NEW JOURNAL OF CHEMISTRY
·
2025
·
IF 2.5
Xinyuan Wan,Xiaojian Xia,Youzhe Zhen,Biaohua Zhang,Deyuan Lin,Yunxiang Chen
Ice accumulation poses significant threats to safety and energy efficiency across aerospace, energy, and transportation sectors. While conventional active de-icing methods suffer from high energy demands and environmental concerns, passive superhydrophobic surfaces offer limited ice prevention. To overcome these limitations, this study develops a robust, multifunctional photothermal superamphiphobic composite by integrating MXene (Ti 3 C 3 T x ) nanosheets with densified wood substrates and a gradient hierarchical coating. Delignified wood exposes hydrophilic cellulose nanofibers, enabling uniform MXene loading (up to 40 wt%) via drop-casting.Densification compresses MXene/wood, enhancing hydrogen bonding, thermal conductivity (photothermal heating rate: 4.9 ℃ s -1 ), and electromagnetic interference (EMI) shielding (80 dB at 40% MXene). A sequentially sprayed resin-based primer (with nylon microparticles) and fluorinated silica nanoparticle topcoat create a micro-nano hierarchical gradient superamphiphobic (SAP) surface, achieving contact angles >150° for water and oils, low adhesion, and self-cleaning functionality. Under 1-sun illumination, the composite rapidly melts ice within 60 s at -10 °C. The material also exhibits high mechanical strength (253.6 MPa after densification; 155-173 MPa post-coating) due to interfacial hydrogen bonding and structural integrity. This work presents a sustainable, active-passive anti-icing strategy with dual functionality in photothermal de-icing and EMI shielding, leveraging renewable wood resources and efficient MXene photothermal conversion.
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DOI
高影响因子
Advanced Science
·
2021
·Vol. 8
·期 18
·2101664
·
IF 16.806
Xianwu Huang,Jiahui Huang,Dong Yang,Peiyi Wu
MXenes as an emerging two-dimensional (2D) material have attracted tremendous interest in electrochemical energy-storage systems such as supercapacitors. Nevertheless, 2D MXene flakes intrinsically tend to lie flat on the substrate when self-assembling as electrodes, leading to the highly tortuous ion pathways orthogonal to the current collector and hindering ion accessibility. Herein, a facile strategy toward multi-scale structural engineering is proposed to fabricate high-performance MXene hydrogel supercapacitor electrodes. By unidirectional freezing of the MXene slurry followed by a designed thawing process in the sulfuric acid electrolyte, the hydrogel electrode is endowed with a three-dimensional (3D) open macrostructure impregnated with sufficient electrolyte and H + -intercalated microstructure, which provide abundant active sites for ion storage. Meanwhile, the ordered channels bring through-electrode ion and electron transportation pathways that facilitate electrolyte infiltration and mass exchange between electrolyte and electrode. Furthermore, this strategy can also be extended to the fabrication of a 3D-printed all-MXene micro-supercapacitor (MSC), delivering an ultrahigh areal capacitance of 2.0 F cm –2 at 1.2 mA cm –2 and retaining 1.2 F cm –2 at 60 mA cm –2 together with record-high energy density (0.1 mWh cm –2 at 0.38 mW cm –2 ).
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DOI
高影响因子
NANOTECHNOLOGY
·
2024
·Vol. 35
·期 34
·345402
·
IF 2.9
Ruixue Liu,Sainan Wei,Bao Shi,Yizhi Ma,Luning Sun,Wei Wang
The continuous advancements in wearable electronics have drawn significant attention toward 2D MXenes materials for energy storage owing to their abundant availability, adaptability, and distinctive physicochemical properties. Two unresolved concerns currently revolve around environmental pollution by F-containing etching and finite kinetics caused because of re-stacking of nanosheets. In this study, Al was electrochemically etched from porous Ti2AlC electrodes without the use of fluorine, through a selective electrochemical etching process in dilute hydrochloric acid. Subsequently, Ti2CTx MXene was vertically grown on carbon fiber (CF) substrates. The resulting Ti2CTx@CF electrodes are lightweight, thin, and flexible, exhibiting a surface capacitance of 330 mF cm−2 at a constant current density of 1 mA cm−2 after 2000 cycles. They display a surface capacitance retention of 96.16% and a high energy density of 45.3 μWh cm−2 at a power density of 0.497 mW cm−2. These metrics underscore the Ti2CTx@CF electrode's commendable multifunctionality, electrochemical performance, ion transport efficiency, and charge storage capacity. Moreover, a flexible energy storage electrode material with a high area capacity was developed by combining Ti2CTx MXene nanosheets, possessing a large specific surface area, with a flexible carbon fabric substrate.
