Surfaces and Interfaces
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2025
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IF 6.3
Chen Li,Dongting Ye,Jiangbo Tan
Recombination layer engineering is a key enabler in monolithic perovskite/silicon tandem solar cells, where charge extraction and optical management must be simultaneously optimized. In this study, we introduce a composite Ti 3 C 2 T x MXene/indium zinc oxide (IZO) interlayer as a tunable recombination layer to enhance both electrical and optical performance in two-terminal tandem architectures. The interlayers were fabricated by integrating few-layer Ti 3 C 2 T x MXene flakes into an IZO matrix, forming a conductive yet transparent network. Systematic tuning of MXene content revealed that the sample with 10 vol% (MX-10) offered a low resistivity (∼1.69 mΩ·cm), and high optical transmittance. EIS and TRPL analyses demonstrated improved charge recombination dynamics and enhanced carrier extraction. When implemented in monolithic tandems, the MX-10-based device achieved a PCE of 26.67%, outperforming the ITO-based control device (24.40%), with improved J SC and FF. Long-term stability testing over 1000 hours under continuous illumination revealed only 9.5% degradation in MX-10 devices, confirming the material's promise for practical applications. Our findings highlight the synergistic role of MXene and IZO in constructing an efficient, transparent, and stable interfacial layer for next-generation tandem photovoltaics.
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2021
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IF 8.128
Zhenting Yin,Jingyi Lu,Ningning Hong,Wenhua Cheng,Pengfei Jia,Huijuan Wang,Weizhao Hu,Bibo Wang,Lei Song,Yuan Hu
Flexible polyurethane foam (FPUF) is the most used polyurethane, but the highly flammable characteristic limits its widespread usage. In this work, ZIF-8@Ti 3 C 2 T x was synthesized to reduce the heat and toxic gases of FPUF. Flame-retardant FPUF was characterized by cone calorimeter (Cone), thermogravimetric analysis/fourier-transform infrared spectroscopy (TG-FTIR), tensile and compression tests. Compared with pure FPUF, these results showed that the peak of heat release rate (PHRR), total heat release (THR), CO and HCN of FPUF6 decreased by 46%, 69%, 27% and 43.5%, respectively. Moreover, the tensile and compression strength of FPUF6 demonstrated a 52% and 130% increment, respectively. The superior dual metal catalytical charring-forming effect and physical barrier effect of ZIF-8@Ti 3 C 2 T x were achieved. In summary, a simple and reliable strategy for preparing flame-retardant FPUF with reinforced mechanical and fire safety properties was provided.
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高影响因子
Advanced Science
·
2024
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IF 14.3
Junce Wang,Jinfeng Chen,Ningning Liu,Jingjing Lei,Hong-Wen Gao,Fei Yu,Fanghui Pan,Jie Ma
Controlled synthesis and regulation of 2D nanomaterials with sufficient active sites are promising in electrochemical fluorine capture, but simultaneously achieving rapid rates and efficient activity of intercalation materials remains challengs. Herein, an integrated strategy of micro-regulation interlayer space and in situ modification of MXenes is proposed to enhance ion storage kinetics. The wedge-like microstructure of aluminum oxide/incomplete-Ti 3 C 2 T x MXene (Al 2 O 3 /i-Ti 3 C 2 T x ) is constructed by incomplete etching MAX and in situ derivation of A-layer element, in which the sub-nanoscale interlayer space is conducive to the small size ions intercalation, and the formation of “nanopump-like” effect boosted the ions diffusion. As evidenced by simulation calculations, Al 2 O 3 nanoparticles not only shorten the migration distance of electrons/hydrated ions in interlayers but also contribute a lower adsorption energy barrier, bringing excellent capture kinetics and stability. Benefiting from the interfacial conversion-intercalation pseudocapacitance, such electrode is endowed with a high defluoridation capacity (69.9 mg g −1 at 1.6V) and an outstanding instantaneous adsorption rate (9.51 mg g −1 min −1 ), and shows satisfactory stability in more than 200 cycles. The physicochemical coupling strategy opens a novel approach to optimizing the interlayer structure and in situ modification interface of MXene, which also provids a universal idea for efficient capture of varisized ions of intercalation materials.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
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IF 15.1
Dongdong Li,Junzhi Li,Haoran Liu,Guangshe Li,Gennadi Milinevsky,Lili Wang,Wei Han
