JOURNAL OF APPLIED POLYMER SCIENCE
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2024
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IF 2.7
Zijian Gao,Shengyu Sun,Xin Guan,Yongqi Yang,Jian Sun,Hailun Ren,Zhaohui Jin
Ensuring adhesion over wide temperature range is of considerable significance for hydrogel-based wearable sensors, especially in extreme environments. In this research, a hydrogel with adhesive properties over a wide temperature range (−20–80°C) was prepared by copolymerizing 2-acrylamido-2-methylpropanesulfonic acid (AMPS), acrylic acid (AAc), and sodium lignosulfonate (LS) in binary solvent of H 2 O and glycerol (Gly). Hence, the hydrogel acquires adhesive properties through the establishment of non-covalent interactions with the substrate surface, encompassing hydrogen bonding, metal complexation, and electrostatic interactions. At −20°C, ambient temperature (20°C), and 80°C, the hydrogel exhibits significant shear strength of 39.8, 74.3, and 46.9 kPa. In addition, chemical crosslinking points, hydrogen bonding and electrostatic interaction are imparted with good mechanical properties to withstand large tensile and flexible deformation, achieving a fracture stress of 120 kPa and a strain of 14,288%. Furthermore, the hydrogel exhibits outstanding electrical conductivity, reaching up to 1.58 S/m owing to a substantial concentration of free conductive ions. Moreover, this sensor is able to provide a constant and stable change in electrical resistance signal and is used to monitor human movement signals. This makes it possible to employ AAc/AMPS/H 2 O/Gly/LS hydrogels as wearable flexible sensors in extreme environments.
研究领域:
材料科学
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生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF POWER SOURCES
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2025
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IF 7.9
Jun Han,Changchun Fan,Dian-sen Li,Lei Jiang
The application of conductive polymer hydrogels in flexible energy storage devices has gained a great deal of attention. In this paper, the hydrogel integrating water retention and antifreeze properties is realized by the organic binding of polyvinyl alcohol (PVA) chains and NaClO 4 . The composite hydrogel is assembled with MnO 2 /carbon fiber and activated carbon fiber to constitute a flexible quasi-solid-state supercapacitor. The capacitor can cycle 25,000 times with the capacitance retention of 81 % when exposed directly to the external environment. In addition, the capacitor can store charge consistently and stably between −40 °C and 40 °C. This demonstrates the excellent environmental stability of the composite gel, which ensures stable operation of the device under extreme conditions. Excitingly, the mechanics of PVA composite gel electrolyte can be dynamically coordinated using the Hofmeister effect. The longer the flexible quasi-solid supercapacitor is soaked in 1.5 M Na 2 SO 4 solution, the stronger the mechanical properties are. There are new thoughts in engineering new flexible supercapacitors with this biological compatibility and multi-functional conductive hydrogel.
研究领域:
材料科学
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能源存储
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环境工程
✓ 已验证
产品关联
DOI
高影响因子
CHEMISTRY-A EUROPEAN JOURNAL
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2021
·Vol. 27
·期 52
·13161-13171
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IF 5.236
Chunxiao Chai,Mengjiao Yi,Zhuo Zhang,Zhaohui Huang,Qi Fan,Jingcheng Hao
Graphical High stretchability (more than 1000 %) and conductivity (0.67 S/m) emulsion gels were fabricated from emulsions and the introduction of glycerol endowed them with broad operating temperature (−20 to 90 °C). The emulsion gel based strain sensors showed high sensitivity (gauge factor=6.240), fatigue resistance, self-healing and adhesion properties, realizing the repeatable and accurate detection of full-range human motions. Hydrogels with mechanical elasticity and conductivity are ideal materials in wearable devices. However, traditional hydrogels are fragile upon mechanical loading and lose functions in climate change because the internal water undergoes freeze and dehydration. Herein, we synthesize stable emulsions at high and low temperatures by introducing glycerol into the W/W emulsions. Then the high-stable emulsions are used as templates to produce the freestanding emulsion gels with enhanced mechanical strength and conductivity. The introduction of glycerol endows emulsions and emulsion gels with high and low temperature resistance (−20 to 90 °C). The fabricated strain sensors based on emulsion gels show high sensitivity (gauge factor=6.240), high stretchability (1081 %), fatigue resistance, self-healing and adhesion properties, realizing the repeatable and accurate detection of various human motions. These high-performance and eco-friendly emulsion gels can be promising candidates for next-generation artificial skin and human-machine interface.
