Journals >Advanced Fiber Materials
Contents
2024
Volume: 6 Issue 1
20 Article(s)
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Research Articles
Low-Cost, Scalable Fabrication of All-Fabric Piezoresistive Sensors via Binder-Free, In-Situ Welding of Carbon Nanotubes on Bicomponent Nonwovens
Guangliang Tian, Yihan Shi, Jixia Deng, Wenhua Yu, Leihang Yang, Yi Lu, Yi Zhao, Xiangyu Jin, Qinfei Ke, and Chen Huang
Wearable piezoresistive sensors have shown enormous application prospects in flexible electronics and human–machine interfaces. However, current piezoresistive sensors suffer from common deficiencies including high fabrication cost, poor comfort and low attachment fastness of conductive substances on substrates, therebWearable piezoresistive sensors have shown enormous application prospects in flexible electronics and human–machine interfaces. However, current piezoresistive sensors suffer from common deficiencies including high fabrication cost, poor comfort and low attachment fastness of conductive substances on substrates, thereby impeding their large-scale production and practical use. Herein, a three-dimensional all-fabric piezoresistive sensor is reported based on coating multi-wall carbon nanotubes (MWCNTs) on bicomponent nonwovens composed of core-sheath fibers. The combination of core-sheath fibers with a heat-induced welding strategy greatly improves the adhesion fastness and stability of MWCNT network. The multi-layered all-fabric structure provides as-prepared sensors with high sensitivity (9.43% kPa-1 in 0–10 kPa and 0.076% kPa-1 in 20–120 kPa), wide pressure-sensing range (0–120 kPa), fast response/relaxation time (100 and 60 ms), good reproducibility and air permeability. Application of the sensor is demonstrated through the detection of human activities (such as pulse, cough and joint movements) and the wireless monitoring of forefinger bending. Moreover, our sensor is fabricated out of cost-effective materials, using scalable approach without using glue or binders. The method established in this work may provide an efficient strategy for the design and production of high-performance all-fabric piezoresistive sensors..
Advanced Fiber Materials
- Publication Date: Nov. 03, 2023
- Vol. 6, Issue 1, 00331 (2024)
Advanced Aramid Fibrous Materials: Fundamentals, Advances, and Beyond
Annan He, Tonghe Xing, Zihui Liang, Yuxin Luo, Yu Zhang, Mengqi Wang, Zhiyu Huang, Jie Bai, Liuyan Wu, Zhicheng Shi, Hongmei Zuo, Wenshuo Zhang, Fengxiang Chen, and Weilin Xu
Aramid fibers (AFs) are widely applied in many cutting-edge fields, due to their excellent comprehensive performance. Ongoing research efforts are therefore underway to expand the applicability by designing more environmentally friendly and low-cost synthesis methods, incorporating new chemical components in the skeletAramid fibers (AFs) are widely applied in many cutting-edge fields, due to their excellent comprehensive performance. Ongoing research efforts are therefore underway to expand the applicability by designing more environmentally friendly and low-cost synthesis methods, incorporating new chemical components in the skeletons or internal structures of polyamide to enhance their processability and functionality. Despite being at the forefront of scientific research, there are fewer reviews that comprehensively summarize the latest progress of AFs. This review focuses on the fundamental research of AFs since their inception and summarizes the advanced progress and applications of AFs. Firstly, the synthesis mechanism and methods of AFs and their structure–property relationship are comprehensively discussed. Subsequently, we review the recent progress in surface functionalization of AFs by using advanced micro-nanoscale modification strategies to enhance the interface properties and ultraviolet (UV)-resistance properties, and summarize the advantages and disadvantages of various modified methods. Then, applications of AF and aramid nanofiber (ANF) in various fields are discussed. Finally, the possible challenges and outlooks toward the future development of AFs are highlighted, which is expected to provide new insights for the next-generation advanced functional AF materials and facilitate the industrialization development level for high-performance AFs and their composites..
