Physica Status Solidi-Rapid Research Letters
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2026
·Vol. 20
·期 2
·e202500429
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IF 2
Zhixing Chen,Xingyue Zhang,Yiting Wang,Xi Wang,Sheng Li,Yuanming Zhou,Fei Mei
Perovskite light-emitting diodes (PeLEDs) have considerable potential for high performance, but their practical applications are limited by surface defects and mismatches in energy levels, which require advanced interface materials to be resolved. In this study, an interfacial modification strategy using Ti 3 C 2 T x -based heterostructures was proposed. Graphene oxide (GO) and molybdenum disulfide (MoS 2 ) were respectively composited with Ti 3 C 2 T x to construct Ti 3 C 2 T x -GO and Ti 3 C 2 T x -MoS 2 heterostructures, which were subsequently introduced as interlayers between the hole transport layer (HTL) and the emissive layer (EML) of PeLEDs. Moreover, the optoelectronic performance of the resulting PeLEDs was systematically investigated. A maximum luminance of 7314 cd/m 2 and a maximum current efficiency of 7.09 cd/A were achieved by PeLEDs when integrated with the Ti 3 C 2 T x -GO heterostructure. By contrast, those incorporating the Ti 3 C 2 T x -MoS 2 heterostructure exhibited a maximum luminance of 7888 cd/m 2 and a maximum current efficiency of 7.79 cd/A. This improvement could be attributed to the introduction of Ti 3 C 2 T x -based heterostructures, which served to both passivate surface defects in the perovskite EML and promotes charge transport. Overall, this study confirms the unique advantages of MXene-based materials in the regulation of perovskite optoelectronic devices, providing a theoretical and technical basis for their wider use in photovoltaics and optoelectronics.
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高影响因子
Frontiers in Chemistry
·
2022
·
IF 5.545
Yu Wu,Aiping Lin,Jidi Zhang,Danjiao Zhao,Lanlan Fan,Cheng Lu,Shufen Wang,Lei Cao,Feng Gu
When utilized in energy devices, the restacking tendency of MXene Ti3C2Tx inhibits its electrochemical performance. Using aerosol jet printing (AJP) technology, hybrid Ti3C2Tx/C nanospheres are synthesized with C nanoparticle-bonded MXene nanosheets, and the restacking of MXene nanosheets is blocked efficiently. The formation mechanism for hybrid Ti3C2Tx/C nanospheres has been hypothesized, and the Ti3C2Tx/C is anticipated to assemble and shape along the droplet surface in tandem with the Marangoni flow within the droplet. The planar microsupercapacitor devices generated from these hybrid spherical nanostructures with increased interlayer spacing exhibit exceptional areal capacitance performance. This concept offers a straightforward and effective method for constructing 3D-structured MXene with suppressed self-stacking for diverse high-performance micro energy storage devices.
研究领域:
材料科学
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纳米技术
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电化学
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能源存储
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微电子器件
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2017
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IF 4.233
Qishan Fu,Xinyu Wang,Na Zhang,Jing Wen,Lu Li,Hong Gao,Xitian Zhang
Two-dimensional titanium carbide has gained considerable attention in recent years as an electrode material for supercapacitors due to its high melting point , good electrical conductivity , hydrophilicity and large electrochemically active surfaces. However, the irreversible restacking during synthesis restricts its development and practical applications. Here, Ti 3 C 2 T x /SCNT self-assembled composite electrodes were rationally designed and successfully synthesized by introducing single-walled carbon nanotubes (SCNTs) as interlayer spacers to decrease the restacking of the Ti 3 C 2 T x sheets during the synthesis process. SCNTs can not only increase the specific surface area as well as the interlayer space of the Ti 3 C 2 T x electrode, but also increase the accessible capability of electrolyte ions , and thus it improved the electrochemical performance of the electrode. The as-prepared Ti 3 C 2 T x /SCNT self-assembled composite electrode achieved a high areal capacitance of 220 mF/cm 2 (314 F/cm 3 ) and a remarkable capacitance retention of 95% after 10,000 cycles.