Optimizing electrode structure, reducing the proportion of inactive substances, and fabricating a flexible free-standing electrode without fluid collection are desirable to enhance the energy density , fast charging, and cycling stability of flexible batteries. In this study, we utilized the biological characteristics of Aspergillus niger to synthesize one-dimensional (1D) Sb 2 S 3 nanoparticle composite N-doped C ribbons. Subsequently, vacuum filtration was employed to blend and assemble these 1D composite C ribbons with Ti 3 C 2 T x nanosheets into a free-standing flexible anode for Sodium-ion batteries (SIBs). Using 1D C ribbons can effectively inhibit the stacking of 2D MXenes, thereby facilitating the penetration of Na + into Sb 2 S 3 @NCR through the interlamellar pores. Ex-situ X-ray photoelectron spectroscopy analyses indicated that the MXene layers were not only physically confined but also effectively suppressed polysulfide diffusion through chemical confinement. Consequently, the energy density and cycling stability of the Sb 2 S 3 @NCR composite electrode were enhanced. The Sb 2 S 3 @NCR/MXene||CGPFE||NVP@CNF full battery, consisting of an Sb 2 S 3 @NCR/MXene anode, free standing NVP@CNF cathode, and PVDF-HFP fiber quasi-solid-state polymer electrolyte prepared via electrospinning, achieved 1,000 stable cycles at a current density of 1 Ag −1 . Additionally, the flexible quasi-solid-state bag-type battery could power an LED lamp at a bending angle of 0°–180°.
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TALANTA
·
2026
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IF 6.7
Chenglong Chen,Qiaoxia Zhang,Xiajuan Wang,Ran Miao,Tiesheng Shi,Qingyun Liu
To resolve the conflict between multidimensional interferences derived from complex matrices and the stringent requirements for trace-level detection sensitivity, a novel electrochemical aptasensor was constructed for highly sensitive kanamycin (KANA) detection based on a split aptamer engineering strategy. Ag–Ti 3 C 2 T x MXene, synthesized via in-situ reduction of silver nanoparticles onto the surface of two-dimensional MXene nanosheets, is employed for electrode decoration. This composite possesses abundant binding sites for aptamer 1 (Apt1) immobilization and exhibits outstanding catalytic performance in the reduction of H 2 O 2 . Signal acquisitions were performed under reductive potential conditions, endowing the sensor with superior anti-interference capability. Upon KANA addition, aptamer 2 (Apt2) can assemble into a ternary structure with the target and Apt1, leading to the displacement of cDNA and triggering a signal-down response. Under optimized conditions, the fabricated aptasensor presents a broad linear range of 1∼20000 nM with a limit of detection (LOD) of 0.12 nM, and exhibits excellent selectivity, reproducibility, and strong stability. In addition, the aptasensor demonstrates satisfactory recovery rates in real sample analysis, indicating its great potential for practical applications. The combination of Ag–Ti 3 C 2 T x MXene nanocomposite and split aptamer engineering technology provides a feasible strategy for highly sensitive detections of trace-level antibiotic residues in complex food matrices.
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高影响因子
APPLIED SURFACE SCIENCE
·
2026
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IF 6.6
Li Hao,Tiantian Wang,Tingyu Li,Yiping Sun,Sergey Chizhik,Shujuan Liu,Xuqing Liu,Qian Ye
The formulation and improvement of high-efficiency lubricant additives on the basis of novel two-dimensional MXene materials have drawn increasing attention in recent years. Herein, we report the synthesis of N, P doped Ti 3 C 2 T x MXene using ammonium hypophosphite as the N/P source, followed by surface modification with catechol-containing ionic liquid to obtain ionic liquid-functionalized MXene. Tribological tests reveal that ILs@N, P‑MXene markedly improve the tribological properties of 500SN with 0.75 wt% addition. Compared with the lubricant 500SN, the mean COF is reduced to 0.107, the wear volume decreases by 65.8%, and their load-carrying ability is improved to 650 N from 150 N. XPS analysis indicates that ILs@N, P-MXene undergoes tribochemical reactions with the steel substrates during sliding, forming a continuous and stable protective tribofilm comprising carbonitrides, iron oxides, titanium oxides and iron phosphates. This in-situ formed tribofilm successfully inhibits direct asperity contact between the mating surfaces, thereby endowing the lubricant system with good load-carrying capacity and improved tribological performance.