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DOI
PubMed
高影响因子
JOURNAL OF NANOBIOTECHNOLOGY
·
2022
·Vol. 20
·期 1
·1-12
·
IF 9.429
Yu Rongjun,Xue Jian,Wang Yang,Qiu Jingfu,Huang Xinyi,Chen Anyi,Xue Jianjiang
In this work, Ti 3 C 2 T x MXene was identified as efficient nanozyme with area-dependent electrocatalytic activity in oxidation of phenolic compounds, which originated from the strong adsorption effect between the phenolic hydroxyl group and the oxygen atom on the surface of Ti 3 C 2 T x MXene flake. On the basis of the novel electrocatalytic activity, Ti 3 C 2 T x MXene was combined with alkaline phosphatase to construct a novel cascading catalytic amplification strategy using 1-naphthyl phosphate (1-NPP) as substrate, thereby realizing efficient electrochemical signal amplification. Taking advantage of the novel cascading catalytic amplification strategy, an electrochemical biosensor was fabricated for BCR/ABL fusion gene detection, which achieved excellent sensitivity with linear range from 0.2 fM to 20 nM and limit of detection down to 0.05 fM. This biosensor provided a promising tool for ultrasensitive fusion gene detection in early diagnosis of chronic myelogenous leukemia and acute lymphocytic leukemia. Moreover, the manageable catalytic activity of MXene broke a path for developing nanozymes, which possessed enormous application potential in not only electrochemical analysis but also the extensive fields including organic synthesis, pollutant disposal and so on. Graphical Abstract
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PubMed
高影响因子
Nanoscale
·
2022
·Vol. 14
·期 10
·3777-3787
·
IF 8.307
Xuri Wu,Feng Tan,Shizhu Cheng,Yangyang Chang,Xiaochun Wang,Lingxin Chen
The composition of protein corona affects the behavior and fate of nanoparticles in biological systems, which strongly relates to the intrinsic properties of nanoparticles and proteins. Here, three types of MXene Ti3C2Tx nanosheets are prepared by different etching methods, and certain physicochemical characteristics of the nanosheets before and after exposure to human plasma (HP) are characterized. The Ti3C2Tx nanosheets with protein coronas suffer more easily from aggregation than pristine Ti3C2Tx. The composition of protein coronas by LC-MS/MS-based label-free proteomic analysis reveals a high overlap of protein types and functions but a significant difference in relative protein abundance for the three Ti3C2Tx. Immunoglobulins and coagulation proteins are highly enriched while albumin is depleted in the coronas compared with their abundance in original HP. The random forest classification model predicts that the main driving forces for the adsorption of HP proteins on Ti3C2Tx are hydrogen bonding, steric hindrance, and hydrophobic interaction. This study provides insights into the colloidal stability of Ti3C2Tx nanosheets and their interaction with human plasma proteins.
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DOI
PubMed
高影响因子
ACS Applied Nano Materials
·
2025
·
IF 5.5
Ting Li,Siqi Wang,Haowen Liu,Wei Yang,Sane Zhu,Heng Zhang,Chunxiang Wei,Hongdian Lu
Three-dimensional (3D) MXene architectures are promising anode materials for lithium-ion batteries (LIBs) because they alleviate nanosheet restacking, enhance ion transport, and buffer volume changes. However, their electrochemical performance is still restricted by narrow Li+ transport channels, insufficient utilization of active surfaces, and suboptimal conductivity. Herein, we report a confined catalytic carbonization strategy that integrates highly graphitized carbon quantum dots (CQDs) with 3D MXene hollow microspheres to address these challenges. Cationic poly(lactic acid) (c-PLA) microspheres were employed as sacrificial templates and electrostatically assembled with MXene nanosheets to form c-PLA@MXene precursors. Subsequent pyrolysis decomposed the c-PLA and generated CQDs in situ, resulting in honeycomb-like hollow MXene microspheres decorated with CQDs on both surfaces and within interlayer regions. The CQDs served as conductive nanospacers to expand MXene interlayer spacing, suppress nanosheet restacking, reduce charge-transfer resistance, and simultaneously reinforce the framework to buffer volume fluctuations. Benefiting from these synergistic effects, the CQDs/3D-MXene anode delivered a reversible capacity of 517.7 mAh/g at 0.3 C, and maintained 218.4 mAh/g after 1000 cycles at 5 C. This study provides an effective strategy for integrating graphitic nanocarbons with MXene frameworks to achieve high-rate and durable LIB anodes.
