ADVANCED FUNCTIONAL MATERIALS
·
2025
·
IF 19
Yinan Li,Liulian Huang,Zhibin He,Jianguo Li,Chenglong Fu,Qinghong Zheng,Lihui Chen,Yonghao Ni
Solar-driven evaporators have emerged as a sustainable strategy for water purification and energy harvesting. Designing advanced systems that achieve high evaporation performance, long-term operational stability, and resistance to salt crystallization remains a significant challenge. In this study, an innovative Janus membrane is proposed that addresses these challenges, featuring a super hydrophilic cellulose nanofiber (CNF)@Hexadecyl Trimethyl Ammonium Bromide (CTAB)-MXene layer and a superhydrophobic polytetrafluoroethylene (PTFE) layer. CTAB modification of MXene enhances its interlayer spacing and specific surface area, enabling rapid water transport and efficient solar energy absorption of the CNF@CTAB-MXene layer. A PTFE layer is sputter-deposited onto CNF@CTAB-MXene layer, effectively preventing salt accumulation and membrane fouling, with plasma pre-treatment ensuring excellent interfacial bonding between these two layers. Under 1 sun illumination, the CNF@CTAB-MXene/PTFE Janus evaporator achieves a remarkable evaporation rate of 1.51 kg m −2 h −1 with outstanding salt resistance. The synergy between superhydrophilic and superhydrophobic layers facilitates efficient water transport while maintaining long-term stability without performance degradation. Additionally, the evaporator generates a voltage of 343.8 mV during thermoelectric power generation, and its unique design allows electricity generation from wind energy at night. This integrated system provides an advanced and durable solution for water-power co-generation, offering practical benefits for off-grid or remote regions.
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高影响因子
SURFACE & COATINGS TECHNOLOGY
·
2024
·
IF 5.3
Han Yan,Leifeng Shi,Guanzhang Liu,Lin Zhang
Excellent wear resistance is essential for coatings with anti-corrosion and self-warning functions. However, current smart coatings often fail through external friction damage. Adjusting the micro-nano structure of fillers is beneficial to the realization of synergistic effects. Here, mesoporous silica nanocontainers are in-situ loaded on MXene sheets (MSN-load-MX), and then incorporated into an epoxy coating (MSN-load-MX@EP). The experimental approaches include corrosion electrochemical testing, scratch testing, reciprocating sliding friction test, and molecular dynamics (MD) simulation, providing a comprehensive assessment of the protection performance. Based on the experimental analysis and MD results, MSN-load-MX can enhance the interaction strength between resin molecular chains, and perfect the coating structure, thus showing the effective defect warning and physical barrier effects. After 4 weeks of immersion, the |Z| 0.01Hz value of MSN-load-MX@EP is two orders of magnitude higher than Pure EP and 66.81 % higher than MSN/MX@EP, indicating good corrosion resistance. Besides, MSN-load-MX@EP exhibits a stable friction coefficient that is lower than those of Pure EP and MSN/MX@EP, and its wear rate is decreased by 41.59 %. MXene-based lubrication film can be smoothly generated on the friction interface and isolates the direct contact between the two friction pairs, leading to the decrease in the friction intensity and shear stress. Finally, MSN-load-MX@EP not only maintains good corrosion protection performance, but also shows excellent anti-friction and wear resistance. This work advances the wear resistance of the smart anti-corrosive coating and expands the potential applications of MXene/mesoporous silica composite epoxy coating in harsh environments.
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Surfaces and Interfaces
·
2025
·
IF 6.3
Ze-Long Bao,Wen-Hao Geng,Song-Yi Zhang,Peng-Fei Qian,Li-Chao Jing,Xuan-Chen Liu,Tong-Yu Li,Yu-Long Guo,Ru-Yu Chang,Hong-Zhang Geng
Ubiquitous electromagnetic waves have a negative effect on precision instruments and damage human health. Therefore, multifunctional and versatile flexible transparent conductive films, which can solve the challenge of microelectronic device encapsulated and protected in harsh conditions (e.g., extreme temperature) in specific scenarios, are demanded to process electromagnetic shielding and electric heating properties. Herein, AgNWs/MXene@Ni/PET films were fabricated by MXene template-guided electrochemical deposition of nickel nanosphere as flexible transparent conductive films. The films exhibit excellent optoelectrical properties (9.8 Ω/sq @ transparency 80.3%), splendid EMI shielding performances (35.1 dB), outstanding electric heating performance (85°C at 4 V), and rapid heating capability (reaching the saturation temperature with 40 s), which are potential to be widely applied under the complex surrounding as electromagnetic shielding and electric heating. Noticeably, nickel nanosphere are regarded as resistor-capacitor circuit model on the surface of MXene, forming the structure of the capacitor. Furthermore, magnetic nickel nanospheres have synergistic effect with dielectric MXene and AgNWs, defined Dielectric-Magnetic-Dielectric synergistic absorption. In addition, Ni nanosphere generate dielectric dipole interactions with MXene, to enhance the capability of absorbing EMW. Finally, this work has the potential to be conducive to practical and commercial applications as flexible transparent electromagnetic interference and electric heating devices.