Advanced Fiber Materials
- Publication Date: Oct. 23, 2023
- Vol. 6, Issue 1, 00332 (2024)
Playing with Chlorine-Based Post-modification Strategies for Manufacturing Silica Nanofibrous Membranes Acting as Stable Hydrophobic Separation Barriers
Minglun Li, Eva Loccufier, Jozefien Geltmeyer, Dagmar R. D’hooge, Klaartje Buysser, and Karen Clerck
Highly stable hydrophobic silica-based membranes were successfully fabricated through chemical post-modification of directly electrospun silica nanofibrous membranes. Five different Si-alkoxy chlorides were tried as reagents at room temperature, allowing for an easy two-step production process. Trimethylchlorosilane (THighly stable hydrophobic silica-based membranes were successfully fabricated through chemical post-modification of directly electrospun silica nanofibrous membranes. Five different Si-alkoxy chlorides were tried as reagents at room temperature, allowing for an easy two-step production process. Trimethylchlorosilane (TMCS) was determined as to be the most suitable modifier, for this purpose. The modified membrane exhibits long-term hydrophobicity even under high humidity and water submersion, maintaining this property after exposure to elevated temperatures and acidic conditions, surpassing the unmodified membrane. The separation effectiveness for immiscible water/solvent solutions was proven, followed by an investigation into the relation between the surface tension of some miscible water/solvent solutions and the resulting wetting behavior of the TMCS-modified membrane, to utilize the membrane as a process intensification tool, specifically as a solvent gate..
Advanced Fiber Materials
- Publication Date: Nov. 03, 2023
- Vol. 6, Issue 1, 00335 (2024)
Binder-Free Electrospun Nickel Cerium Selenide Nanofiber Electrodes Based on Voltage-Stimulated Diameter Refinement for Solar-Charged Quasi-solid-State Wearable Supercapacitors
Edugulla Girija Shankar, Paranjape Mandar Vasant, and Jae Su Yu
Binder-free electrospining approach for fabricating bimetallic chalcogen electrodes is essential for cost- and time-cutting but challenging. Herein, we propose a novel direct spray technique in electrospinning method to fabricate binder-free electrospun nickel cerium selenide nanofiber (NCSNF) structured materials. TheBinder-free electrospining approach for fabricating bimetallic chalcogen electrodes is essential for cost- and time-cutting but challenging. Herein, we propose a novel direct spray technique in electrospinning method to fabricate binder-free electrospun nickel cerium selenide nanofiber (NCSNF) structured materials. The effect of the applied electrospinning voltage on the average fiber diameter is analyzed. Electrospinning voltage of 25 kV is applied for obtaining an average fiber diameter of < 100 nm (87 nm) with rough interconnected nanofibers. The optimized NCSNF electrode exhibits remarkable long-term cycling stability over 50,000 galvanostatic charge–discharge (GCD) cycles. Furthermore, radish-derived nanolayered carbon (RDNLC) is synthesized via pyrolysis and its electrochemical properties are evaluated. The optimized NCSNF and RDNLC electrodes are employed to fabricate a polyvinyl alcohol–potassium hydroxide gel electrolyte-based quasi-solid-state asymmetric supercapacitor (ASC). The quasi-solid-state ASC delivers a high energy density value of 22 Wh kg-1 with 85% capacitance retention and 95% Coulombic efficiency over 40,000 GCD cycles, and upon being extended to the 50,000 GCD cycles, the capacitance retention and Coulombic efficiency reached 71% and 95%, respectively. A solar-charged wristband-like device is designed as a wearable supercapacitor, and the integrated device is attached to the human hand for powering electronic gadgets in contorted states, thus demonstrating its potential for wearable applications..
Advanced Fiber Materials
- Publication Date: Oct. 25, 2023
- Vol. 6, Issue 1, 00336 (2024)
Spatially Confined MXene/PVDF Nanofiber Piezoelectric Electronics
Jieling Zhang, Tao Yang, Guo Tian, Boling Lan, Weili Deng, Lihua Tang, Yong Ao, Yue Sun, Wanghong Zeng, Xiarong Ren, Zhaoyu Li, Long Jin, and Weiqing Yang
Piezoelectric nanofibers have received extensive attention in the field of electronic devices, but they are still restricted for further development, due to their limited dipole arrangement. Herein, we propose spatially confined MXene/polyvinylidene fluoride (PVDF) nanofibers for piezoelectric application, with dual fuPiezoelectric nanofibers have received extensive attention in the field of electronic devices, but they are still restricted for further development, due to their limited dipole arrangement. Herein, we propose spatially confined MXene/polyvinylidene fluoride (PVDF) nanofibers for piezoelectric application, with dual functions of pressure sensing and energy harvesting. The spatial confinement of MXene/PVDF nanofibers can actively induce the optimally aligned –CH2–/–CF2– dipoles of PVDF and dramatically boost spontaneous polarization for piezoelectric enhancement. The voltage and current generated by fabricated MXene/PVDF (0.8 wt%) nanofiber piezoelectric electronic devices are respectively 3.97 times and 10.1 times higher than those generated by pure PVDF nanofibers. Based on these results, the developed bifunctional electronic devices are applied to monitor various human movements and to harvest energy. Notably, the results of this work allow for the development of nanofibers with excellent piezoelectric performance using a spatial confinement mechanism..