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产品关联
DOI
高影响因子
Advanced Sustainable Systems
·
2021
·Vol. 5
·期 12
·2100263
·
IF 6.271
Xiao-Peng Li,Xiaofeng Li,Heguo Li,Yue Zhao,Wei Li,Shouke Yan,Zhong-Zhen Yu
Although solar-driven water evaporation technology is promising for desalination of seawater and purification of wastewater, it is still an issue to enhance the solar steam generation performances by efficient utilization of sustainable solar energy. Herein, 2D ferrous ion-crosslinked Ti 3 C 2 T x MXene-based aerogel films (MAFs) are fabricated as efficient solar steam generation devices by vacuum-assisted filtration of aqueous dispersions of MXene with FeCl 2 followed by freeze-drying. The strong interaction of ferrous ions with –OH groups of MXene sheets and the freeze-drying process are crucial for constructing structurally stable porous films with rough surfaces. Benefiting from the strong solar light absorption capacity and high solar-thermal energy conversion efficiency of MXene sheets, along with the hydrophilic and structurally stable porous architecture of MAFs, the average evaporation rates of an optimal MAF evaporator are as high as 1.67 and 14.52 kg m −2 h −1 with evaporation efficiencies of 94.3% and 91.7% under solar light irradiations of 1 and 10 kW m -2 , respectively. As a promising solar steam generation device, the 2D porous and hydrophilic MAF evaporator is highly efficient in generating clean water from both natural seawater and organic wastewater with satisfactory ion rejection efficiencies of close to 100%.
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高影响因子
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
·
2024
·
IF 11.2
Hao Xu,Shuai Liu,Zhiang Li,Fan Ding,Weimin Wang,Kaikai Song,Ting Liu,Lina Hu
All-solid-state lithium batteries (ASSLBs) are important for enhancing safety across various applications related to lithium-ion batteries (LIBs). Lithium iron phosphate (LiFePO 4 ) is a widely utilized commercial cathode in LIBs, prized for its stable cycling performance, thermal stability, and low cost. However, low electronic conductivity and slow ion diffusion kinetics limit its application at high rates and low temperatures. Herein, Ti 3 C 2 T x MXene nanosheets (NSs) are introduced into the LiFePO 4 cathode. The continuous electron-conducting networks are constructed due to the high electrical conductivity of Ti 3 C 2 T x NSs. Meanwhile, the coordination environment of lithium ions in the cathode is weakened by the oxygenated end groups of Ti 3 C 2 T x NSs, and thus efficient ion-percolating networks are constructed. Therefore, the ionic and electronic conductivities of the modified cathode are significantly improved. Assembled all-solid-state LiFePO 4 /Li full cells with poly(ethylene oxide) as electrolyte exhibits high initial discharged capacities of 91.5 mAh g −1 at 10 C, and capacities of 155.1 mAh g −1 after 1000 cycles at 1 C with a retention rate of 93.8%. Furthermore, the cells still deliver excellent performance at high loading, room temperature, and low temperature. This work offers a facile and scalable strategy for designing high-performance ASSLBs.
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高影响因子
MATERIALS RESEARCH BULLETIN
·
2022
·
IF 5.6
Yi Hu,Shaojie Pang,Guoyu Yang,Xuming Yao,Chuanbing Li,Jianjun Jiang,Yujun Li
To improve the weak fiber-matrix interface of carbon fiber composites, two-dimensional transition metal carbides or nitrides of MXene (Ti 3 C 2 T x ) nanosheets were introduced onto the surfaces of carbon fiber (CF) through electrophoretic deposition (EPD) technology for the first time. The MXene deposited CF was further infiltrated with epoxy resin by vacuum-assisted resin infusion (VARI) to fabricate CFRP composites. Results indicated that the MXene nanoparticles deposited on the surfaces of CF could significantly enhance fiber surface energy and wettability as well as surface roughness, which in turn remarkably increased the interfacial strength and flexural properties of fiber-resin. The MXene/oxidised CF/epoxy composites showed a 53% improvement in interlaminar shear strength (ILSS), a 22.2% enhancement in flexuous strength, and a 29.2% increment in monofilament tensile strength than non-functionalised specimens. This simple and effective strategy provided a promising approach for effective CFRP modification and continuous industrial production.
