CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Yongqian Shi,Xiaoyong You,Haoxin Niu,Can Liao,Longcheng Tang,Jiefeng Gao,Pingan Song,Wei Zhang,Ting Qiu
In view of the prominent issues in compatibility, sustainability, and performance stability of existing polymer-based electromagnetic interference (EMI) shielding films, this work proposes a strategy for preparation of a series of novel flame retardant and EMI shielding composite films, which were fabricated using cellulose nanofibers (CNF)/MXene/chitosan-modified hollow glass microspheres (HGM@CS) as the matrix, and flame-retardant thermoplastic polyurethane (TPU/APP-NH 2 @LDH) as the encapsulation shell. The results demonstrated that the CNF/MXene/HGM@CS/TPU/APP-NH 2 @LDH (CM x HTA) composite films exhibited good hydrophobicity (with a water contact angle of 100.6°), and superior flame retardancy. The peak heat release rate and total heat release of as-prepared CM 2 HTA composite film were decreased by 53.0% and 52.2%, respectively, compared with those of pure CNF/TPU composite film. The improvement in flame-retardant performance is attributed to the synergistic mechanism of APP-NH 2 @LDH, HGM@CS, and MXene in both the gas phase and the condensed phase. Due to the electromagnetic shielding mechanism of “surface reflection-internal absorption”, the values of EMI shielding effectiveness of the CM 3 HTA composite film reached 43.5 dB and 56.7 dB in the X-band and K-band, respectively, far exceeding the requirements for commercial shielding materials (≥20 dB). This study provides a new approach for developing high-performance, multifunctional, and environmentally friendly electromagnetic shielding composites in the application of electronic protection, smart packaging and wearable devices, etc.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
·
2026
·
IF 16.8
Hui Li,Faming Zhang,Xiang Liu,Wei Zheng,Guobing Ying
High-entropy MAX (HE-MAX) phases and their derivative MXenes (HE-MXenes) have attracted widespread attention due to multicomponent modulation effects. Herein, a (TiZrNbTa) 2 AlC HE-MAX phase with high purity of 96.18 wt.% was synthesized. The ceramic exhibits a low lattice thermal conductivity of 4.56 W/(m K) because of strong phonon scattering at the M-site. Superior mechanical performances were achieved, including Vickers hardness of 7.2 GPa, flexural strength of 494 MPa, compressive strength of 1643 MPa, and fracture toughness of 6.8 MPa m 1/2 . The strength enhancement is attributed to local chemical fluctuations and wavy-distributed lattice strain fields that create rugged energy landscapes and impede dislocation motion. Whereas the nearly cubic stacking of [M 6 X] octahedron promotes homogeneous deformation and achieves a comparable fracture toughness to Ti 2 AlC. The derived HE-MXene maintains hexagonal symmetry with enlarged interlayer spacing and mixed M-site valence states. Density functional theory calculations reveal a Young’s modulus of 252 GPa and metallic character with Nb serving as the dominant redox‑active center. This work offers a generalizable strategy for strengthening MAX phases via a high-entropy design, highlighting their potential for lightweight structural applications.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Guifang He,Xiang Liu,Junbao Yan,Mingwei Tian,Xiansheng Zhang,Lijun Qu,Fanggang Ning
To address the challenges of personal thermoregulation, this study proposes a multi-modal thermal management strategy based on a three-dimensional (3D) spacer Janus fabric (F-M/A-JF) asymmetrically decorated with MXene and silver. By leveraging the 3D structure's static air-trapping and MXene's low mid-infrared emissivity (0.419), the system achieves a 5.6 °C increase in simulated skin temperature indoors without energy consumption. Under simulated sunlight (100 mW cm −2 ), the Janus design exhibits a differential response—reaching 79.8 °C on the MXene side versus 62.9 °C on the Ag side—providing an “adaptive mode” to prevent outdoor overheating. Owing to the high electrical conductivity of MXene, the fabric achieves a surface temperature of 137.3 °C at a low voltage of only 5 V and demonstrates a high electromagnetic interference (EMI) shielding effectiveness of up to 57 dB. The “MXene Guardian” strategy ensures functional longevity over 20 washing cycles and 95.3% self-cleaning efficiency while preserving 93.8% of the original moisture permeability (5.14 mg cm −2 h −1 ). This robust system offers an energy-saving design paradigm for next-generation smart textiles in dynamic environments.
