SENSORS AND ACTUATORS B-CHEMICAL
·
2026
·
IF 8.3
Tenghui Mao,Hailong Wang,Jinghuan Fu,Cheng Peng,Dongxu Wang,Zhenhui Liu,Haofeng Fu,Feng Gao,Chunliu Zhao
Here, we have theoretically proposed and experimentally demonstrated a sandwich-type (single-mode-no-core-single-mode, SNS) fiber-optic relative humidity sensor integrating a MXene derivatives coating and intensity-correlated twin beams, achieving high-sensitivity humidity sensing within a 30%-90% RH range by utilizing the unique quantum properties of the twin beams. This sensor utilizes the mechanism of water molecule adsorption-induced refractive index variation in the MXene derivatives coating, which modulates the constructive/destructive condition of multimode interference within the no-core fiber, thereby converting relative humidity variations into detectable optical signals. Furthermore, based on the aforementioned coating, intensity-correlated twin beams are introduced for the first time. In an unbalanced architecture, the system achieves a maximum signal-to-noise ratio enhancement of 0.831 dB during humidity increase and 0.834 dB during humidity decrease, corresponding to sensitivities of 0.3117 dB/%RH and 0.3179 dB/%RH, respectively, representing at least a 7.1-fold enhancement compared with classical single-channel humidity sensing. Moreover, in sealed-environment tests, the present sensor demonstrates a response time as fast as 1.56 s and a recovery time of 0.78 s. Its promising sensing performance offers a novel solution for applications such as medical diagnostics and industrial process control.
✓ 已验证
DOI
高影响因子
VACUUM
·
2026
·
IF 4.3
Xiaoqian Shi,Zhongxi Yang,Miao Liu,Peng Song
Two-dimensional layered materials are prone to interlayer stacking in gas sensing applications, leading to a reduction in specific surface area, slow gas diffusion, and inadequate response performance at room temperature. To address these issues, this study employed a combined hydrothermal reduction and freeze-drying method to prepare 3D rGO/MXene/In 2 O 3 composite aerogels, and systematically investigated their microstructure, pore structure, surface chemistry, and formaldehyde sensing behaviour at room temperature. The results indicate that this composite material possesses a continuous, interconnected three-dimensional porous network structure and a high specific surface area (282.78 m 2 /g), which effectively exposes active sites and accelerates gas transport. First-principles calculations confirm the presence of significant interfacial electronic interactions between the multiple components. Under room-temperature testing conditions, the aerogel-based sensor demonstrated a rapid response recovery time (6/8 s) and high formaldehyde response sensitivity (50 ppm, 26.9%), providing an experimental foundation and material design reference for the development of novel room-temperature rapid gas sensors.
✓ 已验证
DOI
高影响因子
INORGANIC CHEMISTRY COMMUNICATIONS
·
2026
·
IF 5.9
Fang Chen,Xiao Xiao,Mingkun Wu,SiYu Cai,Jie Lou,Mengkui Tian,Yi Wang
Hydrogen production via photocatalytic water splitting is an essential technology for renewable energy conversion, but its real-world application is restricted by insufficient carrier separation efficiency and compromised stability of semiconductor-based catalytic materials. In this study, we address these challenges by designing a sandwich-like Cd 0.3 Zn 0.7 S@Ti 3 C 2 MXene Schottky junction catalyst. First, we precisely tuned the molar ratio of Zn/Cd precursors to synthesize Cd x Zn 1-x S solid solutions, and found that Cd 0.3 Zn 0.7 S nanosheets exhibited the optimal photocatalytic hydrogen evolution rate, due to its harmonious absorption of visible light and optimized band structure. Next, multilayer Ti 3 C 2 MXene nanosheets were prepared via hydrofluoric acid (HF)-assisted etching of Ti 3 AlC 2 MAX phase, and then composited with Cd x Zn 1-x S precursor to form the Cd 0.3 Zn 0.7 S@Ti 3 C 2 heterojunction. When the loading capacity of Ti 3 C 2 MXene is optimized, the composite exhibits a maximum hydrogen production rate of 9.4 mmol·h −1 ·g −1 , representing a 2.5-fold enhancement compared to pristine Cd 0.3 Zn 0.7 S and a 7.5-fold enhancement compared to pristine Ti 3 C 2 MXene. The Cd 0.3 Zn 0.7 S@Ti 3 C 2 exhibits excellent photocatalytic performance, primarily attributed to its unique sandwich structure and the Schottky junction. Which significantly enhances charge separation efficiency, and effectively suppresses the photocorrosion of Cd 0.3 Zn 0.7 S and ensures superior photochemical stability.This study provides a novel approach for the development of high-performance photocatalysts for water splitting.