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DOI
高影响因子
CERAMICS INTERNATIONAL
·
2021
·
IF 4.527
Yu Zeng,Shipeng Rao,Chenhan Xiong,Guoping Du,Zhaoyang Fan,Nan Chen
Dielectric polymer composites with conducting fillers would have great potential for diverse applications if their severe leakage loss could be addressed. In this regard, ternary composites using both ceramic and conducting materials as fillers might be an enabler for high dielectric constant and low dielectric loss. Herein, ternary composites with both Ti 3 C 2 T x MXene conducting nanosheets and CaCu 3 Ti 4 O 12 (CCTO) dielectric particles embedded in silicone rubber were studied. It was found that a ternary composite with 1.2 wt% (0.40 vol%) Ti 3 C 2 T x MXene and 12 wt% (2.58 vol%) CCTO could provide an overall superior performance that include a high dielectric constant of 8.8, low dielectric loss of less than 0.0015, good thermal stability up to 450 °C, and excellent mechanical properties with tensile strength of 569 kPa, elastic module of 523 kPa and elongation at break of 333%. The outstanding performance is attributed to the improved uniform dispersion and good interfacial compatibility of mixed fillers in the polymer matrix , suggesting ternary composites might be a better option over their binary counterparts in preparing high performance dielectric composites.
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高影响因子
Journal of Energy Storage
·
2024
·
IF 8.9
Xiaohui Lu,Xinglin Yang,Jie Kong,Jianye Su,Quanhui Hou
One of the most important technologies for the sustainable development of energy in the future is solid-state hydrogen storage. This study employed etching methods to fabricate two-dimensional layered catalyst Mo 2 Ti 2 C 3 MXene, which was compared with unetched MAX phases Mo 2 Ti 2 AlC 3 and Ti 3 C 2 , as well as Mo 2 C. Through mechanical ball milling, these materials were mixed with MgH 2 to prepare composite materials, including MgH 2 + Ti 2 C 3 , MgH 2 + Mo 2 C, MgH 2 + Mo 2 Ti 2 AlC 3 , and MgH 2 + Mo 2 Ti 2 C 3 . According to the study, Mo 2 Ti 2 C 3 demonstrates the synergistic catalytic actions of Ti and Mo in contrast to Ti 2 C 3 and Mo 2 C. The composite material MgH 2 + Mo 2 Ti 2 C 3 lowers the initial dehydrogenation temperature of MgH 2 to 180 °C, which is 165 °C lower than pure MgH 2 . After 30 min at 250 °C, the dehydrogenation amount is approximately 5.85 wt%. Hydrogen absorption begins at 40 °C and reaches approximately 5.75 wt% at 150 °C. Additionally, it maintains a reversible hydrogen storage capacity of up to 96 % even after 20th cycles at 300 °C. This is because Mo 2 Ti 2 C 3 has one less layer of Al than Mo 2 Ti 2 AlC 3 , which results in a wider interlayer spacing, more active sites for MgH 2 , and facilitates hydrogen molecule dissociation and recombination.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Sairao Zhao,Xiao Luo,Yongfa Cheng,Zhixiang Shi,Tao Huang,Shanghua Yang,Haojian Zheng,Yun Bi,Jun Zhang,Qiuyue Shi,Minglei Cao,Chuankun Zhang,Yang Yue,Yanan Ma
Ti 3 C 2 T x MXene with unique physical and chemical properties are recently sparked tremendous interest in the energy storage field. Compared to Ti 3 C 2 T x , V 2 CT x MXene is a more promising candidate for energy storage due to a low number of atomic layers in the V 2 CT x structure and varied valence states of vanadium. Herein, we report a flexible V 2 CT x electrode with different layers (named accordion-like V 2 CT x , multi-layer V 2 CT x , and few-layer V 2 CT x, respectively) fabricated by using electrophoretic deposition, then assembled a flexible zinc ion hybrid capacitor (ZIHC) by virtue of zinc anode and gel electrolyte. The areal capacitance of few-layer V 2 CT x based ZIHC is 54.12 mF cm −2 at 0.1 mA cm −2 , which is greater than those of accordion-like V 2 CT x and multi-layer V 2 CT x based ZIHC. The outstanding electrochemical performance of few-layer V 2 CT x based ZIHC is attributed to its richer active sites and shorter ion transport routes. Additionally, the few-layer V 2 CT x based ZIHC also owns well cycling stability, with 81.48 % capacity retention after 8000 cycles, and a low self-discharge rate of 6.4 mV h −1 , making it suitable for wearable devices. So, the V 2 CT x based ZIHC is integrated with a Ti 3 C 2 T x based pressure sensor to monitor diverse human activities, demonstrating its steady and long-term power supply capacity as the energy storage device.
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高影响因子
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