Polymers
·
2025
·Vol. 17
·期 19
·2683
·
IF 4.9
Ruirui Li,Sijia Chang,Jiaheng Bi,Haotian Guo,Jianya Yi,Chengqun Chu
Conductive hydrogels (CHs) have attracted significant attention in the fields of flexible electronics, human–machine interaction, and electronic skin (e-skin) due to their self-adhesiveness, environmental stability, and multi-stimuli responsiveness. However, integrating these diverse functionalities into a single conductive hydrogel system remains a challenge. In this study, polyvinyl alcohol (PVA) and polyacrylamide (PAM) were used as the dual-network matrix, lithium chloride and MXene were added, and a simple immersion strategy was adopted to synthesize a multifunctional MXene-based conductive hydrogel in a glycerol/water (1:1) binary solvent system. A subsequent investigation was then conducted on the hydrogel. The prepared PVA/PAM/LiCl/MXene hydrogel exhibits excellent tensile properties (~1700%), high electrical conductivity (1.6 S/m), and good self-healing ability. Furthermore, it possesses multimodal sensing performance, including humidity sensitivity (sensitivity of −1.09/% RH), temperature responsiveness (heating sensitivity of 2.2 and cooling sensitivity of 1.5), and fast pressure response/recovery times (220 ms/230 ms). In addition, the hydrogel has successfully achieved real-time monitoring of human joint movements (elbow and knee bending) and physiological signals (pulse, breathing), as well as enabled monitoring of spatial pressure distribution via a 3 × 3 sensor array. The performance and versatility of this hydrogel make it a promising candidate for next-generation flexible sensors, which can be applied in the fields of human health monitoring, electronic skin, and human–machine interaction.
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DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Dandan Li,Jiepeng Zhao,Sai Huang,Zijian Li,Zhuo Cai,Zhaomin Tong,Liantuan Xiao,Suotang Jia,Xuyuan Chen,Yifei Ma,Mei Wang
Conductive MXene-based fibers hold great promise in the field of flexible wearable electromagnetic interference (EMI) shielding, but their poor spinnability, disordered layer stacking, and weak interfacial interactions severely limit their performance. To overcome these challenges, we develop a synergistic material-structure strategy to fabricate coaxial chitosan@MXene/graphene oxide (GO) composite fibers with chitosan (CS) as the outer shell. The introduction of GO significantly improves the dispersibility and interfacial compatibility of MXene, thereby resolving its inherent poor spinnability. The outer CS layer not only serves as a mechanical support layer but also forms an antioxidant protective shell, effectively inhibiting the degradation of MXene in aqueous and oxygenated environments. Furthermore, we propose a facile post-processing immersion-drying strategy, the immersion process induces slip and rearrangement of MXene and GO layers. Subsequent drying and shrinkage processes further compact the layers, thereby “locking” a tightly ordered conductive structure to yield CS@Mx-G-1 fibers. In this strategy, the fiber conductivity increases from 6.56 × 10 3 S/m to 1.55 × 10 4 S/m, while the electromagnetic interference shielding effectiveness enhances from 30 dB to 45 dB. The fibers maintain stable conductivity and flexibility after two immersion cycles. This approach provides a novel strategy for constructing high-performance flexible EMI shielding fibers.
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Chen Jin,Zhenke Chen,Hang Che,Shuzhong Wang,Zhiheng Liu,Tao Chen,Li Wang,Yuyuan Zhao,Xinhua Wang,Haoyuan Zheng,Haizhen Liu,Mi Yan
Sodium alanate has a reversible hydrogen storage capacity of 5.6 wt% at relatively mild conditions, but it is limited in practical use because of low reaction rates and the phase separation of the reaction product. In this study, to enhance the hydrogen storage ability of sodium alanate, a one-step hydrogen pressure ball milling process was used to introduce the MXene-based carbonitride, Ti 3 CN, and its catalytic modification ability was compared to that of Ti 3 C 2 on sodium alanate. The onset and peak hydrogen desorption temperatures of NaAlH 4 decreased significantly from 176.9 /203.3 °C to 76.8/129.3 °C, and the activation energies for the two-step dehydrogenation process were reduced from 118/159 kJ/mol (pure NaAlH 4 ) to 42/72 kJ/mol. In an isothermal condition at 100 °C, the composite material desorbed 3.30 wt% hydrogen within one hour, and the capacity retention rate kept as high as 93.7% after ten cycles of hydrogen absorption and desorption. It can be obtained that Ti 3 CN maintained its layered structure during the process of ball milling, and there possessed multiple active sites, such as Ti 3 CN, Ti 0 and TiAl. Moreover, TiAl nanointermetallic phases were found to be in situ generated during the cycling process. TiAl displayed a reversible “hydrogen pump” property, acting as nucleation sites to promote the adsorption and desorption of hydrogen. At the same time, the MXene lattice promoted the dispersion of aluminum and the prevention of phase separation. The support stability provided by Ti 3 CN and the coupled catalytic ability of TiAl and Ti 0 phases significantly improved the hydrogen desorption rate and cycling performance of NaAlH 4 at low temperature. These results are valuable to the construction of an efficient solid hydrogen storage system.
