APPLIED SURFACE SCIENCE
·
2026
·
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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DOI
高影响因子
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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DOI
高影响因子
FIBERS AND POLYMERS
·
2026
·
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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DOI
高影响因子
ELECTROCHIMICA ACTA
·
2025
·
IF 5.6
Denghui Yang,Yan Wang,Xinhao Liu,Yifang Gao,Ying Chen,Guiying Tian,Songbo Wang,Lei Zhang,Na Tang
MXenes have emerged as promising support materials for Pt nanoparticles due to their large surface area and exceptional conductivity, which can substantially reduce Pt loading while enhancing hydrogen evolution reaction (HER) activity per unit mass of Pt. Consequently, structural optimization of MXenes to simultaneously improve Pt atomic utilization efficiency and interfacial stability has become a critical research focus. This study presents a novel strategy utilizing Ti 3 C 2 T x MXene with engineered Ti vacancies as a support for synthesizing Pt@MXene (PMX- x ) electrocatalysts through a self-reduction stabilization process. Electron paramagnetic resonance (EPR) and X-ray photoelectron spectroscopy (XPS) analyses reveal the presence of Ti vacancies in the MXenes structure at varying concentrations, which are significantly reduced or eliminated upon Pt incorporation, accompanied by strong interactions between Pt and MXenes. Density functional theory (DFT) calculations demonstrated that Pt atoms occupied Ti vacancy sites and achieved optimal hydrogen adsorption free energy (ΔG H* = -0.38 eV), and finally leading to a significantly improved HER kinetics. As a result, the optimized catalyst exhibited superior electrochemical performance in 0.5 M H 2 SO 4 , which was 16.8-fold in Pt mass activity (5.05 A mg·Pt −1 at η = -75 mV) compared to commercial Pt/C (0.30 A mg·Pt −1 at η = -75 mV). This vacancy-mediated anchoring strategy establishes a new paradigm for designing high-efficiency, low-Pt electrocatalysts and demonstrates promising potential for industrial applications.
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DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2022
·
IF 5.304
Yong Zhao,Yixuan Xia,Juerui Zhang,Hongde Liu,Yinhui Yi,Gangbing Zhu
In this work, based on the unique self-adsorption and reduction capacities of Ti 3 C 2 T x MXenes toward silver ion, silver nanoparticles (Ag NPs) as reference probe are synthesized and immobilized on the surface of Ti 3 C 2 T x nanoribbons (Ti 3 C 2 T x R) to form Ag-Ti 3 C 2 T x R nanohybrid with a simple stirring-method, and carbon nanotubes (CNTs) are introduced to conjugate Ag-Ti 3 C 2 T x R for inhibiting their aggregation and improving further the sensing performance. Via selecting paracetamol (PA) as a model analyte, a ratiometric voltammetric sensing strategy is proposed by using Ag-Ti 3 C 2 T x R/CNTs as electrode materials on the basic of the collaborative advantages of Ag NPs, Ti 3 C 2 T x R and CNTs: in the absence of PA, Ag-Ti 3 C 2 T x R/CNTs modified electrode displays only an electrochemical signal from the oxidation of Ag 0 ; while in the presence of PA, a varied signal of PA along with its concentration can be observed coupled with a quite stable oxidation signal of Ag 0 . Based on this principle, a highly sensitive and reliable ratiometric sensing platform is designed for PA detection by recording the ratio of signals between PA and Ag 0 . It’s expected that this work exploits a new research field in electrochemical sensors by combining the synthetic advantages of MXenes and metal elements.
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高影响因子
JOURNAL OF SOLID STATE CHEMISTRY
·
2022
·
IF 3.656
Yue Chen,Shaobin Li,Li Zhang,Tao Jing,Jianxin Wang,Lijie Zhao,Fengbo Li,Chao Li,Jingyu Sun
Rational design and constructed new electrode material as high performance electrochemical sensor with outstanding selectivity, reproducibility and stability is an urgent demand for trace detection. Herein, a novel Ce-MOF/Ti 3 C 2 T X MXene composite as electrochemical sensor for L-Tryptophan (L-Trp) was constructed by utilizing the three-dimensional straw-sheaf-like Ce-MOF and Ti 3 C 2 T X MXene nanosheets . The combination of Ce-MOF and Ti 3 C 2 T X MXene not only significantly improves the conductivity of metal-organic framework (MOF) but also effectively prevents the stacking of Ti 3 C 2 T X MXene nanosheets. The electrochemical properties of the proposed sensor were investigated by electrochemical techniques in detail. The L-Trp sensor exhibits a wide linear range (0.2 μM–139 μM) and a low limit of detection (0.19 μM, S/N = 3). Moreover, the proposed sensor exhibits excellent selectivity, good reproducibility and long-term stability, as well as satisfactory practical ability in real blood serum samples.
