APPLIED SURFACE SCIENCE
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2026
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IF 6.9
Shilin Liu,Gaiqing Zhao,Junming Liu,Zhihuan Wang,Qianqian Zhu,Xiaobo Wang,Zhuang Xu
Modern mechanical transmission components face the multiple challenges of friction, wear, and electrical corrosion. To address these issues, the development of multifunctional additives that integrate superior tribological performance with high electrical conductivity has emerged as a critical strategy. In this study, CuS@MXene nanohybrids possessing both excellent tribological and conductive characteristics were designed and synthesized as multifunctional additives for supramolecular gels. The in-situ uniform loading of CuS nanoparticles onto the Mo 2 C MXene surface was achieved via molten salt etching and electrostatic adsorption strategies. Its tribological performance and lubrication mechanisms as a lubricant additives in supramolecular gels were investigated using a reciprocating friction and wear tester, X-ray photoelectron spectroscopy, and Focused Ion Beam-Transmission Electron Microscopy. Tribological evaluations revealed that, compared to the pure gel, the gel containing 2.0 wt% CuS@MXene reduced the average coefficient of friction by 56.1% and the wear volume by 83.9%, while enhancing the load-carrying capacity by two times. The lubrication mechanism of CuS@MXene is attributed to the formation of a “hard-soft” synergistic composite tribofilm at the sliding interface; this film leverages the complementary advantages of its components to deliver exceptional lubrication performance. Furthermore, the nanohybrids significantly enhanced the electrical conductivity of the gel, thereby reducing the electrical resistance of the tribofilm. This work provides a novel strategy for developing multifunctional additives with robust lubricating and conductive capabilities to mitigate friction and electrical corrosion in mechanical components.
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 13.2
Tao Jiang,Tingkai Zhao,Abdul Jalil,Xianghong Li,Muyang Ma
The promise of MXenes for high-performance electromagnetic wave (EMW) absorption, driven by their excellent in-plane conductivity, is fundamentally hampered by inefficient interlayer charge transport in multilayer assemblies. To address this, a pillared amorphous carbon nanotube (ACNT)/MXene (PAM) nanohybrid is engineered, wherein ACNTs are grown in situ between MXene interlayers using a modified floating-catalyst chemical vapor deposition (CVD). In this design, the ACNTs are treated not merely as structural pillars, but as critical functional components tailored to fulfill three synergistic roles essential for superior EMW absorption: establishing efficient through-plane conductive pathways, introducing abundant defect-induced polarization centers, and ensuring favorable impedance matching. The resulting PAM nanohybrid achieves a minimum reflection loss of −58.87 dB at 14.48 GHz and a broad effective absorption bandwidth of 4.88 GHz with a thickness of 1.2 mm. Density functional theory (DFT) calculations offer further insight, revealing that the pillared architecture plays a central role in suppressing dielectric anisotropy. This suppression is identified as a critical mechanism for maximizing energy dissipation, which has not been fully exploited in previous studies. Beyond presenting a high-performance material, this work offers a versatile design strategy to mitigate the dimensional limitations of 2D materials, paving the way for advanced functional composites in stealth, sensing, and energy applications.
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CHINESE JOURNAL OF CHEMICAL ENGINEERING
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2021
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IF 3.171
Guozhen Liu,Yanan Guo,Baochun Meng,Zhenggang Wang,Gongping Liu,Wanqin Jin
Two-dimensional material membranes with fast transport channels and versatile chemical functionality are promising for molecular separation. Herein, for the first time, we reported design and engineering of two-dimensional Ti 3 C 2 T x MXene (called transition metal carbides and nitrides) membranes supported on asymmetric polymeric hollow fiber substrate for water desalination. The membrane morphology, physicochemical properties and ions exclusion performance were systematically investigated. The results demonstrated that surface hydrophilicity and electrostatic repulsion and size sieving effect of interlayer channels synergistically endowed the MXene hollow fiber membrane with fast water permeation and efficient rejection of divalent ions during nanofiltration process.