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高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2026
·
IF 19
Amr Osman,Youneng Xie,Chaochao Sun,Jian Lu
The advancement of wireless technology and miniaturized electronic devices demands customized, high-performance electromagnetic interference (EMI) shielding materials with stability under harsh conditions. Although MXene provides excellent electrical and EMI shielding properties, achieving robust stability in MXene aerogels remains challenging. Herein, an annealing-enabled 3D printing process is developed to fabricate hierarchical MXene/carbon aerogels that maintain excellent shielding stability under extreme conditions, including long-term storage, intensive sonication, cryogenic temperatures (−196°C), high temperatures (200°C), cryogenic cycling (from −196°C to 20°C), and rapid thermal shock (∆T = 396°C). The aerogel achieves a superior EMI shielding efficiency of up to 111.1 dB, surpassing recently reported materials, and maintains high performance of 100.14 dB across the 4–18 GHz frequency range. Furthermore, flexible and sensitive pressure sensors are fabricated, demonstrating potential for motion detection and smart interfaces. The presented approach positions MXene/carbon aerogels as potential candidates for stable device shielding and sensing applications.
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高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2026
·
IF 5.4
Fangxin Wan,Luyao Ding,Wei Chen,Kejie Chen,Tianyi Hang,Yiming Chen,Shaohua Jiang,Qing Ouyang,Shiju E,Jiajia Zheng
The advancement of modern science and technology has significantly facilitated daily life and societal operations, yet simultaneously contributes to increasing electromagnetic pollution. Cellulose aerogels have shown broad application prospects for electromagnetic wave absorption (EMWA) due to their low density, high porosity, and adjustable structure. In this work, we first obtained fragmented MXene by ultrasonic treatment of flake MXene, and combined it with carboxymethyl cellulose (CMC) to prepare a functional cellulose-based composite aerogel absorber via a straightforward freeze-drying technology. Thanks to the rich surface functional groups of MXene fragments, they could be efficiently attached to the surface of the aerogel skeleton, thus giving the composite aerogel excellent EMWA performance. At an ultrathin matching thickness of 1.52 mm, the absorber achieved highly efficient microwave attenuation with minimum reflection loss of −49.3 dB and effective absorption bandwidth of 4.89 GHz. In addition, the unique porous structure of the composite aerogel endowed it with exceptional thermal insulation and sound absorption capabilities. This work presents a simple and sustainable strategy to develop multifunctional cellulose composite materials for a variety of application scenarios.
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高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2026
·
IF 4.6
Xinzhu Wang,Jingjing Zhao,Jingyi Peng,Weiming Tian,Xiaojun Han
The detection of toxic heavy metal ions (e.g., Cd 2+ , Pb 2+ ) in water is essential for public health and environmental monitoring. Herein, we describe the fabrication of a V₂CTₓ MXene-based electrochemical sensor on a glassy carbon electrode (GCE) for the highly sensitive detection of Cd 2+ and Pb 2+ in water. V 2 CT x was synthesized by selective etching and characterized by scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS) for its morphology and composition. The results revealed that the V 2 CT x possesses a typical two-dimensional layered structure with abundant surface functional groups, thus providing active sites conducive to the adsorption and electron transfer of heavy metal ions. Cyclic voltammetry (CV) demonstrated a significant enhancement in electrochemical activity upon V₂CTₓ modification. Using the optimized conditions (V 2 CT x concentration of 1 mg/mL, pH 4.0, deposition voltage of −1.3 V, deposition time of 6 min), the detection of Cd 2+ and Pb 2+ were performed by square wave anodic stripping voltammetry (SWASV). The limits of detection for Cd 2+ and Pb 2+ were 2.28 μg/L and 2.40 μg/L, respectively, which to meet national drinking water standards. The V₂CTₓ/GCE showed good repeatability, reproducibility, anti-interference ability. The V 2 CT x /GCE holds great potential in the detection of heavy metal ions in real water samples.