研究领域:
材料科学
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电化学
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纳米科技
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能源存储
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功能材料
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Advanced Materials Interfaces
·
2020
·Vol. 7
·期 6
·1901839
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IF 4.948
Yang Hu,Lin Wang,Tingrui Lin,Na Zhao,Mengni Shi,Jing Peng,Jiuqiang Li,Weiqun Shi,Maolin Zhai
As a new family of 2D materials, MXenes have already shown a broad application prospect in energy storage. However, the inevitable restacking of MXene nanosheets always limits their performance. Here, a facile and environmentally friendly approach is developed to fabricate self-assembly Ti 3 C 2 T x MXene (named SA-Ti 3 C 2 T x ) via γ-irradiation. The absorbed dose has obvious influence on the self-assembly of SA-Ti 3 C 2 T x by changing the surface charge characteristics and groups to make the nanosheets assembled into large slices with different structure. At dose of 20 kGy, radiation-synthesized SA-Ti 3 C 2 T x (SA-Ti 3 C 2 T x -20) possesses the crumpled structure which exhibits larger specific surface area, enhanced conductivity, and larger specific capacitance, compared with those of original Ti 3 C 2 T x . SA-Ti 3 C 2 T x -20 also shows excellent rate performance and cycling stability. This study paves the way for the modification and assembly of MXenes with improved electrochemical performance.
研究领域:
材料科学
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电化学
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纳米科技
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能源存储
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高分子化学
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表面科学
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高影响因子
Journal of Energy Storage
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2026
·
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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POLYMER ENGINEERING AND SCIENCE
·
2026
·
IF 3.6
Lilan Liao,Xiang Chen,Yekun Lv,Shilong Gu,Xuwang Ye,Xianze Yin,Shiwen Yang,Luoxin Wang
Electrospun nanofiber membranes are highly efficient materials for oil–water separation, but the development of membranes with high purification efficiency, durability, and multifunctionality still faces huge challenges. Here, Ti 3 C 2 T X MXene-like fluids (MXfs) were prepared by ion-exchange reaction, using Ti 3 C 2 T X MXene as the nucleus and silanized quaternary ammonium salts and poly (oxyethylene ether) long chains as the bimolecular organic shell layer. The Janus fiber membrane with opposite surface wetting properties on both sides of PAN/MXfs-PVDF was prepared by mixing with PAN and PVDF solutions using the electrostatic spinning technique. The organic long chains on the surface of MXfs have obvious emulsifying effects, and the results show that the Janus fiber membrane exhibits high separation flux (1449.6 L m −2 h −1 ) and separation efficiency (> 95%) in the oil–water emulsion separation process. In addition, after several cycles, the Janus fiber membrane still maintains good cycling stability, and the flux of oil–water emulsion is maintained at 83% ~ 92% of the original flux, and the cycling efficiency is still not less than 95%, which is excellent in the field of oil–water separation and related applications. Highlights MXene NFs with good dispersion and processability successfully obtained. Janus fiber membrane fabricated via electrostatic spinning for oil–water separation. Membrane shows high separation flux (1449.6 L m −2 h −1 ) and efficiency (> 95%). Good cycling stability with high flux and efficiency after multiple cycles.