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CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Jinfeng Yan,Yanan Ma,Gang Jia,Sairao Zhao,Yang Yue,Feng Cheng,Chuankun Zhang,Minglei Cao,Yongchen Xiong,Peizhi Shen,Yihua Gao
An ultrasensitive bionic MXene based piezoresistive pressure sensor was rationally designed and realized by molding the microstructure of the ginkgo leaf. Specifically, the core deformation part of the sensor under the applied force has been fabricated by imprinting the array-like microscopic shapes of the ginkgo leaves. The MXene-based pressure sensor was prepared by spraying the MXene onto the polydimethylsiloxane (PDMS) model film with the ginkgo leaf structure. To further enhance the sensitivity, a layer of polyvinyl alcohol (PVA) fiber fabricated by the electrospinning method was weaved between the MXene-based element and the electrodes in the sensor. Then, the obtained pressure sensor demonstrated ultrahigh sensitivity of 403.46 kPa −1 , short response time of 99.3 ms and extraordinary durability with 12,000 loading–unloading cycles. Furthermore, the microstructure change of the sensor under applied pressure was observed through the in-situ scanning electron microscope (SEM) experiment. Meanwhile, the pressure sensor also displays great potential applications ranging from the physiological signal test to the human–computer interaction field.
研究领域:
材料科学
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纳米技术
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柔性电子学
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传感器与执行器
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生物医学工程
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Journal of Energy Storage
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2026
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IF 9.8
Hui Li,Jinyi Liu,Jiaming Liu,Wenke Lu,Lan Yang,Zihui Feng,Yue Liu
The increasing demand for fast, efficient, and durable energy storage systems highlights the need for electrode materials that can simultaneously deliver high energy and power densities. Here, we report a NiMo 3 S 4 /Ti 3 C 2 T x MXene composite synthesized through a two-step hydrothermal strategy, which couples the high pseudocapacitance of NiMo 3 S 4 with the excellent electrical conductivity and layered structure of Ti 3 C 2 T x MXene. The composite delivers a remarkable specific capacitance of 1443.6 F·g −1 , more than twice that of pristine NiMo 3 S 4 , benefiting from accelerated charge-transfer kinetics and the exposure of abundant electroactive sites. When assembled into an asymmetric supercapacitor, the device operates stably within a 1.5 V window and retains 82.84 % of its capacitance after 10,000 cycles. Furthermore, it achieves a notable high energy density of 46.85 Wh·kg −1 at a power density of 786.16 W·kg −1 . Density functional theory calculations reveal an increased density of electronic states near the Fermi level and a lowered K + diffusion energy barrier, corroborating the improved electrochemical kinetics. This work demonstrates a synergistic hybrid design that narrows the performance gap between batteries and supercapacitors, offering a promising pathway toward high-energy, high-power energy storage technologies.
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Nano-Micro Letters
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2026
·Vol. 18
·期 1
·297
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IF 38.5
Fan Liubing,Gao Fangfang,Xu Liangxu,Xun Xiaochen,Zhao Shuchang,Yang Bing,Bi Han,Zhao Xuan,Liao Qingliang,Zhang Yue
Large Ti 3 C 2 T x MXene (~6.5 μm) was prepared through combined precursor particle sedimentation and mild shear-force-assisted delamination to enhance conductivity and capacitance.
The epidermal electrode with orderly stacking structure was constructed using hydrogen bonding crosslinking and in-situ curing, demonstrating lower interfacial impedance (53 kΩ cm 2 at 10 Hz) and higher signal-to-noise (39 dB) compared to commercial Ag/AgCl gel electrode.
The portable recording system was integrated with the epidermal electrodes, enabling applications in muscular status and healthcare monitoring.
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PubMed
高影响因子
ENERGY & FUELS
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2026
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IF 6
Zhao Zhang,Yueer Ma,Chuanyin Xiong,Yuxia Luo,Shuai Chang,Junjun Liu,Hui Chang
Herein, a series of few layer MXene (Ti3C2Tx, Ti3CNTx, Ti2NTx, Ti2CTx, Cr2CTx, Nb2CTx, and V2CTx) are synthesized via a LiF/HCl etching-exfoliation method and employed as supports for Pt catalysts in fixed-bed methylcyclohexane (MCH) dehydrogenation reactions. The Pt/MXene catalysts exhibit strong support-dependent dehydrogenation activity and stability. Notably, Pt/Ti3C2Tx shows the highest and most stable hydrogen evolution performance over the studied temperature range, while Pt/Nb2CTx deactivates due to carbon deposition at moderate to high temperatures. X-ray photoelectron spectroscopy analysis reveals that MXene supports effectively modulate the Pt0/Pt2+/Pt4+ distribution, indicating unique metal–support electronic interactions. Further analysis using gas chromatography–mass spectrometry identifies olefin intermediates generated in the reaction, showing that interfacial chemical differences among MXene supports influence the reactant adsorption configuration, initial dehydrogenation sites, and intermediate isomerization behavior. Overall, this study elucidates how MXene supports regulate Pt sites and MCH dehydrogenation pathways, providing valuable insights for the design of efficient LOHC catalysts.
