COMPOSITES SCIENCE AND TECHNOLOGY
·
2026
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IF 9.9
Tiantian Li,Weipeng Huang,Yi Li,Lijuan Zhu,Ce Liang
Homologous interfacial engineering enables atomic anchoring of P-CNPs onto C-Ti 3 C 2 T x via Ti-O-C covalent bonds. • Hierarchical architecture acts as wave confinement walls, inducing Maxwell-Wagner polarization and extended dissipation paths. • EMI SE reaches 75.44 dB at 4 wt% loading with absorption as the dominant shielding mechanism. • Composite achieves 215.4 MPa tensile strength, overcoming conductivity–mechanical integrity trade-off. Achieving a synergistic balance between electromagnetic interference (EMI) shielding and mechanical robustness in carbon fiber-reinforced polymers (CFRPs) remains a fundamental challenge due to the long-standing trade-off between electrical conductivity and mechanical integrity. Here, we report a homologous interfacial reinforcement strategy to engineer a hierarchical architecture via the atomic-scale anchoring of C-Ti 3 C 2 T X and polyimide/polydopamine-derived carbon nanoparticles (P-CNPs). The formation of Ti-O-C covalent bonds yields a continuous hybrid network that effectively suppresses MXene restacking. This hierarchical configuration acts as electromagnetic-wave confinement walls, inducing pronounced Maxwell-Wagner polarization and extending energy-dissipation pathways through multiple internal reflections. The composite achieves a high EMI shielding effectiveness (SE) of 75.44 dB at a low filler loading of 4 wt%, while maintaining an excellent tensile strength of 215.4 MPa. The homologous interfacial engineering strategy presented here offers a transformative route for simultaneously integrating mechanical robustness with absorption-enhanced EMI functionality, providing new design insights for integrated materials in aerospace and microelectronics. Download: Download high-res image (324KB) Download: Download full-size image
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高影响因子
Sustainable Materials and Technologies
·
2026
·
IF 9.7
Muhammad Muneeb Ahmad,Areena Fatima,Yunyun Ma,Munzar Badshah,Xiaoqin Ma,Zhaowei Qu,Lulu Huang,Lin Zhang,Vadivel Saravanan,Quansheng Xing,Zhaoyan Wang,Qiaosheng Pu
Solar-driven interfacial water evaporation offers a transformative and sustainable route to alleviate the global freshwater crises through localized photothermal conversion. Cellulose microfibers (CMFs), derived from abundant agricultural waste such as wheat straw, serve as a renewable and valuable reinforcing material in Ti 3 C 2 T x /alginate/CMFs hydrogel, enhancing its porous structure and water transport properties for efficient solar-driven water evaporation and desalination. A highly hydrophilic Ti 3 C 2 T x /alginate/CMFs hydrogel, optimized via a unique one-layer and two-layer freeze casting strategy, features a porous architecture with interconnected CMFs networks, enabling ultrafast water transport, broadband solar absorption, and high photothermal conversion for water evaporation. Under one-sun irradiation (1 kW m −2 ), the optimized hydrogel evaporator (MACMF-8) achieved an evaporation rate of 1.66 kg m −2 h −1 with an evaporation efficiency of 85.41%. The hydrogel exhibited excellent salt rejection, maintaining a high evaporation rate of 1.57 kg m −2 h −1 in 5 wt% NaCl solution with only a minor 3.13% decrease over a 10-day desalination period. Using a simple device under one-sun irradiation for 12 h, 18.48, 19.33, 19.83, and 19.81 kg m −2 of purified water were obtained from 5 wt% NaCl solution, simulated seawater, ponceau S, and crystal violet dye solution, respectively. Combining scalability, durability, and solar-driven operation, the Ti 3 C 2 T x /alginate/CMFs hydrogel represents a highly promising platform for sustainable water purification and desalination.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Weiya Tan,Wenjie Zhao