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Minghao Li,Qi Liu,Ye Zhang,Huiqi Shao,Guangwei Shao,Jinhua Jiang,Nanliang Chen,Siyi Bi,Jun Wang
High entropy materials (HEMs) have attracted extensive attention as a promising expectant for electromagnetic waves (EMWs) absorber due to the unique designability. However, the preparation of common HEMs generally requires complex processes, which hinders their further application. Herein, a facile approach is proposed for entropy engineering in layered double hydroxides (LDH) based composite towards EMWs absorption. Ternary (FeCoNi), quaternary (FeCoNiMn) and quinary (FeCoNiMnCr) LDHs integrating GO/MXene (GM@LE-LDHs, GM@ME-LDHs and GM@HE-LDHs) composites are successfully synthesized via a one-step hydrothermal method with modulated EMWs absorbing performance through facile entropy engineering. The GM@HE-LDH delivers a minimum reflection loss (RL min ) of −52.34 dB and a maximum effective bandwidth (EAB max ) of 5.01 GHz with less than 2 mm thickness, owing to the EMWs absorbing mechanism induced by the collaboration of entropy engineering on atomic scale and heterogeneous interface effects on nanoscale. This work provides a promising entropy engineering approach to prepare efficient EMWs absorber.
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Yukuan Wu,Shuli Lu,Jiajie Zhou,Haosu Xie,Lei Yang,Ruomei Shao,Shuqing Sun
Monitoring electrolytes in biological fluids is critical for assessing cardiovascular health, as even minor cation imbalances within narrow physiological ranges can trigger life-threatening arrhythmias. Conventional Ion-Selective Electrode (ISE) are constrained by the theoretical limits of the Nernst equation. Modern medicine requires early detection of dangerous electrolyte imbalances and personalized real-time feedback. This demands high-sensitivity and rapid response (<10s for continuous monitoring) that conventional ISEs struggle to achieve. Here, we report a MXene-enhanced ISE achieving ultra-Nernstian and real-time sensing performance through one-step assembly. This approach enables homogeneous integration of two-dimensional MXene nanosheets within the ion recognition layer, creating well-defined nanoconfinement zones that locally enrich cations inside the MXene interlayer galleries. The synergistic effects of MXene's electronegativity and nanoconfinement geometry amplify ion-carrier complexation. These effects also accelerate charge transfer across the highly conductive MXene nanochannels. This dual mechanism yields ultra-Nernstian slope responses of 102.2 mV dec −1 for K + and 88.4 mV dec −1 for Na + (average of forward/reverse cycles), and fully accounts for the disparate sensitivity enhancements observed in K + versus Na + detection. It represents 43–69% enhancement over conventional ISEs, while reducing response time from 20 to 30 s to 8.8 s. The combination of simple fabrication, nanoconfinement-induced sensitivity enhancement, and the shortened response time address scalability and precision challenges under physiological conditions. This work demonstrates that one-step assembled MXene-enhanced ISEs with nanoconfinement-amplified ultra-Nernstian response represent significant advancement in analytical electrochemistry for real-time physiological monitoring.
