JOURNAL OF ALLOYS AND COMPOUNDS
·
2023
·
IF 6.2
Zhiyuan Zhang,Zhihao Sun,Shibo Sun,Jinyu Liu,Jiqiong Jiang,Wei Shang,Yuqing Wen
As a kind of clean energy, magnesium batteries have become the main research direction of next-generation batteries. A long voltage lag time and irreversibility in aqueous electrolytes are problems faced by magnesium aqueous batteries. For the first time, we modified the anode of a magnesium aqueous battery with MXene . The modified battery not only reduced the voltage lag time of the battery but also improved the reversibility, cycle stability, and intermittent discharge performance of the magnesium aqueous battery. The calculation results of density functional theory showed that there is a high adsorption energy between MXene film and magnesium alloy . The calculation results of the ion diffusion energy barrier indicated that magnesium ions have a lower migration barrier on the surface of the MXene film layer. This research is of great significance to the development and application of magnesium batteries.
研究领域:
材料科学
·
能源存储技术
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DOI
高影响因子
MATERIALS CHEMISTRY AND PHYSICS
·
2024
·
IF 4.3
Jinyu Liu,Huajuan Yu,Wenzi Huang,Zhe Zhang,Wei Shang,Jiqiong Jiang,Yuqing Wen
Magnesium is a promising anode material . However, the magnesium anode will quickly react with the electrolyte to form an ion-insulated passivation film, resulting in voltage hysteresis. Because the magnesium anode is easily corroded, it leads to a decrease in its electrochemical performance. In this paper, the anode of the magnesium battery was modified by ZIF-8 coating. The ZIF-8 coating can largely prevent contact between water in the solution and the surface of the magnesium anode, which can inhibit the passivation of the magnesium anode. The voltage hysteresis time is significantly reduced from 4 s before modification to 0.3 s, which also effectively reduces the resistance of the battery. Compared with the unmodified magnesium battery, the modified magnesium battery has a larger initial voltage and a longer discharge platform. The anode utilization rate is doubled compared with that before modification, and the specific energy density is also greatly improved. The ZIF-8 coating with porous network structure and hydrophobicity can slow down the infiltration of corrosive substances to some degree, prolong its transmission path, and provide better protection for the magnesium anode.
研究领域:
材料科学
·
电化学
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DOI
高影响因子
Small
·
2024
·Vol. 20
·期 35
·2401622
·
IF 13
Jian Zou,Xin Jing,Shitao Li,Peiyong Feng,Yi Chen,Yuejun Liu
Single-network hydrogels are often too fragile to withstand mechanical loading, whereas double-network hydrogels typically exhibit significant hysteresis during cyclic stretching-releasing process due to the presence of a sacrificial network. Consequently, it is a considerable challenge for designing hydrogels that are both low in hysteresis and high in toughness for applications requiring dynamic mechanical loads. Herein, the study introduced a novel “sliding tangle island” strategy for creating tough and low-hysteresis hydrogels, which are prepared through in situ polymerization of highly concentrated acrylamides (AM) to form numerous entanglements within the MXene spacing without any chemical crosslinker. The MXene entangled with long polyacrylamide (PAM) chains to form tangle island that served as a relay station to transmit stress to neighboring molecular chains. This mechanism helps alleviate stress concentration and enhances energy dissipation efficiency, thereby reducing mechanical hysteresis. The resulting hydrogel exhibited exceptional properties, including high stretchability (≈900%), low hysteresis (less than 7%), high toughness (1.34 MJ m −3 ), and excellent sensing performance to rival the commercial hydrogel electrode. Therefore, this work sheds light on feasible design of energy dissipation structure to reduce the hysteresis of the composite hydrogels.
研究领域:
材料科学
·
生物医学工程
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产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2022
·
IF 10.383
Ping Zhang,Weiyu Zhou,Yunfeng He,Ziyi Xu,Maochun Li,Wei Hong,Canhui Yang
Adhesives are ubiquitous, but the mutual exclusion between hyperelasticity and adhesiveness impedes their uses in emerging techniques such as flexible/stretchable electronics. Herein, we propose a strategy to synthesize hyperelastic adhesives (HEAs), by designating hyperelasticity and adhesiveness to the bulk and the surface of a polymer network, respectively. The bulk is hyperelastic but nonadhesive, and the surface is viscoelastic but adhesive, while the HEA is hyperelastic and adhesive. We exemplify the principle by synthesizing poly(butyl acrylate) as the bulk and poly(butyl acrylate-co-isobornyl acrylate) as the surface. The resulting HEA exhibits a low hysteresis of 4% at 100% strain and an adhesion energy of 270 J m–2. Moreover, the HEA is optically transparent, thermally stable, spontaneously adhesive to various materials, and mechanically stable against cyclic load, relaxation, and creep. We demonstrate two applications enabled by the unique combination of hyperelasticity and adhesiveness. The proposed strategy is generic, paving new avenues for stretchable yet resilient adhesives for diverse applications.