Addition of Ti 3 C 2 T x nanosheets into epoxy matrix is crucial for improving the mechanical and anti-corrosion properties, depending on their unique structures and properties. However, randomly-arranged Ti 3 C 2 T x nanosheets failed to meet higher corrosion protection requirements especially under alternating hydrostatic pressure (AHP) environment. Herein, inspired by the unique structure of mille crepe cake, the tannic acid (TA)-functionalized Ti 3 C 2 T x nanosheets were distributed parallelly in the epoxy matrix using a simple blade-coating method to form layer-by-layer (LBL) coating. Particularly, epoxy matrix incorporated with TA@Ti 3 C 2 T x exhibited a nearly perfect internal parallel arrangement structure due to shear force during blade-coating, excellent compatibility, and higher binding force. As being immersed 60 days at 1 atm and 240 h at 20 MPa AHP in 3.5 wt% NaCl solution, the worst frequency impedance values was enhanced by 1–3 orders of magnitude for the parallel alignment in comparison to the randomly-arranged TA@Ti 3 C 2 T x composite coating. The results were mainly due to the fact that parallelly-arranged TA@Ti 3 C 2 T x could maximize tortuosity and got the utmost out of the barrier properties of composite coating. Moreover, electrochemical characterization of defects and Molecular Dynamics (MD) simulations results proved that TA could react with Q235 steel in three ways to form ferric-tannates, which could further prevent the corrosion of steel. Prospectively, the parallelly alignment of TA@Ti 3 C 2 T x nanosheets in epoxy would greatly increase the corrosion resistance of composite coating, especially suitable for AHP environment.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Hao Liu,Zhou Cui,Lijin Luo,Qiugang Liao,Rui Xiong,Chao Xu,Cuilian Wen,Baisheng Sa
With the rapid development of modern electronics, the next generation of electromagnetic interference (EMI) shielding materials requires ultrathin, lightweight, flexibility and robustness to protect electronic devices from radiation pollution. In this study, the multifunctional Ti 3 C 2 T x /Bacterial Cellulose (Ti 3 C 2 T x /BC) composite films with uniformly lamellar structures have been developed by combining experimental and theoretical works. The microstructures, mechanical properties, EMI shielding and photothermal conversion performances of Ti 3 C 2 T x /BC composite films have been systematically investigated. It is highlighted that the resultant ultrathin and flexible Ti 3 C 2 T x /BC composite film with a Ti 3 C 2 T x content of 50 wt% exhibits satisfactory tensile strength of 109.6 ± 4.5 MPa, excellent electrical conductivity of 5020 S m −1 and EMI SE value of 43.7 dB. More interestingly, the composite film displays stable and fast-response photothermal characteristics, with the photothermal conversion temperature up to 74.5 ℃. This study proposes a versatile strategy to synthesize multifunctional MXene/BC composite films with satisfactory mechanical properties, high performance EMI shielding and photothermal conversion effects, which shows great potential for the protection of electronic devices.
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COMPOSITES PART B-ENGINEERING
·
2022
·
IF 11.322
Zhengyan Chen,Maoyu Zhang,Zhengzheng Guo,Hongtao Chen,Hongxia Yan,Fang Ren,Yanling Jin,Zhenfeng Sun,Penggang Ren
Despite two-dimensional (2D) layered MoS 2 and newly emerging lamellar MXene providing great potential in lubricity, the mechanical and tribological performance of their hybrids in polymeric composites has been rarely discussed. Herein, the Ti 3 C 2 T x MXene/MoS 2 hybrids were successfully prepared by a hydrothermal method , and a novel hyperbranched polysiloxane (HBPSi) terminated by amino groups was synthesized by a one-pot polycondensation reaction. The mechanical and tribological properties of bismaleimide (BMI) composites as well as their wear mechanisms were systematically evaluated using HBPSi as reinforced phase and MXene/MoS 2 as lubrication additive. The results show that the addition of HBPSi and MXene/MoS 2 hybrids dramatically improved mechanical strengths and tribological performance . Specifically, the 8 wt% HBPSi and 0.6 wt% MXene/MoS 2 hybrid filler enhanced impact and flexural strengths by 85% and 42%, and decreased the frictional coefficient and wear rate by 69% and 88%, respectively, with neat BMI resin as a comparison. The splendid mechanical and tribological performance is ascribed to the synergistic effect of “soft” toughening HBPSi and “hard” lubricating MXene/MoS 2 , the good dispersion of hybrid filler , and the formed protective tribo-film. This work paves a way for the design and application of novel high-performance lubrication additive in the polymeric matrix .
