： Cheng, Bingbing Yan, Song Li, Yushan Zheng, Long Wen, Xianjie Tan, Yeqiang Yin, Xianze College of Materials Science and Engineering State Key Laboratory of New Textile Materials & Advanced Processing Technology Hubei Key Laboratory of Biomass Fibers and Eco-Dyeing & Finishing Engineering Research Center of Ministry of Education for Clean Production of Textile Printing and Dyeing National Local Joint Laboratory for Advanced Textile Processing and Clean Production Wuhan Textile University Wuhan430200 China Department of Anesthesiology The Second People’s Hospital of Foshan City Guangdong Province Foshan528000 China State Key Laboratory of Bio-Fibers and Eco-Textiles Collaborative Innovation Center of Marine Biobased Fiber and Ecological Textile Technology Institute of Marine Biobased Materials College of Materials Science and Engineering Qingdao University Qingdao266071 China

It is difficult for composite fibrous membranes to achieve up to 99.5% separation eﬃciency for oil/water emulsions under cycling separation. Herein, a simple method is developed to in-situ grow surperhydrophilic nanocoating on a single electrospun polyvinylidene ﬂuoride (PVDF) fiber surface for fabricating asymmetric wettable Janus PVDF fibrous membranes. Particularly, polysaccharide fluids with zwitterionic polymer chains are generated from the nanoﬁber subsurface in an inside-out way during the electrospinning process, forming the robust superhydrophilic nanocoating (99.5 %), a high flux (up to 4325 L·m-2·h-1·bar-1), antibacterial activity (>99%) and antifoul properties. Moreover, the obtained Janus membranes own surprising flux cycling stability and retained 99.5% separation efficiency after 12 cycles without any treatment, indicating that the multi-arm polysaccharide fluids acted as the water channel in such membrane and accelerated the ﬂow of water molecules. The Janus PVDF composite membranes have potential applications for oily wastewater treatment and water purification in the future. © 2023, The Authors. All rights reserved.

关键词： Wastewater treatment

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Fiber Bridging Induced Toughening of Perovskite for Resistance to Cracks Propagation

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SSRN 2022年

作者： Jin, Bowen Ren, Lizhi Gou, Yanzhuo Ma, Ruihao Liang, Zihui Li, Zongbao Dong, Binhai Zhao, Li Wang, Shimin Wu, Congcong Key Laboratory for the Green Preparation and Application of Functional Materials Hubei Key Laboratory of Polymer Materials School of Materials Science and Engineering Hubei University Wuhan430062 China National Local Joint Laboratory for Advanced Textile Processing and Clean Production Wuhan Textile University Wuhan430073 China School of Materials Science and Engineering Wuhan Textile University Wuhan430200 China

Perovskite solar cells (PSCs) emerging as a promising photovoltaic technology are regarded as the competitor against the dominant silicon-based solar cells. Despite great progress achieved in power conversion efficiency (PCE) during the past decade, they are not currently viable in commercialization not only because of the intrinsic chemical instability but also the unrevealed reliability. The reliability of solar panels is a critical assessment to ensure constant operation in the lifespan of the warranty, which is associated with strength against external forces, such as the physical strike of hailstones or wind load. The mechanical properties test is an essential process for solar panels to enter the market;however, it is rarely considered for perovskite photovoltaics. In this work, we emphasized the mechanical properties improvement by incorporating a natural one-dimensional material, ethyl cellulose (EC), within the perovskite films, working as the fiber bridging component to increase the toughness of the intrinsic brittle perovskite crystals. As a result, the EC incorporated perovskite layer exhibited much-improved mechanical properties with Young's modulus 3 times higher than that of pristine film, as well as showed robust stability under various harsh conditions. © 2022, The Authors. All rights reserved.

关键词： Solar power generation

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