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DOI
高影响因子
Journal of the Taiwan Institute of Chemical Engineers
·
2026
·
IF 6.3
Zhenying Li,Yanze Yang,Xu Chen,Yulu Hu,Xia Sun,Jiliang Xie,Tao Yang
Background:As a typical refractory cationic dyes, Rhodamine B (RhB), poses a significant challenge in aquatic environment. Methods:To address this issue, this study fabricated a novel TBO-PSPH/MXene composite membrane by covalently grafting the silane-based N-halamine poly[5,5-dimethyl-3-(3’-triethoxysilylpropyl)hydantoin](PSPH) onto the surface of MXene, followed by the intercalation of the polycyclic dye Toluidine Blue O (TBO) into MXene interlayers. The composite membrane was characterized by XRD, XPS, FT-IR, N 2 adsorption /desorption, AFM and FESEM. Signifiicant Findings:The results demonstrated that the intercalation of TBO significantly enhanced structural stability of the membrane as well as the incorporation of PSPH reduced the surface negative charges and improved hydrophilicity of the membrane. Separation experiments with a 15 mg/L RhB solution at pH 1 and room temperature (RT) demonstrated a high rejection of 97.3% and a water flux of 4.63 L/(m²·h·bar). Notably, the incorporation of 10% NaCl significantly enhanced membrane performance, elevating RhB rejection to 98.9% while increasing water flux to 6.29 L/(m²·h·bar). The separation mechanism is attributed to synergistic effects of electrostatic repulsion, size-sieving, steric hindrance, and adsorption. This work provides a promising strategy for developing high-performance MXene membranes for treating challenging dye wastewater under various conditions.
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高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2026
·
IF 5.4
Hecheng Yao,Shuyi Li,Chaohuan Yang,Chenchen Liao,Yuchan Li,Zhimin Guo,Guoyong Wang,Yan Liu
With the growing emphasis on personalized health management, point-of-care testing has garnered significant interest, creating a pressing demand for biosensors that are both highly sensitive and user-friendly. Herein, we develop a dual-function sensor on a Janus fabric for monitoring sweat glucose and lactate. The Janus material provides the critical function of unidirectional sweat transport for efficient collection while also being endowed with antibacterial properties and breathability to ensure user comfort during extended wear. The electrochemical electrode was fabricated via a sequential process of screen-printing, electropolymerization of Prussian blue, and modification with MXene and specific enzymes. The incorporation of MXene significantly reduces the electrical impedance of the electrode, thereby enhancing its electrochemical performance. The sensor offers broad detection ranges (0–500 μM for glucose and 0–25 mM for lactate) with low detection limits (0.6 μM and 0.145 mM, respectively). Furthermore, the detection sensors exhibit outstanding long-term stability, excellent reproducibility, and strong anti-interference capability. Moreover, the integrated sensor successfully monitored changes in glucose and lactate concentrations in human sweat, demonstrating significant potential for applications in health management and exercise monitoring.
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高影响因子
CERAMICS INTERNATIONAL
·
2023
·Vol. 50
·期 1
·2459-2466
·
IF 5.2
Xin Liu,Hanmei Zhang,Tao Shen,Jianbo Sun
SnO 2 nanoparticles@Ti 3 C 2 T x MXene have been successfully synthesized by a flexible solvothermal method. The Ti 3 C 2 T x MXene was evenly anchored by the SnO 2 nanoparticles (∼5 nm) through the controllable assembly heterojunction . Ti 3 C 2 T x MXene contributed to the improvement of material conductivity compared to SnO 2 nanoparticles. The combination of SnO 2 @Ti 3 C 2 T x exhibits excellent sensitivity and selectivity to NO 2 at room temperature (RT). Compared with pure Ti 3 C 2 T x MXene, the sensitivity of TCS1.5 nanocomposite increases more than 20 times to 300 ppm NO 2 at RT. In order to explore the sensing mechanism of SnO 2 @Ti 3 C 2 T x nanocomposite to NO 2 , nitrogen adsorption-desorption isotherm technology and DFT calculations were performed. They demonstrated that the high specific surface area, well-proportioned heterogeneous structure of SnO 2 @Ti 3 C 2 T x MXene, and the vital ionic bonds of Sn–N and O–N formed between substrate and NO 2 gas had beneficial effect on improving the gas response capability.
