CHEMICAL ENGINEERING JOURNAL
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2022
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IF 16.744
Yilin Li,J.M. Cao,Linlin Li,Zeyu Yuan,Dongdong Li,Junzhi Li,Yuming Zhang,Hao Xu,Wei Han,Lili Wang
Materials used for conventional conversion-type anodes usually suffer from poor charge transfer and short lifespan, thereby limiting their utility in sodium-ion batteries (SIBs). To prevent these issues, the development of new anode materials is imperative. Herein, we used a synergistic modification strategy based on pseudo-isotopic substitution and 2D conductive skeleton support, to successfully prepare an unprecedented (Co 0.5 Ni 0.5 )S 2 @V 4 C 3 T x with carbon layer coating (C@NCS@V 4 C 3 T x ) anode materials for SIBs. We noted that the C@NCS@V 4 C 3 T x hybrid exhibited an ultrahigh reversible specific capacity of 705.6 mAh g −1 at 0.1 Ag −1 , and the corresponding reversible capacity that is 100-times higher (10 A g −1 ) at a specific heat capacity of 347.6 mAh g −1 , both higher than those of same kind batteries. Furthermore, the as-prepared hybrid also shows satisfactory long-term cycling stability, resulting from 2D skeleton V 4 C 3 T x MXene with high conductivity and robustness. Through in-situ characterization techniques and density functional theory calculations, the sodium ions storage mechanism was well-investigated, specifically, the synergy effect between the high capacity of bimetallic TMS and metallic conductivity and excellent stability of V 4 C 3 T x MXene plays an important role in high-performance achievement. Thus, assembled C@NCS@V 4 C 3 T x //Na 3 V 2 (PO 4 ) 3 full-cell delivers outstanding electrochemical properties that can be useful as a portable integrated unit for self-powered systems.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2022
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IF 16.744
Dianbo Zhang,Rui Yin,Yanjun Zheng,Qianming Li,Hu Liu,Chuntai Liu,Changyu Shen
High-performance electronic textile with outstanding strain sensing, electromagnetic interference (EMI) shielding, and Joule heating performances are highly desirable for modern integrated smart wearable electronic devices. Herein, multifunctional electronic textile based on hybrid Ti 3 C 2 T x MXene and carbon nanotubes (CNTs) conductive nanomaterials coated thermoplastic polyurethane (TPU) non-woven fabric (MCT-fabric) is fabricated via a facile dip-coating approach. Based on the synergistic MXene/CNTs conductive coating and pre-stretching induced ultrasensitive microcrack structure, tunable conductive MCT-fabric strain sensor with high sensitivity (GF is as high as 9022), wide sensing range (∼210 %), rapid response/recovery time (140/160 ms), excellent long-term stability and reliability (∼1000 cycles) is successfully constructed. Besides, benefiting from the perfect synergistic conductive network and porous fibrous network structure, the MCT-fabric displays superior EMI shielding effectiveness (∼43 dB for the MCT-fabric with a thickness of 600 μm) and excellent thermal management performance including high Joule heating temperature at relatively low applied voltages, rapid Joule heating response, sufficient heating stability and reliability. This work indicates that the high-performance multifunctional electronic textile has attractive potential for strain sensing, EMI shielding and thermal management applications in artificial intelligence and emerging wearable electronics.