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FIBERS AND POLYMERS
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2026
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IF 3.1
Hu Shen,Xie Jinlin,Zhang Boxuan,Wang Weiye,Ran Xuqin,Yang Ming,Li Xinyu,Kobesy Osama,Wei Guoke,Qiu Hua,Gu Peng
The rapid development of smart wearable technology has driven innovation in the field of flexible strain sensors. Carbon nanotube (CNT) fibers have emerged as promising candidates for the fabrication of flexible strain sensors due to their exceptional flexibility, remarkably high specific surface area, outstanding mechanical properties, and excellent electrical conductivity. However, interstitial voids between CNT bundles constitute structural defects that impair both load-bearing capacity and electron transport efficiency. This limitation can be effectively mitigated by incorporating metal nanoparticles, which not only fill these voids but also enhance composite performance through their intrinsic low electrical resistance and exceptional chemical inertness. In this study, MXene was utilized as a reducing agent to directly reduce platinum particles from chloroplatinic acid and autonomously grow into the voids of carbon nanotube yarns without the need for additional reducing agents. This modification strategy resulted in substantial enhancements in both mechanical and electrical properties: The tensile strength of platinum-modified CNT yarns increased from 121.2 to 137.27 MPa (13.3% increase), while electrical conductivity demonstrated an 85.3% improvement from 6.18×10 4 S/m to 11.45×10 4 S/m. The prepared flexible and stretchable strain sensors exhibit a resistive change of 380%, a tensile strain range of 0–30%, a GF sensitivity of 23.8, a fast response time of 0.6 s, a recovery time of 0.8 s, and dynamic sensing stability under varying conditions. Significantly, the sensor enables multi-channel synchronous monitoring of biomechanical signals at major human joints, establishing a new design framework for CNT yarn-based elastic strain sensors.
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高影响因子
ACS Applied Materials & Interfaces
·
2026
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IF 7.8
Lidong Wang,Yongyan Sun,Yuting Sun,Changbin Zhang,Guixi Wang,Junnan He,Yan Zhao,Ming Li
Photodynamic therapy (PDT) holds promise for oral squamous cell carcinoma (OSCC) but is limited by the tumor microenvironment─specifically hypoxia, elevated glutathione (GSH), and the lack of tumor-selective photosensitizer activation. To overcome these barriers, we developed a GSH-activated nanoplatform Cu-TCPP(Zn)/Ti3C2Tx for fluorescence imaging-guided synergistic photodynamic/chemodynamic therapy (PDT/CDT). The system is constructed from two-dimensional Cu-TCPP(Zn) MOF nanosheets, where Cu2+ and Zn2+ completely quench the fluorescence and PDT activity of TCPP and surface-anchored Ti3C2Tx MXene. In the TME, overexpressed GSH reduces Cu2+ to Cu+ and abstracts Zn from the Zn–N4 complex, triggering nanocomposite disintegration to restore fluorescence, activate PDT, and simultaneously deplete GSH to reduce antioxidant defense. The resulting Cu+ catalyzes a Fenton-like reaction with endogenous H2O2 to generate •OH for CDT, while Ti3C2Tx acts as a catalase-like nanozyme, decomposing H2O2 into O2 to alleviate hypoxia, promote charge transfer, improve the utilization efficiency of photogenerated electrons, and enhance PDT efficacy. In vitro, the platform showed excellent biocompatibility and GSH-responsive activation, inducing 41.21% apoptosis in CAL-27 cells under 660 nm laser irradiation, significantly outperforming controls. In vivo, the nanocomposite accumulated efficiently in tumors via the EPR effect, suppressed tumor growth, and exhibited no observable systemic toxicity. This work provides a TME-responsive theranostic platform that integrates tumor-specific activation, GSH depletion, hypoxia alleviation, and enhanced ROS generation for precise and effective OSCC treatment.
