npj 2D Materials and Applications
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2026
·
IF 9.2
Sattar Kubra,Babichuk Ivan S.,Khan Saleem Ayaz,Yang Jian,Rizwan Syed
The emergence of artificial intelligence and neuromorphic computing has revealed the importance of two-dimensional (2D) layered materials in the field of non-volatile memory technologies. Based on the available literature, this is the very first report demonstrating the integration of 2D Transition Metal Carbide MXenes, i.e. Titanium Carbide (Ti 3 C 2 T x ) and Vanadium Carbide (V 2 CT x ) with MoS 2 from the Transition Metal Dichalcogenide family for memristor devices. The nanoscale Ti 3 C 2 T x and V 2 CT x MXene were employed as the bottom electrodes (as independent as well as bi-electrode combination) deposited uniformly on the substrate, along with the successful transfer of Chemical Vapor Deposition grown few-layers MoS 2 onto the nano-ranged sheets of MXene with Ag utilized as the top electrode. Raman analysis and Optical microscopy images indicated the fabrication of the novel best-yielding device Ti 3 C 2 /V 2 C/MoS 2 /Ag structure with high fidelity. Additionally, current-voltage (I-V) analysis showcased bipolar resistive switching phenomena comprising of an efficiently low SET voltage of 0.6 V, endurance of up-to 3000 cycles and retention of over 10 3 seconds, extrapolated over million seconds. The stability of SET/RESET voltages, cycle-to-cycle and device-to-device reproducibility is demonstrated by 18 devices for a memristor array of (5 ×5), emphasizing the unexplored potential of MXene and MoS 2 based memristors for the scalable and large-area integration of devices in future memristors. Furthermore, Ti 3 C 2 /V 2 C/MoS 2 /Ag memristor also exhibited synaptic features of potentiation and depression showcasing potential to be employed in neuromorphic computing techniques.
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Journal of Materiomics
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2026
·
IF 10.6
Yuhan Tang,Xingyao Dai,Junjie Zou,Yang Yue,Yanan Ma,Xin Zhang
Traditional pressure sensors often lack the required linear characteristics in their force-electric transfer functions, which limits the practicality in numerous fields such as the Internet of Things (IoT) and artificial intelligence. This study has developed a self-powered pressure sensor based on Ti 3 C 2 T x -MXene membranes, which are modified with cellulose nanofibrils (CNF) and poly diallyl dimethyl ammonium chloride (PDDA) to create composite membranes with negative and positive charges. Owing to their two-dimensional nanofluidic channels and surface charge properties, these composite membranes can efficiently convert mechanical pressure into electrical signals. Notably, the output signals exhibit a linear relationship with applied pressure, significantly simplifying signal processing. To optimize the sensing performance, the nanofluidic channel structures of the composite membranes were fine-tuned to enhance the sensitivity and response speed. Furthermore, the influence of electrolyte concentrations on sensing performance, including detection range, sensitivity, and stability, was systematically investigated. Experimental results demonstrate that the sensor exhibits excellent linear response, high sensitivity, fast response/recovery times, good stability, and repeatability. This research not only provides new ideas for the design of self-powered sensors but also advances the application of 2D materials in the field of intelligent sensing.
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ACS Applied Energy Materials
·
2026
·
IF 5.5
Jie Li,Yongxiang Wang,Jingting Sun,Yong Dai,XiaoHua Cao,YongMing Luo,Xiaoping Xing,Kaige Chen
Photothermal CO2 hydrogenation harnesses light and heat synergistically to convert CO2 into value-added chemicals, representing an emerging pathway toward carbon-neutral energy systems. Layered MXene, with its large specific surface area and moderate conductivity, is ideal for enhancing photothermal performance. In this work, Ni nanoparticles (NPs) were loaded onto the MXene-derived TiO2 (MTiO2) surface via a hydrothermal method to synthesize Ni@MTiO2 composites with high photothermal CO2 methanation performance. The solar-light-driven methane (CH4) production of the 30Ni@MTiO2 catalyst was 66.03 mmol gcat–1 h–1, with a selectivity approaching 100%. The superior catalytic performance can be primarily attributed to the high dispersion of Ni NPs, the substantial concentration of oxygen vacancies, enhanced charge-carrier separation efficiency, and the robust adsorption capacity. This study provides a feasible strategy for synthesizing efficient photothermal CO2 methanation catalysts derived from MXene.