✓ 已验证
产品关联
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2026
·
IF 5.8
Anis Alam,Tingkai Zhao,Syeda Khair Un Nisa
Flexible solid-state supercapacitor electrodes require fiber-shaped conductors that combine high electrical conductivity and textile-level mechanical compliance. However, transforming engineering polyimide (PI) fibers from electrically insulating structural supports into integrated conductive electrodes without sacrificing their intrinsic mechanical integrity remains a significant challenge. In contrast to previously reported MXene/CNT/polymer-based flexible fibers, which are predominantly built on soft or elastomeric matrices, achieving high conductivity within a high-temperature structural polyimide while preserving its strength and toughness remains largely unexplored. Herein, we converted intrinsically insulating PMDA–ODA polyimide (PI) into conductive and mechanically robust fibers by wet-spinning of Ti 3 C 2 T x MXene- and carbon nanotube (CNT)-loaded polyamic-acid (PAA) dopes followed by thermal imidization. The resulting MXene (2D)–CNT (1D)–PI fibers exhibit a hierarchical 1D–2D conductive network in which CNTs bridge MXene sheets, suppress restacking, and reduce interflake resistance. The experimental results show that the electrical conductivity increases from ∼1.6 × 10 –10 S·m -1 for pristine PI to 1.61 S·m -1 for MXene/PI and further to 1.5 × 10 2 S·m -1 for MXene–CNT–PI. Using a solid H 3 PO 4 /PVA gel as the electrolyte, the optimized multicomponent fibers display nearly rectangular cyclic voltammetry curves, quasi-triangular charge–discharge behavior, volumetric capacitances of 80–20 F·cm -3 at 0.05–0.20 A·cm -3 , and ∼68% capacitance retention after 5000 cycles. Importantly, despite the incorporation of conductive nanofillers, the fibers retain high tensile strength (∼200 MPa), large elongation (∼35–40%), and high toughness (∼30–32 MJ·m -3 ), approaching that of pristine PI. This work demonstrates a scalable strategy to convert structural polyimide fibers into conductive, mechanically robust electrodes suitable for flexible solid-state energy-storage systems.
✓ 已验证
产品关联
DOI
高影响因子
COMPOSITES PART B-ENGINEERING
·
2026
·
IF 14
Ao Li,Jun Xu,Dezhong Xu,Zhaohui Zhang,Shengtao Zhou,Hanyuan Chen,Kefu Chen,Mizi Fan
Flexible piezoresistive aerogels are promising for wearable electronics and sensing in complex environments, yet their practical application is often limited by structural collapse during compression and moisture-induced conductive instability. Herein, an ultralight hydrophobic CNF/MXene composite aerogel is developed through synergistic structure–interface engineering. Directional freeze-casting creates vertically aligned lamellar channels that effectively confine compressive deformation and guide the assembly of MXene into continuous conductive pathways. Meanwhile, in situ vapor-phase deposition of methyltrichlorosilane (MTS) establishes a stable hydrophobic interface that suppresses moisture-induced softening and conductive fluctuations. Benefiting from the synergy between ordered structural regulation and interfacial stabilization, the resulting aerogel exhibits an ultralow density of 1.7 mg cm -3 , a water contact angle of 146.1°, and a high sensitivity of 438.65 kPa -1 over 0-98 kPa, together with stable operation over 1000 compression cycles. Reliable sensing performance is maintained under coupled high-temperature, high-humidity, and dynamic compression conditions. In addition, the aerogel demonstrates rapid photothermal conversion capability, reaching 179.6 °C under light irradiation. This work provides a practical strategy for constructing environmentally reliable porous conductive aerogels and offers new insights into the cooperative regulation of deformation behavior and interfacial stability for flexible sensing applications.
✓ 已验证
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2026
·Vol. 61
·期 25
·18097-18110
·
IF 4.4
Wu Pingping,Cao Wenjia,Hao Xuegang,Chang Mingwei,Su Weichao,Zhang Sijing,Zhou Yuanzhen
Skin-mimetic conductive hydrogels capable of simultaneously integrating mechanical compliance, stable charge transport, and multifunctional signal output are highly desirable for next-generation biointegrated electronics, yet remain challenging due to intrinsic trade-offs among conductivity, stretchability, and interfacial stability. Herein, we report an interfacial-coupling-engineered MXene–PEDOT:PSS conductive hydrogel that enables dynamically reconfigurable charge transport within a polymer network. In this design, MXene nanosheets function as a two-dimensional conductive scaffold, while PEDOT:PSS acts as a conjugated polymer bridge to construct continuous electron transport pathways within a polyacrylamide matrix. The synergistic integration of hydrogen bonding, electrostatic interactions, and coordination interactions between MXene, PEDOT:PSS, and polymer chains enables simultaneous optimization of mechanical and electrical properties. The hydrogel exhibits a tensile strength of 74.9 kPa and a fracture strain of 586%, robust adhesion to porcine skin (32 kPa), and excellent self-healing capability with a healed fracture strain of 442% (75.4% of the pristine sample). It also demonstrates high sensitivity across 0–500% strain with a gauge factor of 11.03. Furthermore, it maintains stable signal output under high-frequency strain (0.4 Hz). Its overall performance surpasses that of conventional PEDOT:PSS-based conductive hydrogels. Beyond mechanical sensing, the hydrogel enables motion-driven information encoding and transmission via wearable Morse-code demonstrations. This work establishes an interfacial-coupling-driven materials design paradigm for multifunctional conductive hydrogels, offering new opportunities for multimodal sensing, biointegrated electronics, and intelligent soft communication systems. Graphical abstract
The alternative text for this image may have been generated using AI. Interfacial-coupling-engineered MXene–PEDOT:PSS conductive hydrogels enable dynamically reconfigurable charge transport, combining high stretchability, strong tissue adhesion, and sensitive strain response. The hydrogel further enables motion-driven wearable information encoding, providing a versatile platform for multimodal sensing and soft biointegrated electronic communication.
