INDUSTRIAL CROPS AND PRODUCTS
·
2025
·
IF 6.2
Lijia Jia,Liying Zhang,Zhenghan Cai,Feng Zhu,Biao Huang,Qilin Lu
Integrating superior flexibility, conductivity, energy harvesting and broad working temperatures into cellulose hydrogel for deformable energy storage and self-powered sensors has become urgent. Herein, an ultra-flexible anti-freezing conductive versatile hydrogel is developed via synchronously regulating polyvinyl alcohol (PVA) with cellulose nanocrystals (CNCs) and covalent organic frameworks (COFs) to form a multiple hydrogen-bonded ordered network under phytic acid (PA) crosslinking synergy. Introducing COFs into hydrogel network provides continuous protons transport channel while PA generates protons and permanently secures the hierarchical structure of hydrogel, and thus endowing the hydrogel with exceptional proton conductivity (2.46 S/m), ultra-flexibility (tensile strain of 725 %), and outstanding antifreeze conductivity (withstand −40 °C). With these attributes, the hydrogel assembled supercapacitor exhibits stable energy storage capacity (84.7 mF/cm²) and bending resilience (endure bending angles of 180°), whereas the hydrogel-based triboelectric nanogenerator (TENG) presents excellent electrical output performance. Moreover, the designed hydrogel strain sensor demonstrates high sensing sensitivity, enabling stable monitoring of various joint movements and subtle facial expressions. Overall, this study presents a promising approach for designing biomass-based versatile hydrogels with outstanding mechanical performance and energy harvesting and storage functionality for emerging applications in self-powered flexible sensors.
研究领域:
材料科学
·
能源技术
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
He Huang,Can Wu,Shiqi Wu,Ruiqun Pan,Lianhua Yin,Xiangyu Jin,Yiwu Pan,Hebing Wang,Xiaojie Yan,Changqing Hong,Wenbo Han,Xinghong Zhang
Soft and thermostable materials are crucial to applications in the fields of aerospace, wearable materials, and artificial intelligence (AI) in harsh environments. However, decided by the molecular structures, most soft materials are easy to pyrolyze at 100–200 °C, hindering developments in the critical technologies for such applications. In this work, through a rational “slice/sphere” dual-morphology microstructure design, a hydrogen-bonded polyimide/silicone aerogel is obtained with a two-step-gelling process. As rationally discussed with evidence, the recoverable “air compression” and the “silicone sphere deformation” contribute to the superflexibility, with the low elastic modulus (0.155 kPa), high cyclic compressive strain (90%), and good fatigue-resistance (600 cycles at 50% strain). Additionally, the structure and components together endow the composite with light weight (0.14–0.16 g cm −3 ), low bulk shrinkage (less than5%), superhydrophobicity (water contact angle of 150.1°), prominent thermostability (weight remains 90% at 474 °C), promising thermal insulating performance below 600 °C, and stable sensing ability at 300 °C. The efficient thermal insulation, sensible pizeopermittivity and endurance in a wide temperature window (−196–400 °C) make it feasible for conformal thermal protection and strain sensors for aerospace, and AI applications under harsh conditions.