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Journal of Materials Chemistry A
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2024
·Vol. 12
·期 44
·30872-30884
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IF 10.7
Haijiao Lin,Hui Wang,Yongguang Yang,Yuxuan Zhang,Ling Li,Youwei Zhao,Wenming Zhang
Smart fibers as interfaces for sensing environmental information are expected to accelerate sustainable development in the wearable era. However, challenges remain in terms of fiber versatility, low power consumption and the ability to discriminate between different mechanics. Herein, we propose a novel three-layer core–shell manufacturing strategy: the combination of coaxial spinning and spraying technology, using pure elastomers (polyurethane) as a base layer to increase the tensile range; mixing a liquid metal (LM) and carbon nanotubes (CNTs) doped into a polyurethane (PU) matrix as a durable electrode layer to reduce the power used and enhance the electron transfer pathway; spraying pleated MXene coatings to enrich the gas sensing sites. Finally, the strain sensor has an impressive gauge factor (GF) of 1.1367 ± 0.08643 (in the sensing range of 0–200%, R2 = 0.99425), a low strain detection limit of 1% and a fast response time of 0.12 s. Meanwhile, the single fibers, which are warp and weft braided, can also accurately sense changes in spatial pressure. In addition, these fibers exhibit superior electrothermal performance, with the capability to heat from room temperature to 65.7 °C at a 10 V voltage just in 50 s. Furthermore, with the strong hydrogen bonds formed between the MXene outer coating and organic gas molecules, it is highly selective for acetone, and with the excellent electrical conductivity of liquid metals, it can also be used as an electrical heating device. These results provide effective tools for building multifunctional sensing platforms for strain, pressure, temperature, and gases, which can be applied in fields such as wearable health and environmental monitoring.
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JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
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2024
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IF 11.2
Qing-Yue Ni,Xiao-Feng He,Jia-Lin Zhou,Yu-Qin Yang,Zi-Fan Zeng,Peng-Fei Mao,Yu-Hang Luo,Jin-Meng Xu,Baiyu Jiang,Qiang Wu,Ben Wang,Yu-Qing Qin,Li-Xiu Gong,Long-Cheng Tang,Shi-Neng Li
For advanced conductive hydrogels, adaptable mechanical properties and high conductivity are essential requirements for practical application, e.g., soft electronic devices. Here, a straightforward strategy to develop a mechanically robust hydrogel with high conductivity by constructing complicated 3D structures composed of covalently cross-linked polymer network and two nanofillers with distinguishing dimensions is reported. The combination of one-dimensional quaternized cellulose nanofibrils (QACNF) and two-dimensional MXene nanosheets not only provides prominent and tunable mechanical properties modulated by materials composition, but results in electronically conductive path with high conductivity (1281 mS m –1 ). Owing to the uniform interconnectivity of network structure attributed to the strong macromolecular interaction and nano-reinforced effect, the resultant hydrogel exhibits a balanced mechanical feature, i.e., high tensile strength (449 kPa), remarkable stretchability (> 1700 %), and ultra-high toughness (5.46 MJ m –3 ), outperforming those of virgin one. Additionally, the enhanced conductive characteristic with the aid of QACNF enables hydrogels with impressive electromechanical behavior, containing high sensitivity (maximum gauge factor: 2.24), wide working range (0–1465 %), and fast response performance (response time: 141 ms, recover time: 140 ms). Benefiting from the excellent mechanical performance, a flexible strain sensor based on such conductive hydrogel can deliver an appealing sensing performance of monitoring multi-scale deformations, from large and monotonous mechanical deformation to tiny and complex physiological motions (e.g., joint movement and signature/vocal recognition). Together, the hydrogel material in this work opens up opportunities in the design and fabrication of advanced gel-based materials for emerging wearable electronics.
