Materials Today Communications
·
2025
·
IF 4.5
Ao Men,Meng Cai,Cong Cai,Xiaoqiang Fan
The application of MXenes in organic coatings has been limited due to their tendency to agglomerate in polymer matrices, which is primarily caused by poor interfacial interactions with the polymer, and their susceptibility to oxidation under ambient conditions, resulting from the exposed Ti atoms on the surface. Here, Ti 3 C 2 T x MXene nanosheets were covalently modified with ionic liquids to prepare functionalized hybrid materials, which were subsequently incorporated as fillers into waterborne epoxy resin. The amine-functionalized ionic liquids improve the interaction between Ti 3 C 2 T x MXene and the polymer matrix, enhancing dispersion and reducing oxidation by minimizing its environmental exposure. Corrosion resistance and tribological behaviors demonstrated that the composite coating exhibited superior anti-corrosion performance, achieving a five-fold increase in the lowest frequency impedance modulus, and enhanced wear resistance, with a 64.93 % reduction in wear rate. These improvements are ascribed to the labyrinthine effect generated by the uniform dispersion of Ti 3 C 2 T x MXene nanosheets and the enhanced mechanical properties of the coating, stemming from improved interfacial compatibility with the resin. This work presents a green modification strategy for Ti 3 C 2 T x MXene, offering a viable approach to enhance its practical application in organic coatings. It also outlines potential future research directions, including further optimization of the MXene-resin interface and exploration of alternative ionic liquids for functionalization.
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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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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
·
电池技术
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ACS Applied Materials & Interfaces
·
2022
·
IF 10.383
Na Kong,Ke Lv,Wenting Chen,Jie Guan,Pengfei Zhao,Jinlong Tao,Jizhen Zhang
MXenes, two-dimensional (2D) transition-metal carbides and nitrides with high electrical conductivity, show outstanding potential for energy storage applications. However, the aggregation and restacking of 2D MXene nanosheets seriously decrease the performance of MXene-based electrodes. Instead of using high-cost artificial templates, herein, we select natural rubber (NR) latex-containing uniform sub-macroparticles as sacrificial templates and successfully construct three-dimensional interconnected porous MXene foam. This porous structure effectively prevents the restacking of MXene nanosheets and accelerates the transfer of electrolyte ions during charging and discharging, which significantly enhances capacitance and rate performance. By adjusting the loading of latex, we find that MXene foam (MXF)-70% provides both improved specific capacitance of 480 F g–1 at 2 mV s–1 and superior rate performance (42.1% residual at 1 V s–1) with excellent cycling stability of 97.1% capacitance retention after 10000 cycles at 50 mV s–1. Additionally, the low cost of natural rubber latex provides an alternate route to produce foam electrodes on a large scale for portable and integrated supercapacitors.
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ELECTROCHIMICA ACTA
·
2022
·
IF 7.336
Xuan Jian,Mi-mi Zhang,Rui Li,Jian-xin Liu,Feng Fu,Zhen-hai Liang
The grand challenge in the development of Platinum (Pt)-based electrocatalytic hydrogen evolution reaction (HER) catalyst is their high-cost, low utilization and less controllable, limiting its wide application in hydrogen economy field. Therefore, exploring a new technique to construct catalyst require minimal amounts of Pt and maintain high performance is very necessary. Herein, we first designed a high-efficiency electrocatalyst based ultralow Pt loading (1.27 μg cm ‒2 ) on two-dimensional Ti 3 C 2 T x MXene support by controlling Cu monolayer underpotential deposition (UPD), and then galvanic replacement Cu monolayer with Pt. Due to the energetically favorable metal-support interaction, in acidic media the as-prepared Pt-Ti 3 C 2 T x MXene catalyst achieved a current density of 10 mA cm ‒2 at low overpotential of 30 mV. Furthermore, the Pt-Ti 3 C 2 T x MXene catalyst also exhibited a superior HER activity with high turnover frequency (TOF) of 41.8 s ‒1 and mass activity of 41.3 A mg Pt –1 , which were about nearly 47 times those of commercial 20 wt% Pt/C catalyst, respectively. This work demonstrate the potential of Ti 3 C 2 T x MXene as support for design of ultralow Pt loading electrocatalyst through Cu UPD-Galvanic replacement method that can be used for a wide range of catalytic reaction .
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SEPARATION AND PURIFICATION TECHNOLOGY
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2022
·
IF 9.136
Linshan Zhang,Deshun Huang,Pengxiang Zhao,Guozong Yue,Luming Yang,Weihua Dan
As a novel two-dimensional material, MXene is considered as a good candidate for pollutants removal. In this report, Ti 3 C 2 T x MXene nanosheets suspension was synthesized by intercalating and delaminating of the multi-layered Ti 3 C 2 T x using tetramethylammonium hydroxide (TMAOH). Given to its unique properties, it showed excellent performances on cationic methylene blue (MB) adsorption. The maximum adsorption capacity was figured to be 1026 mg/g at 318 K, which is much higher than most absorbents reported in previous studies. Mechanistic studies revealed that electrostatic attraction and ion exchange are the main factors for MB removal. Additionally, the Ti 3 C 2 T x MXene nanosheets composite membrane was prepared and applied to the MB removal through filtration, which showed good removal efficiency and dye water flux. The current Ti 3 C 2 T x MXene suspension should be a promising absorbent for MB removal from water.