研究领域:
材料科学
·
航空航天工程
·
人工智能材料
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Zhiyang Zhao,Yi Cui,Yong Kong,Jian Ren,Xing Jiang,Wenqian Yan,Mengyuan Li,Jinqiong Tang,Xueqiang Liu,Xiaodong Shen
A superflexible hydrophobic silica-based aerogel (FHSA) was prepared via a facile sol–gel process and ambient pressure drying method. The FHSA was treated at different temperatures varying from −196 to 450 °C to evaluate its thermal and mechanical performances. The evolutions of the physical property, hydrophobicity, microstructure, pore structure, and chemical structure of the FHSA with the various treatment temperatures were investigated comprehensively. The structure of the FHSA did not show an obvious change after treatment in the liquid nitrogen. The bulk density of the FHSA increased from 0.047 to 0.077 g cm–3 when the thermal treatment temperature increased from 25 to 450 °C. The specific surface area and pore volume of the FHSA increased with the treatment temperature owing to the decomposition of the organic moieties. The Fourier transform infrared spectra showed that the methyl groups in the FHSA had excellent thermostability up to 400 °C. The water contact angles of the FHSA after treatment at −196, 25, 200, 300, 350, 400, and 450 °C were 131, 151, 162, 150, 132, 119, and 34°, respectively. The thermal conductivity of the FHSA at a low temperature of −10 °C was 0.022 W m–1 K–1. The reversible deformation rate of the FHSA was more than 80% within 100 compression cycles. After treatment in liquid nitrogen, the reversible deformation rate of the FHSA remained at 50%. The synthesis method of the FHSA is simple, the resulting FHSA showed good performance both in thermostability and flexibility, and it is promisingly applied for thermal insulation and sealing in ultralow-temperature environments.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2016
·
IF 7.145
Huihui Zhang,Yan Qiao,Zhisong Lu
Textile-based supercapacitors have recently attracted much attention owing to their great potential as energy storage components in wearable electronics. However, fabrication of a high-performance, fully printed, and ultraflexible supercapacitor based on a single textile still remains a great challenge. Herein, a facile, low-cost, and textile-compatible method involving screen printing and transfer printing is developed to construct all-solid-state supercapacitors on a single silk fabric. The system exhibits a high specific capacitance of 19.23 mF cm–2 at a current density of 1 mA cm–2 and excellent cycling stability with capacitance retention of 84% after 2000 charging/discharging cycles. In addition, the device possesses superior mechanical stability with stable performance and structures after 100 times of bending and twisting. A butterfly-patterned supercapacitor was manufactured to demonstrate the compatibility of the printing approaches to textile aesthetics. This work may provide a facile and versatile approach for fabricating rationally designed ultraflexible textile-based power-storage elements for potential applications in smart textiles and stretchable/flexible electronics.
研究领域:
材料科学
·
能源存储
·
柔性电子
✓ 已验证
产品关联
DOI
PubMed
高影响因子
LANGMUIR
·
2020
·
IF 3.557
Guangyan Wang,Tianyi Zhao,Lie Chen,Kesong Liu,Ruochen Fang,Mingjie Liu
Porous polymers are of great interest in potential energy storage and environmental remediation applications. However, traditional fabrication methods are either time-consuming or energy-consuming and deteriorate the mechanical strength of polymer materials. In this study, polymerization-induced phase separation was used to realize the template-free fabrication of superflexible macroporous polymers. Since the solvent is also used as a porogen, this method can be widely used to synthesize several porous polymers by carefully choosing the solvent and monomer. Compared to nonstructured polymers, the prepared macroporous polymers exhibited enhanced mechanical strength, superflexibility, multicompressibility, and bending properties. Along with hydrophobicity/oleophilicity and macroporous structures, the as-prepared porous polymers demonstrated controllable oil absorbability and release; furthermore, after infusing with lubrication liquid, these materials can be used as antiwaxing materials. The elastic porous polymers prepared using this simple and universal method show great potential for various applications, including controlled drug release, antiwaxing, and lubrication.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Advanced Composites and Hybrid Materials
·
2025
·Vol. 8
·期 4
·1-12
·
IF 21.8
Li Cong,Liu Dizhou,Yu Hongxuan,Zhao Han,Guo Jingran,Song Chuanyun,Zhao Yingde,Zhang Jianing,Deng Yuanpeng,Dang Shixuan,Wang Duola,Chen Jiali,Yan Zhengli,Lin Tiande,Li Hui,Xu Xiang
Advanced fire protection for infrastructures and facilities requires fireproof coatings that can possess high fire resistance, thermal insulation, flexibility, and durability. Conventional coatings are usually developed by composing inorganic fillers and organic binders, still suffering from limited fireproof effect, severe fracture, and short working life. Here, we report a dual-aerogel design of robust aluminosilicate ceramic coating with natural-dried nanoporous aerogel for thermal insulation and electro-spun nanofibrous aerogel for flexible deformation. The resulting coating, with a thickness of only 3 mm, exhibits a fire superprotection performance with fire resistance up to 1400 °C, thermal conductivity of only 103.55 mW·m −1 ·K −1 at 1000 °C, hydrophobicity of contact angle up to 154°, and ultraflexibility of a 90° bending angle with 10,000 times of fatigue resistance. This unique dual-aerogel design can well resolve the formidable thermal–mechanical trade-off in fireproof coatings and establish a set of fundamental considerations in material design for fire superprotection.