研究领域:
材料科学
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生物医学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF POWER SOURCES
·
2023
·
IF 9.2
Ziyan Yuan,Fuyu Xiao,Yixing Fang,Peixun Xiong,Xiaoli Sun,Xuehui Duan,Xuhui Yang,Haosen Fan,Mingdeng Wei,Qingrong Qian,Qinghua Chen,Lingxing Zeng
Designing cathodes with long service life, remarkable rate capability and all-climate workable is crucial to improve the performance of aqueous zinc-ion batteries (AZIBs). Herein, we constructed a vanadium dioxide/graphene oxide (VO 2 (B)/GO) sample that combines VO 2 with GO through hydrothermal route and can simultaneously provide rate capability. VO 2 (B)/GO is rich in oxygen vacancies , which weakens the electrostatic force , and GO prevents vanadium oxidation . Density functional theory (DFT) calculations elucidate oxygen vacancies can offer more storage sites with increased reaction kinetics. The electrode exhibited a high reversible capacity of 423 mAh g −1 at 0.5 A g −1 and preserved long-life cycling properties at 15 A g −1 . The presence of oxygen vacancies and GO can contribute to the excellent performance and prevent the structure of VO 2 from collapsing during cycling. We successfully lit up commercial light-emitting diode (LED) lights with a VO 2 (B)/GO electrode. In addition, VO 2 (B)/GO exhibits excellent performance in all-climate conditions (-15-60 °C). This combinatorial design strategy provides a broadly applicable approach for durability and all-climate workable batteries .
研究领域:
材料科学
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电化学
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储能技术
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2022
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IF 6.371
Yupeng Shi,Dan Li,Haoxu Si,Yuping Duan,Chunhong Gong,Jingwei Zhang
Dielectric ceramics composites are potential high-temperature microwave absorption materials (MAMs), and the critical challenge is to achieve high-efficiency and temperature insensitive absorption characteristics suitable for wide temperature and frequency range. Herein, the electromagnetic attenuation properties of TiN/Fe 2 Ni 2 N/SiO 2 composites are studied in detail. The magnetic ceramic composites proposed exhibited stable attenuation behaviors at a wide temperature range (293–873 K). Notably, the optimal reflection loss (RL) value had reached −32.4 dB with a thickness of 2.8 mm at 373 K, and the effective absorption bandwidth (EAB) covered 3.89 GHz at 873 K. The excellent high-temperature attenuation capacity is attributed to the balancing strategy of dielectric and magnetic losses, as well as multiple polarization loss behaviors. The results showed that introducing magnetic components to form magnetic ceramic composites might shed light on the development of the TiN ceramic family for promising MAMs at a wide temperature range.
研究领域:
材料科学
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电磁学
✓ 已验证
产品关联
DOI
高影响因子
Applied Materials Today
·
2024
·
IF 7.2
Xueyan Wang,Bingyan Wang,Wenxia Liu,Xiaona Liu,Zhaoping Song,Dehai Yu,Guodong Li,Huili Wang
Elastically stretchable conductive hydrogels have garnered significant scholarly interest for their potential applications in wearable sensing technologies. Yet, these highly elastic hydrogels often display diminished sensory capacities, particularly under conditions of severe thermal variation. This investigation unveils a highly stretchable composite organohydrogel distinguished by its superior sensory proficiency and resilience to harsh thermal environments. Encapsulating carbonized crepe paper (CCP) within a hydrophobic association-driven organohydrogel-crafted through the micellar copolymerization of hydrophobic stearyl methacrylate with hydrophilic acrylamide, and incorporation of polyvinyl alcohol (PVA) and Al 3+ in a binary solvent of glycerol and water-we attained a high stretchability of 3865 %, in conjunction with augmented tensile strength and sensory acuity. Moreover, this composite demonstrates a gauge factor of 263.1 for strains ranging from 400 to 550 %, a detection threshold of 0.1 %, swift response/recovery times (161/152 ms), and sustained durability over 1000 cycles at a 100 % strain. Such attributes facilitate its deployment in the realms of health monitoring, activity sensing, gesture recognition, and wireless motion control, even under extreme thermal conditions, heralding a pioneering strategy for the creation of cost-efficient, high-efficacy electronic conductive hydrogels.