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RARE METALS
·
2026
·Vol. 45
·期 5
·e70342
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IF 12.1
Chu-Qiao Hu,Qi-Cheng Duan,Yu-Meng Bai,Guang-Li Zhang,Zhe Zhang,Pei-Lun Qiu,Di Wu,Ce Fu,Jian-Qiao Liu,La Li,Guo-Zhen Shen
en This link goes to a English section zh This link goes to a Chinese section Ti 3 C 2 T x MXene, with its exceptional electrical conductivity, mechanical flexibility, and processability, compatible with wearable and integrated systems, plays a crucial role in advancing flexible photodetectors for intelligent perception systems and bioinspired artificial vision. However, its intrinsic narrow bandgap (< 0.1 eV) and the limited diversity of surface functionalization strategies severely constrain its use as a photosensitive layer in photodetectors. Herein, a surface engineering strategy is developed to covalently graft aminopropyl groups onto the surface of Ti 3 C 2 T x via Si-O-Ti linkages, thereby successfully widening its bandgap to 1.46 eV. The resulting Au/Ti 3 C 2 T x -NH 2 /Au flexible photodetector exhibits excellent bending resistance and demonstrates an ultrahigh on–off ratio of 10 12 under 808 nm laser excitation, along with an excellent responsivity of 3.72 × 10 4 A W −1 and high specific detectivity of 1.03 × 10 18 Jones. Additionally, the fabricated 147-pixel image sensor achieves high-contrast imaging of the “MAX” pattern, providing a new pathway for advancing high-performance flexible near-infrared photodetector technologies in bioinspired vision and flexible wearable image sensing. 摘要 en This link goes to a English section zh This link goes to a Chinese section 凭借其优异的导电性、机械柔韧性以及与可穿戴和集成系统兼容的加工性能,Ti 3 C 2 T x MXene在推动面向智能感知系统和仿生人工视觉的柔性光电探测器发展中发挥着重要作用。然而,其本征窄带隙(< 0.1 eV)以及表面功能化策略的多样性不足,严重限制了其作为光敏层在光电探测器中的应用。为此, 本文开发了一种表面工程策略,通过Si-O-Ti键将氨丙基共价接枝到Ti 3 C 2 T x 表面,成功将其带隙拓宽至1.46 eV。所制备的Au/Ti 3 C 2 T x -NH 2 /Au柔性光电探测器在808 nm激光激发下表现出优异的抗弯折性能、高达10 12 的超高开关比、3.72 × 10 4 A W −1 的出色响应度以及1.03 × 10 18 Jones的高比探测率。此外,所制造的147像素图像传感器实现了对“MAX”图案的高对比度成像,为在仿生视觉和柔性可穿戴图像传感领域推动高性能柔性近红外光电探测器技术的发展提供了新途径。
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Lubrication Science
·
2026
·
IF 2.1
Wenjun Yu,Juan Du,Yao Tan,Xiaoqiang Fan
In view of the promising application potential of two-dimensional MXenes (Ti 3 C 2 T x ) in lubrication, along with the challenge of their poor dispersibility in non-polar base oil, this work reports the surface functionalisation of Ti 3 C 2 T x through the covalent grafting of alkylphosphonic acid (TDPA). TDPA grafting converts the surface properties of Ti 3 C 2 T x from polar to non-polar, significantly enhancing its dispersion stability in non-polar PAO20 base oil. Tribological performance tests showed that as an additive, TDPA-Ti 3 C 2 T x improved the anti-wear performance of PAO20 by 38.1%. Its excellent performance is mainly attributed to the high mechanical strength, easy interlayer shear characteristics of the modified nanosheets, and the synergistic effect of the protective tribochemical film formed in situ during the friction process. The TDPA functionalisation strategy is an effective way to realise the efficient application of Ti 3 C 2 T x in non-polar lubricating systems, and provides a new idea for the design of high-performance lubricating additives.
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高影响因子
ACS Applied Materials & Interfaces
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2026
·
IF 7.8
Yang Zhao,Lulu Fu,Zihao Guan,Lu Chen,Zhipeng Huang,Weiqian Tian,Mahiar Max Hamedi,Mark G. Humphrey,Chi Zhang
Ultrafast interfacial charge transfer in functionalized two-dimensional semiconductors enables precise modulation of their optical and electronic properties. Herein, we report the axial integration of a triply fused porphyrin dimer (TFP) onto few-layer MXene (Ti3C2Tx) nanosheets via a stepwise covalent strategy comprising initial pyridine anchoring followed by metal-coordination-driven TFP assembly. Z-scan measurements conducted under nanosecond (532 nm) and femtosecond (800 nm) laser excitation both reveal significantly enhanced nonlinear optical absorption relative to the pristine constituents. This enhancement is mainly attributed to the photoinduced charge transfer from the TFP donor to the Ti3C2Tx acceptor matrix, as corroborated by steady-state and transient absorption spectroscopy in conjunction with theoretical calculations. Beyond the demonstration of a high-performance optical limiter, this work establishes a molecular-level design paradigm for engineering interfacial electronic coupling in hybrid two-dimensional architectures subjected to intense optical fields.