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2022
·
IF 9.965
Man Qi,Fan Li,Zheng Zhang,Qiao Lai,Yuwen Liu,Jianmin Gu,Liqiu Wang
Aqueous zinc-ion batteries (ZIBs) are receiving a continuously increasing attention for the flexible and wearable electronics, due to their non-toxicity, non-flammability, and low-cost features. The development of high-performance flexible cathodes is of great significance to the development of flexible ZIBs. In this work, the flexible electrode of three-dimensional (3D) interconnected ultrathin MnO 2 nanosheets on carbon cloth (CC@MnO 2 ) coated with Ti 3 C 2 T x MXene (CC@MnO 2 @MXene) is prepared by electrodeposition and dipping methods, in which CC@MnO 2 is put into MXene dispersion for impregnation treatment to make the CC@MnO 2 fibers wrapped with MXene completely. The results show that the coating of MXene improves the conductivity of the composite, and the interface between MXene and MnO 2 provides more active sites. Therefore, CC@MnO 2 @MXene-10 electrode as the cathode of zinc ion battery provides high charge storage performance (517.0 mAh g −1 at 0.1 A g −1 ), excellent cycling stability (80.6 mAh g −1 after 800 cycles at 1 A g −1 ) and excellent energy density (701.3 Wh kg −1 at 133.8 W kg −1 ). Finally, flexible quasi-solid battery based on CC@MnO 2 @MXene composite as cathode was assembled, and the flexible electrodes show potential for application.
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PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2022
·
IF 10.383
Yijin Wang,Junli Nie,Zhang He,Yuanhong Zhi,Xiaohua Ma,Peng Zhong
Solar-driven interface evaporation recently emerges as one of the most promising methods for seawater desalination and wastewater purification, mainly due to its low energy consumption. However, there still exist special issues in the present material system based on conventional noble metals or two-dimensional (2D) nanomaterials etc., such as high costs, low light-to-heat conversion efficiencies, and unideal channels for water transport. Herein, a composite photothermal membrane based on Ti3C2Tx MXene nanoflakes/copper indium selenide (CIS) nanoparticles is reported for highly efficient solar-driven interface evaporation toward water treatment applications. Results indicate that the introduction of CIS improves the spatial accessibility of the membrane by increasing the interlayer spacings and wettability of MXene nanoflakes and enhances light absorption capability as well as reduces reflection for the photothermal membrane. Simultaneously, utilization of the MXene/CIS composite membrane improves the efficiency of light-to-heat conversion probably due to formation of a Schottky junction between MXene and CIS. The highest water evaporation rate of 1.434 kgm–2 h–1 and a maximum water evaporation efficiency of 90.04% as well as a considerable cost-effectiveness of 62.35 g h–1/$ are achieved by using the MXene/CIS composite membrane for solar interface evaporation, which also exhibits excellent durability and light intensity adaptability. In addition, the composite photothermal membrane shows excellent impurity removal ability, e.g., >98% for salt ions, >99.8% for heavy metal ions, and ∼100% for dyes molecules. This work paves a promising avenue for the practical application of MXene in the field of water treatment.
