COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
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IF 5.4
Ruilin Xie,Ruisheng Guo,Wenjing Ouyang,Chenyu Qiao,Jingyu Kang,Xuqing Liu
Two-dimensional MXene nanosheets have attracted considerable attention as lubricating fillers in polymer coatings owing to their excellent interlayer sliding and high tribofilm-forming capabilities. However, their aggregation within the polymer matrix and weak interfacial interactions hinder their ability to achieve high wear resistance. Existing modification strategies for MXenes (such as silane coupling or catechol-based modifications) frequently involve complex processes, toxic reagents, and/or specific chemical reaction environments, and the direct surface modification of MXene using lubricating agents for synergistic lubrication remains underexplored. Herein, we propose a mechano-assisted surface modification strategy to synthesize ionic liquid-functionalized MXene (MX-IL) using 1-aminopropyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide, a water-soluble ionic liquid (IL). The IL anchors to MXene nanosheets via Ti–N coordination bonds and electrostatic interactions, whereas its highly polar anions/cations and –NH 2 groups enhance the dispersibility and interfacial compatibility of MXene with waterborne epoxy resin, improving the storage modulus, adhesion strength, and hardness. This dual-action mechanism, involving the combination of the inherent weak interlayer shear strength of MXene with the strong adsorption effect of IL, considerably improves the tribological properties of nanocomposite coatings. Tribological tests reveal that incorporating 1.0 wt% MX-IL decreases the friction coefficient and wear rate of pure epoxy coating by 39.8 % and 84.5 %, respectively. The mechano-assisted IL modification eliminates the need for toxic reagents and intricate synthesis steps, offering a simple, ecofriendly approach for fabricating high-performance, self-lubricating polymer coatings. This study addresses critical challenges in MXene–polymer composite design and provides a foundational framework for the development of advanced lubrication materials via synergistic surface engineering.
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高影响因子
MICROCHEMICAL JOURNAL
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2025
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IF 5.1
Jing Chen,Wenli Xue,Yaqin Shi,Wenjing Liu,Rongfang Ma
Catechin is a natural flavonoid with antioxidant, anticarcinogenic and anti-inflammatory properties. They can be used to treat or prevent human health problems. However, excessive intake of catechin can also be harmful to the human body. It is crucial to find a method for quantitative detection of catechin. The carboxyl-functionalized multi-walled carbon nanotubes were intercalated into the MXene layers to form a composite material with excellent electrical conductivity, and then MOF-808 with adsorption sites was further loaded on MXene/MWCNTs-COOH to synthesize MXene/MWCNTs-COOH/MOF-808 with excellent catalytic properties. Based on this, an electrochemical sensor was constructed for the detection of catechin. The CA sensor constructed in this work exhibited excellent analytical performance, good linear range (0.5–21.53 μM) and low detection limit (0.05 μM). It was also used for the detection of CA in green tea and beverages, which exhibited good recoveries (99.46–99.71 % and 96.46 % ~ 101.33 %) and the relative standard deviations (1.33–2.55 % and 0.07 % ~ 1.57 %).
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Chang Su,Gongchen Ma,Mengfan Pei,Xin Jin,Yunpeng Qu,Shuo Zhuo,Borui Li,Wanyuan Jiang,Xigao Jian,Fangyuan Hu
Sodium-ion batteries (SIBs) demand anode materials that achieve both fast kinetics and high capacity. Ti 3 C 2 T x MXene exhibits great potential in SIB applications due to its excellent conductivity and abundant surface functional groups. However, challenges such as low specific capacity and sluggish Na + transport kinetics still remain. In this study, a novel conductive polymer engineered MXene composite was proposed. PEDOT: PSS was utilized to enhance the Na + storage capacity and kinetics simultaneously for MXene. Specifically, the sulfonate groups of PSS provide strong binding energy with Na + , facilitating the desolvation process. The PEDOT with abundant S/O atoms provides more active sites for Na + storage. Meanwhile, an efficient electron transport pathway was constructed relying on the delocalized electron, contributing to outstanding rate performance. By deeply experimental verification and theoretical calculations, an “adsorption-trapping” Na + storage mechanism was summarized in this composite. The electrode demonstrates a reversible capacity of 110 mAh g −1 maintained over 800 cycles at 1000 mA g −1 current density. This study provides new insights into the rational design of MXene-polymer composites and advances the application of polymeric materials in electrode systems.