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高影响因子
Energetic Materials Frontiers
·
2022
·Vol. 3
·期 4
·199-208
·
IF 0
Bo Yang,Peng-fei Tang,Rui Li,Xiao-dong Li,Guang-cheng Yang
Reactive combustion catalysts (RCCs) are emerging materials for the combustion control of ammonium perchlorate (AP)-based propellants owing to their unique ability to control burning rates, high atomic utilization, and high-energy output. This paper reported that the combustion of AP-based propellants can be greatly enhanced by applying vanadium carbide (V 2 C) MXene as RCCs because of its combined advantages of unique reactivity and high chemical energy storage. The decomposition of AP in the presence of V 2 C MXene involves both direct reaction decomposition and catalytic decomposition. V 2 C MXene preferentially reacts with AP as fuel, releasing its chemical energy in the form of heat and forming VO x /C nanosheets. The VO x /C nanosheets formed in situ can serve as catalysts to promote thermal decomposition of the remaining AP. Unlike other combustion catalysts, the direct redox reaction between V 2 C MXene and AP dominates the decomposition of AP. Compared with other RCCs that mainly work through catalytic decomposition, V 2 C MXene exhibits a greatly increased burning rate, a shorter to-steady-state-combustion time, and greater energy release.
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DOI
JOURNAL OF ALLOYS AND COMPOUNDS
·
2021
·
IF 5.316
Hao Li,Zeping Li,Sisi Liu,Min Li,Xiaoyan Wen,Jihoon Lee,Shusen Lin,Ming-Yu Li,Haifei Lu
All-inorganic CsPbBr 3 perovskite quantum dots (QDs) are considered as a new generation of photoelectric material for the implementations in photodetection owing to their remarkable optoelectronic properties and optimized stability. However, the combination of the abundant trap states and unfavorable carrier transportation poses a critical hurdle for the fabrication of high- performance photodetectors. In this study, a facile strategy to significantly enhance the performance of CsPbBr 3 QD photodetectors via evenly blending 2D Ti 3 C 2 T X nanosheets is systematically demonstrated. The uniformly distributed Ti 3 C 2 T X nanosheets successfully confine incident fugacious photons throughout CsPbBr 3 QD thin films as a result of the spontaneously intensified surface electromagnetic fields, and the transportation of photogenerated carriers from CsPbBr 3 QDs are simultaneously accelerated due to the high conductivity and well-matched work function of the nanosheets. Meanwhile, the hot electrons excited from the nanosheets can also partially contribute to the increase in photocurrent, and thereby the performance of the device sensitively develops as a function of the concentration of the nanosheets. Correspondingly, a 300% enhancement is equally observed with external quantum efficiency and responsivity of the CsPbBr 3 QD/MXene nanosheet photodetectors in comparison with the pristine one under 490 nm light illumination for a long period of 4 months in the atmospheric environment.
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高影响因子
CHINESE JOURNAL OF CHEMICAL ENGINEERING
·
2018
·Vol. 27
·期 4
·877-883
·
IF 1.712
Runlin Han,Yongli Xie,Xufeng Ma
MXene is a novel 2D lamellar material with excellent hydrophilicity and permselectivity . MXene was introduced in the P84 polymer matrix and the matrix was crosslinked with triethylenetetramine (TETA) to improve the permselectivity and solvent resistance of the polyimide membrane. The membrane was characterized with SEM, AFM and ATR-FTIR, and effects of MXene content on the membrane morphology and separation performance are investigated. The membrane prepared with 18% P84 and 1% MXene shows high rejection (100%) to gentian violet (408) and high flux (268 L·m −2 ·h −1 ) at 0.1 MPa and ambient temperature. MXene endows the membrane with much water channel and denser functional layer which improves the membrane performance obviously. The membrane shows excellent solvent resistance to dimethylformamide (DMF), acetone and methanol after crosslinking with TETA during the 18 days of immersion.
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高影响因子
危险品化学品经营许可证（带存储）