Advanced Fiber Materials
- Publication Date: Nov. 03, 2023
- Vol. 6, Issue 1, 00337 (2024)
Fabrication Techniques and Sensing Mechanisms of Textile-Based Strain Sensors: From Spatial 1D and 2D Perspectives
Shilin Liu, Wenting Zhang, Jingzong He, Yonggen Lu, Qilin Wu, and Malcolm Xing
The intelligent textile sensors based on fiber (1D) and fabric (2D) are the ideal candidates for wearable devices. Their flexible weaving and unique structure endow them with flexibility, lightweight, good air permeability, and feasible integration with garments. In view of the spring-up of novel textile-based strain sThe intelligent textile sensors based on fiber (1D) and fabric (2D) are the ideal candidates for wearable devices. Their flexible weaving and unique structure endow them with flexibility, lightweight, good air permeability, and feasible integration with garments. In view of the spring-up of novel textile-based strain sensors, the novel materials and fabrication approaches were elaborated from spatial perspectives, i.e., 1D fibers/yarn and 2D fabric. The intrinsic sensing mechanism is the primary factor affecting sensor sensitivity, and the variation trend of the sensing signal is closely related to it. Although existing studies have involved various sensing mechanisms, there is still lacking systematic classification and discussion. Hence, the sensing mechanisms of textile-based sensors were elaborated from spatial perspectives. Considering that strain sensors were mostly based on resistance variation, the sensing mechanisms of resistive textile-based strain sensors were mainly focused, mainly including fiber deformation, tunneling effect, crack propagation, fabric deformation, electrical contact and bridge connection. Meanwhile, the corresponding resistance prediction models, usually used as important data fitting methodology, were also comprehensively discussed, which can reproduce the resistance trend and provide guidance for the sensor performance. Finally, the multifunctionality of textile-based strain sensors was summarized, namely multi-mode signal detection, visual interaction, energy collection, thermal management and medical treatment were discussed. It was expected to provide research insights into the multifunctional integration of textile sensors..
Advanced Fiber Materials
- Publication Date: Oct. 25, 2023
- Vol. 6, Issue 1, 00338 (2024)
Highly Stretchable, Sensitive, and Multifunctional Thermoelectric Fabric for Synergistic-Sensing Systems of Human Signal Monitoring
Yifan Cui, Xinyang He, Wendi Liu, Suiyuan Zhu, Man Zhou, and Qiang Wang
Stretchable thermoelectric-based self-powered sensors have attracted widespread attention for wearable electronic devices. However, the development of thermoelectric materials with wearable comfort, green, and multimodal synergy remains challenging. In this paper, we prepared a poly(3,4-ethylenedioxythiophene)/multi-waStretchable thermoelectric-based self-powered sensors have attracted widespread attention for wearable electronic devices. However, the development of thermoelectric materials with wearable comfort, green, and multimodal synergy remains challenging. In this paper, we prepared a poly(3,4-ethylenedioxythiophene)/multi-walled carbon nanotube (PEDOT/MWCNT)-based thermoelectric fabric for self-powered strain–temperature dual-parameter sensing via spraying and in situ bio-polymerization. Compared with ferric chloride (FeCl3), used in chemical polymerization, the PEDOT thermoelectric fabric prepared by enzymatic polymerization is not doped with metal ions, making the thermoelectric performance of flexible wearable fabrics more stable. In addition, the energy-filtration effect of PEDOT and MWCNT efficiently enhanced the thermoelectric performance of the fabric. The fabric has over 320% elongation potential and excellent breathability while exhibiting excellent wearability. Moreover, the fabric-based sensor had a wide strain range (1–100%) and temperature detection limit (1 °C). In addition, fabric-based sensors were tested by sewing them directly onto clothing or attachment accessories, and showed a rapid response to changes in human joint bending and microenvironmental temperature differences. Moreover, the sensor could be integrated into an intelligent firefighting suit, to continuously and synergistically monitor health abnormalities in firefighter's body movement and temperature thresholds in the micro-environmental temperature of the suit. The developed self-powered dual-parameter wearable sensor shows fascinating potential for applications in human health monitoring, human–computer interaction devices, and intelligent robotics..