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MICROCHEMICAL JOURNAL
·
2022
·
IF 5.304
Xue Wang,Mengjia Li,Shuang Yang,Xuting Bai,Jiajia Shan
p -Nitrophenol ( p -NP) is an important phenolic environmental pollutant. The development of novel rapid determination methods for p -NP is of significance for environmental monitoring. In this work, a sensitive electrochemical sensor based on Ti 3 C 2 T X MXene/graphene composite was developed to detect p -NP in aqueous samples. Firstly, delaminated titanium carbide (D-Ti 3 C 2 T X ) was successfully prepared via an optimized minimally intensive layer delamination (MILD) method, which was further followed by the self-assembly method to form D-Ti 3 C 2 T X /graphene (D-Ti 3 C 2 T X /GR) composite. The prepared materials were characterized by scanning electron microscopic (SEM), X-ray diffraction (XRD), atomic force microscopy (AFM) and Raman spectroscopy. Then the glassy carbon electrode (GCE) was modified by D-Ti 3 C 2 T X /GR composite to prepare the D-Ti 3 C 2 T X /GR/GCE sensor. The electrochemical behavior of D-Ti 3 C 2 T X /GR/GCE was investigated by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and chronocoulometry. Furthermore, the proposed sensor showed a strong electrochemical response based on the p -NP reduction reaction, benefiting from abundant active sites, fast electron transfer, and excellent electro-catalytic performance of the D-Ti 3 C 2 T X /GR composite. Under the optimal conditions, the D-Ti 3 C 2 T X /GR based electrochemical sensor displayed a linear response in the p -NP concentration range from 1 to 175 μmol·L −1 with a detection limit of 0.16 μmol·L −1 . The anti-interference performance, reproducibility, stability, and recovery in real sample analysis were also further evaluated. This study provided a novel and sensitive method for the rapid determination of p -NP in environmental samples.
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TALANTA
·
2022
·
IF 6.556
Lu Zhang,Chenxing Li,Yongqiang Yang,Jingxuan Han,Wenwei Huang,Jiayi Zhou,Yan Zhang
With the development of new methods for the medical diagnosis, electrochemical sensors have attracted increasing attention. However, biofouling on the surface of the sensor significantly decreases sensor performance, thereby limiting the application of electrochemical sensors in complex biological fluids. Given the urgent need for anti-biofouling electrodes, a sensor based on a glass carbon electrode (GCE) modified with Ti 3 C 2 T X MXene and electrochemically reduced holey graphene (ERHG) was fabricated and demonstrated to have excellent electrochemical performance and anti-biofouling properties. ERHG provides abundant surface-active sites and imparts stability by hindering the agglomeration and oxidation of MXene. Furthermore, the excellent conductivity and hydrophilicity of MXene result in a high electron transfer rate and strong hydrophilicity. The MXene-ERHG/GCE sensor can detect dopamine with a wide linear range (0.2–125 μM) and a low detection limit of 0.044 μM in phosphate-buffer saline solution. Importantly, the hydrophilicity of MXene-ERHG reduces non-specific protein adsorption on the electrode surface, providing resistance to biofouling. After immersion in bovine serum albumin for 30 min, MXene-ERHG/GCE retained 85.90% of its initial peak current value, much higher than that of ERHG/GCE (17.75%). The MXene-ERHG/GCE sensor also showed good sensitivity for dopamine detection in serum and artificial cerebrospinal fluid (aCSF) containing bovine serum albumin. Moreover, MXene-ERHG/GCE exhibited excellent reproducibility and long-term stability in aCSF. The results demonstrate that MXene-ERHG/GCE has excellent anti-biofouling performance, and shows potential as an electrode material for application in biosensing.
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APPLIED SURFACE SCIENCE
·
2022
·
IF 7.392
Bingzhe Jia,Huailin Yang,Lei Wang,Zhiqi Zhao,Xinming Wu
Compared with most transition metal based electrode materials, 2D M n+1 X n T x has high conductivity and good solvent compatibility. However, its low energy density hinders its application as supercapacitior electrode for electrochemical energy storage applications. Herein, the interface-pillared of Fe-MOF (MIL-100(Fe)) onto Ti 3 C 2 T x MXene layer, which provide rich electrochemical active sites, is achieved, and the MOF nanospheres with MXene nanosheets are subsequently converser into three dimensional multilayer porous nanostructures through the chemical bond couping. Therefore, the MOF nanospheres are anchored between the nansheets of MXene, enabling the fast ion transportation in the three dimensional nanostructures. Menanwhile, the MOF nanospheres prevent the aggregation of MXene nanosheets, and the laminar structure is maintained for more redox reaction sites within the hybrid electrodes through fast charge–discharge cycles. As a result, the MIL-100(Fe)/Ti 3 C 2 T x MXene electrode displays superior energy density (85.53 Wh kg −1 ), which is much higher than the other MXene-based electrodes as far as we know. This design strategy of 2D hybrid electrodes opens up a new way for the commercial application of high perfermance supercapacitor.