✓ 已验证
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Huayuying Peng,Fei Liu,Shangyan Zhou,Xinyi Ran,Xiaodan Wang,Mengqing Yao
Metal promotion is a common strategy to improve the hydrogenation activity of oxide catalysts. However, its efficacy is frequently hindered by insufficient hydrogen supply to active sites and the tendency of metal dopants to sinter under high-temperature conditions. Herein, we design a Cu-MXene/ZnZrO x composite catalyst, in which Ti vacancies within the MXene framework anchor Cu, enabling efficient hydrogen activation and subsequent spillover to ZnZrO x . In comparison with the conventional Cu/ZnZrO x catalyst, the Cu-MXene/ZnZrO x structure not only enhances the resistance of Cu species to high-temperature sintering but also significantly promotes the kinetics of hydrogen transfer. Additionally, this structural design facilitates the generation of a higher density of oxygen vacancies (OVs). As expected, the Cu-MXene/ZnZrO x catalyst demonstrates outstanding performance, achieving 12.3% CO 2 conversion and 91.2% methanol selectivity—exceeding all previously reported ZnZrO x -based systems. Density functional theory (DFT) calculations and Diffused reflectance infrared fourier transform spectroscopy (DRIFTS) indicate that atomically dispersed Cu sites facilitate H 2 dissociation, while the Cu-MXene interface promotes rapid H spillover to neighboring Zn-Zr sites, enhancing electron transfer and CO 2 reduction kinetics, thereby forming abundant active intermediates of HCOO* and CH 3 O*. This study offers a robust and scalable approach for developing highly efficient catalysts for CO 2 -to-methanol conversion.
✓ 已验证
DOI
高影响因子
Materials Today Communications
·
2026
·
IF 4.9
Na Qiang,Tao Zhu,Lihong Huang,Wenlong Zhang,Peishi Hu,Jiayi Lu,Xuefeng Zhang,Qingyun Tang,Guocong Liu,Qiang Lin,Shuo Tang
Bone tissue engineering requires biomaterials capable of bionically simulating the physiological electro-microenvironment of natural bone to regulate osteogenic cell behavior. Herein, Ti 3 C 2 T x MXene/P(VDF-TrFE) electroactive nanocomposite membranes with tunable surface potential were successfully fabricated via electrospinning technology. The microstructure, crystal phase composition, thermal stability, piezoelectric performance, and electrical conductivity of the composite membranes were systematically characterized using Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), Raman Spectroscopy (Raman), Differential Scanning Calorimetry (DSC), Thermogravimetric Analysis (TGA), piezoelectric coefficient (d 33 ) measurements, and surface resistance tests. XRD, FTIR, and Raman characterizations confirmed that MXene acted as a nucleating agent, which inhibited the formation of the α-phase of P(VDF-TrFE) and promoted the generation of the ferroelectric β-phase. Piezoelectric and electrical property tests demonstrated that MXene doping significantly enhanced the piezoelectric performance and electrical conductivity of the composite membranes. Specifically, the d33 value of the composite membrane with 2.0 wt% MXene reached 5.4 pC/N. Moreover, the surface resistance of MXene-doped membranes was drastically reduced from 230.0 mΩ (for the pure P(VDF-TrFE) membrane) to ∼24–25 mΩ, constructing an efficient charge transport pathway. Consequently, the MXene/P(VDF-TrFE) membranes facilitated cell adhesion, stretching, and proliferation, exhibiting excellent biocompatibility. Meanwhile, cells cultured on the composite membranes displayed enhanced spreading and improved cytoskeletal organization. Further osteogenic assessments revealed that MXene-containing substrates effectively promoted osteogenic differentiation at both the early and late stages, as well as enhanced the formation of mineralized extracellular matrix. These findings suggest that MXene incorporation provides a favorable microenvironment for directing the osteogenic differentiation of Bone Marrow Mesenchymal Stem Cells (BMSCs). The fabricated MXene/P(VDF-TrFE) nanocomposite membranes possess a biomimetic microenvironment with sustainable electric potential and optimal topographical structure, offering an innovative and well-suited strategy for applications in bone regeneration.