Advanced Fiber Materials
- Publication Date: Nov. 13, 2023
- Vol. 6, Issue 1, 00339 (2024)
A Review of Multifunctional Nanocomposite Fibers: Design, Preparation and Applications
Lijun Liu, Dan Chang, and Chao Gao
Nanocomposite fibers are fibrous materials with specific properties and functionalities, which are prepared by introducing nanomaterials or nanostructures in the fibers. Polymeric nanocomposite fibers exhibit multiple functionalities, showing great application potential in healthcare, aerospace, mechanical engineering,Nanocomposite fibers are fibrous materials with specific properties and functionalities, which are prepared by introducing nanomaterials or nanostructures in the fibers. Polymeric nanocomposite fibers exhibit multiple functionalities, showing great application potential in healthcare, aerospace, mechanical engineering, and energy storage. Here, six functionalities of polymer nanocomposite fibers are reviewed: mechanical reinforcement, resistance to electromagnetic interference and flame, thermal and electrical conduction, generation of far-infrared ray, negative ion and electricity, energy storage, and sensing. For each functionality, the fiber component selection and preparation methods are summarized. The commonly used polymers comprise natural and synthetic polymers, and typical nanomaterials include carbon-based, polymer-based, metal-based, and metal oxide-based ones. Various compounding strategies and spinning approaches, such as wet-spinning, melt-spinning, and electrospinning, are introduced. Moreover, the functional properties of fibers fabricated from different constituents and by different strategies are compared, providing a reference for performance optimization. Finally, the prospective directions of research and application are discussed, and possible approaches are suggested to facilitate the development of advanced nanocomposite fibers..
Advanced Fiber Materials
- Publication Date: Nov. 03, 2023
- Vol. 6, Issue 1, 00340 (2024)
An Ag/C Core–Shell Composite Functionalized Carbon Nanofiber Film as Freestanding Bifunctional Host for Advanced Lithium–Sulfur Batteries
Cong Zhou, Hongyu Wang, Quanqing Li, Feichao Wu, Shuyi Cao, Jingde Li, and Zhaoyang Tan
The uncontrolled dendrite growth and shuttle effect of polysulfides have hindered the practical application of lithium–sulfur (Li–S) batteries. Herein, a metal–organic framework-derived Ag/C core–shell composite integrated with a carbon nanofiber film (Ag/C@CNF) is developed to address these issues in Li-S batteries. TThe uncontrolled dendrite growth and shuttle effect of polysulfides have hindered the practical application of lithium–sulfur (Li–S) batteries. Herein, a metal–organic framework-derived Ag/C core–shell composite integrated with a carbon nanofiber film (Ag/C@CNF) is developed to address these issues in Li-S batteries. The Ag/C core–shell structure design endows the CNF skeleton with enhanced electrical conductivity, electrocatalysis performance toward polysulfides conversion, and lithium nucleation. When served as a freestanding bifunctional host in Li-S batteries, the Ag/C@CNF composite regulates the Li and sulfur electrochemical processes by guiding the uniform Li deposition with mitigated dendrite growth and at the same time accelerating the polysulfides conversion. The assembled Li–S full battery delivers a considerable capacity of 650 mAh g-1, an ultralong cyclability with an attenuation rate as low as 0.02% per cycle for 1000 cycles at 5 C, and excellent rate performances at increased sulfur loading up to 7.6 mg cm-2 under lean electrolyte condition..
Advanced Fiber Materials
- Publication Date: Nov. 13, 2023
- Vol. 6, Issue 1, 00341 (2024)
Iridium-Cluster-Implanted Ruthenium Phosphide Electrocatalyst for Hydrogen Evolution Reaction
Kyounghoon Jung, Dwi Sakti Aldianto Pratama, Andi Haryanto, Jin Il Jang, Hyung Min Kim, Jae-Chan Kim, Chan Woo Lee, and Dong-Wan Kim
Ruthenium phosphide is a promising catalyst for hydrogen evolution due to its cost-effectiveness compared to platinum. However it faces the challenge of having a high binding energy for hydrogen intermediates. In this study, we demonstrate that the incorporation of iridium in ruthenium phosphides lowers the binding eneRuthenium phosphide is a promising catalyst for hydrogen evolution due to its cost-effectiveness compared to platinum. However it faces the challenge of having a high binding energy for hydrogen intermediates. In this study, we demonstrate that the incorporation of iridium in ruthenium phosphides lowers the binding energy of hydrogen intermediates, thereby controlling the overpotential and Tafel slope of hydrogen evolution. When the Ir content was doped at 3 at.%, the catalyst achieved an overpotential of 33 mV and a Tafel slope of 33 mV dec-1 under acidic conditions, which are similar to those of the benchmark Pt/C catalyst. In situ Raman spectroscopy and density functional theory (DFT) calculations suggest that the enhanced catalytic activity originates from the near-neutral Gibbs free energy of hydrogen adsorption on the hollow site of the iridium cluster implanted onto ruthenium phosphide..