研究领域:
材料科学
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生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2023
·
IF 5.9
Jingjing Li,Xiangyu Lin,Xinxin Yang,Xu Xu,He Liu,Minghui Zuo
Flexible sensors have been widely developed in recent years with the growing popularity of the Internet of Things, resulting in a large amount of electronic waste that poses potential environmental problems. Due to the increasing concern about environment, the use of biomass resources to prepare environmentally friendly and recyclable materials is of significant research interest. Meanwhile, self-healing, sensitive monitoring of signal changes, and the ability to be used in extreme environments are also critical features of flexible sensors. Herein, a bio-based conductive non-isocyanate polyurethane (NIPU) was obtained by the reaction of carbonated soybean oil (CSBO) with polyaminopropylmethylsiloxane (PAPMS). And carbon black (CB) was introduced as a conductive filler. The mechanical properties and electrical conductivity of the NIPU were adjusted by changing the molar ratio of amino to cyclic carbonate and adding CB. The prepared NIPU can show excellent thermal stability, solvent resistance, tensile properties, and self-healing ability (above 90% healing rate). In addition, due to the flexible segment of siloxane in the network, NIPU can exhibit high tensile strain (> 400%) at extremely low temperatures (−40 °C) without being destroyed, and the actions of volunteers can be sensed and converted into sensitive and stable electrical signals over a wide temperature range (−40 to 60 °C). The highly elastic NIPU sensor displays great promise for applications in wearable electronics in harsh environments.
研究领域:
材料科学
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环境科学
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生物基材料
✓ 已验证
产品关联
DOI
高影响因子
Energy Storage Materials
·
2024
·
IF 18.9
Xinglin Jiang,Haitao Zhang,Yuanxiao Qu,Zixing Wang,Yanting Xie,Wen Zhang,Haitao Hu,Zhengyou He
Developing highly reliable electrochemical energy storage (EES) devices over a wide-temperature range are urgent for some extreme application. Conventional electrolytes commonly make EES operate at only −30–60 °C since they suffer from sluggish ion-transport kinetics at low temperature while decomposition failure at high temperature. Herein we report a strong-weak coupled electrolyte to develop wide-temperature supercapacitor . Specifically, fluoroethylene carbonate as strong-solvation solvent acts on enhancing the ionic conductivity by dissociation the ion pairs while ethyl acetate as a weak-solvation solvent plays a role in taming the affinity between solvents and ions. As a result, the as-prepared electrolytes exhibit a considerably high conductivity (1.17–29.40 mS cm −1 at −70 to 80 °C). This strong-weak coupled electrolyte-based supercapacitor can operate stably over a wide temperature range from −70 °C to 80 °C. Also, the strong-weak coupling effect endows wide-temperature supercapacitor with excellent electrochemical properties including energy density of 35.7 Wh kg −1 , power density of 21.1 kW kg −1 , 82.4 % capacitance retention after 50, 000 cycles, and low self-discharge rate.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Chen Cheng,Changyong Zhao,Shuiping Cai,Yingkang Tian,Rongjin Lin,Dan Luo,Xiaofei Yang,Xuejie Gao,Runcang Sun
Inhomogeneous lithium deposition and dendrite growth severely restrict the achievable energy density of both solid-state and liquid lithium metal batteries (LMBs). While the application of functional separator materials can effectively mitigate these issues, existing research predominantly focuses on either liquid or solid-state batteries, with limited dual application in both systems. Herein, in this work, an Al 2 O 3 @bacterial cellulose (Al 2 O 3 @BC) separator is proposed to realize the dual application from liquid to a wide-temperature range of solid-state LMBs. X-ray Photoelectron Spectroscopy (XPS) and High-Resolution Transmission Electron Microscope (HRTEM) analyses revealed that the an in-situ formed Li-Al-O protective layer on the lithium metal surface facilitated the uniform diffusion and nucleation of lithium ions (Li + ). Consequently, both liquid and polyethylene oxide (PEO)-based solid-state lithium-symmetric batteries assembled with Al 2 O 3 @BC can operate for over 2000 h at a current density/ capacity of 0.1 mA cm −2 / 0.1 mAh cm −2 . The NCM523 full cell with Al 2 O 3 @BC delivers 150.3 mAh g −1 at 0.2C after 120 cycles. More importantly, the ionic conductivity (4.63 × 10 −4 S cm −1 ) in solid-state batteries is also significantly promoted, and the LFP full cells demonstrating stable cycling across a broad temperature range of − 20 °C to 60 °C.