✓ 已验证
产品关联
DOI
高影响因子
Materials
·
2026
·Vol. 19
·期 11
·2195
·
IF 3.7
Yizhou Luo,Jingyu Wang,Xing Luo,Hengpei Su,Zelin Zhao,Wanxia Huang
To improve the durability of terahertz (THz) electromagnetic shielding materials in atomic oxygen environments relevant to low Earth orbit (LEO), two MXene/para-aramid nanofiber (ANF) composite architectures were designed, including a uniformly blended structure and a sandwich configuration. Ti 3 C 2 T x MXene was used as the conductive phase, while ANF served as a protective matrix. Oxygen plasma treatment was employed to simulate atomic oxygen exposure. The results show that the plasma resistance of blended films strongly depends on MXene content. Increasing the MXene fraction enhances conductive network redundancy and reduces conductivity degradation. In contrast, the sandwich-structured film exhibits superior structural stability. The outer ANF layers effectively limit direct plasma–MXene interaction and undergo surface carbonization during plasma exposure, forming an additional diffusion barrier. As a result, the sandwich film maintains stable THz shielding performance, with the average shielding effectiveness increasing from 42.6 dB to 44.9 dB after plasma treatment. These results indicate that structural regulation of the internal conductive network, which limits plasma penetration, is essential for maintaining stable MXene-based THz shielding performance under oxidative plasma conditions.
✓ 已验证
DOI
PubMed
高影响因子
MICROCHEMICAL JOURNAL
·
2026
·
IF 5.2
Guoqiang Tang,Yuanxing Liu,Wei Lai,Mengdi Guo
AgNP/MXene arrays enabled a compact biomimetic SERS e-nose. • Chemically distinct MXenes generated cross-reactive VOC responses. • MXene adsorption and AgNP enhancement produced VOC fingerprints. • Four similar VOCs were classified with 100% accuracy by PCA/HCA. • Three sensing channels achieved efficient VOC discrimination. The discrimination of structurally similar volatile organic compounds (VOCs) remains a significant challenge due to the limited selectivity of existing sensing materials. To address this, we present a methodologically novel, novel bio-inspired electronic nose platform based on a surface-enhanced Raman scattering (SERS) sensor array of silver nanoparticles/MXene (AgNP/MXene) composites for intelligent VOC identification. The proposed approach combines a rationally designed, chemically orthogonal MXene library (Ti 3 C 2 , V 2 C, and a high-entropy MXene, TiVCrMoC 3 ) with an optimized multivariate analysis workflow, thereby establishing a generalizable methodology for constructing cross-reactive SERS sensing systems. The MXene components serve as superior adsorbents to preconcentrate VOC molecules, while the in-situ grown AgNPs provide strong plasmonic enhancement, translating adsorption events into distinct molecular “fingerprint” spectra. The cross-reactive responses of the array to four similar VOCs (dipentene, ethyl lactate, isopropyl acetate, and propylene glycol monomethyl ether). The generated multidimensional SERS data is effectively decoded using pattern recognition algorithms, namely hierarchical cluster analysis (HCA) and principal component analysis (PCA), which provided a reliable proof-of-concept for the identification of VOC gases. This work thus introduces a new materials–data co-design strategy for biomimetic SERS e-nose development, enabling reliable discrimination of structurally similar VOCs in complex environments. Download: Download high-res image (154KB) Download: Download full-size image
✓ 已验证
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 5
·123509
·
IF 7.5
Yihong Xu,Yingcai Wang,Yinshan Zhang,Gang Xiong,Zhibin Zhang,Yunhai Liu
Nuclear energy expansion drives increasing uranium demand, yet acidic in-situ leaching generates toxic, radioactive wastewater that poses severe ecological and health risks. Conventional treatment methods face efficiency, cost, and operational constraints, necessitating high-performance adsorbents. Here, we report a phosphate-functionalized MXene composite hydrogel (P(AM-VPA)/MXene) synthesized via in-situ polymerization for uranium capture. The material demonstrates exceptional mechanical stability, efficient photothermal conversion, a Langmuir-estimated maximum monolayer adsorption capacity of 1376.75 mg·g −1 at pH 6, high selectivity for uranium over competing metal ions, and 89.8% capacity retention after six adsorption-desorption cycles. Under visible light irradiation, adsorption efficiency increases by 18.4% due to accelerated ion diffusion. MXene reinforcement optimizes the hydrogel’s porous architecture while providing abundant active sites, synergizing with phosphate groups to enable chemisorption-dominated uranium binding. This work provides a phosphate-functionalized MXene-hydrogel design that integrates U(VI)-binding phosphate groups, MXene-induced structural reinforcement, recyclability, and photothermal-assisted adsorption, offering a complementary strategy for uranium-bearing wastewater treatment.