Advanced Fiber Materials
- Publication Date: Nov. 09, 2023
- Vol. 6, Issue 1, 00342 (2024)
Unlocking Intrinsic Conductive Dynamics of Ionogel Microneedle Arrays as Wearable Electronics for Intelligent Fire Safety
Yapeng Zheng, Haodong Liu, Jingwen Wang, Tianyang Cui, Jixin Zhu, and Zhou Gui
Ionogels have enabled flexible electronic devices for wide-ranging innovative applications in wearable electronics, soft robotics, and intelligent systems. Ionogels for flexible electronics need to essentially tolerate stress, temperature, humidity, and solvents that may cause their electrical conductivity, structural Ionogels have enabled flexible electronic devices for wide-ranging innovative applications in wearable electronics, soft robotics, and intelligent systems. Ionogels for flexible electronics need to essentially tolerate stress, temperature, humidity, and solvents that may cause their electrical conductivity, structural stability, processing compatibility and sensibility failure. Herein, we developed a novel in-situ photopolymerization protocol to fabricate intrinsically conductive, self-gated ionogels via ion-restriction dual effects. Highly sensitive and intelligent safety sensors with tunable stretchability, robust chemical stability, favorable printability, and complete recyclability, are programmed from defined microneedle arrays printed by the intrinsically conductive ionogel. Ultrahigh elasticity (~ 794% elongation), high compression tolerance (~ 90% deformation), improved mechanical strength (tensile and compressive strength of ~ 2.0 MPa and ~ 16.3 MPa, respectively) and remarkable transparency (> 91.1% transmittance), as well as high-temperature sensitivity (- 2.07% °C-1) and a wide working range (- 40 to 200 °C) can be achieved. In particular, the intrinsic sensing mechanisms of ion-restriction dual effects are unlocked based on DFT calculations and MD simulations, and operando temperature-dependent FTIR, and Raman technologies. Moreover, the real-time intelligent monitoring systems toward physical signals and precise temperature based on the microneedle array-structures sensors are also presented and demonstrate great potential applications for extreme environments, e.g., fire, deep-sea or aerospace..
Advanced Fiber Materials
- Publication Date: Nov. 13, 2023
- Vol. 6, Issue 1, 00344 (2024)
MXene/Cellulose Composite Cloth for Integrated Functions (if-Cloth) in Personal Heating and Steam Generation
Jian Chang, Bo Pang, Hao Zhang, Kanglei Pang, Miao Zhang, and Jiayin Yuan
Given the abundant solar light available on our planet, it is promising to develop an advanced fabric capable of simultaneously providing personal thermal management and facilitating clean water production in an energy-efficient manner. In this study, we present the fabrication of a photothermally active, biodegradableGiven the abundant solar light available on our planet, it is promising to develop an advanced fabric capable of simultaneously providing personal thermal management and facilitating clean water production in an energy-efficient manner. In this study, we present the fabrication of a photothermally active, biodegradable composite cloth composed of titanium carbide MXene and cellulose, achieved through an electrospinning method. This composite cloth exhibits favorable attributes, including chemical stability, mechanical performance, structural flexibility, and wettability. Notably, our 0.1-mm-thick composite cloth (RC/MXene IV) raises the temperature of simulated skin by 5.6 °C when compared to a commercially available cotton cloth, which is five times thicker under identical ambient conditions. Remarkably, the composite cloth (RC/MXene V) demonstrates heightened solar light capture efficiency (87.7%) when in a wet state instead of a dry state. Consequently, this cloth functions exceptionally well as a high-performance steam generator, boasting a superior water evaporation rate of 1.34 kg m-2 h-1 under one-sun irradiation (equivalent to 1000 W m-2). Moreover, it maintains its performance excellence in solar desalination processes. The multifunctionality of these cloths opens doors to a diverse array of outdoor applications, including solar-driven water evaporation and personal heating, thereby enriching the scope of integrated functionalities for textiles..