研究领域:
材料科学
·
能源技术
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Ziyan Pu,Zengquan Zhu,Xiao-Jun Lv,Yueming Li
Conventional lithium-ion batteries (LIBs) are nearing their theoretical capacity limit, and there is an urgent need to develop energy storage devices with higher energy densities and cycling stabilities. In this work, a hybrid electrode design, which combines the traditional “rocking chair” mechanism and “anion intercalation” mechanism to improve energy density is reported. The hybrid electrode is composed of LiMn 2 O 4 and N,P-doped graphite (NPG) to use both anion and cation storage mechanisms. This design enhances the electrochemical potential windows and the energy density of the fabricated cell. Electrochemical results show that the fabricated cell not only shows a 44.1 % higher capacity than conventional LIBs. It displays a stable cycle life across a wide climate temperature range from − 20 to 25 °C, with a capacity retention rate of 86 % after 600 cycles at 100 mA g −1 . This study demonstrates the critical role of doping graphite with N and P to improve the electrochemical performance of graphite in deep charge/discharge, providing a valuable strategy for developing cathode materials in dual-ion batteries.
研究领域:
材料科学
·
能源存储技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Hao Sun,Yunfei Wang,Yafei Liu,Ruifeng Wu,Aimin Chang,Pengjun Zhao,Bo Zhang
Next-generation high-temperature applications increasingly rely heavily on advanced thermistor materials with enhanced thermal stability and electrical performance. However, thus far, the great challenge of realizing high thermal stability and precision in a wide temperature range has become a key bottleneck restricting the high-temperature application. Here, we propose a high-entropy strategy to design novel high-temperature thermistor ceramics (La0.2Ce0.2Nd0.2Sm0.2Eu0.2)NbO4. Differences in atomic size, mass, and electronegativity in this high-entropy system cause high lattice distortion, substantial grain boundaries, and high dislocation density. These enhance the charge carrier transport and reduce the grain boundary resistance, thus synergistically broadening the temperature range. Our samples maintain high precision and thermal stability over a wide temperature range from room temperature to 1523 K (ΔT = 1250 K) with an aging value as low as 0.42% after 1000 h at 1173 K, showing breakthrough progress in high-temperature thermistor ceramics. This study establishes an effective approach to enhancing the performance of high-temperature thermistor materials through high-entropy strategies.
研究领域:
材料科学
·
电子材料
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Kefan Zhou,Min Zhang,Xiangni Zhang,Tianyu Wang,Helin Wang,Zhiqiao Wang,Xiaoyu Tang,Miao Bai,Shaowen Li,Zhaohui Wang,Yue Ma
The lightweight solid electrolyte design in replacement of the flammable liquid electrolyte and polyolefin separator is the key of the energy-dense all-solid-state batteries (ASSBs) construction. However, the technological barriers of scalable manufacturing, retarded ionic conductivity at room temperature as well as the mechanical fragility upon the high-temperature operation restrict the ASSB deployment of practical relevance. In this study, an ultra-lightweight (1.67 mg cm −2 ), thin (25 μm), high strength and thermally robust (stability up to 180 °C) composite solid electrolyte (CSE) has been designed to address the dilemma by the rational integration of polyethylene glycol monomethyl ethers coated Li 6.4 La 3 Zr 1.4 Ta 0.6 O 12 nanofillers (MPEG@LLZTO) with lightweight nanocellulose scaffold. The MPEG coating layer enhances the interfacial compatibility and homogeneous dispersibility of LLZTO nanofiller within the poly (ethylene oxide) (PEO) matrix, while the mechanically flexible and thermally stable nanocellulose scaffold guarantees the formation of the high-temperature endurance and structural robustness for the as-formed CSE layer. Upon the solvent-free, layer stacked-up assembly of the PEO/MPEG@LLZTO-Nanocellulose (PLCN) CSE film with the high-mass-loading LiFePO 4 cathode and thin-layer lithium anode, the ASSB prototype could simultaneously realize the high gravimetric energy density (323 Wh kg −1 ), cycling stability as well as operation reliability within a wider temperature range (25 °C ∼ 130 °C).
研究领域:
材料科学
·
能源技术
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）