PROGRESS IN ORGANIC COATINGS
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2025
·
IF 7.3
Mingjun Zou,Guangkai Jin,Xinwei Wang,Yikun Ji,Bin Liu,Shujuan Liu,Qian Ye,Feng Zhou
Hydrogels show great potential for marine antifouling, but their low mechanical strength and limited antifouling effectiveness hinder their broader application. Herein, the 3-sulfopropyl methacrylate potassium (SPMA) polymer brushes layer was grafted onto MXene, followed by in situ reduction to form silver nanoparticles (AgNPs) with an average particle size of about 10 nm. The resulting 0D/2D MXene-SPMA@Ag nanosheets exhibit effective antifouling capabilities, with antibacterial and algal removal rates exceeding 90 %. Meanwhile, composite antifouling hydrogels were developed by incorporating functionalized nanosheets into the hydrogel matrix. The incorporation of MXene-SPMA@Ag significantly enhanced mechanical strength, anti-swelling behavior, and friction reducing properties of the hydrogels. Compared to the blank hydrogel, the mechanical properties of the composite hydrogel were significantly improved, with the tensile strength increasing from 99 KPa to 238 KPa and the strain rising from 517 % to 861 %. In addition, MXene-SPMA@Ag/Gel showed excellent antifouling performance, with an antimicrobial activity approaching 100 % and an algae removal rate exceeding 90 %. These improvements were attributed to the synergistic effect between the MXene-SPMA@Ag nanosheets and the hydrogel.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Xiangjun Li,Dening Zou,Libo Tong,Miaomiao Li,Yinxia Dong,Shiwei Xu,Qingjuan Wang,Kuaishe Wang
Self-healing materials have garnered considerable attention for their remarkable damage recovery capabilities. Nonetheless, the trade-off between enhanced mechanical strength and self-healing efficiency poses a formidable challenge. Inspired by the structure of biological enthesis, this study presents a self-healing polymer composite with complementary hydrogen bonding sites and gradient interface. The self-healing matrix is synthesized by incorporating multi-strength hydrogen bonds sites within a flexible polydimethylsiloxane backbone. The gradient interface is a character with “core-sheath” structure that integrates a rigid core (Ti 3 C 2 -MXene-grafted graphene oxide) and a soft shell (a cerium-polyphenol complex). The result exhibits impressive tensile strength (5.44 MPa, lifting approximately 4,434 times its own weight) and self-healing efficiency (96.4%) without requiring external stimuli. The resultant composite breaks through the monotony of the traditional two-dimensional (2D) nanofiller interface design and has the best mechanical performance in its kind. This composite coating also offers superior corrosion resistance (achieving a low-frequency impedance modulus of up to 5.25 × 10 9 ohm cm 2 ) and healing corrosion resistance after damage for magnesium. Furthermore, this composite integrates self-healing properties, corrosion resistance, flame retardancy, and recyclability, offers a promising avenue of self-healing polymer composite for practical applications.
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高影响因子
APPLIED SURFACE SCIENCE
·
2024
·
IF 6.3
Wei Zeng,An Gui,Yumin Wang,Zichu Zhang,Liting Deng,Yuan Tian,Yanlong Li,Liangping Hua,Xinyu He,Kang Di,Peng Ling,Yi Xiong,Pengfei Fang
Nowadays, the two-dimensional (2D) materials have shown broad prospects for their fascinating attributes, yet the ineluctable material defects still restrict their applications. Herein, a spin-coating technology is employed to establish few-layers borophene/bismuthene/Ti 3 C 2 T x MXene/black phosphorus (BP) laminations, and then a photoelectrochemical-electrostatic coupling sensor is developed. It is demonstrated that the rough defects on the Si/Ag substrate can be patched by the upper few-layers borophene and bismuthene, and the residual defects on the Ti 3 C 2 T x layer can be exactly patched by the as-derived TiO 2 and the upper 2D BP layers. These 2D metals have been bounded with adjacent 2D semiconductors through van der Waals interactions to greatly depress the metal-induced gap states and enhance the carrier transport. Under just light irradiation or ambient electric field (AEF), the current response of the lamination electrode obviously increases, compared to that without the key BP cover layer. Further, the response can be promoted to 236.4 μA cm −2 , stimulated by AEF combined with light irradiation, which is about 1.8 times and 19.4 times higher than that of light irradiation alone and AEF alone, respectively. These can be attributed to the defect engineering effect, by which the 2D materials constantly mending the defects.