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高影响因子
CERAMICS INTERNATIONAL
·
2024
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IF 5.1
Lu Tang,Huimin Yang,Huajing Wang,Yazhou Yang,Xiaoxia Wang,Gen Tang,Dawen Zeng
The abundant tunable functional groups and room-temperature sensing properties of MXenes have garnered increasing interest in the field of gas sensing. However, the majority of research has exclusively focused on the combined impact of external substances with MXenes functional groups, with limited exploration into the modulation of MXenes’ intrinsic functional groups. In this work, we successfully produced molten salt-modified Ti 3 C 2 T x MXene (M-Ti 3 C 2 T x ) with tunable oxygen-functionalized surfaces using the molten salt immersion method and employed it as a chemical resistive gas sensor to detect NO 2 at room temperature (RT). Using diverse analytical techniques, we propose the O−addition effect on the surface titanium atoms and the O−substitution effect on the edge carbon atoms, refining the existence form of –O functional groups as well as realizing the effective regulation of the intrinsic functional groups. With a high response (∼25.87%−100 ppm NO 2 , whose response value is five times higher than that of pristine Ti 3 C 2 T x ), relatively rapid response speed (∼99 s−25 ppm NO 2 ), high sensitivity (∼0.29 ppm −1 ), low detection limits (theoretical LoD is 3.3 ppm), good selectivity and long-term stability (maintain stable within 28 days) at RT, the sensor based on M-Ti 3 C 2 T x demonstrates excellent NO 2 sensing performance. To understand the sensing mechanism, density functional theory (DFT) calculations were conducted to explore adsorption behaviors. Theoretical analysis validates that M-Ti 3 C 2 T x has a stronger adsorption capacity for NO 2 (E ad = −1.149 eV) owing to the formation of covalent bond between the –O functional group and the nitrogen atom of NO 2 . The application of the molten salt can effectively modulate the intrinsic functional groups of MXenes, expanding the scope of MXenes surface modification engineering and creating new opportunities for enhancing the gas sensing capabilities of MXenes.
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APPLIED SURFACE SCIENCE
·
2024
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IF 6.3
Jinhao Gao,Hanwen Wang,Zhiyuan Gao,He Gui,Yanxin Wang,Jianguo Tang,Linjun Huang
The flexibility, wide response range, and ultra-high sensitivity of flexible sensors make them suitable forwearable technology, automated manufacturing, and robotics. The development of raw materials for flexible sensors and the design of their source layer structures can address a range of issues. In this article, we aim to develop flexible sensors for wearable technology by preparing MXene/PVDF@ZIF-8 multilayer nanofiber membranes through electrospinning technology. By incorporating ZIF-8 particles into PVDF fibers through in situ electrospinning technology, flexible sensors with a rough structure were obtained. We similarly employed vacuum filtration technology to introduce MXene nanosheets into PVDF@ZIF-8 nanofibers, further constructing a conductive network with a multidimensional structure in the vertical direction of the film. The performance of the prepared MXene/PVDF@ZIF-8 composite fiber membrane pressure sensor was tested, revealing its wide working range (0–125 kPa), high sensitivity (25.8–77.9 kPa -1 ), load/unload Time (20 ms/30 ms), and strong mechanical stability. Various human movements and lying postures were simulated, confirming that the sensor can effectively provide feedback on external pressure applied to the skin. This also demonstrates the broad application prospects of the flexible sensor in the field of flexible wearables.
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TALANTA
·
2024
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IF 5.6
Xueqian Xiao,Wei Ni,Yang Yang,Qinhua Chen,Yulin Zhang,Yujie Sun,Qiming Liu,Guo-jun Zhang,Qunfeng Yao,Shaowei Chen
Dopamine is an important neurotransmitter in the body and closely related to many neurodegenerative diseases. Therefore, the detection of dopamine is of great significance for the diagnosis and treatment of diseases, screening of drugs and unraveling of relevant pathogenic mechanisms. However, the low concentration of dopamine in the body and the complexity of the matrix make the accurate detection of dopamine challenging. Herein, an electrochemical sensor is constructed based on ternary nanocomposites consisting of one-dimensional Pt nanowires, two-dimensional MXene nanosheets , and three-dimensional porous carbon . The Pt nanowires exhibit excellent catalytic activity due to the abundant grain boundaries and highly undercoordinated atoms; MXene nanosheets not only facilitate the growth of Pt nanowires, but also enhance the electrical conductivity and hydrophilicity ; and the porous carbon helps induce significant adsorption of dopamine on the electrode surface. In electrochemical tests, the ternary nanocomposite-based sensor achieves an ultra-sensitive detection of dopamine (S/N = 3) with a low limit of detection (LOD) of 28 nM, satisfactory selectivity and excellent stability. Furthermore, the sensor can be used for the detection of dopamine in serum and in situ monitoring of dopamine release from PC12 cells. Such a highly sensitive nanocomposite sensor can be exploited for in situ monitoring of important neurotransmitters at the cellular level, which is of great significance for related drug screening and mechanistic studies .