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高影响因子
ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
Tibebu Shiferaw Kassa,Abdurohman Mengesha Yessuf,Ayenew Meniber Mihiretu,Minable Endaye Rass,Mohamedazeem M. Mohideen,Yong Liu
The rapid transition from 5G to 6G wireless technologies has led to a substantial increase in electromagnetic interference (EMI), posing significant challenges to device reliability, signal integrity, and human health. There is an urgent need for lightweight, flexible, and efficient absorption-dominant EMI shielding materials. In this study, we propose a rationally designed coaxial electrospinning strategy to fabricate hierarchical MXene/reduced graphene oxide/polyacrylonitrile core–shell nanofibers. This design integrates a conductive, MXene-rich core surrounded by a reduced graphene oxide/polyacrylonitrile outer shell, encouraging simultaneous optimization of electrical conductivity, impedance matching, and polarization loss to achieve superior EMI shielding performance and thermal blocking. Interestingly, when the reduced graphene oxide to MXene ratio was optimized to be 1:2, the resultant composite nanofiber revealed an EMI shielding effectiveness of 74.38 dB at X-band, a shielding efficiency of 99.99999635%, a high electrical conductivity (169.81 S·cm–1), and an outstanding specific shielding effectiveness of 2.54 × 104 dB·cm2·g–1. Additionally, the sample exhibited effective thermal insulation, with the surface temperature rising by only 41 °C after 1 min of exposure to a 75 °C heat source. These findings highlight the synergy between the high electrical conductivity of MXene, which enables strong internal reflection and ohmic loss, and the interfacial polarization of reduced graphene oxide, which fosters multiple internal reflections that enhance absorption. This optimized, absorption-dominated mechanism provides valuable guidance for designing next-generation lightweight and flexible EMI shielding materials for applications in aerospace, 5G/6G communications, and advanced electronic devices.
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高影响因子
JOURNAL OF POWER SOURCES
·
2026
·
IF 8.4
Jayandra Bushion,Nithesh Kumar Krishnan,Chih-Yu Kuo,Stalin Thambusamy,Mani Govindasamy,Gaber E. Eldesoky
Developing cost-effective and efficient bifunctional electrocatalysts is critical for sustainable hydrogen production via overall water splitting. Here, we report the rational design and synthesis of a gadolinium nitride-decorated Mxene (Gd-N/Ti 3 C 2 T x ) nanocomposite as a high-performance bifunctional electrocatalyst. The Gd-N/Ti 3 C 2 T x hybrid shows excellent activity toward both the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) under alkaline conditions. The optimized electrode exhibits low overpotentials of 315.2 mV for HER and 162.8 mV for OER at 10 mA cm −2 , with Tafel slopes of 142 and 234 mV dec −1 , respectively, indicating favorable kinetics. In a two-electrode alkaline water electrolyzer, Gd-N/Ti 3 C 2 T x achieves 10 mA cm −2 at a cell voltage of 1.74 V, outperforming individual Gd-N and Ti 3 C 2 T x electrodes. The system maintains stable operation at 10 mA cm −2 for 48 h with negligible voltage fluctuation. The enhanced performance arises from strong interfacial coupling between conductive Ti 3 C 2 T x layers and catalytically active Gd-N, which promotes rapid charge transfer, increases electrochemically active surface area, and facilitates reaction kinetics. This work demonstrates Gd-N/Ti 3 C 2 T x as an earth-abundant, durable, and efficient bifunctional electrocatalyst for overall water splitting.