Advanced Fiber Materials
- Publication Date: Dec. 22, 2023
- Vol. 6, Issue 1, 00345 (2024)
Asymmetric Janus Fibers with Bistable Thermochromic and Efficient Solar–Thermal Properties for Personal Thermal Management
Chengcheng Wang, Jilei Shi, Liping Zhang, and Shaohai Fu
The compelling combination of thermochromism and multifunctional wearable heaters in smart textiles has received increasing attention given the significant synergistic effect of green solar heat supply and energy storage. However, due to color incompatibility and poor knittability, developing fabrics with bistable therThe compelling combination of thermochromism and multifunctional wearable heaters in smart textiles has received increasing attention given the significant synergistic effect of green solar heat supply and energy storage. However, due to color incompatibility and poor knittability, developing fabrics with bistable thermochromic properties to achieve efficient solar–thermal management remains a challenging endeavor. Here, by combining bistable thermochromic, photochromic, and efficient solar–thermal properties, we constructed an asymmetric Janus (Janus A/B) fiber (BTCSJF) that can simultaneously display two colors and help with energy reserve while harvesting solar power. Benefiting greatly from donor–acceptor electron transfer, dynamic hydrogen bonding, and supercooling properties, BTCSJF displays a quick switch in color, excellent bistability, and enhanced performance in storing phase-change energy. In addition, BTCSJF can be self-heated by 35.6 °C higher than conventional fibers because it can capture and store solar energy. This research outlines a method to fabricate braided fibers with two theoretically incompatible properties that have promising implications for self-powered integrated bistable color-changing and personal thermal management applications. An asymmetric Janus light absorbent/bistable thermochromic fiber (BTCSJF) was designed and fabricated, which can combine solar energy, phase-change energy storage, and bistable thermo- and photochromic properties. The unique Janus structure allows it to be used as a portable heater to stimulate color changes without obscuring color due to dark photothermal materials. Meanwhile, the heat energy converted by solar energy can be stored for personal thermal management..
Advanced Fiber Materials
- Publication Date: Jan. 09, 2024
- Vol. 6, Issue 1, 00346 (2024)
High-Performance Thick Cathode Based on Polyhydroxyalkanoate Binder for Li Metal Batteries
Dong Hyuk Kang, Minhyuck Park, Jeonghun Lee, Chan Yeol Kim, Jimin Park, Youn-Ki Lee, Jong Chan Hyun, Son Ha, Jin Hwan Kwak, Juhee Yoon, Hyemin Kim, Hyun Soo Kim, Do Hyun Kim, Sangmin Kim, Ji Yong Park, Robin Jang, Seung Jae Yang, Hee-Dae Lim, Se Youn Cho, Hyoung-Joon Jin, Seungjin Lee, Yunil Hwang, and Young Soo Yun
Thick cathodes can overcome the low capacity issues, which mostly hamper the performance of the conventional active cathode materials, used in rechargeable Li batteries. However, the typical slurry-based method induces cracking and flaking during the fabrication of thick electrodes. In addition, a significant increase Thick cathodes can overcome the low capacity issues, which mostly hamper the performance of the conventional active cathode materials, used in rechargeable Li batteries. However, the typical slurry-based method induces cracking and flaking during the fabrication of thick electrodes. In addition, a significant increase in the charge-transfer resistance and local current overload results in poor rate capabilities and cycling stabilities, thereby limiting electrode thickening. In this study, a synergistic dual-network combination strategy based on a conductive nanofibrillar network (CNN) and a nano-bridging amorphous polyhydroxyalkanoate (aPHA) binder is used to demonstrate the feasibility of constructing a high-performance thick cathode. The CNN and aPHA dual network facilitates the fabrication of a thick cathode (≥ 250 μm thickness and ≥ 90 wt% active cathode material) by a mass-producible slurry method. The thick cathode exhibited a high rate capability and excellent cycling stability. In addition, the thick cathode and thin Li metal anode pair (Li//t-NCM) exhibited an optimal energy performance, affording high-performance Li metal batteries with a high areal energy of ~ 25.3 mW h cm-2, a high volumetric power density of ~ 1720 W L-1, and an outstanding specific energy of ~ 470 W h kg-1 at only 6 mA h cm-2. TOC figure: Synergistic combination of a conductive nano-fibrillar network (CNN) and nano-bridging amorphous polyhydroxyalkanoate (aPHA) binder that affords the high-performance cathode with ≥ 250 μm thickness and ≥ 90 wt% active cathode material. Li-metal batteries (Li//t-NCM) based on thick cathodes and thin Li exhibit outstanding energy storage performance..