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PubMed
高影响因子
ACS Applied Nano Materials
·
2025
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IF 5.5
Xi Huang,Xiaolan Liang,Chunzhi Zhang,Yunhua Chen,Chaoyang Wang,Li Zhou,Tao Wang,Chunlin Feng,Hongxia Liu
The rise of the Internet of Things highlights the need for wearable piezoresistive sensors capable of integrating sensing devices with broader applicability and more advanced sensing functionalities. However, the development of multifunctional hydrogel sensors that meet the diverse needs of practical applications continues to present a substantial challenge. In this study, N-isopropylacrylamide/MXene/Fe3O4 (PNMF) composite hydrogels were synthesized via a straightforward one-pot method. The PNMF-based sensor exhibits multimode sensing abilities for pressure, magnetic, and temperature, with MXene and Fe3O4 nanoparticle providing electrical and magnetic response properties. Importantly, the temperature response is controlled by adjusting the MXene nanosheet content, which modifies the lower critical solution temperature (LCST) of the PNMF composite hydrogels. The PNM2F2-based pressure/magnetic/temperature sensor shows sensitivities of 0.40 and 0.23 kPa–1 in the 0–390 and 390–1040 Pa ranges, respectively. In the magnetic field ranges of 0–1.61, 1.61–4.25, and 4.25–40.93 mT, the field sensitivities are 26.93, 4.54, and 0.36 T–1, respectively. The PNMF composite hydrogel, as a multimode sensor, not only detects real-time human joint movement through pressure sensing but also operates as both a magnetic and temperature control switch, enabling detection of magnetic field strength and body surface temperature. This demonstrates its multimode sensing capability in more complex scenarios.
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CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Haoyu Wang,Ping Han,Ying Yu,Shaolong Han,Yue Qiao,Yuehan Li,Bin Sun,Zheng Gu
Conductive hydrogels have been extensively investigated and demonstrate promising applications in wearable and flexible sensors. However, their broader implementation in this field is hindered by the insufficient strain sensitivity, susceptibility to mechanical damage with limited self-recovery, and inadequate adhesion to human skin. Herein, we present a multifunctional MXene/TA@CNC electronic hydrogel patch (MTC e-patch) by integrating highly conductive two-dimensional (2D) transition metal carbides (MXene) and tannic acid-coated carboxylated cellulose nanocrystals (TA@CNC) with polyvinyl alcohol and borax. And dynamic three-dimensional (3D) network is formed through synergistic dynamic hydrogen bonding and dynamic borate ester linkages. The incorporation of TA@CNC effectively prevents the oxidation of MXene, thereby extending the operational lifespan of hydrogels. The flexible covalent crosslinked network, combined with the rigidity of TA@CNC, imparts the MTC e-patch with excellent electrical conductivity (1.62 S/m), superior mechanical strength (≈1.35 MPa, 930 %), robust adhesiveness (≈28 kPa), and high self-healing capability (92 %). The rapid (161 ms) and sensitive (Gauge factor = 4.39) sensing performance of the developed wearable sensor enables the precise detection of subtle human motions, such as swallowing, throat vibrations during speech, and pen strokes during writing. Even when damaged, the sensor continues to provide stable signal output, demonstrating significant potential for applications in smart wearables, electronic skins, and human–machine interfaces.