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PubMed
高影响因子
Nano-Micro Letters
·
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
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
·
2026
·
IF 16.8
Xinrui Li,Xiaoqiang Fan,Yihan Zhang,Minhao Zhu
An interfacial energetic hierarchy governs IL-Ti 3 C 2 T x boundary lubrication. • Termination-driven energetic inversion decouples anchoring and retention. • Retention is governed by Ti 3 C 2 T x -metal coupling rather than cation anchoring. • IL-Ti 3 C 2 T x reduces wear by 61% at 0.05wt.% via a stable tribofilm. The effectiveness of two-dimensional additives in boundary lubrication is often limited by poor dispersion stability and unstable low-shear interfaces in polar lubricants. Here, we report an ionic liquid (IL)-enabled interfacial-engineering strategy that couples surface anchoring with shear regulation at Ti 3 C 2 T x MXene interfaces. Density functional theory (DFT) calculations suggest that the imidazolium cation acts as the primary anchoring motif, showing strong, termination-sensitive binding to Ti 3 C 2 T x surface terminations, while the alkyl chain extends toward the counterface and may provide a molecular basis for an organic shear-accommodating overlayer. First-principles calculations further indicate a termination-dependent interfacial interaction trend, in which the calculated stability of the composite layer on steel is more closely associated with Ti 3 C 2 T x -Fe electronic coupling than with cation-Ti 3 C 2 T x anchoring. This trend provides a possible mechanistic basis for reconciling interfacial persistence with low shear resistance. Accordingly, IL-modified Ti 3 C 2 T x reduces wear by up to 61% at an ultralow concentration of 0.05wt.%. Tribochemical and cross-sectional TEM analyses support the formation of an 8.5 nm continuous composite tribofilm enriched with IL- and Ti 3 C 2 T x -derived species, consistent with reduced direct steel exposure during sliding. These findings offer design concepts for two-dimensional additives in polar lubricants. Download: Download high-res image (244KB) Download: Download full-size image
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MATERIALS CHEMISTRY AND PHYSICS
·
2026
·
IF 5.2
Xiaofei Yan,Chunlan Feng,Yehua Shao,Jie Fang,Jiawei Li,Jianghua Wu,Hua Shen
Silk is a natural protein fiber whose multifunctional properties can be endowed through functional modification or incorporation of functional nanoparticles into regenerated silk fibroin (RSF). In this study, a synergistic modification strategy was proposed to fabricate high-performance RSF/TA/Ca 2+ /MXene composite films by combining tannic acid (TA) deposition, Ca 2+ -induced conformational transition, and two-dimensional MXene nanosheet reinforcement. FTIR and synchrotron radiation WAXD analyses revealed that the β-sheet content induced by Ca 2+ was significantly increased from 32.62% (pure RSF), while the introduction of MXene further optimized the β-sheet content to 41.75% (20% MXene). TGA results demonstrated that the thermal stability of the composite films improved with increasing MXene content, with the residual mass at 600 °C increasing from 30.07% (pure RSF) to 41.75% (20% MXene). Tensile tests showed that the tensile strength of the composite films was significantly enhanced, while the elongation at break decreased accordingly. This work elucidates the synergistic regulation mechanism of TA/Ca 2+ /MXene on the secondary structure and thermomechanical properties of silk fibroin, providing a new strategy for the development of high-performance silk-based functional materials.
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