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高影响因子
FUEL
·
2024
·
IF 6.7
Jianhao Lao,Yanling Zhu,Fen Xu,Lixian Sun,Songwen Fang,Qiwei Shao,Lumin Liao,Yanxun Guan,Yongjin Zou
Metal-organic frameworks (MOFs), when directly used as electrode materials, encounter issues due to their poor conductivity and low energy density, which restricts their practical application. In this work, the MXene-fibers has been obtained by treating flake Mxene with KOH solution firstly. Then, a novel composite of nanoscale one-dimensional (1D) Mxene-fibers loaded with MOFs-derived metal sulfides (Ni(Co) 3 S 4 @MXene-fibers) has been synthesized. The electrochemical analysis results show that the specific capacitance of Ni(Co) 3 S 4 @MXene-fibers reaches 829.4C g −1 at 1 A g −1 . Moreover, the asymmetric device (Ni(Co) 3 S 4 @MXene-fibers//AC) has an energy density of 63.3 Wh kg −1 at a power densi ty of 850 W kg −1 . This thanks for the 1D MXene-fibers. SEM and other characterization demonstrate that the 1D MXene-fibers can not only avoid the accumulation of Ni(Co) 3 S 4 , but also construct a stable structure with fast charge transfer ability. Besides, it is more conducive to the redox reaction of active substances loaded on its surface, which improves the electrochemical performance.
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Surfaces and Interfaces
·
2024
·
IF 5.7
Xu Yuan,Wei Wang,Cuiting Du,Qianqian Kang,Zhipeng Mao,Shougang Chen
The present study reports on a composite coating exhibiting noise reduction and anti-corrosion properties. We successfully synthesized a Ti 3 C 2 T x @TiO 2 -PDA composite filler that involves growing porous TiO 2 onto lamellar MXene (Ti 3 C 2 T x) material and further coating both surfaces with a layer of polydopamine (PDA) material, providing the coating material with a micro-cavity structure to enhance its ability to dissipate acoustic energy and resist corrosion. And we incorporated it into the prepared disulfide bond-modified polyurethane coating matrix. Experimental tests and finite element analysis demonstrate that the coating can reduce environmental noise by approximately 33% while maintaining a maximum impedance modulus |Z| of 5.51 × 10 7 Ω·cm 2 after immersion in a 3.5 wt% NaCl solution for 25 days. The porous structure of the composite filler provides micro-cavities within the coating, while its lamellar structure acts as a physical barrier against corrosive media. Furthermore, introducing disulfide bonds enhances acoustic energy dissipation within the coating. Consequently, this coating exhibits exceptional corrosion resistance and noise reduction performance, presenting significant potential for applications in marine equipment's noise reduction and corrosion prevention.
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ADVANCED FUNCTIONAL MATERIALS
·
2024
·
IF 18.5
Zhaochuan Yu,Chao Deng,Jianglei Sun,Xing Zhang,Yuqian Liu,Chao Liu,Farzad Seidi,Jingquan Han,Qiang Yong,Huining Xiao
Currently, multifunctional MXene-integrated wearable textiles (MWTs) are particularly appealing due to their various applications such as health monitoring, smart protection, and medical treatment. However, scalable manufacture of durable, stable, and high-performance multifunctional MWTs still face challenges due to the poor oxidation stability of MXene and low utilization of precursor titanium aluminum carbide (MAX). Herein, an improved preparation strategy for zinc ion (Zn 2+ ) intercalation is proposed to create high antioxidative MXene (ZM) and exceptionally conductive and printable gel ink based on MXene sediments (ZMS-ink), while multifunctional wearable textiles are fabricated using spray-coating and screen-printing techniques on cellulosic nonwoven textiles (CNWs), achieving the complete utilization of MXene precursor. Benefiting from the inherent disordered stacking and porous structure of CNWs, along with the highly conductive ZM and ZMS-ink, as-prepared smart, wearable and green-based pressure sensor offered proper breathability, high sensitivity (2602.26 kPa −1 ), wide sensing range (0–141 kPa), and excellent cycling stability (>5000 cycles). Additionally, the sensor exhibited efficient photothermal/photodynamic therapy antibacterial activity and exceptional electromagnetic interference shielding performance (57.5 dB). Therefore, this work paves the way for the future development of integrated and scalable multifunctional wearable devices building on the environmental-friendly CNWs incorporated with fully utilized MAX, offering a green and cost-effective approach.