研究领域:
材料科学
·
化学工程
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2021
·
IF 5.316
Min Zhang,Chaoyong Deng
The evolution of the dynamic hysteresis with electrical field amplitude ( E ) and frequency ( f ) in the ferroelectric BaTiO 3 (BTO) single crystal films prepared by pulsed laser deposition (PLD) has been investigated systematically. A noticeable transition from the low-frequency behavior to the high-frequency one was confirmed by observing the obtained hysteresis loops and the change of the physical properties. In addition, the analysis of the theoretical model shows that the frequency dependence of domain motion is the cause of the dynamic hysteresis loop scaling behavior.
研究领域:
材料科学
·
物理学
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产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Shibo Sun,Wenzi Huang,Huajuan Yu,Zhihao Sun,Wei Shang,Yuqing Wen
The magnesium (Mg) metal anodes of magnesium batteries have attracted significant attention because of their high theoretical capacity, high safety, and low cost. Their development is hindered by the passivation characteristics of magnesium, especially the serious voltage lag and corrosion polarization in aqueous solutions. This study demonstrates a novel approach involving the electrophoresis deposition on the surface of a magnesium electrode with MXene@ZIF-67. MXene@ZIF-67 is a heterojunction material with a core-shell structure obtained from MXene and ZIF-67 by the in-situ growth method. The addition of ZIF-67 not only solves the problem of MXene layer-to-layer instability, but also improves the corrosion resistance of magnesium metal by utilizing the properties of ZIF-67 material topology. The core-shell structure design of the modified film layer enables MXene and ZIF-67 to achieve efficient synergy. On the one hand, the unique lamellar structure of MXene is utilized to achieve uniform Mg 2 + flux and reduce the interfacial resistance of the magnesium anode, and on the other hand, the unique ionic conductor performance of ZIF-67 enables precise separation of solvent molecules and simultaneous selective Mg 2+ transport. So, the film is beneficial for interfacial stability and reaction kinetics. The modified Mg battery exhibits a reduction in voltage lag time from 7.2 seconds to 1.3 seconds. A notable reduction in polarity and enhanced stability in plating and stripping was observed in magnesium metal battery for 300 cycles. The DFT calculations show that there is a high adsorption energy between the MXene@ZIF-67 film and the magnesium alloy.
研究领域:
材料科学
·
电化学
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产品关联
DOI
高影响因子
Gels
·
2025
·Vol. 11
·期 5
·369
·
IF 5.3
Limei Zhang,Hong Li,Zhiquan Li,Weimin Pan,Yi Men,Niankun Zhang,Jing Xu,Xuewei Liu
As conductive materials, ionogels have attracted significant attention for their potential applications in flexible wearable electronics. However, preparing an ionogel with mechanical properties akin to human skin while also achieving transparency, adhesion, and low hysteresis through simple processes remains challenging. Here, we introduce a multifunctional ionogel synthesized via a one-step photopolymerization method. By leveraging the good compatibility between the ionic liquid and the polymer network, as well as the hydrogen bonding and chemical crosslinking within the gel network, we achieved an ionogel with high transparency (>98%), stretchability (fracture strain of 19), low hysteresis (<5.83%), strong adhesion, robust mechanical stability, excellent electrical properties, a wide operating temperature range, and a tunable modulus (1–103 kPa) that matches human skin. When used as a conductor in soft actuators, the ionogel enabled a large area strain of 36% and a fast electromechanical conversion time of less than 1 s. The actuator demonstrated good actuation performance with voltage and frequency dependence, electrochemical stability, and outstanding durability over millions of cycles. This study provides a simple and effective method to produce multifunctional ionogels with tailored mechanical properties that match those of human skin, paving the way for their application in flexible wearable electronics.
研究领域:
材料科学
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柔性电子
·
生物医学工程
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产品关联
DOI
PubMed
高影响因子
Materials Horizons
·
2025
·
IF 10.7
Yichen Zhou,Xing Zhang,Ying Zheng,Junfeng Liu,Yongzhong Bao,Guorong Shan,Chengtao Yu,Pengju Pan
Adhesion-switchable ultralow-hysteresis polymer ionogels are highly demanded in soft electronics to avoid debonding damage and signal distortion, yet the design and fabrication of such ionogels are challenging. Herein, we propose a novel method to design switchable adhesive ionogels by using binary ionic solvents with two opposite-affinity ionic components. The obtained ionogels exhibit moisture-induced phase separation, facilitating switchable adhesion with a high detaching efficiency (>99%). Moreover, before and after phase separation, the viscoelastic behavior of the ionogels is maintained in the rubbery plateau region within common frequency ranges with ultralow mechanical hysteresis (∼3%) under large strain, enabling accurate and stable strain and pressure sensing. Accordingly, the ionogel films can be used as functional elements in a smart clamp to realize flytrap-like selective activation, based on high sensitivity to the vibration intensity from the targeted prey. This work may inspire future research on the development of advanced soft electronics.