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CRITICAL REVIEWS IN ANALYTICAL CHEMISTRY
·
2024
·
IF 4.2
Tahir Ali Sheikh,Muhammad Ismail,Muhammad Fazle Rabbee,Hira Khan,Ayesha Rafique,Zeerak Rasheed,Amna Siddique,Muhammad Zeeshan Rafiq,Zafar A. K. Khattak,Shehzada Muhammad Sajid Jillani,Umer Shahzad,Muhammad Nadeem Akhtar,Mohsin Saeed,Khalid A. Alzahrani,Jamal Uddin,Mohammed M. Rahman,Francis Verpoort
MXenes (Mn+1XnTx), a subgroup of 2-dimensional (2D) materials, specifically comprise transition metal carbides, nitrides, and carbonitrides. They exhibit exceptional electrocatalytic and photocatalytic properties, making them well-suited for the detection and removal of pollutants from aqueous environments. Because of their high surface area and remarkable properties, they are being utilized in various applications, including catalysis, sensing, and adsorption, to combat pollution and mitigate its adverse effects. Different characterization techniques like XRD, SEM, TEM, UV-Visible spectroscopy, and Raman spectroscopy have been used for the structural elucidation of 2D MXene. Current responses against applied potential were measured during the electrochemical sensing of the hazardous pollutants in an aqueous system using a variety of electroanalytical techniques, including differential pulse voltammetry, amperometry, square wave anodic stripping voltammetry, etc. In this review, a comprehensive discussion on structural patterns, synthesis, properties of MXene and their application for electrochemical detection of lethal pollutants like hydroquionone, phenol, catechol, mercury and lead, etc. are presented. This review will be helpful to critically understand the methods of synthesis and application of MXenes for the removal of environmental pollutants.
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DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Qing Sun,Kailin Li,Tie Shu,Ziyang Guo,Yongfei Li,Yuxin Zhang,Liang Li,Jiaoyi Ning,Peng Zhao,Ke Xin Yao
Cobalt-iron layered double hydroxide (CoFe LDH), a promising air cathode material for rechargeable zinc-air batteries (ZABs), faces significant challenges in practical applications due to its low oxygen evolution reaction (OER) catalytic activity and the ambiguity in identifying its active sites. To address these issues, this study introduces MXene quantum dots (MQDs) into CoFe LDH, fabricating a CoFe LDH/MQD/Co@NF composite with enhanced interfacial electronic coupling. This integration induces electron transfer from CoFe LDH to MQDs, leading to the pre-oxidation of Co ions into higher-valence Co 3+ states, as confirmed by X-ray photoelectron spectroscopy, and optimizing OER intermediate adsorption kinetics. Density functional theory (DFT) calculations reveal cobalt as the primary active site, highlighting its critical role in boosting catalytic activity. The composite exhibits a low OER overpotential of 192 mV at 10 mA cm −2 , a Tafel slope of 36.3 mV dec -2 , a maximum power density of 136.5 mW cm −2 , and a high specific energy of 626 mA h g −1 in ZABs, with exceptional durability over an 85-hour cyclic test. These results demonstrate that MQD incorporation significantly improves OER catalytic activity and enhances ZAB performance, offering a promising strategy for designing high-performance, long-lasting electrocatalysts and advancing electrochemical energy storage technologies.
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高影响因子
Advanced Science
·
2022
·Vol. 9
·期 7
·2101988
·
IF 17.521
Junjie Yang,Jianqiao Wang,Huiqin Li,Ze Wu,Youqiang Xing,Yunfei Chen,Lei Liu
In the design of electromagnetic (EM) wave absorbing materials, it is still a great challenge to optimize the relationship between the attenuation capability and impedance matching synergistically. Herein, a 3D porous MoS 2 /MXene hybrid aerogel architecture with conformal heterogeneous interface has been built by atomic layer deposition (ALD) based on specific porous templates to optimize the microwave absorption (MA) performance comprehensively. The original porous structure of pristine Ti 3 C 2 T x aerogel used as templates can be preserved well during ALD fabrication, which prolongs the reflection and scattering path and ameliorates the dielectric loss. Meanwhile, plenty of heterointerfaces between MoS 2 and Ti 3 C 2 T x have been fabricated based on conformally ALD-deposited MoS 2 with controlled thickness on the porous surfaces of the templates, which can effectively optimize the impedance matching and transform its response to EM waves from shielding into absorbing. Moreover, the interaction between the attenuation capability and impedance matching can also be modulated by the number of ALD cycle in MoS 2 fabrication. After optimization, MoS 2 /MXene hybrid aerogel obtained under 300 ALD cycles shows a minimum reflection loss of −61.65 dB at the thickness of 4.53 mm. In addition, its preferable lightweight, high surface area, mechanical, and hydrophobicity properties will also be conducive to further practical applications.