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APPLIED CATALYSIS B-ENVIRONMENTAL
·
2026
·
IF 19.7
Xingyang Wu,Yucui Xiang,Miao Tian,Jing Lyu,Kexin Wang,Xiang Li,Haotian Song,Tao Zhang,Jiahao Qiu,Liyong Gan,Zhongkai Hao,Guo Qin Xu,John Hon Kay Yip
Photocatalytic CO 2 reduction in aqueous media represents a crucial route for solar-to-fuel conversion using water as the proton source. However, selectively driving multi-electron CO 2 reduction over the competing hydrogen evolution reaction (HER) remains challenging due to the complex proton-coupled electron transfer (PCET) reactions. Here, a hydrothermal approach is designed with in situ alkalization to anchor robust CuNi dual-atom sites on antioxidative hydroxyl-rich Ti 3 C 2 (OH) x MXene. The resulting Cu 1 Ni 1 /Ti 3 C 2 (OH) x catalyst achieves a high CO yield of 635.8 μmol·g −1 ·h −1 with 99.7 % selectivity and superior cycling stability, outperforming most reported MXene-based and diatomic-site catalysts. In situ spectroscopy and theoretical calculations reveal that Cu sites promote *COOH/*H formation and CO desorption, while Ni sites favor *COOH-to-*CO conversion and enhance water adsorption. This dual-atom synergy precisely regulates PCET at adjacent Cu and Ni sites, enabling HER suppression and enhanced CO generation. This work establishes a new paradigm for engineering stable MXene anchored dual-atom catalysts with site-specific functionalities for highly selective CO 2 photoreduction.
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Biosensors-Basel
·
2026
·Vol. 16
·期 4
·229
·
IF 6.2
Guofan Zeng,Leiting Liao,Zehong Wu,Jinye Chen,Peidi Zhou,Yihan Qiu,Mingcen Weng
Flexible and wearable electronics require soft sensing materials that balance mechanical compliance, stable signal transduction, and durability for human–machine interfaces (HMIs). To address the limitations of single-filler systems, we propose a poly(vinyl alcohol) (PVA)/aramid nanofiber (ANF)/MXene organogel (PAM) as a multifunctional soft platform. This design integrates a PVA physically crosslinked network with ANF for mechanical reinforcement and MXene for electrical functionality. The optimized PAM composite exhibits outstanding mechanical properties, including a fracture stress of 2931 kPa, a fracture strain of 676%, and a fracture toughness of 9.04 MJ m−3. Importantly, PAM serves as a single material platform configurable into three sensing modalities. The resistive strain sensor achieves a gauge factor of 3.1 over 10–100% strain and enables the reliable recognition of human joint movements and gestures. The capacitive pressure sensor delivers a sensitivity of 0.298 kPa−1, rapid response/recovery times of 30/10 ms, and is integrated with a wireless module to control a smart car. Furthermore, the PAM-based triboelectric nanogenerator (TENG) delivers excellent electrical outputs (Voc= 123 V,Isc= 0.52 μA,Qsc= 58 nC) and functions as a self-powered smart handwriting pad, achieving a machine-learning-based recognition accuracy of 97.6%. This work demonstrates the immense potential of the PAM organogel for advanced, self-powered HMIs.
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PubMed
高影响因子
Biomaterials Science
·
2026
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IF 6.1
Jian Pu,Nengshen Zhang,Luyao Tang,Zemin Ling,Chao Zhang,Jian Song
Prosthetic wear remains a key challenge in metatarsophalangeal (MTP) joint replacement, where improved lubrication is essential for reducing interfacial wear and extending implant lifespan. Inspired by the lubrication mechanisms of natural joints, this study proposes a biomimetic strategy that combines a brush-like copolymer with two-dimensional nanomaterials to enhance the tribological performance of artificial MTP joint materials. A brush-like polymer (HAPA) was synthesized by covalently grafting PAMPS side chains onto hyaluronic acid (HA), mimicking the natural lubricin–HA complex. HAPA and MXene nanosheets were incorporated into polyvinyl alcohol (PVA) hydrogel and physically interlocked within porous polyetheretherketone (PEEK) via freeze–thaw cycles to form a cartilage-inspired composite (PVA/HAPA/MXene–PEEK). The composite exhibited a high water content of 83.0% and characteristic biphasic lubrication behavior. Moreover, it exhibited exceptional lubricating performance against various counterface materials, reducing the coefficient of friction with TC4 to as low as 0.033. This improvement is attributed to the hydration layer provided by HAPA and the potential interfacial lubrication contribution of MXene. The composite further showed good cytocompatibility. Overall, this design offers a promising biomimetic strategy for improving lubrication in MTP joint prostheses, while noting that direct evidence of MXene transfer and antibacterial activity warrants future investigation.