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高影响因子
MICROCHEMICAL JOURNAL
·
2026
·
IF 5.2
Haozi Lu,Ziyi Wu,Meiqing Yang,Jifei Yang,Ye Li,Jingrui Zhang,Guangsheng Zeng,Can Hu,Wei Zhou,Song Liu
Hollow Ti 3 C 2 T x MXene nanospheres are synthesized via a sacrificial PS template to boost electroactive surface area. • The sensor achieves high AA sensing performance (0.394 μA·μM −1 , LOD 6.1 μM) covering sweat physiological concentration range. • A CNN-LSTM model is built to predict steady-state current using only 20 s transient chronoamperometric response. Real-time wearable health monitoring is frequently bottlenecked by the slow kinetic equilibrium of electrochemical sensors, which delays data acquisition and hinders high-frequency sampling. To bridge the gap between high sensitivity and rapid readout, this study presents a synergistic sensing strategy coupling hollow Ti 3 C 2 T x MXene nanospheres with a deep learning-enabled predictive algorithm for the detection of ascorbic acid (AA) in sweat. Structurally, the hollow Ti 3 C 2 T x spheres, synthesized via a sacrificial polystyrene template, provide a significantly enhanced electroactive surface area, achieving a high sensitivity of 0.394 μA·μM −1 and a limit of detection of 6.1 μM. Crucially, to resolve the trade-off between measurement accuracy and readout speed, a convolutional neural network–long short-term memory (CNN–LSTM) cascade model was constructed. The CNN–LSTM model predicted the 60 s reference current from the first 20 s transient response, reducing the effective readout time by approximately 67%. Real-sweat validation was further performed using samples collected from five volunteers after exercise, with each sample measured in triplicate. The AA concentrations calculated from the conventional 60 s current-based method ranged from 22.05 to 36.22 μM, while the CNN–LSTM-predicted concentrations showed relative errors of 3.12–11.04% compared with the conventional readout., This integration of advanced hollow nanostructures with transient-signal learning establishes a robust pathway for next-generation wearables requiring instantaneous bio-fluid analysis. Real-time wearable health monitoring is frequently bottlenecked by the slow kinetic equilibrium of electrochemical sensors, which delays data acquisition and hinders high-frequency sampling. To bridge the gap between high sensitivity and rapid readout, this study presents a synergistic sensing strategy coupling hollow Ti 3 C 2 T x MXene nanospheres with a deep learning-enabled predictive algorithm for the detection of ascorbic acid (AA) in sweat. Structurally, the hollow Ti 3 C 2 T x spheres, synthesized via a sacrificial polystyrene template, provide a significantly enhanced electroactive surface area, achieving a high sensitivity of 0.394 μA·μM −1 and a limit of detection of 6.1 μM. Crucially, to resolve the trade-off between measurement accuracy and readout speed, a convolutional neural network–long short-term memory (CNN–LSTM) cascade model was constructed. Unlike traditional methods that await steady-state current (∼60 s), this algorithm extracts deep temporal features from the initial 20 s of the transient chronoamperometric response to accurately forecast the final equilibrium signal. The model demonstrates exceptional predictive accuracy (deviation <2.8%) while reducing the detection latency by approximately 67%. Validated in human sweat samples (29.4 μM AA), this integration of advanced hollow nanostructures with transient-signal learning establishes a robust pathway for next-generation wearables requiring instantaneous bio-fluid analysis. Download: Download high-res image (117KB) Download: Download full-size image
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IONICS
·
2026
·
IF 3.4
Yan Yu,Sun Xiaofei,Yin Shiyu,Chang Qing,Huang Jie,Wang Bei,Le Qinyuan,Jiang Guodong
Cation-disordered rocksalt (DRX) cathodes have emerged as promising candidates for next-generation energy storage due to their high theoretical capacity and reliance on earth-abundant elements. However, their practical implementation is severely limited by inherently sluggish electrical conductivity and restricted Li + diffusion. In this study, we propose a facile structural engineering strategy by incorporating few-layer Ti 3 C 2 T x MXene, prepared via ball-milling, as a multifunctional conductive additive for Li 1.2 Mn 0.4 Ti 0.4 O 2 DRX cathodes. By synergistically coupling 2D MXene nanosheets with conventional 0D carbon black, a robust hierarchical “point-to-surface” conductive network is successfully constructed. Systematic electrochemical characterizations reveal that optimal MXene integration not only serves as a physical protective barrier but also provides accessible sites for transient lithium-ion storage, thereby collectively accelerating Li + /electron transport and mitigating interfacial polarization. Consequently, the optimized composite electrode with 20% MXene additive delivers a remarkably high initial discharge capacity of 203.7 mAh g − 1 at 0.1 C, substantially outperforming the pristine electrode (165.2 mAh g − 1 ), alongside markedly superior rate capability and structural reversibility. This work provides critical mechanistic insights into MXene-mediated modifications and offers a sustainable pathway for the design of high-performance Mn-based DRX cathodes.
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