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高影响因子
ADVANCED ENGINEERING MATERIALS
·
2025
·
IF 3.3
Yuhao Luo,Qian Zhu,Lei Cao,Lanlan Fan,Feng Gu,Shixian Xiong
Flexible micro-supercapacitors (FSCs), with their outstanding flexibility and low weight, offer great potential for a wide range of applications in the field of flexible electronics. Herein, the few-layer Ti 3 C 2 T x MXene hybridized with commercial PEDOT:PSS dispersion are used as ink for aerosol jet printing (AJP) to fabricate interdigitated and double-helix electrodes on 2D polyethylene terephthalate (PET) films and 1D thermoplastic polyurethane fibers, respectively. By controlling the evaporation behavior of aerosol microdroplets during the printing process, a transformation from 2D Ti 3 C 2 T x MXene nanosheets to 3D wrinkled spherical structures on the surface of the flexible substrate is achieved, which increases the accessibility of ions to the electrochemical active sites. In addition, the introduction of PEDOT:PSS as a “bridge” connecting the Ti 3 C 2 T x MXene-wrinkled spheres not only enhances the electronic conductivity within the electrode but also improves the bending stability of the electrode. Consequently, the optimized MXene/PEDOT:PSS-based planar and fiber-architectured FSCs exhibit excellent areal capacitance and flexible stability. This work highlights the significant potential of AJP technology in developing electronic devices with fascinating functionalities on various flexible substrates.
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高影响因子
ACS Applied Nano Materials
·
2025
·
IF 5.5
Meng Zhu,Weiyun Chen,Yuting Lei,Zhichao Zhang,Penghao Gao,Yongjian Xu,Hailong Xu
Designing a material with simultaneous microwave and sound absorption abilities is highly desired to mitigate electromagnetic radiation and noise pollution. However, their further development is highly challenging due to their totally different mechanisms of energy conversion. Here, we fabricate an ultralight and porous composite aerogel composed of cotton-derived nanofibrillated cellulose and MXene (f-Ti3C2TX) nanosheets by directional freeze-drying technology, toward simultaneous microwave and sound absorption. The honeycomb-like biomimetic microstructure of obtained composite aerogel not only allows unidirectional transmission for incident microwaves and sound waves but also induces strong energy attenuation and high conductive loss due to assembled f-Ti3C2TX nanosheets. Moreover, the f-Ti3C2TX content and density of the composite aerogel are further regulated to enable precise tunability of the microstructure and dielectric properties, contributing to optimal microwave absorption ability and high sound absorption capacity at the same time. The high-efficiency absorption covers the whole X band with a RCmin of −44.9 dB at a thickness of 6.35 mm, while the average sound absorption coefficient reaches 0.82 at a thickness of 30 mm in the frequency range from 1000 to 6300 Hz. This study offers a facile and sustainable approach to achieving controllable microwave and sound absorption for the targeted applications.
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高影响因子
JOURNAL OF POWER SOURCES
·
2025
·
IF 7.9
Wenqiang Ai,Jinnuo Yang,Jiahui Lv,Ya'nan Zheng,Ruiqi Wang,Yang Liu,Lei Zu,Huiqin Lian
Sodium-ion batteries (SIBs) attract significant interest due to the abundance and affordability of sodium resources, alongside their environmentally sustainable profile. Nevertheless, further research is required to improve high-rate performance and long-term cycling stability. Black phosphorus (BP), with its high theoretical specific capacity, and MXenes, known for their excellent electrical conductivity and multiple functional groups, are both promising anode candidates for SIBs. To address these challenges, a composite anode of BP/Ti 3 C 2 T X MXene/carbon nanotubes (CNTs) (BMC) containing phosphorus-oxygen-titanium (P-O-Ti) bonds is prepared through a straightforward two-step ball milling process. The microstructure and bonding conformation of the BMC composite material are studied using a variety of characterization methods. Compared to the BP/CNTs (BC) anode, the BMC anode demonstrates superior cycling stability and high-rate performance. Kinetic analysis further reveals favorable electrochemical performance. The P-O-Ti bonds in BMC significantly enhance SIBs performance by stabilizing the BP-based composite structure. As a result, the reversible specific capacity of BMC anode reaches 630.7 mAh g −1 after 1400 cycles at 2.0 A g −1 . Furthermore, the reversible specific capacity remains stable at 281.1 mAh g −1 even after 1000 cycles at 10.0 A g −1 . This work presents a straightforward method for preparing BMC anodes.