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Shengtao Zhou,Jun Xu,Ao Li,Zhaohui Zhang,Bin Wang,Wei Zhang,Kefu Chen
Non-nanoscale strategy enables high-performance flexible humidity sensing. • Synergistic CMC-MXene coupling amplifies humidity-induced transport response. • Ultrawide-range (11–97% RH) detection with a high response of 89.5%. • Excellent temperature stability, bending durability, and biodegradability. Flexible humidity sensors for wearable health monitoring and environmental sensing require simultaneously high sensitivity, operational stability, and environmental sustainability. However, most high-performance devices still rely on non-degradable polymers or elaborate nanostructured bio-based architectures. Here, we report a biodegradable resistive humidity sensor based on a vacuum-filtrated carboxymethyl cellulose (CMC)/MXene composite membrane. CMC provides abundant hydrophilic-OH and -COOH for efficient moisture adsorption, while MXene forms a percolated conductive network. Humidity-dependent XRD shifts indicate tunable MXene interlayer spacing within the CMC matrix, which modulates intersheet contacts and thus the effective conductive pathways, leading to an amplifies electrical response. The optimized sensor exhibits stable and highly reproducible responses over 11–97% relative humidity (RH), achieving a maximum humidity response value (-ΔI/I₀) of 89.5% at 97% RH, with a response/recovery time of 131/340 s. The device maintains performance underrepeated bending (100 cycles), long-term operation (10 days), and temperature variation. Importantly, the membrane shows rapid disintegration in soil within 30 days, offering a promising route toward high-performance yet sustainable flexible humidity sensing without nanocellulose fibrillation or complex device architectures. Download: Download high-res image (180KB) Download: Download full-size image
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
Hushen Luo,Jie Yang,Jixing Xiong,Yuanna Sun,Jiaojiao Zheng,Wei Fan,Jianhua Ma,Lizhong He
The self-stacking of the MXene material can diminish its interlayer spacing and active surface area, thereby diminishing the sensitivity and response speed of pressure sensors. Here, we introduce a high-performance flexible tactile sensor utilizing a composite of MXene, polystyrene (PS) microspheres, and bacterial cellulose (BC). PS microspheres are integrated within the MXene nanosheet layers to mitigate the self-stacking. By employing an innovative point-to-point conductive network design, the self-aggregation issue of MXene materials is effectively mitigated, leading to the formation of dynamic point-contact structures among PS microspheres. This configuration notably enhances detection sensitivity within the low-pressure range to 568.8 kPa–1 (20–200 Pa). Furthermore, the incorporation of BC enhances the interfacial bonding strength through hydrogen bonding, thereby enhancing sensor stability. The sensor exhibits a rapid response time of 29 ms, a wide detection range of up to 0–50 kPa, a low limit of detection of 2 Pa, and consistent signal stability over 20,000 cycles. It has demonstrated the capability to monitor a broad spectrum of physiological activities, including joint movements, facial microexpressions, and radial pulse. Integration with wireless transmission technology enables remote health monitoring, flexible touch keyboard functionality, and human–computer interaction. Additionally, the electromyography (EMG) skin sensor based on the MXene/PS/BC (MPB) composite film accurately distinguishes muscle movements, gestures, acoustic vibrations, and facial microexpressions by detecting surface EMG signals. This comprehensive approach offers a comprehensive solution for wearable medical devices that combine high sensitivity with practicality.
✓ 已验证
DOI
PubMed
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2026
·
IF 7.9
Xinyan Wang,Jixian Yang,Zhixuan Chen,Yuguo Peng,Yue Zhang,Xuezhi Yu,Jipeng Cao,Junchi Ma
Flexible fabric strain sensors based on MXene hold huge potential for wearable human motion monitoring; however, their practical application is severely hindered by the poor oxidation stability of MXene and weak interfacial adhesion between the conductive coating and elastic fabric substrates. Herein, we developed a bio-inspired dual-enhancement strategy to construct a robust bio-inspired MXene-based adhesive composite coated fabric (BMAC-fabric) for high-performance fitness exercise monitoring. Inspired by the adhesive nature of snail slime and the interlocked micro/nano-structures of tree frog toe pads, a functional copolymer (HE-co-SV) containing hydroxyl and sulfonate groups was selected as an interfacial binder. This HE-co-SV not only formed the ionic hydrogen bonds, electrostatic anchoring, and widespread van der Waals interactions with the fiber to significantly enhance the adhesion strength between MXene nanosheets and the super-elastic fabric skeleton but also provided intrinsic antioxidant protection to the conductive MXene network. Consequently, the as-prepared BMAC-fabric sensor exhibited greatly enhanced sensing performance compared to traditional MXene-coated fabric, including a wider strain sensing range (0–150%), a lower detection limit (2% strain) and fast response/recovery time (120/180 ms). In addition, it achieved remarkable oxidation resistance and mechanical durability, maintaining stable surface resistance after 72 h of UV irradiation and 2000 cyclic stretching. Benefiting from these merits, the BMAC-fabric sensor enabled accurate and real-time monitoring of both joints bending (large deformation) and muscles contraction (subtle deformation) behaviors. This work presents a promising biomimetic approach for developing durable and sensitive fabric-based electronics, paving the way for next-generation personalized fitness training and humanoid robot interaction.