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2022
·
IF 6.371
Zhichao Li,Xinyu Liu,Xuyun Wang,Hui Wang,Jianwei Ren,Rongfang Wang
Despite the existing advances of Ti 3 C 2 T x MXene as supercapacitor electrode material, its capacitance can be further enhanced through the composite strategy. In this work, the nitrogen-doped superhydrophilic carbon cloth (ENCC) was firstly prepared by N-doping of carbon cloth (CC), and then Ti 3 C 2 T x MXene nanosheets were electrophoretically deposited to yield the binder-free Ti 3 C 2 T x(EPD) /ENCC as supercapacitor electrode material. As a result, the composite electrode exhibited an area-specific capacitance of 2080.1 mF·cm −2 at 1 mA·cm −2 current density. The analysis implied that the varying Ti valence states provided certain psedocapacitance to the capacitance of the as-prepared electrode, though the main contribution was still dominantly from the electric double layer capacitance (EDLC). Further, the assembled symmetric supercapacitor yielded a wide voltage window of 1.8 V, and a good cyclic stability with 91% capacitance retention after 10,000 charge/discharge cycles at 20 mA·cm −2 . Overall, the employed composite strategy enabled the good dispersion of the MXene flakes on the surface of the flexible substrate . Meanwhile, the large number of functional groups (-OH, -F, etc.) on the surface of Ti 3 C 2 T x MXene interacted with the carbon layer through hydrogen bonding effects, which endows it as an ideal electrode for electrochemical capacitors .
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International Journal of Applied Ceramic Technology
·
2022
·Vol. 20
·期 1
·251-260
·
IF 2.328
Fada Wei,Qinghua Liu,Heqiang Liu,Guohong Wang,Minghang Li,Mingxing Li,Xingmin Liu
The proliferation of electronic devices and wireless communication is leading to serious electromagnetic (EM) interference. In this work, Ti 3 C 2 /cement composites were developed as high efficiency EM functional materials by introducing exfoliated Ti 3 C 2 T x MXene with cement for green buildings with EM shielding function. In the composites, few-layered Ti 3 C 2 MXene were dispersed homogeneously throughout the cement matrix. The EM properties of the composites were studied as a function of the MXene content. With increasing MXene content, real and imaginary part of permittivity was significantly improved owing to the polarization and electrical conduction caused by the MXene phase. Composites with 15 wt.% MXene showed good EM absorbing properties with a maximum effective absorbing bandwidth of 2.67 GHz. Strong EM shielding can be achieved when MXene content increased to 25 wt.%. The EM shielding effectiveness of such composites was higher than 22.0 dB, and the dominating shielding mechanism was EM absorption. This work finds new materials for the development of advanced green buildings with EM shielding function.
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MICROCHIMICA ACTA
·
2021
·Vol. 188
·期 11
·1-9
·
IF 5.833
Xia Yixuan,Ma Yuzhi,Wu Yuntao,Yi Yinhui,Lin Huiyu,Zhu Gangbing
A proof-of-principle concept for free-electrodeposited anodic stripping voltammetry (ASV) sensing of Cu 2+ is proposed by using Ti 3 C 2 T x MXene/carbon black (Ti 3 C 2 T x @CB) nanohybrids as electrode materials. Owing to the high adsorption and reduction capability of Ti 3 C 2 T x towards Cu 2+ , Ti 3 C 2 T x MXene enables Cu 2+ to be immobilized and self-reduced directly to form Cu 0 on the Ti 3 C 2 T x @CB electrode surface. As a result an oxidation peak current appears from the re-oxidation of Cu 0 via differential pulse voltammetry. Carbon black (CB) was introduced to prevent Ti 3 C 2 T x Mxene aggregation and improve the related electron transfer as well as enhance their surface area. After optimizing various conditions, a considerable low limit of detection (4.6 nM) and a wide linear range (0.01–15.0 μM) for Cu 2+ were achieved at the working potential from − 0.3 V to 0.0 V (vs SCE). Relative standard deviation (RSD) of eight individual Ti 3 C 2 T x @CB electrodes is 3.72%, and the recoveries from tap water sample and lake water sample were in the ranges of 97.0–108% and 104–107%, respectively. Graphical abstract
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危险品化学品经营许可证（带存储）