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Lina Qin,Guorong Zhang,Taigen Liang,Lixian Sun,Fen Xu,Yongpeng Xia,Sergey P. Verevkin,Sergey V. Vostrikov,Anton Lvovich Maximovi,Xuezhang Xiao,Lixin Chen,Hongge Pan
As a prominent catalyst in the development of MgH 2 hydrogen storage materials, MXene can significantly enhance hydrogen storage performance. In this study, we investigated the impact of using molten salts instead of HF to treat Ti 2 NTi x and its impact on the hydrogen storage properties of MgH 2 . MgH 2 -10 wt% Ti 2 NTi x composite has been prepared via ball milling. The results showed that adding 10 wt% Ti 2 NTi x largely lowered the initial dehydrogenation temperature of MgH 2 from 300.2 ℃ to 173.5 ℃. Under isothermal conditions at 350 ℃, the composite released 6.11 wt% H 2 within 4 minutes. Furthermore, after dehydrogenation, the MgH 2 -10 wt% Ti 2 NTi x composite absorbed 3.4 wt% H 2 in 60 minutes at 100 ℃ and 30 bar hydrogen pressure. EPR found that there is a large number of oxygen vacancies on the Ti 2 NTi x surface introduced by molten salt treatment, providing abundant active sites and accelerating electron transfer. Additionally, the in-situ formation of titanium nitride compounds, the synergistic multivalent catalytic effect of titanium, and the multiphase interfaces in MgH 2 -10 wt% Ti 2 NTi x contributed to the composite’s improved catalytic activity and stability. This work provided valuable insights into the application of oxygen vacancy-rich, incompletely etched Ti 2 NTi x materials in magnesium-based hydrogen storage, demonstrating their great potential in hydrogen storage technologies.
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高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2025
·
IF 3.9
Cai Yanzhi,Ren Shaoxiong,Cheng Laifei,Guo Siyu,Yuan Yibing,Chen Mingxing,Yu Zixuan,Chai Yalong,Huang Xue,Zhou Yuan
Most of the reported carbon-polyaniline (PANI) electrode composites are powders or require flexible substrates, which hinders their potential applications in the flexible wearable electronics. Moreover, PANI structure collapses and shed loss due to the lack of effective support and protection results in low capacity retention. In this study, superflexible, binder-free and substrate-free carbon nanotube-polyaniline nanofibers/MXene (CP nf M) buckypaper were prepared by ultrasonic dispersion self-assembly and directional pressure filtration. In the buckypaper, polyaniline nanofibers (PANI nf ) were in situ growth on carbon nanotubes (CNTs), and the CNTs-PANI nf was inserted between the MXene nanosheets that were ultrasonically separated. Some MXene nanosheets were cut into fragments by ultrasonic waves and self-assembled into nanoflowers on the CNTs-PANI nf . The CP nf M electrode had an excellent capacitance of 479 F g −1 at 1 A g −1 . The superflexible solid-state supercapacitors (FSSCs) assembled with the electrode had a capacitance of 110 F g −1 at 1 A g −1 , a high energy density of 15.3 Wh Kg −1 at a power density of 0.5 kW Kg −1 . The capacitance of the FSSC did not decrease but increased during the charge–discharge cycle, with a capacitance retention of 104% after 5000 cycles. Its capacitance retention was 90% after folding 200 times in half along the sharp crease. One-dimensional CNTs and two-dimensional MXene nanosheets collaboratively constructed the superflexible porous skeleton, alleviating the stress damage caused by volume changes of the PANI nf in the cycles. MXene nanosheets trapped the shed PANI nanoparticles. This work provides a way for potential application of high-performance energy storage devices in wearable electronics.
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高影响因子
Small Methods
·
2023
·Vol. 7
·期 8
·2201526
·
IF 12.4
Yongqiu Xian,Bin Wang,Zifeng Lin
MXenes have been extensively explored as supercapacitor electrodes, especially in acidic aqueous electrolytes, where ultrahigh specific capacitance can be achieved; however, their narrow working potential window (≤ 1.0 V) limits the acquisition of high energy. Neutral and alkaline electrolytes can be used to extend the working potential window but MXenes in these electrolytes are less pseudocapacitive active, which leads to reduced charge storage. In this study, it is shown that Ti 3 C 2 T x MXene in a mild AlCl 3 aqueous electrolyte can operate at a wide potential range from 0 to −1.3 V versus Hg/Hg 2 SO 4 and retain high pseudocapacitive activity. Thus, a high capacity of up to 85 mAh g −1 is achieved, surpassing its performance in H 2 SO 4 electrolyte of 78 mAh g −1 . More interestingly, most of the capacity is released at a more negative potential range than that in acidic electrolytes, making it more suitable as a negative electrode material. In situ electrochemical quartz crystal microbalance results suggest that the high capacity originates from the pseudocapacitive intercalation/deintercalation of H + instead of Al 3+ , providing the possibility of coupling MXene anodes with proton redox active cathodes to achieve high-energy and high-power devices.
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PubMed
高影响因子
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