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Small Structures
·
2026
·Vol. 7
·期 4
·e70429
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IF 8.9
Xiaoxing Wang,Hai Peng,Hui Xiao,Heng Li,Jiaoao He,Lijuan Chen,Xiaopei Qiu,Kang Wang,Xiaolin Hu,Xinlin Guo,Wenjing Liu,Jingzhi Wu,Pingyun Li,Shunyi Xia,Qiuxuan Xia,Jianzhi Zhou,Yang Luo,Hong Zhang
Abnormal glycemic management in diabetic patients may lead to severe acute consequences such as hypoglycemia and hyperosmolar coma. Although continuous glucose monitoring (CGM) allows timely detection of dysglycemia, conventional electrochemical sensors are often limited by narrow detection ranges and insufficient sensitivity for reliable long-term in vivo use. To overcome these limitations, we developed glucose oxidase (GOx)-functionalized Ti 3 C 2 Tx MXene-Au microneedles (GTA-MNs) for real-time interstitial glucose sensing, achieving nanomolar sensitivity and stable operation for over 10 days. Upon skin insertion and contact with glucose, the Ti 3 C 2 Tx MXene nanocomposite activates a dual electron-transfer pathway. It simultaneously facilitates direct electron transfer through the enzymatic FAD/FADH 2 center of GOx and catalyzes the indirect oxidation of enzymatically generated H 2 O 2 . This synergistic mechanism enables a broad detection range from 10 nM to 50 mM and an ultralow detection limit of 1.444 nM. A support vector regression calibration model was implemented to dynamically align sensor signals with blood glucose levels, thereby compensating for physiological lag. Comprehensive in vitro and in vivo validations confirmed the system's high accuracy, stability, and biocompatibility. Furthermore, we engineered a user-friendly home-diagnostic system that wirelessly pairs the wearable patch with a smartphone, enabling CGM in freely moving subjects to support personalized diabetes management.
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POLYMER COMPOSITES
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2026
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IF 4.9
Qimao Tan,Hongqiang Zhang,Shaolei Chen,Yan Zhang
Heat dissipation is of importance for modern microelectronic devices. However, it is still a great challenge for the composite to achieve eminent thermal, mechanical, electrical insulation, and thermal diffusion performance simultaneously. Negatively charged MXene and positively charged boron nitride nanosheets (BNNSs) self-assembled into sandwich heterostructured MXene-BNNSs (MXene@BNNS) fillers via electrostatic interactions. At a 50:1 BNNS-to-MXene mass ratio, the 2D MXene is well wrapped between the insulated BNNSs. The synergistic effect between the two nanosheets significantly improved the construction efficiency of thermal transport pathways. The in-plane thermal conductivity of 25 wt% MXene@BNNS/epoxy is 0.912 W m −1 K −1 , which is increased by 404% and 98.1% compared to epoxy resins and BNNS/epoxy composites, respectively. Furthermore, the composite also has enhanced thermal stability with a temperature at 5% weight loss ( T d5% ) of 376.1°C and a char yield of 27.87%, good electrical insulation with a volume resistivity of 6.37 × 10 13 Ω cm and dielectric properties (dielectric constant < 4.0), suggesting it is a promising thermal management material. Highlights BNNS and MXene electrostatically self-assemble into a sandwich heterostructure. The MXene@BNNS/epoxy has better heat dissipation than BNNS/epoxy. The composites possess outstanding electrical insulation and dielectric properties. The thermal property of the composite is enhanced by MXene@BNNS.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Haobo Mao,Qingyu Chen,Xiaoyan Ruan,Ziling Pang,Xiangying Meng,Yiqi Liu,Hanyi Huang,Kejia Chen,Jiayin Liu,Yu Yu,Songmei Wu,Lixin Yang
Cysteine intercalation regulates MXene interlayers via adsorption and H-bonding. • Dual-mode Joule and photothermal heating enables efficient de-icing. • De-icing time and energy consumption reduced by about 50% with rapid response. • Uniform heating and scalability demonstrated on large-area simulated airfoils. MXene thin films exhibit high electrical conductivity and strong photothermal response, making them attractive for advanced de-icing applications. However, the intersheet aggregation of pristine MXene, governed primarily by weak hydrogen bonding and van der Waals interactions, undermines structural stability and limits performance in harsh icing environments. Here, we propose