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ACS Nano
·
2026
·
IF 17.3
Lihao Zhou,Zhongyi Duan,La Li,Zhongming Wei,Guozhen Shen
Curved image sensors hold great appeal in intelligent artificial vision systems, yet current sensor curving techniques still suffer from certain limitations. Taking inspiration from the cuttability and wrap-like transferability of paper-based electronics in three-dimensional curvy architecture and matched hydrophilic functional materials, we propose an image sensor with variable curvature through a vacuum filtration and folding-pasting process assisted by a thermal release tape mask. This method enables the uniform, patterned, hierarchical, and damage-free integration of Mo2TiC2Tx and silver nanowires onto a paper-based substrate. Both convex and concave image sensors are designed and fabricated: the convex type demonstrates wide-field infrared light source tracking when equipped on a robotic dog, while a concave one enables low-distortion imaging with a single lens. Furthermore, by arranging an array of concave curved image sensors around an object and capturing images from different angles, spatial modeling of the object can be realized even in a dark-field environment, showing great potential in bionic compound eyes and artificial vision systems.
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Surfaces and Interfaces
·
2026
·
IF 6
Mieyi Wen,Baoli Ou,Weiqi Deng,Ping Zhu,Yu Luo,Wangdong Zeng
Ti 3 C 2 T x MXene shows potential for composite anti-corrosion composite coatings due to its excellent barrier properties and mechanical strength. However, its susceptibility to oxidative decomposition and inherent hydrophilicity limit applications in superhydrophobic coatings. To address these issues, we modified Ti 3 C 2 T x MXene nanosheets with dopamine and 1-dodecanethiol via a one-step hydrophobic treatment, producing SH/PDA-Ti 3 C 2 T x MXene. We also synthesized fluorinated prepolymers and fabricated self-healing superhydrophobic coatings with excellent photothermal and anti-corrosion properties using spray-coating. The coating exhibits outstanding anti-corrosion performance due to effective dispersion of SH/PDA- Ti 3 C 2 T x MXene, physical barrier effects, and superhydrophobic structure. SEM, EDS, and EIS analyses confirmed that the coating maintained excellent corrosion protection for Q235 substrates even after 60 days immersion in 3.5wt% NaCl solution, primarily attributed to the physical barrier of SH/PDA-Ti 3 C 2 T x MXene and superhydrophobic surface. Additionally, the coating demonstrated excellent self-healing properties: after long-term corrosive medium exposure, its impedance and contact angle rapidly recovered from 2.17 × 10 9 Ω·cm 2 and 76.9° to 9.55 × 10 10 Ω·cm 2 and 153.3° under 2.80 Sun irradiation. This study provides a novel approach for future MXene applications in metal corrosion protection through hydrophobic modification of Ti3C2Tx MXene and superhydrophobic coating construction.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Jiaheng Xu,Hailong Shen,Kaiyang Gao,Ziyuan Xu,Siyi Liu,Xianqing Liang,Wenzheng Zhou,Jin Jia,Haifu Huang,Yuanyuan Zhu
A trace-MXene-induced dual-interfacial regulation mechanism is proposed and experimentally validated. The negatively charged MXene nanosheets spontaneously adsorb on both Zn anodes and MnO 2 cathodes, forming a dynamic protective layer that suppresses parasitic reactions and promotes uniform Zn deposition. • Synergistic electrolyte reconfiguration and desolvation optimization are achieved. Combined theoretical and experimental analyses reveal that acetate ions and MXene collaboratively optimize the Zn 2+ solvation structure, reduce the desolvation energy barrier, and facilitate preferential Zn deposition along the (100) crystal plane. • Exceptional electrochemical performance is demonstrated in both symmetric and full cells. The symmetric Zn cell exhibits ultra-stable cycling for 1200 h at 1 mA cm −2 , and the Zn//MnO 2 full cell delivers a high capacity of 346 mAh g −1 with 70% retention after 1500 cycles at 5 A g −1 . Aqueous zinc-ion batteries (AZIBs) are promising alternatives to lithium-ion batteries owing to their intrinsic safety, low cost, and environmental compatibility. However, uncontrolled dendrite growth, hydrogen evolution, and interfacial passivation of Zn anodes severely hinder their long-term cycling stability. Herein, we propose a cost-effective electrolyte engineering strategy by introducing trace amounts of Ti 3 C 2 T x MXene nanosheets into a low-concentration zinc acetate (Zn(Ac) 2 ) electrolyte. The negatively charged MXene nanosheets are electrostatically assembled onto both Zn anodes and MnO 2 cathodes, constructing a dynamic interfacial layer that simultaneously suppresses parasitic reactions and enhances Zn 2+ transport. Density functional theory and molecular dynamics simulations reveal that acetate ions and MXene synergistically optimize Zn 2+ solvation structures, reduce desolvation energy, and guide uniform Zn deposition along the (100) facet. Consequently, the symmetric Zn cell exhibits ultra-stable cycling for 1200 h at 1 mA cm −2 , while the Zn//MnO 2 full cell delivers a high capacity of 346 mAh g −1 at 0.2 A g −1 and retains 70% capacity after 1500 cycles at 5 A g −1 . This work demonstrates a mechanistically driven and economically viable route for constructing high-performance, long-life AZIBs through multifunctional MXene-electrolyte interactions.