Advanced Fiber Materials
- Publication Date: Dec. 12, 2023
- Vol. 6, Issue 1, 00347 (2024)
Vertical-Aligned and Ordered-Active Architecture of Heterostructured Fibers for High Electrochemical Capacitance
Xiaolin Zhu, Hui Qiu, Yang Zhang, Zengming Man, Wangyang Lu, Ningzhong Bao, and Guan Wu
Architecture of fibrous building blocks with ordered structure and high electroactivity that enables quick charge kinetic transport/intercalation is necessary for high-energy-density electrochemical supercapacitors. Herein, we report a heterostructured molybdenum disulfide@vertically aligned graphene fiber (MoS2@VA-GF)Architecture of fibrous building blocks with ordered structure and high electroactivity that enables quick charge kinetic transport/intercalation is necessary for high-energy-density electrochemical supercapacitors. Herein, we report a heterostructured molybdenum disulfide@vertically aligned graphene fiber (MoS2@VA-GF), wherein well-defined MoS2 nanosheets are decorated on vertical graphene fibers by C–O–Mo covalent bonds. Benefiting from uniform microfluidic self-assembly and confined reactions, it is realized that the unique characteristics of a vertical-aligned skeleton, large faradic activity, in situ interfacial connectivity and high-exposed surface/porosity remarkably create efficiently directional ionic pathways, interfacial electron mobility and pseudocapacitive accessibility for accelerating charge transport and intercalation/de-intercalation. Resultant MoS2@VA-GF exhibits large gravimetric capacitance (564 F g-1) and reversible redox transitions in 1 M H2SO4 electrolyte. Furthermore, the MoS2@VA-GF-based solid-state supercapacitors deliver high energy density (45.57 Wh kg-1), good cycling stability (20,000 cycles) and deformable/temperature-tolerant capability. Beyond that, supercapacitors can realize actual applications of powering multicolored optical fiber lamps, wearable watch, electric fans and sunflower toys..
Advanced Fiber Materials
- Publication Date: Jan. 05, 2024
- Vol. 6, Issue 1, 00349 (2024)
Multifunctional and Reconfigurable Electronic Fabrics Assisted by Artificial Intelligence for Human Augmentation
Zihan Chen, Wansheng Lin, Cuirong Zhang, Yijing Xu, Chao Wei, Huanqiang Hu, Xinqin Liao, and Zhong Chen
Noninvasive human augmentation, namely a desirable approach for enhancing the quality of life, can be achieved through wearable electronic devices that interact with the external environment. Wearable electronic devices endure limitations, such as unreliable signal interaction when bent or deformed, excessive wiring reNoninvasive human augmentation, namely a desirable approach for enhancing the quality of life, can be achieved through wearable electronic devices that interact with the external environment. Wearable electronic devices endure limitations, such as unreliable signal interaction when bent or deformed, excessive wiring requirements, and lack of programmability and multifunctionality. Herein, we report an intelligent and programmable (IP) fabric sensor with bending insensitivity that overcomes these challenges associated with a rapid response time (< 400 μs) and exceptional durability (> 20,000 loading–unloading cycles). A single-layer parallel electrical bilateral structure is utilized to design the IP fabric sensor with reconfigurability and only two electrodes, which caters to the requirement of stable interactions and simple wiring. The multifunctionality of the IP fabric sensor is demonstrated by designing a closed-loop interactive entertainment system, a smart home system, and a user identification and verification system. This integrated system reveals the potential of combining Internet of Things technology and artificial intelligence (AI). Hopefully, the integration of the noninvasive IP fabric sensor with AI will facilitate the advancement of interactive systems for human augmentation..
Advanced Fiber Materials
- Publication Date: Dec. 14, 2023
- Vol. 6, Issue 1, 00350 (2024)
Ionic Power Generation on a Scalable Cellulose@polypyrrole Membrane: The Role of Water and Thermal Gradients
Chenyu Liu, Jixiang Gui, Danhong Li, Zhongxin Liu, Yijun Shen, Wei Huang, Huihui Wang, and Xinlong Tian
The integration of ionic power generation with solar-driven water evaporation presents a promising solution to the critical global problems of freshwater scarcity and clean energy deficiency. In this work, a scalable normal temperature chemical vapor deposition (CVD) method is applied for the first time to the fabricatThe integration of ionic power generation with solar-driven water evaporation presents a promising solution to the critical global problems of freshwater scarcity and clean energy deficiency. In this work, a scalable normal temperature chemical vapor deposition (CVD) method is applied for the first time to the fabrication of a cellulose@polypyrrole (CC@PPy) membrane with efficient ionic power generation performance. The excellent ionic power generation is intimately related to the water and thermal gradients across the membrane, which not only induces fast water evaporation but also synergistically promotes the transport of counterions in charged nanochannels, and the corresponding mechanism is attributed to the streaming potential resulting from the ionic electrokinetic effect and the ionic thermoelectric potential originating from the Soret effect. Under one sun illumination, the CC@PPy film can produce a sustained voltage output of ~ 0.7 V and a water evaporation rate up to 1.67 kg m-2 h-1 when an adequate water supply is available. This study provides new methods for the scalable fabrication of ionic power generation membranes and a design strategy for high-performance solar power generators..