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PubMed
高影响因子
JOURNAL OF POWER SOURCES
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2021
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IF 9.127
Xiaoming Yang,Tong Li,Xuexia He,Qi Li,Jie Sun,Zhibin Lei,Zong-Huai Liu
Using large Ti 3 C 2 T x nanosheets (L-Ti 3 C 2 T x ) and aramid nanofibers as the assembled units and functional additive, the L-Ti 3 C 2 T x nanosheets/E-ANF film electrode (T/E-A-10) with high capacitive performance of 332 F g −1 in 3 M H 2 SO 4 electrolyte and good mechanical strength of 153 MPa was prepared. Also PVA/Ti 3 C 2 T x nanosheet flexible hydrogel electrolyte with excellent antifreezing, long-lasting moisture, high ion conductivity and wide temperature working range was developed. A wide-temperature flexible all-solid-state T/E-A-10 film symmetrical supercapacitor (T/E-A-10 FSSC) was assembled by using T/E-A-10 flexible film as electrodes, and PVA/Ti 3 C 2 T x membrane as hydrogel electrolyte and separator. The assembled devices not only showed a specific capacitance of 83 F g −1 at a current density of 0.5 A g −1 , 92% of the initial capacitance after 4000 cycles, and a maximum energy density of 11.8 Wh kg −1 , but also maintained good flexibility in a wide temperature range of −40–60 °C, it showed a promising flexible power source in the field of portable/wearable electronic devices.
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ACS Sensors
·
2021
·
IF 7.711
Qiuni Zhao,Deming Sun,Si Wang,Zaihua Duan,Zhen Yuan,Guangfen Wei,Jian-Long Xu,Huiling Tai,Yadong Jiang
Titanium carbide (Ti3C2Tx) with a distinctive structure, abundant surface chemical groups, and good electrical conductivity has shown great potential in fabricating superior gas sensors, but several challenges, such as low response kinetics, poor reversibility, and serious baseline drift, still remain. In this work, γ-poly(l-glutamic acid) (γ-PGA) with a blocking effect is exploited to modify Ti3C2Tx, thereby stimulating the positive response behavior of Ti3C2Tx and improving its gas sensing performance. On account of the unique synergetic interaction between Ti3C2Tx and γ-PGA, the response of the flexible Ti3C2Tx/γ-PGA gas sensor to 50 ppm NO2has been improved to a large extent (average 1127.3%), which is 85 times that of Ti3C2Tx (only 13.2%). Moreover, the as-fabricated Ti3C2Tx/γ-PGA sensor not only exhibits a shorter response/recovery time (average 43.4/3 s) compared with the Ti3C2Tx-based sensor (∼18.5/18.3 min) but also shows good reversibility and repeatability (relative standard deviation (RSD) <1%) at room temperature within 50% relative humidity (RH). The improved gas sensing properties of the Ti3C2Tx/γ-PGA sensor can be attributed to the enhancement of effective adsorption and the blocking effect assisted by water molecules. Furthermore, the gas sensing response of the Ti3C2Tx/γ-PGA sensor is studied at different RHs, and humidity compensation of the sensor is carried out using the multiple regression method. This work demonstrates a novel strategy to enhance the gas sensing properties of Ti3C2Tx by γ-PGA modification and provides a new way to realize highly responsive gas detection at room temperature.
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高影响因子
COMPOSITES PART B-ENGINEERING
·
2021
·
IF 9.078
Yanli Li,Bing Zhou,Yong Shen,Chengen He,Bo Wang,Chuntai Liu,Yuezhan Feng,Changyu Shen
The durability and large-scale production of Ti 3 C 2 T x MXene-based composites are the main obstacles in industrialized application. Herein, a scalable blade coating method is demonstrated for fabricating the flexible and durable polyvinylidene fluoride (PVDF)/Ti 3 C 2 T x MXene layered films with compact hierarchical brick-and-mortar structure. The highly aligned MXene nanosheets make the obtained PVDF/MXene films with high electrical conductivity from 21.1 to 214.6 S cm −1 . In combination to the multiple wave reflection in hierarchical layered structure and the interfacial polarization between dielectric matrix and MXene, PVDF/MXene films reveal excellent electromagnetic interference (EMI) performance with an optimal specific EMI shielding effectiveness (SSE/t) of 19504.8 dB cm 2 g −1 at only 17 μm thickness. More importantly, the PVDF/MXene film can withstand the damages from mechanical deformation , hot/cold attack and chemical corrosion, meanwhile maintain a stable EMI shielding performance within floating of 5%. Besides, arising from the surface plasmon resonance effect and high electrical conductivity, the PVDF/MXene film reveals photo/electro-thermal heating abilities with rapid response time, high stability and controllability, which ensure their reliable EMI shielding performance under extremely cold conditions.