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高影响因子
CARBON
·
2024
·
IF 10.5
Ze Wu,Enjie Zhu,Youqiang Xing,Peng Huang,Bingjue Li,Lei Liu
Electrochemical ionic actuators have garnered significant attention following their discovery due to their potential to supplement or replace conventional rigid actuators, owing to their ability to achieve precise control over bending displacement across a wide range. This paper employs an MXene/CNT@Fe 3 O 4 electrode in electrochemical ionic actuators, which consists of a three-dimensional conductive network comprising a one-dimensional carbon nanotube loaded with ferroferric oxide magnetic particles (CNT@Fe 3 O 4 ) and a two-dimensional Ti 3 C 2 T x MXene. This actuator is characterized by high bending displacement (12.3 mm), a comprehensive response range (0.1–10 Hz), fast response time (≈5 s), and excellent durability (5 h, 93% actuation retention). The exceptional characteristics mentioned above can be attributed to manipulating the CNT@Fe 3 O 4 distribution within the MXene layers using magnetic regulation. This approach enhances dispersion and facilitates the formation of a three-dimensional conductive network structure with MXene, enabling efficient and multi-directional ionic migration. Moreover, the artificial muscles have successfully replicated flytraps' predation and birds' claw grasping. This study presents a new idea for the electrode design of electrochemical ionic actuators, elucidating the significant potential of MXene-based soft actuators in the domains of artificial muscles and bionics.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2024
·
IF 8.1
Yangyang Dai,Tian Fang,Shumin Li,Yuanyuan Wang,Suyue Zhong,Wenjun Su,Jian Li
While mixed matrix membranes (MMMs) containing two-dimensional (2D) layered materials (such as, GO, g-C 3 N 4 and MXene , etc.) have revealed potential application prospects for gas separation applications, it still faces a serious challenge to enhance the performance of CO 2 separation. Owing to the structural defects of g-C 3 N 4 nanosheets produced during the exfoliation process, which has greatly reduced the gas selectivity. Herein, we describe the construction of g-C 3 N 4 -MXene/Pebax MMM composed by MXene modified the structural defects in g-C 3 N 4 nanosheets to surmount the low gas selectivity of g-C 3 N 4 membrane. However, the stacking of nanosheets on each other hinder the gas transport channels. The TiO 2 nanoparticles derived in-situ from MXene semi-oxidation can support an intermediate layer between g-C 3 N 4 nanosheet and MXene nanosheet to expand the gas transport channels. Eventually, a novel g-C 3 N 4 -TiO 2 @MXene/Pebax MMM was obtained that exhibited maximum CO 2 permeability of 1673.69 Barrer in separation of CO 2 /CH 4 , CO 2 /N 2 selectivity of 45.13, and CO 2 /CH 4 selectivity of 47.76, exceeding the bond 2008 limit on Robeson. What's more, the MMM within 100 h (1 bar and 298 K) are measured to have outstanding separation performance. Overall, this concept offers a novel strategy to enhance CO 2 separation by MXene modified defects in g-C 3 N 4 nanosheets.