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MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
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2025
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IF 4.6
Meng He,Xiaohui Lu,Yanyan Li,Yanfang Tao,Li Zhao,Yang Li
Perovskite solar cells (PSCs) suffer from a high density of defects at the buried bottom interface, which negatively impacts the efficiency in the PSCs and interface recombination. This is primarily due to carrier recombination losses occurring at the perovskite/SnO 2 . In this study, a two-dimensional lamellar V 2 CT x MXene materials, synthesized by hydrofluoric acid (HF) etching, was incorporated at the buried interface between the SnO 2 electron transport layer and the perovskite layer. The introduction of a V 2 CT x MXene modified layer at the perovskite/SnO 2 buried interface simultaneously modulates the crystallization and defect passivation within the perovskite material, leading to enhanced grain size and crystallinity. Consequently, highly efficient and stable PSCs were achieved. The presence of terminal group T x (OH − , F − ) in V 2 CT x facilitates the transfer of electrons to the 6p vacant orbitals of Pb 2+ ions, promoting the formation of Pb-F complexes. These complexes effectively suppress uncoordinated Pb ions at the perovskite interfaces, thereby significantly reducing defect density. As a result, the V 2 CT x -modified PSCs achieve an average power conversion efficiency (PCE) of 14.6 %, a notable improvement over the 12.8 % of the control devices, while also enhancing operational stability. This research provides a convenient and effective approach for enhancing crystallization and passivation defects in perovskite films, thereby improving device efficiency and stability.
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高影响因子
JOURNAL OF MATERIALS SCIENCE
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2025
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IF 3.9
Zhang Lei,Cao Xueting,Xin Qingping,Ding Xiaoli,Jin Huimin,Chen Hao,Chu Qingquan,Du Yifei,Huang Wei,Zhang Ruihua,Bao Shiya,Zhang Yuzhong
In this study, a top-down etching method is used to obtain MXene nanosheets with an accordion-like structure, and the surface of the MXene nanosheets is functionalized with 3-aminopropyltriethoxysilane to obtain functionalized MXene nanosheets (f-MXene), which is combined into polyethylene oxide (PEO) copolymer matrix for fabricating mixed matrix membranes (MMMs). The f-MXene nanosheets enhance the CO 2 /N 2 separation performance of membranes in multiple ways. Firstly, the accordion-like structure of f-MXene increases the channel for rapid gas transport. Secondly, the two-dimensional sheet-shaped material has a high aspect ratio, which effectively weakens the interaction between polymer chains and inhibit crystallization. This increases free volume for molecular transport and helps improve gas permeability. Thirdly, the amino group can react reversibly with CO 2 , improving reaction selectivity, and facilitates CO 2 transport. Therefore, the PEO/f-MXene membrane exhibits excellent CO 2 permeability and CO 2 /N 2 selectivity. To explore more efficient separation technology, the membrane separation performance at low-temperature is investigated. At − 20 °C, the PEO/f-MXene-3% membrane has a CO 2 permeability of 47.8 Barrer and a CO 2 /N 2 selectivity of 280.9, which is 576.9% higher than that at 35 °C, exceeding the latest upper bound. Graphical
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CERAMICS INTERNATIONAL
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2026
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IF 6
Chenghong Zhang,Kang Qiu,Jusen Guo,Linchen Hu,Chao Sun,Yikang Qiang,Wei Ding,Wei Wang,Jialiang Luo,Guoxing Pan,Zhigao Sheng
Achieving precise orientation control of two-dimensional (2D) materials remains a significant challenge for tailoring their electromagnetic functionalities. Herein, we report, for the first time, the successful fabrication of in-plane oriented Ti 3 C 2 T x MXene/epoxy (EP) composites via a high-intensity horizontal-rotating magnetic field. By systematically varying the magnetic field intensity from 0 to 6 T, the orientation degree of Ti 3 C 2 T x nanosheets can be continuously and precisely tuned, reaching a remarkably high value of 0.74. This process establishes a direct and quantitative correlation between the magnetic field strength and the resulting structural alignment. The magnetically induced orientation leads to a dramatic enhancement in key electromagnetic parameters, including complex permittivity, electrical conductivity, attenuation constant, and impedance optimization, all of which exhibit quantifiable relationships with the applied field. Consequently, this controlled alignment translates into extraordinary functional performance. The optimally aligned composite demonstrates a remarkable 5-fold improvement in GHz microwave absorption and a significant 44.9% enhancement in THz shielding efficiency compared to its non-oriented counterpart. This work pioneers a magnetic-field strategy to manipulate 2D microstructure, establishing quantitative structure-property relationships and paving the way for next-generation electromagnetic absorption and shielding composites.