✓ 已验证
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Shengdong Cai,Fangyu Gan,Lichun Cheng,Qingrong Yao,Jiang Wang
Balancing dielectric attenuation and impedance matching is essential for developing efficient MXene-based EMW absorbers because an excessively developed conductive network may deteriorate impedance matching and hinder electromagnetic wave penetration. Herein, Ti 3 C 2 T x MXene/Y 2 O 3 /C composites were prepared through in situ solvothermal assembly followed by pyrolysis. By increasing the Ti 3 C 2 T x MXene feed fraction, the dielectric response and impedance-matching behavior of the composites were systematically regulated. Structural analyses confirmed the formation of crystalline Y 2 O 3 , carbonaceous domains, and MXene-based heterostructures with mesoporous features. The composites exhibited composition-dependent and non-monotonic absorption behavior. MY-3(Nominal MXene-to-precursor feed ratios of 2:5) composite delivered the strongest absorption intensity with a minimum RL of −49.4 dB, while MY-4(Nominal MXene-to-precursor feed ratios of 1:2) composite achieved the broadest EAB of 7.2 GHz. The enhanced absorption performance is attributed to the regulated conductive network, interfacial polarization at MXene/Y 2 O 3 /C heterointerfaces, dipole polarization from polar bonds and oxygen-containing groups, and improved impedance matching. Radar cross-section simulations further verified the scattering suppression capability of the optimized coatings. This work demonstrates that Y 2 O 3 /C-assisted dielectric regulation is an effective strategy for improving broadband absorption in MXene-based dielectric absorbing materials.
✓ 已验证
产品关联
DOI
高影响因子
INORGANIC CHEMISTRY COMMUNICATIONS
·
2026
·
IF 5.9
Yifan Deng,Ying Han,Changlun Chen,Xuemei Ren
Efficient and selective extraction of uranium (U(VI)) from complex seawater remains a critical challenge. This study proposes a dual-drive interfacial engineering strategy integrating eco-friendly plasma modification with covalent grafting to fabricate an advanced amidoxime modified MXene-based adsorbent. Hydrogen/argon plasma treatment significantly enhanced the wettability and surface hydroxyl reactivity of Ti 3 C 2 T x (TC) substrate. Subsequently, amidoxime (AO) groups were covalently anchored via a diazonium salt reaction followed by hydrothermal treatment, successfully constructing the AO/TC-H composite. The resultant material exhibited a remarkable maximum U(VI) adsorption capacity (760.18 mg·g −1 ), maintaining high efficiency across a broad pH range. Furthermore, AO/TC-H demonstrated robust cyclic stability, retaining over 87% of its initial adsorption capacity after five consecutive adsorption-desorption cycles. Notably, even in the presence of high-concentration competing vanadium, AO/TC-H preserved 68.9% of its U(VI) adsorption capacity, underscoring its exceptional selectivity. Density functional theory (DFT) calculations further elucidated the synergistic coordination mechanisms of hydroxyl and amidoxime groups with uranyl ions at the microscopic level. This work not only establishes a versatile, eco-friendly paradigm for the precise surface functionalization of 2D materials, but also provides a promising candidate for the practical deployment of seawater uranium extraction.
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Energy Materials
·
2026
·
IF 5.5
Zeng Xin,Ren Zhichao,Huang Qiqiang,Peng Wei,Li Yang,Ding Mengfei,Wen Lianghao,Zhang Peng,Yin Liang,Liu Xiang
Lithium-rich manganese-based materials (LRMO) have emerged as ideal cathode materials for high-energy-density lithium-ion batteries due to their high capacity (>250 mAh/g) and low cost. However, the continuous migration and dissolution of transition metal ions (TMs) during cycling lead to severe voltage and capacity decay, limiting their application. This paper proposes a simple and efficient strategy: suppressing transition metal ion migration in LRMO by forming MXene thin layers to encapsulate the cathode or separator. This strategy leverages MXene’s adsorption capacity for Ni/Co/Mn (verified by density functional theory calculations). This adsorption reduces the migration of transition metal ions into the electrolyte or cathode, thereby mitigating complex cross-effects while simultaneously creating locally Mn-rich regions that thermodynamically suppress the irreversible phase transition of LRMO. Concurrently, MXene’s excellent conductivity optimizes the cathode’s charge–discharge kinetics. Consequently, the MXene-encapsulated LRMO cathode electrode demonstrated outstanding cycling performance (87.16% capacity retention after 200 cycles at 0.1C, 25 ° C; and 87.36% at 0.5C after 200 cycles) and reduced voltage decay. This MXene encapsulation strategy offers an approach to enhancing the comprehensive electrochemical performance of LRMO cathode lithium-ion batteries.
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）