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高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Zhanying Yu,Xiyu Wang,Xinlong He,Runjing Li,Aimin Zhang,Jihai Zhang
Zinc is an ideal energy storage material because of its low toxicity, nonflammability, and good biocompatibility. However, the commercial application is seriously hindered due to problems such as dendrite growth, hydrogen evolution, and interface passivation caused by “dead zinc” in the process of cyclic deposition. Herein, a nanoscale deposition dispersion model is designed in order to achieve directional deposition and uniform distribution of zinc ions for the growth of interfacial dendrites. Liquid metal GaIn was combined with Mxene for this nanostructure, which provides a rapid ion transfer channel to achieve lower overpotentials, a more uniform electric field distribution, and stronger corrosion resistance in a core–shell structure to achieve interface reaction suppression. The material was coated on the surface of the zinc metal as an artificial protective layer. It has a better cycle life at 1 mA·cm–2 compared with the bare Zn metal anode, achieving a long cycle time of 1100 h and an ultralow voltage lag (28.1 mV). It maintains the stability for 1000 cycles at 1 mA·cm–2 after assembling the complete battery. This provides a way to improve the performance of zinc-ion secondary batteries and paves the way for the next generation of energy storage devices.
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PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Xiaoning Yu,Haoqi Pan,Qing He,Jing Yang,Mingming Xiao,Jin Xu,Wei Wang,Xianjun Yu,Si Shi
The inhibitory immune microenvironment of pancreatic cancer prevents the infiltration and activation of antitumor immune cells. Therefore, breaking the barrier of pancreatic cancer immune microenvironment is the key to activate antitumor immunity, but there is still no effective method reported so far. Immunogenic cell death (ICD) of tumor cells is considered to be an effective method to activate antitumor immunity. Accordingly, we designed and synthesized a dual-gated nanodrug based on MXene, which can not only specifically target pancreatic cancer cells and induce ICD, but also effectively regulate the immune microenvironment. Tumor cells undergo ferroptosis, a typical kind of ICD, which allowed a large number of tumor-associated antigens (TAA) to be released from the cytoplasm into the microenvironment. Dendritic cells (DCs) were attracted and promoted maturation. Activated DCs processed and presented TAA to T cells, which was a necessary process for T cell activation and ultimately heated up the cold tumor immune microenvironment of pancreatic cancer. In general, our work is an interesting and important exploration, aiming to apply MXene nanoparticles with great potential to the treatment of pancreatic cancer, and provide new ideas and directions for the biomedical application of related materials.
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高影响因子
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
·
2024
·
IF 8.1
Mengxia Shen,Xinyu Xu,Jiale Qi,Xiaojie Li,Bailiang Xue,Meng Zhu,Zhengliang Zhang,Xunfei Zheng,Bin Li,Zhen Shang
With the miniaturization of electronic devices, the creation of efficient and lightweight electromagnetic interference (EMI) shielding materials is of imminent significance. In this context, we reported an electromagnetic shielding membrane with hydrophobic, antioxidative, and high temperature stability. The chemically cross-linked Aramid nanofibers (ANF)/MXene@Ga/Gd 2 O 3 (CAMG) nanocomposite membranes exhibit a considerable tensile strength and possess exceptional flexibility. The CAMG shielding membranes demonstrate multiple heterogeneous interfaces and a magnetic-dielectric synergistic system, thereby effectively enhancing the absorption shielding efficiency, with the specific shielding effectiveness per unit volume (SSE/t) reaching 6788 dB cm 2 g −1 . Furthermore, the composite membranes demonstrate remarkable electrothermal capabilities, acting as pliable heaters with notable, swiftly replicable, and consistent electrothermal effects at reduced voltages. Additionally, they possess superior heat dissipation efficiency and ensure a uniform heat dispersion. The exceptional electromagnetic shielding performance and multifunctionality of the C-ANF/MXene@Ga/Gd 2 O 3 shielding membranes imply their instructive relevance in next-generation fields such as flexible electronics and aerospace.
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高影响因子
Nano-Micro Letters
·
2025
·Vol. 17
·期 1
·1-22
·
IF 36.3
Shao Runze,Wang Guilong,Chai Jialong,Lin Jun,Zhao Guoqun,Zeng Zhihui,Wang Guizhen
The Janus-type multifunctional ultra-flexible polytetrafluoroethylene-carbon nanotube-Fe 3 O 4 /MXene (FCFe/M) membranes were fabricated via a shear-induced in situ fibrillation technique followed by vacuum-assisted filtration.
Thanks to the strategic distribution of the MXene conductive reflection layer and the silk-like FCFe electromagnetic wave’s absorption layer, the membranes achieve robust electromagnetic interference shielding and effective antireflection through the absorption-reflection-reabsorption mechanism.
The membranes exhibit exceptional thermal management performance, including efficient heat dissipation and electrothermal/photothermal conversion capabilities, further enhancing their promising potential for applications in flexible wearable technologies.
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高影响因子
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