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ChemElectroChem
·
2020
·Vol. 7
·期 24
·4922-4930
·
IF 4.154
Hao Wang,Ruixin Zheng,Chaozhu Shu,Jianping Long
Graphical Oxygen vacancy-enriched TiO 2 nanoparticles grown in situ on Ti 3 C 2 T x MXene enhance CO 2 adsorption and Li 2 CO 3 decomposition, thereby remarkably facilitating CO 2 involved electrode reactions for overall Li-CO 2 batteries. Lithium-carbon dioxide (Li-CO 2 ) batteries are considered as a most auspicious energy storage systems owing to their high capacity and the ability of capturing CO 2 . However, there are still some critical issues needed to be addressed before their practical application, such as high charge potential and poor cyclability. Herein, oxygen vacancy-enriched TiO 2 nanoparticles grown in situ on Ti 3 C 2 T x MXene (O V -TiO 2 /MXene) are synthesized as catalysts for Li-CO 2 batteries by facile one-step ethanol heat treatment of the MXene nanosheets. The thermodynamically metastable Ti atom on the surface of MXenes serves as nucleating sites, which play a critical role in generating the relatively stable vacancy-rich TiO 2 nanoparticles. The spontaneously generated oxygen vacancies can enhance CO 2 adsorption, which is beneficial to CO 2 involved electrode reactions. The Li-CO 2 batteries with O V -TiO 2 /MXene electrodes deliver noteworthily reduced charge voltage of 3.37 V at 100 mA g −1 , and a superb cycling performance of 158 cycles. This work highlights the significant role of oxygen vacancies in activating CO 2 in Li-CO 2 batteries, instrumental to the development of high-performance electrocatalysts for Li-CO 2 batteries and beyond.
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Journal of Materials Chemistry A
·
2021
·Vol. 9
·期 8
·5016-5025
·
IF 12.732
Lin Yang,Dongxiao Kan,Chunxiang Dall'Agnese,Yohan Dall'Agnese,Baoning Wang,Ajay Kumar Jena,Yingjin Wei,Gang Chen,Xiao-Feng Wang,Yury Gogotsi,Tsutomu Miyasaka
The unique properties of MXenes that arise from terminating functional groups and oxidation of MXenes make them attractive for application in photovoltaic devices like perovskite solar cells (PSCs). Here, oxidation of Ti3C2Tx hydrocolloid was carried out to tune its properties desirable for an electron transport layer (ETL) in low-temperature processed PSCs. The calculations of the energy levels were carried out using the Vienna ab initio simulation package (VASP) code based on density functional theory (DFT). Oxidation of Ti3C2Tx can generate Ti–O bonds and effectively reduce the macroscopic defects of the film fabricated by spin-coating, while a transition from metallic material to semiconductor occurred after heavy oxidation. A better matching of energy levels between perovskite and ETL layer in the case of a hybrid of oxidized and pristine Ti3C2Tx renders a champion power conversion efficiency (PCE) of 18.29%. The improvement in PCE can be attributed to the increased electron mobility in the ETL, which promotes electron transport and reduces the electron–hole recombination. Hence, by presenting a simple method for high performance in PSCs by MXene-derived materials, this work demonstrates the great potential of these materials for applications in low-temperature processed PSCs and other photovoltaic technologies.
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