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JOURNAL OF MEMBRANE SCIENCE
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2026
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IF 8.8
Wenjuan Zhang,Qiaohong Zhang,Yuheng Li,Chunli Liu,Youliang Wang,Panpan Zhang,Hanhong Xu
The separation of salts and heavy metal ions from wastewater is crucial for environmental protection and resource recovery. Lamellar membranes assembled from 2D nanoflakes have emerged as promising candidates due to their high selectivity and permeability. Here, we reported the fabrication of Metal Ion Cage MXene membranes with enhanced anti-swelling properties using a dual-modification strategy involving K + intercalation and polyethyleneimine (PEI) functionalization. The resulting membranes exhibited excellent structural stability in aqueous solutions, along with outstanding separation performance. The membranes achieved a maximum CR rejection rate of 98.7%, with divalent ions such as Ca 2+ , Cu 2+ , and Pb 2+ being rejected at rates exceeding 80%, alongside a water flux of ∼38.22 L m −2 h −1 . Mechanistic analysis revealed that K + intercalation enhanced interlayer interactions and limited swelling, while PEI modification strengthened electrostatic repulsion and stabilized the membrane structure. This synergistic strategy provided new insights into the structural design of stable 2D membranes and broadens their applicability in sustainable water treatment technologies.
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Journal of Physical Chemistry C
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2026
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IF 3.4
Hao Peng,Yanan Zhang,Dong Li,Hongxing Chen,Fengxia Geng
Ti3C2Tx holds great promise as an electrode material for high-capacitance supercapacitors, owing to its large specific surface area, pseudocapacitive behavior, and excellent electrical conductivity. However, the commonly used MILD synthesis method based on HCl/LiF etching introduces electrochemically inert −F terminations, which hinder ion storage and make the surface prone to oxidation. In this work, we report a modified MILD etching protocol using a significantly reduced LiF concentration under hydrothermal conditions at elevated temperatures. The lower LiF concentration and the higher etching temperature promote the formation of −O and minimize −F surface terminations. The resulting Ti3C2 film exhibits far fewer −F terminations than conventional films (Ti3C2–O1.37(OH)0.35F0.36·0.35H2O vs Ti3C2–O0.96(OH)0.39F0.75·0.47H2O). The oxygen-rich Ti3C2 film allows for enhanced proton-coupled electron transfer and reversible redox reactions in H2SO4, thus delivering a gravimetric capacitance of 511 F g–1 at 1 A g–1, 1.61 times higher than its counterpart obtained by conventional MILD method. The film retains 93.6% capacitance at 20 A g–1 and shows no performance degradation over 10,000 cycles. When assembled in asymmetric configuration with activated carbon, the device achieves a maximum energy density of 25.0 Wh kg–1 at 375 W kg–1 and maintains 15.4 Wh kg–1 at a high power density of 15,000 W kg–1. Devices with gel electrolyte also show good performance under practical conditions, including in parallel and series configurations as well as under bending deformation. This study presents a scalable strategy to tailor MXene surface chemistry for high-energy, high-power energy storage applications.
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ACS Applied Materials & Interfaces
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2026
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IF 7.8
Jiawang Zhou,Xuejiao Xu,Yangchenyi Wu,Wanliang Yang,Fuzhong Wu
Silicon is among the most promising anodes for high-energy lithium-ion batteries due to its ultrahigh theoretical capacity; however, its catastrophic volume fluctuations and interfacial instability remain the primary obstacles to practical application. Here, we report a covalently integrated MXene-infiltrated porous silicon (MPSi) architecture that simultaneously delivers mechanical resilience, electronic continuity, and interfacial stability. Distinct from conventional surface-coating designs, few-layer Ti3C2Tx MXene nanosheets are driven deep into micron-scale porous silicon via ethanol-assisted wetting and vacuum-impregnation, forming a three-dimensional conductive network throughout the entire particle interior. Subsequent mild annealing induces dehydration condensation between Si–OH and Ti–OH groups, creating robust Si–O–Ti bonds that chemically anchor MXene to the silicon framework. This confinement-induced interfacial chemistry effectively suppresses MXene delamination, regulates solid electrolyte interphase evolution, and ensures long-range charge transport even under repeated volumetric expansion. Benefiting from the synergistic contributions of hierarchical internal voids, embedded MXene pathways, and covalent interfacial adhesion, the MPSi anode achieves high reversible capacity (906.3 mAh g–1 after 300 cycles at 1 A g–1), excellent rate capability (543.3 mAh g–1 at 5 A g–1), and improved initial Coulombic efficiency. Furthermore, the practical viability of this architecture is validated in full cells paired with NCM811 cathodes, which exhibit stable cycling with 80.2% capacity retention after 200 cycles. Detailed kinetic analysis further reveals dominant pseudocapacitive behavior enabled by the MXene-reinforced porous network. This work establishes an infiltration-driven, covalently bonded MXene-Si architecture that addresses both mechanical and electrochemical degradation of silicon anodes, offering a scalable strategy toward next-generation high-energy lithium-ion batteries.