研究领域:
材料科学
·
纳米技术
·
防火工程
·
高分子化学
·
热防护材料
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Qianxi Yin,Rongrong Xu,Xiaoting Wang,Mulin Li,Xianliang Huang,Ziyi Chen,Teng Ma,An Xie,Jun Chen,Haibo Zeng
Lead halide perovskite anion exchange reactions tend to be spontaneous and rapid. To achieve precise control of anion exchange and modulate the bandgaps of perovskites to meet the demands in full-color displays, a laser-induced liquid-phase anion exchange method is developed in this paper. CsPbBr3 perovskites embedded in a polymer matrix are converted to CsPb(BrxCl1–x)3 and CsPb(BrxI1–x)3 perovskites, realizing the shift from green fluorescence to blue and red fluorescence. By changing the laser parameters, the anion exchange extent and luminescence wavelength are precisely tuned, with the maximum tuning wavelength range of 431–696 nm. Due to the focusing properties of the laser, the spatial position of anion exchange can be precisely controlled, which is significant for realizing fast and accurate patterning without masks. Based on this method, blue patterns with different light-emitting wavelengths are fabricated. RGB three-color patterns on a single perovskite composite film are successfully prepared by further replacement of halogen ions. More importantly, the polymer matrix provides ultraflexibility and good stability for the films; even if the composite films are arbitrarily folded or repeatedly bent, they can still maintain good luminous intensity. This method will show great potential in the field of flexible, full-color displays.
研究领域:
材料科学
·
光电子学
·
显示技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MACROMOLECULAR MATERIALS AND ENGINEERING
·
2019
·Vol. 304
·期 10
·1900276
·
IF 3.038
Yang Meng,Bin Zhang,Juanjuan Su,Jian Han
Glass fiber reinforced polytetrafluoroethylene composites (PTFE/GF composites) with the excellent performance have been given considerable attention due to their increasing applications in large architecture areas such as stadiums, amusement parks, parking lots, etc. However, the brittleness of glass fiber can hinder the performance of PTFE/GF composites. The PTFE/MLDH (modified ZnAl-layered double hydroxide)/GF composites inspired by layer-layer structure are prepared via the multi-layered dipping method, which consists of GF acting as a reinforcement, PTFE acting as matrix, and MLDH acting as the layer-layer structure. The results of study show that the high strength and surperflexibility of PTFE/MLDH/GF composites are higher than pure PTFE/GF composites. Especially, when the PTFE/MLDH/GF composites contain 1.6 wt% MLDH, the folding endurance reaches up to 39 035 times, the tensile strength reaches up to 163.57 MPa, and strain reaches up to 8.33%. More significantly, the strength and surperflexibility are illustrated by a mechanism model and it is used to further broaden the application of PTFE/GF composites in mobile building materials. Moreover, it is discovered that the PTFE/MLDH/GF composites have unique translucent performance and excellent ultraviolet-shielding properties in this study, which further broaden its range of applications.
研究领域:
材料科学
·
仿生学
·
建筑工程
✓ 已验证
产品关联
DOI
高影响因子
RSC Advances
·
2018
·Vol. 8
·期 33
·18690-18697
·
IF 2.936
Qian Liu,Zijie Xu,Wu Qiu,Chen Hou,Yanan Wang,Peijian Yao,Rui Yu,Wenxi Guo,Xiang Yang Liu
Ultraflexible electronics have received extensive attention due to their favorable properties, such as superior mechanical robustness, light weight and good compatibility with large-area roll-to-roll fabrication. Here we present a flexible sandwiched tungsten trioxide/silver nanotrough network/poly(3,4-ethylenedioxythiophene)–poly(styrene sulfonate) multi-layer transparent conducting electrode with prominent conductivity (sheet resistance as low as 1.08 Ω sq−1) and transparency (85%). In particular, the flexible transparent electrode exhibits excellent mechanical robustness upon bending and stretching. This hybrid electrode can be further adhered tightly to a layer of WO3 to form an electrochromic device, which simultaneously displays a rapid switching time (0.75 s/1.82 s for bleaching/coloring) and high cyclic performance (86% retention of the initial optical contrast after cycling for 30 000 s). In addition, our electrode can also be fabricated on various flexible substrates, such as polyethylene cling wrap, polydimethylsiloxane and Ecoflex, with sustained electrochromic properties after bending, twisting, stretching and even strong kneading. Our work provides new opportunities for the next generation of flexible and wearable electronics applied on various flexible substrates.