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ACS Nano
·
2021
·
IF 15.881
Xinliang Li,Qing Li,Yue Hou,Qi Yang,Ze Chen,Zhaodong Huang,Guojin Liang,Yuwei Zhao,Longtao Ma,Mian Li,Qing Huang,Chunyi Zhi
The renaissance of aqueous Zn ion batteries has drawn intense attention to Zn metal anode issues, including dendrites growth, dead Zn, low efficiency, and other parasitic reactions. However, against the widely used 2D Zn foil, in fact, the Zn powder anode is a more practical choice for Zn-based batteries in industrial applications, but the related solutions are rarely investigated. Herein, we focus on the Zn powder anode and disclose its unknown failure mechanism different from Zn foils. By utilization of 2D flexible conductive Ti3C2Tx MXene flakes with hexagonal close-packed lattice as electrons and ions redistributor, a stable and highly reversible Zn powder anode without dendrite growth and low polarization is constructed. Low lattice mismatch (∼10%) enables a coherent heterogeneous interface between the (0002) plane of deposited Zn and (0002) plane of the Ti3C2Tx MXene. Thus, the Zn2+ ions are induced to undergo rapid uniform nucleation and sustained reversible stripping/plating with low energy barriers via the internally bridged shuttle channels. Paired with cyano group iron hexacyanoferrate (FeHCF) cathode, the FeHCF//MXene@Zn full battery delivers superior cycle durability and rate capability, whose service life with a CE of near 100% touches 850% of bare Zn powder counterparts. The proposed Ti3C2Tx MXene redistributor strategy concerning high-speed electrons/ions channel, low-barrier heterogeneous interface, is expected to be widely applied to other alkali metal anodes.
研究领域:
储能与转换
·
材料科学
·
电化学
·
纳米材料
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电池技术
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2022
·
IF 9.136
Juanjuan Yin,Kuo Wei,Yuwei Bai,Ying Liu,Qingrui Zhang,Jing Wang,Zhihui Qin,Tifeng Jiao
Two-dimensional (2D) MXenes-based nanostructures have recently emerged as effective electrocatalysts because of their excellent electrical conductivity and superior hydrophilicity. Nevertheless, the low electrocatalytic activity and the poor stability have hampered their applications in practical hydrogen production. Herein, a novel method to modulate the electronic structure and improve the catalytic activity of MXene by integrating amorphous CoSnO 3 onto wrinkled Ti 3 C 2 T x MXene nanosheets is reported, producing a promising electrocatalyst (MXene@CoSnO 3 ) toward alkaline hydrogen evolution reaction (HER). It is found that CoSnO 3 nanocubes are well grown on the surface of Ti 3 C 2 T x MXene, stabilizing MXene nanosheets against spontaneous oxidation. More importantly, the strong interfacial electronic coupling between the two components greatly prompts the redistribution of electrons at the MXene and CoSnO 3 interfaces and alters the electronic structure around Co, which enables the activation of high-potential Sn to have an optimal *H adsorption (ΔG*H), promoting the H* conversion for HER. The fabricated MXene@CoSnO 3 exhibits high alkaline HER performances with an ultralow overpotential of 45 mV at 10 mA cm −2 , a small Tafel slope of 51 mV dec -1 and the long-term stability in 1 M KOH, which even compares with commercial Pt/C catalyst.
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Journal of Materials Chemistry C
·
2022
·Vol. 10
·期 45
·17066-17074
·
IF 8.067
Zhuochao Wang,Peng Wang,Wenxin Cao,Chunqiang Sun,Zicheng Song,Dongchao Ji,Lei Yang,Jiecai Han,Jiaqi Zhu
Electromagnetic interference (EMI) pollution poses risks to electronic devices and human health and has emerged as a major source of pollution. In addition to being low in weight and exhibiting high transparency, flexibility, and easy processability, the polymer-based transparent conductive films (TCFs) increasingly used for EMI shielding exhibit fragility, and scratches in TCFs during service usually cause severe electromagnetic wave leakage and waste. To address this issue, we designed a DMBA-modified oxime-carbamate polyurethane film with remarkable mechanical strength, high transmittance, and self-healing efficiency and prepared TCFs by uniformly depositing AgNWs and Ti3C2Tx MXene on the material surface. The TCFs show an ultra-low sheet resistance (18 Ω sq−1), high transmittance (82.8%), good EMI shielding effectiveness (SE, 27.1 dB), and excellent retention of properties after 1000 flexures and rapid recovery after three cutoff/self-repair cycles, demonstrating resistance against damage. The novel TCFs exhibit great potential for application in consumer electronics, radio communications, and radar stealth.
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