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DOI
高影响因子
COMPOSITES PART B-ENGINEERING
·
2022
·
IF 11.322
Feng Yang,Junru Yao,Liqiang Jin,Wenjun Huyan,Jintang Zhou,Zhengjun Yao,Peijiang Liu,Xuewei Tao
Nowadays, multifunctional electromagnetic (EM) wave absorbing aerogels have attracted much attention due to intelligent and wearable features for electronic devices. However, the utilization of these aerogels at elevated temperature is still challenge. Herein, we describe a robust strategy to fabricate architecturally controllable and multifunctional Ti 3 C 2 T X MXene/aramid nanofiber (ANF)/polyimide (PI) aerogels with desirable EM wave absorption, adjustable mechanical property, and high thermal insulation . Rational structural design endows the aerogels with an effective absorption bandwidth (EAB) of 4.2 GHz (covering whole X-band) at 250 °C. Exploration of the temperature response over 25–250 °C reveals that the microstructure characters of the aerogels contribute substantially to the EM parameters at elevated temperature, while the in-depth temperature-dependent mechanisms of aerogel EM performance are well studied. Further, through regulating the microstructure, the MXene/ANF/PI aerogels also exhibit tunable mechanical performance (maximum compressive stress of 334.3 KPa at 40% compression) and promising thermal insulation performance (0.029 ± 0.003 W mK −1 , closing to air). These multifunctional aerogels light the way to potential application in the EM wave absorption field of flexible devices at elevated temperature.
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高影响因子
ACS Sustainable Chemistry & Engineering
·
2021
·
IF 8.198
Lin Yang,Baoning Wang,Chunxiang Dall’Agnese,Yohan Dall’Agnese,Gang Chen,Ajay Kumar Jena,Xiao-Feng Wang,Tsutomu Miyasaka
Tuning the electrical conductivity of two-dimensional (2D) MXenes by modifying the termination groups and controlled oxidation offers great potential for photovoltaic applications. Here, in-situ-oxidized Ti3C2Tx (O–Ti3C2Tx) MXene was introduced to form a nanoscale heterojunction with SnO2 that was applied as an electron transport layer (ETL) in a MAPbI3 perovskite solar cell (PSC). Taking advantage of the transition from metallicity to semiconductivity during the oxidation process of Ti3C2Tx, the properties of Ti3C2Tx could be tuned to have its energy levels well matched with the perovskite. Besides, the insertion of O–Ti3C2Tx improved the electron mobility of the SnO2 ETL. Hence, the O–Ti3C2Tx/SnO2 heterojunction offered better electron extraction and reduced recombination between the ETL and the perovskite, thus rendering an increase of the power conversion efficiency (PCE) from 17.68% to 20.09% and enhancement of stability in air.
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DOI
高影响因子
COMPOSITES PART B-ENGINEERING
·
2021
·
IF 9.078
Bingxue Huang,Zehang Zhou,Lingfei Wei,Quancheng Song,Weiye Yu,Yi Zhou,Rui Hu,Wei Zhang,Canhui Lu
Stereolithographic 3D printing has been increasingly applied in the rapid fabrication of gels with specially-designed 3D structures. Herein, MXene (Ti 3 C 2 T x ) is reported for the first time as a versatile photo blocker for a photo-curable aqueous ink for a newly developed stereolithography technology (Continuous Liquid Interface Production, CLIP) to fabricate hydrogels with delicate geometries. As an effective photo blocker, the MXene nanosheets can significantly suppress the light scatting in the hydrogel precursor ink during CLIP printing, giving rise to printing quality. Subsequent solvent exchange with glycerin produces an organogel, which shows excellent adhesive properties towards various surfaces, making it a promising adhesive sensor to detect different body movements. Meanwhile, the CLIP-printed organogel demonstrates promise in atmospheric water harvesting taking advantage of the natural hygroscopicity of organogel and excellent light-to-heat conversion performance with MXene nanosheets. Furthermore, the CLIP-printed hollow organogel shows higher efficiency benefiting from larger surface area of hollow organogel. The results of this work strongly suggest that MXene can serve as an effective multifunctional additive for CLIP inks, which may open up new opportunities for the 3D printing of various advanced devices.