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PubMed
高影响因子
Journal of Energy Storage
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2026
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IF 10.7
Zhen Yao,Qi Fan,Xinyu Lu,Zhuangchun Jian,Mengchen Li,Xu Yao,Yining Zhang,Junwei Luo,Gang Li,Jigang Wang,Anyang Yu,Tianshuo Zhao,Qingyu Xu,Yueming Sun
Ti 3 C 2 T x MXene is promising for energy storage due to its 2D layered structure and large interlayer spacing. However, it suffers from limited capacity, severe sheet restacking, and detrimental surface F groups that exacerbate side reactions, leading to poor rate performance and cycling stability. Herein, we employ surface chemical engineering to replace surface F with -OH groups on Ti 3 C 2 T x MXene, effectively suppressing interfacial side reactions, lowering interfacial impedance, and enhancing Li + transport. Furthermore, the hydrolysis reaction and self-assembly anchor SnO 2 clusters (CLs) onto the Ti 3 C 2 MXene interface, inhibiting nanosheet restacking, maintaining Li + diffusion channels and active sites while contributing to capacity. With these synergistic effects, the prepared SnO 2 CLs/MXene heterostructure delivers a high reversible capacity of 914.5 mAh g −1 at 0.05 A g −1 , 476.3 mAh g −1 at 2 A g −1 , and retains 88.6% capacity after 500 cycles at 2 A g −1 , with negligible capacity decay observed at 100 mA g −1 over 500 cycles.
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Advanced Science
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2026
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IF 14.1
Hui Zhao,Shuai Li,Jiabei He,Tong Gao,Jingfeng Wang,Dongxiao Kan,Wangtu Huo,Lixin Chen
Lightweight and flexible porous MXene films have emerged as promising candidates for electromagnetic interference (EMI) shielding and infrared stealth. However, current foaming techniques remain a challenge in preserving the intrinsic properties of MXene while achieving eco-friendly foaming. Herein, supercritical CO 2 foaming technology is employed to realize the green foaming of dense MXene films without compromising the inherent structure of the MXene nanosheets. The phase transition of supercritical CO 2 induces bubble nucleation and growth, effectively unfolding the stacked MXene nanosheets into a porous architecture. This strategy is broadly adaptable and can also be extended to other two-dimensional (2D) films, such as graphene oxide. Benefiting from highly-conductive porous skeleton, the foamed porous MXene film exhibits an EMI shielding effectiveness of ∼73.2 dB, which is 21% higher than that of the pristine MXene films. Furthermore, its absolute shielding effectiveness attains 23160 dB·cm 2 /g, surpassing most previously reported MXene-based porous materials. Notably, the porous MXene films also demonstrate excellent infrared thermal camouflage performance across a broad temperature window. This work not only offers an insight for the foaming of 2D MXene materials but also highlights the considerable engineering prospects of porous MXene films in the field of safety protection.
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DOI
PubMed
高影响因子
SURFACE & COATINGS TECHNOLOGY
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2026
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IF 6.9
Jing Xu,Fengxiang Zhou,Hangqing Xie,Tie Zhang,Jiadi Lian
Photothermal superhydrophobic coatings have been recognized as a promising strategy for preventing ice accretion on industrial infrastructures. However, their practical deployment is often limited by mechanical fragility and performance decay under harsh icing conditions. Herein, we report a robust anti-icing coating- denoted as MSP (MXene-F-SiO 2 -PEEK). In this system, MXene acts as a nanoscale photothermal furnace, enabling rapid surface heating under illumination, while F-SiO 2 constructs a hierarchical micro/nanostructure that impairs ice nucleation through exceptional water repellency. The synergistic interplay between the photothermal effect and superhydrophobicity results in a remarkable freezing delay—three times longer than that of bare stainless steel—and enables rapid deicing within 181 ± 4 s under 0.2 kW/m 2 illumination. Moreover, the intrinsic self-lubricating property of MXene and the robust adhesion provided by the PEEK matrix collectively endow the coating with outstanding mechanical durability, maintaining its performance after extensive abrasion. This MSP coating strategy offers a promising and scalable solution for combating ice accretion and providing lubrication in dynamic systems, such as mechanical joints, operating under demanding low-temperature and high-humidity conditions.
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