✓ 已验证
DOI
高影响因子
Plasmonics
·
2026
·
IF 5.6
Han Huibo,Singh Ragini,Niu Ben,Zhou Penglei,Zhang Bingyuan,Kumar Santosh
Ochratoxin A (OTA) is a potentially harmful mycotoxin that is widely found in agricultural products and animal by-products. In order to ensure our physical health, OTA testing is very important. Therefore, we chose to use an optical fiber biosensor based on the principle of local surface plasmon resonance (LSPR), and we designed an asymmetric optical fiber structure using single-mode optical fiber (SMF) to detect different concentrations of OTA. Gold nanoparticles (AuNPs) were applied to the sensing region to stimulate the LSPR effect, and then Nb 2 CTxMXene and CeO 2 -nanorods were sequentially fixed on the probe to change the dielectric environment around the sensing region to improve the performance of the sensor. The sensor has a linear range of 0.5 ng/mL to 60 ng/mL, a sensitivity of 0.0805 nm/(ng/mL), and a limit of detection (LOD) of 3.95 ng/mL. After that, we evaluated it through a series of tests, including repeatability, reproducibility, pH, stability, and selectivity. Finally, we also tested and verified the real samples. According to the experimental results, the sensor shows good performance in OTA detection, indicating that the sensor has good application potential and broad development prospects. This work designed an asymmetric optical fiber biosensor based on LSPR, achieving a broad detection range and a low LOD for OTA detection by coating with AuNPs, Nb 2 CTxMXene, and CeO 2 -nanorods. Its reliability and vast prospects in practical applications were validated through repeatability, stability, and real sample testing.
✓ 已验证
DOI
高影响因子
Applied Materials Today
·
2026
·
IF 7
Xueyue Lyu,Liying Pan,Qiu Zhang,Xinrui Wang,Chenyang Zhang,Jiawei Qi,Guangdong Zhao
2D MXene synergistically combines with biochar fibers to construct a porous 3D conductive network. • Ceramic aerogels possess superior microwave absorption capabilities coupled with structural stability. • A synergistic attenuation mechanism dielectric loss, magnetic loss, polarization, as well as multiple refraction and scattering is achieved. • An ultra-strong reflection loss of −60.1 dB is achieved at a thickness of 2.9 mm. Developing efficient electromagnetic wave absorbing materials capable of adapting to complex environments is of significant importance for advanced radar and electronic systems. Here, highly conductive MXene nanosheets are introduced into the biomass macromolecule bacterial cellulose (BC), and a BC/MXene (BM) hybrid scaffold with a honeycomb-like structure was prepared via directional freeze-drying. Subsequently, the SiBCOFe precursor was combined with the BM scaffold using a liquid-phase infiltration method, yielding BM/SiBCOFe ceramic aerogels. The results show that the conductive network formed by pyrolyzed BC-derived biomass carbon synergistically with MXene enhances the dielectric loss capability of the aerogel. Meanwhile, the heterostructures in situ generated on the surface of the BM from the precursor effectively improve the interfacial polarization effect and mechanical properties of the aerogel. Fe doping not only enhances magnetic loss but also optimizes impedance matching, ultimately achieving dual improvement in microstructure design and electromagnetic wave absorption performance. The BM/SiBCOFe ceramic aerogels exhibits excellent electromagnetic wave absorption performance: at a matching thickness of only 2.9 mm, the minimum reflection loss ( RL min ) reaches −60.1 dB, with an effective absorption bandwidth (EAB) of 4.6 GHz. The aerogel also exhibits excellent thermal and structural stability, making it an efficient electromagnetic wave absorbing material suitable for extreme environments. Download: Download high-res image (317KB) Download: Download full-size image
✓ 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）