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高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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2025
·
IF 3.9
Songyue Pan,Jingqiang He,Weijie Wang,Jiatong Yan,Shan Jiang,Chuanxi Lin,Hong Tang,Ronghui Guo
With the development of the internet of things (IoT) and the rise of the concept of the internet of everything, wearable sensor devices are booming as mobile terminals and have a huge market value. However, the fabrication of nanofiber membrane-based pressure sensors with special microstructures remains a significant challenge. In this study, template-assisted electrospinning was used to fabricate microhemispherical thermoplastic polyurethane (TT) nanofiber membranes. The preparation of MXene@CNTs/TT (MCTT) nanofiber membranes was conducted via the ultrasound-assisted dip-coating method, utilizing MXene and carbon nanotubes (CNTs) as composite conductive materials. Subsequently, polydimethylsiloxane (PDMS) encapsulation was employed to prepare PDMS-MCTT conductive nanofiber membranes. Utilizing an aligned assembly strategy based on the microhemispherical structure, the PDMS-MCTT bilayer pressure sensor exhibits high sensitivity (Smax = 471.3 kPa–1), wide pressure range (0–521.6 kPa), low detection limit (0.003 kPa), fast response time (7 and 8 ms) and reliable cycling performance (3000 cycles). In addition, the sensor offers excellent breathability and hydrophobicity (contact angle of 132.7°). Usefulness of the sensor in detecting body signals highlights its potential for motion detection and health monitoring.
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高影响因子
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
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2024
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IF 11.2
Peng Wang,Haohang Yuan,Baoluo He,Ruisheng Guo,Shujuan Liu,Qian Ye,Feng Zhou,Weimin Liu
The potential of organic coatings in antifouling applications has been well-documented. Beyond their exceptional antifouling effects, these coatings should also possess good mechanical strength and self-healing capabilities. Herein, a novel vinyl-based ionic liquid [VEMIM + ] [Cl – ] (IL) was in situ polymerized and then assembled onto the surface of liquid metal (GLM) nanodroplets to prepare GLM-IL. Subsequently, Ti 3 C 2 T x (MXene) was modified with GLM-IL nanodroplets to obtain GLM-IL/MXene composite, which acts as an efficient photon captor and photothermal converters and can be further composited with PU film (GLM-IL/MXene/PU). Notably, the composite film significantly increases by ∼117°C after exposure to 200 mW/cm 2 light irradiation. This increase is attributed to the high photothermal conversion efficiency of MXene and the excellent plasma effect of GLM-IL. Compared with pure PU, the GLM-IL/MXene/PU film shows a 50% improvement in tensile strength and above 85.8% healing efficiency with a local temperature increase. Additionally, the as-prepared GLM-IL/MXene/PU film reveals satisfactory antifouling properties, achieving a 99.7% reduction in bacterial presence and an 80.3% reduction in microalgae. This work introduces a novel coating with antifouling and self-healing properties, offering a wide range of applications in the fields of marine antifouling and biomedicine.
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高影响因子
Materials Today Physics
·
2024
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IF 10
Mohamedazeem M. Mohideen,Abdul Qadir,Balachandran Subramanian,Seeram Ramakrishna,Yong Liu
The quest for non-precious electrocatalysts through biomass for energy applications has attracted keen interest, but optimization for fuel cells remains challenging. Herein, we have developed a nitrogen and sulfur-anchored MXene hybrid chitosan-derived carbon sphere (N,S-MXC) reporting for the first time as a novel oxygen reduction reaction (ORR) electrocatalyst. Interestingly, as the mass ratio of MXene to Chitosan varied by (1:2, 1:1, and 2:1), the microstructures of the as-prepared catalysts changed, which drastically influenced the corresponding ORR performance. Notably, when the mass ratio was maintained to be 1:2, Ti 3 C 2 nanoparticles were dispersed on the surface of the biomass carbon core shell. They created multimodal porous morphology that helps to facilitate faster electron transfer, resulting in a high onset-potential of 0.89 V and limiting current density of −4.2 mA/cm 2 as well as excellent durability with minimum half-wave potential loss of 2.3 mV after 5000 cyclic voltammetry (CV) cycles than benchmark Pt/C. In addition, the corresponding catalyst also possessed robust stability of 87.47 % and an excellent methanal poisoning tolerance effect in an alkaline medium. In a nutshell, this work paves the pathway for converting sea animal waste to develop porous carbon as supporting material for fuel cells that directly or indirectly support achieving carbon neutrality.
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危险品化学品经营许可证（带存储）