研究领域:
材料科学
·
纳米科技
·
柔性电子学
·
功能材料
·
电化学
·
高分子材料
·
器件物理
✓ 已验证
DOI
高影响因子
Advanced Materials Technologies
·
2022
·Vol. 7
·期 6
·2101131
·
IF 8.856
Cong Huang,Zhuang Hao,Ziran Wang,Hao Wang,Xuezeng Zhao,Yunlu Pan
An ultraflexible and transparent graphene-based field-effect transistors (GFET) wearable nanosensor is presented for detection of body fluid-biomarkers. The nanosensor is functionalized with a receptor that can specifically bind with the biomarker, resulting in a detectable change in the carrier concentration of the graphene. After recovery from 100 cycles of deformations (bending at radii 175 µm, folding at 150 ° , and shrinking at 50%), no visible mechanical damage is observed, and electrical properties of the nanosensor are also highly consistent. L-cysteine, associated with various diseases, is chosen as the biomarker to demonstrate the detection capability of the sensor. The nanosensor is capable of consistently and reliably detecting L-cysteine with a limit of detection of 0.022 × 10 −6 m in undiluted human sweat and 0.043 × 10 −6 m in artificial tears. The sensor is fabricated from the 1 µm transparent polyethylene glycol terephthalate substrate and WO 3 /Au/WO 3 electrode (transparency of 81%), and it can be mounted on the eyeball in tear detection without visual influence. These results demonstrate that the ultraflexible and transparent GFET wearable nanosensor can potentially be helpful in medical detection applications.
研究领域:
生物医学工程
·
材料科学
·
传感器技术
✓ 已验证
产品关联
DOI
高影响因子
Gels
·
2023
·Vol. 9
·期 2
·162
·
IF 4.6
Song He,Chunhua Du,Hongliang Sheng,Chunxiang He,Xinyu Liu,Xin Jin,Qilin Chen,Fuliang Tian
The application of silica aerogel has been limited because of its poor mechanical properties. In order to expand the application scope of silica aerogel, this study fabricated an ultra-flexible conductive silica aerogel as a multiparameter sensor. The sample is fabricated by introducing poly (3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) on a base of ultra-flexible silica aerogel, which was prepared by a diene synthesis reaction at atmospheric pressure. The pressure, temperature, and humidity can be converted into electrical signals. The pressure sensitivity can reach up to 54.88 kPa−1, and the detection limit is as low as 5 Pa. The temperature resolution is up to 0.1 K, and the response time of humidity is within 4 s. More importantly, the developed multiparameter sensor can be self-powered to realize multiparameter sensing of pressure, temperature, and humidity. The ultra-flexible conductive silica aerogel is a promising candidate for monitoring human activities and fire-affected areas.
研究领域:
材料科学
·
传感器技术
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Dehua Ma,Weiwei Qin,Lin Wang,Benxue Liu,Yongshuai Xie,Guanghui Zhang,Xinqiang Wang,Luyi Zhu,Dong Xu
Ceramic fibers cannot recover from stretching, bending, and compression at high temperatures owing to their inherent brittleness, which severely restricts their practical applications in harsh environments. However, by designing and regulating grain boundary layers, their inherent brittleness can be effectively decreased, endowing them with high toughness and elasticity at high temperatures. Herein, amorphous silica was incorporated into the grain boundary of zirconia nanograins in fibers to successfully prepare chemically bonded zirconia–silicon biphasic fibers (ZSFs) and fibrous membranes (ZSFMs). ZSFMs exhibit excellent tensile strength; excellent resistance to fatigue from buckling, tension, and compression; low thermal conductivity (20.87 mW·m–1·K–1 at −40 °C and 68.53 mW·m–1·K–1 at 1000 °C); and low density (30–50 mg·cm–3). Moreover, ZSFMs exhibit extraordinary thermal insulation performance. The design of flexible, bendable, and high-strength ZSFMs offers a method for using brittle ceramic components in military and civilian applications and many other fields.
研究领域:
材料科学
·
陶瓷
·
纳米技术
·
机械工程
·
热工工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）