a molecular engineering strategy using cysteine (Cys), a small organic molecule with amino, carboxyl, and thiol functional groups, to regulate the interlayer structure of MXene films. The abundant electron-donating groups in Cys strongly anchor onto Ti sites on MXene, creating inserted molecular layers with hydrogen-bonding network with the interlayer spacing tuned from 13.33 Å to 13.93 Å. Under a driving voltage of 2.4 V, the 10 mM Cys-doped MXene@Cys film achieved a steady-state temperature of 136.9 °C with an electrothermal efficiency of 220.0 °C·cm 2 /W. Compared with the pristine MXene film, the 10 mM Cys-doped film exhibited a de-icing time of only 4.7 s (a reduction of 56.3%) and energy consumption of 5.14 J/cm 2 (56.1% reduction). Furthermore, under 1 sun irradiation, the temperature of the 20 mM Cys-doped film was enhanced by 92.4% relative to the pristine MXene film. This work demonstrates an organic-molecule-doping approach for interlayer engineering in MXene films and offers a promising materials platform for high-performance active anti−/de-icing technologies. Download: Download high-res image (370KB) Download: Download full-size image
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JOURNAL OF ALLOYS AND COMPOUNDS
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2026
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IF 6.7
Zhenyang Xiao,Zhijie Liu,Haobo Tian,Chang Wang,Xiang Lei,Simiao He,Bo Peng,Longjiang Deng
Microwave transmission-infrared stealth compatible materials are critical for radomes and strategic vehicles, but existing solutions fail to balance performance well. MXene shows promise for dual-band applications, yet its continuous films suffer from high radar reflectivity and low transmittance. Herein, MXene-patterned flexible frequency selective surface (FSS) structures were fabricated via screen printing, with systematic control of the parameters of arrays to tailor electromagnetic properties, enabled by tailoring the equivalent inductor-capacitor circuit of the FSS to achieve impedance matching in the radar band. As gap width of arrays increases from 120 to 360 μm, radar transmittance reaches 78% (over 10⁴ higher than that of continuous MXene films) and the reflectivity is significantly reduced from 90% to 16%, while maintaining approximately 80% infrared reflectivity (8∼14 μm, corresponding to an emissivity of 0.2) is retained. This achieves efficient radar-infrared dual-band compatibility, with radar transmittance differing by only approximately 1.01 dB from that of MXene-free structures. The low-cost method provides a feasible pathway for high-performance regulation of dual-band devices, advancing multispectral functional materials and meeting demands in aerospace, stealth protection, and next-gen communications.
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ACS Applied Nano Materials
·
2026
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IF 5.8
Yongyue Liang,Min Ling,Changbing Zhou,Ying Yuan,Yingying He,Yunhua Chen,Hongxia Liu
Flexible electromagnetic shielding composite hydrogels can prevent electromagnetic radiation, but achieving low reflectivity and high shielding effectiveness simultaneously remains challenging. Herein, an absorption-dominated electromagnetic interference (EMI) shielding composite hydrogel featuring a vertically graded distribution of nickel nanowires (Ni NWs) was developed under an external magnetic field. To synergistically enhance the EMI shielding performance, MXene nanosheets were distributed throughout the system, while silver nanowires (Ag NWs) were spin-coated onto the bottom surface (i.e., the side densely populated with Ni NWs). Consequently, the resultant composite hydrogel exhibited a higher EMI shielding effectiveness of 58.2 dB when electromagnetic waves were incident from the bottom than when they were incident from the top (50.9 dB). Moreover, the composite hydrogel possessed excellent pressure sensitivity of 26.6 kPa–1, coupled with an ultrarapid response time of 0.1 s, enabling rapid and accurate detection of human motion, as well as nearly 0% ultraviolet (UV) transmittance at both 365 and 550 nm, thereby realizing effective protection against ultraviolet radiation. This work provides a strategy for developing multifunctional electromagnetic shielding materials, advancing both material design theory and the fabrication of next-generation shielding materials.
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