Advanced Fiber Materials
- Publication Date: Feb. 07, 2024
- Vol. 6, Issue 1, 00353 (2024)
Advancing Smart Biomedical Textiles with Humanoid Robots
Zekun Liu, and Pierre-Alexis Mouthuy
Smart implantable biomedical textiles with sensing functions are of increasing interest because they address the shortcoming that conventional medical devices have repair functions but lack of sensing ability. However, the evaluation of such devices before practical applications is hampered by high cost and/or animal eSmart implantable biomedical textiles with sensing functions are of increasing interest because they address the shortcoming that conventional medical devices have repair functions but lack of sensing ability. However, the evaluation of such devices before practical applications is hampered by high cost and/or animal ethics. Soft bioreactors on humanoid robots open up a new pathway for assessing their performances by closely mimicking both the body biomechanics and the physiological environment..
Advanced Fiber Materials
- Publication Date: Jan. 15, 2024
- Vol. 6, Issue 1, 00357 (2024)
Flexible Copper-Doped Silica Fibers Promote Infected Conjunctival Tissue Repair Through Antibacterial and Anti-inflammatory Effects
Jie Cui, Yuchen Cai, Xiao Yu, Yihong Shen, Tianyi Zhou, Binbin Sun, Pengfei Cai, Zhengchao Yuan, Muhammad Shafiq, Mohamed EL-Newehy, Hany EL-Hamshary, Xingping Zhou, Yao Fu, and Xiumei Mo
The conjunctiva is crucial in safeguarding the eye from harm or infection, thereby ensuring the preservation of the vision. The repair of infected conjunctival damage is necessary. The objective of this study is to develop copper-doped flexible silica nanofibers (SiO2@Cu NFs) with multifunctional antibacterial and antiThe conjunctiva is crucial in safeguarding the eye from harm or infection, thereby ensuring the preservation of the vision. The repair of infected conjunctival damage is necessary. The objective of this study is to develop copper-doped flexible silica nanofibers (SiO2@Cu NFs) with multifunctional antibacterial and anti-inflammatory characteristics. The continuous release of copper ions from electrospun membranes is shown to be effective to promote antibacterial and bioactive functions. Nanofiber membranes also exhibit biocompatibility and promote cell growth, angiogenesis, and inflammation modulation. In vivo evaluations further reveal the therapeutic efficacy of SiO2@Cu NFs to promote the structural and the functional recoveries of the conjunctiva. Taken together, SiO2@Cu NFs may hold significant promise for the fabrication of alternative ocular bandage to suppress bacterial infection and promote repair of ocular tissues and may potential be also used for related disciplines. Schematic diagram showing the fabrication of SiO2@Cu NFs for the regeneration of infected conjunctiva..
Advanced Fiber Materials
- Publication Date: Feb. 01, 2024
- Vol. 6, Issue 1, 00358 (2024)
Growth-Controllable Spindle Chain Heterostructural Anodes Based on MIL-88A for Enhanced Lithium/Sodium Storage
Zhiwen Long, Han Dai, Caiqin Wu, Zhengchun Li, Hui Qiao, Keliang Wang, and Qufu Wei
Engineering bead-on-string architectures with refined interfacial interactions and low ion diffusion barriers is a highly promising but challenging approach for lithium/sodium storage. Herein, a spindle-chain-structured Fe-based metal organic frameworks (MIL-88A) self-sacrificial template was constructed via the seed-mEngineering bead-on-string architectures with refined interfacial interactions and low ion diffusion barriers is a highly promising but challenging approach for lithium/sodium storage. Herein, a spindle-chain-structured Fe-based metal organic frameworks (MIL-88A) self-sacrificial template was constructed via the seed-mediated growth of Fe3+ and fumaric acid in an aqueous solution, which is an environmentally friendly synthesis route. The seed-mediated growth method effectively segregates the nucleation stage from the subsequent growth phase, offering precise control over the growth patterns of MIL-88A through manipulation of kinetic and thermodynamic parameters. The structural diversity, fast ion/electron diffusion, and unique interfaces of whole anodes are simultaneously enhanced through optimization of the spindle-chain structure of Fe2O3@N-doped carbon nanofibers (FO@NCNFs) at the atomic, nano, and macroscopic levels. Benefiting from their heteroatom-doping conductive networks, porous structure, and synergistic effects, FO@NCNFs exhibit a remarkable rate performance of 167 mAh g-1 at 10 A g-1 after 2000 cycles for lithium-ion batteries (LIBs) and long-term cycling stability with a sustained capacity of 260 mAh g-1 at 2 A g-1 after 2000 cycles for sodium-ion batteries (SIBs). This versatile approach for fabricating bead-on-string architectures at both the nanoscale and macroscale is promising for the development of high-energy–density and high-power-density electrode materials..
Advanced Fiber Materials
- Publication Date: Jan. 19, 2024
- Vol. 6, Issue 1, 00360 (2024)
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