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DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2021
·
IF 8.128
Jiajia Liu,Yan Zhang,Wenhua Cheng,Shijun Lei,Lei Song,Bibo Wang,Yuan Hu
The development of electronics proposes higher requirements for flexible, transparent, and conductive materials with high electromagnetic shielding performance in viewing windows. Flexible transparent films have been fabricated by collaborating one-dimensional silver nanowires (AgNWs) and novel two-dimensional Ti 3 C 2 T x MXene sheets on PET films with an external polymeric coating consisting of poly (vinyl alcohol) (PVA) and poly(styrene sulfonate) (PSS). Especially, the combination of different dimensional nanomaterials effectively establishes a conductive network that exhibits a synergistic effect on excellent electromagnetic interference (EMI) shielding performance, which is superior to that of pure AgNW network or Ti 3 C 2 T x network to some extent. By optimizing the AgNWs content (0.05 mg/cm 2 ) and Ti 3 C 2 T x sheets content (0.01 mg/cm 2 ), the PET/AgNW/Ti 3 C 2 T x /PVA-PSS film exhibits a transmittance of 81% and a desirable EMI SE value of 30.5 dB. In addition, the film shows outstanding anti-fogging and frost-resistant properties due to the remarkable water absorption capacity of PVA and PSS on the external surface. Considering its efficiency and simplicity, this transparent conductive film has promising applications in flexible transparent electronic devices and optical related fields.
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DOI
PubMed
高影响因子
Journal of Materials Chemistry A
·
2021
·Vol. 10
·期 22
·11980-11989
·
IF 12.732
Zhuo Liu,He Lv,Ying Xie,Jue Wang,Jiahui Fan,Baihe Sun,Lin Jiang,Yang Zhang,Ruihong Wang,Keying Shi
Very diverse two-dimensional (2D) materials have bloomed in NO2 gas sensing applications, which provides new opportunities and challenges in function oriented gas sensors. In this work, a 2D/2D/2D structure of the Ti3C2Tx@TiO2@MoS2 composite was well designed via a facile one-step hydrothermal route, in which TiO2 nanosheets are in situ grown on ultrathin and highly conductive Ti3C2Tx MXene. Simultaneously, the few-layer and vertically oriented MoS2 nanoflakes rich in active edge-sites were uniformly distributed in the composite. Ti3C2Tx MXene and MoS2 act respectively as the electron reservoir and main sensitive material. The strong interfacial contact in different components facilitated the transfer of charge carriers and their spatial separation. Integrating the unique structural and electronic properties, the as-prepared Ti3C2Tx@TiO2@MoS2 sensor exhibited a remarkable gas sensing performance at room temperature (Ra/Rg = 55.16, 50 ppm NO2), which is 7.3, 3.8 and 2.1 times higher than that of pristine MoS2, TiO2@MoS2 and Ti3C2Tx@MoS2 composites, respectively. It also achieved ultrafast response time (1.8 s), more than 90% recoverability, low detection limit (23 ppb), dedicated selectivity and as long as eight-week stability.
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高影响因子
COMPOSITES SCIENCE AND TECHNOLOGY
·
2021
·
IF 8.528
Ying Shang,Youxin Ji,Jingwen Dong,Gui Yang,Xiaodong Zhang,Fengmei Su,Yuezhan Feng,Chuntai Liu
The rapid development of electronic devices has led to widespread demand and research on electronic packaging materials with electromagnetic shielding and thermal conductivity (TC) properties due to the inevitable issues of the electromagnetic radiation and thermal accumulation. However, there exists a huge challenge to simultaneously achieve high electromagnetic shielding and TC as well as the electrical insulation requirement as electromagnetic shielding predominantly relies on electrical conductivity of materials. Multilayer structure can endow composite materials with a variety of properties. Therefore, in this work, we fabricated sandwiched cellulose nanofiber/boron nitride nanosheet/Ti 3 C 2 T x MXene films by using a simple and effective alternating vacuum filtration method, and as a result, the special sandwich structure endows the film with excellent electromagnetic shielding, insulation and TC performance. The composite film has an extremely high electromagnetic shielding effectiveness up to 60.7 dB at 8.2 GHz as well as still maintains good electrical insulation properties due to the presence of the CNF/BNNS layer on the surface. Moreover, when the content of BNNS in the CNF/BNNS layer reaches 70 wt%, the sandwiched film has excellent in-plane TC of 19.97 W m −1 K −1 . The sandwiched film with excellent electromagnetic shielding and high TC yet insulation performance has great application value in highly integrated electronic devices.
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高影响因子
危险品化学品经营许可证（带存储）