研究领域:
材料科学
·
软电子学
·
传感器技术
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2018
·Vol. 29
·期 13
·10864-10874
·
IF 2.324
Shao Zhi,Zhuang Zhuang,Lin Haidan,Zhao Chengji
Here, a series of novel poly(ether ether ketone) containing sulfoalkylamine pendant groups (SNPEEK- x ) were synthesized by grafting copolymerization reaction. The chemical structure of SNPEEK- x was identified by 1 H NMR and the morphology of all films was measured by SAXS and TEM. The impedance varied for five orders of magnitude (from 10 7 to 10 2 Ω) as the relative humidity increasing from 11 to 97% RH. At the same time, all samples exhibited a fast response time of less than 3 s, outstanding repeatability and good long-term durability against high humidity. Especially, SNPEEK- x sensors displayed an extremely small humidity hysteresis in the impedance versus RH relationship during absorption and desorption processes. These essential properties of humidity sensors such as the impedance at various humidity, sensitivity, linearity and humidity hysteresis revealed that SNPEEK- x are suitable to be used as humidity sensors.
研究领域:
材料科学
·
传感器技术
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产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2024
·Vol. 34
·期 32
·2401607
·
IF 18.5
Shaowei Han,Yongkang Hu,Jia Wei,Songwei Li,Peipei Yang,Haoyang Mi,Chuntai Liu,Changyu Shen
Conductive hydrogels are gaining significant attention as promising candidates for the fabrication materials for flexible electronics. Nevertheless, improving the tensile properties, hysteresis, durability, adhesion, and electrochemical properties of these hydrogels remains challenging. This work reports the development of a novel semi-interpenetrating network poly(ionic liquid) hydrogel named PATV, via the in situ polymerization of acrylamide, N -[Tris(hydroxymethyl)methyl] acrylamide, and 1-vinyl-3-butylimidazolium tetrafluoroborate. The density functional theory calculations reveal that the poly(ionic liquid) in the hydrogel network acts as physical cross–linking points to construct hydrogen-bond networks. Furthermore, the hydrogen-bond networks dissipate energy efficiently and quickly, and thus stress concentration and hysteresis are avoided. The prepared hydrogel has a low hysteresis (9%), high tensile properties (900%), fast response (180 ms), high sensitivity (gauge factor = 10.4, pressure sensitivity = 0.14 kPa −1 ), and wide sensing range (tensile range: 1–600%, compression range: 0.1–20 kPa). A multifunctional sensor designed based on the designed hydrogel enables real-time, rapid, and stable response-ability for the detection of human movement, facial expression recognition, pronunciation, pulse, handwriting, and Morse code encryption. Furthermore, the assembled triboelectric nanogenerator displays an excellent energy harvesting capability, thus highlighting its potential application in self-powered flexible wearable electronic devices.
研究领域:
材料科学
·
生物医学工程
·
柔性电子
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产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2025
·
IF 19
Wenzhe Xiao,Ting He,Qigang Wang,Xiaoning Wang,Yue Lu,Weidong Zhao,Jipeng Yan,Jian Sun
Low-hysteresis merits in polymeric gel materials can significantly enhance their operational reliability and service lifetime in emerging applications such as smart wearable devices. However, fabricating gel materials with low hysteresis and high toughness remains challenging due to their intrinsic contradictory attributes, particularly in ionic liquid (IL)-based systems. Herein, a water-mediated polymer network reorganization strategy is presented for developing tough and low hysteresis ionohydrogels (IHGs) containing ILs, where the synergistic effect between covalent crosslinking and dynamic interfacial lubrication governs their exceptional performance. Water can act as a lubricating mediator to moderately attenuate interactions between ILs and polymer chains, thereby enabling the formation of dynamically adaptive networks that facilitate chain mobility and stress redistribution. Therefore, the IHGs fabricated through water content modulation achieve a well-balanced combination of high toughness (2.2 MJ m −3 ) and low hysteresis (8.1% at 400% strain). Meanwhile, the prepared IHGs demonstrate superior comprehensive performance, including high stretchability, excellent tensile strength, superior electrical conductivity, good biocompatibility, and transparency. Finally, the IHGs can function as high-performance wearable sensors and biocompatible epidermal electrodes, enabling real-time health monitoring and acquisition of high-fidelity electrophysiological signals. The simple strategy overcomes the traditional trade-offs of low hysteresis and high toughness, demonstrating exceptional potential in real-life scenarios.
研究领域:
材料科学
·
生物医学工程
·
智能穿戴设备
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产品关联
DOI
高影响因子
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
·
2016
·Vol. 310
·期 2
·671-678
·
IF 0.983
Li Shicheng,Wang Xiaoli,Huang Zhaoya,Du Liang,Zhang Dong,Tan Zhaoyi,Fu Yibei,Wang Xiaolin
In this study, we examined the sorption and desorption behavior of U(VI) on/from a Chinese bentonite in the solid–liquid system using batch experiments, and the influence of pH, ionic strength and humic acid (HA) on the sorption–desorption hysteresis in the solid–liquid system were quantitatively calculated. It was revealed that the hysteresis was enhanced with increasing pH and increasing ionic strength. HA promoted the sorption, but lower the sorption–desorption hysteresis. Meanwhile, hysteresis in ternary bentonite-HA-U system was found to be higher than that in bentonite-U-HA system, indicating different sorption structures formed because of different addition sequence.
研究领域:
环境科学
·
地球化学
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）