CERAMICS INTERNATIONAL
·
2020
·
IF 3.83
Qiang Liu,Junjie Yang,Xiaogang Luo,Yifei Miao,Yang Zhang,Wenting Xu,Lijun Yang,Yunxia Liang,Wei Weng,Meifang Zhu
As shining stars of 2-dimensional materials, transition metal carbides (MXene) and transition metal oxides have attracted much interest in various energy fields due to their excellent conductive and electrochemical properties . However, big challenge still remains in the accessibility of high-performance fibrous electrodes for flexible supercapacitors . In this paper, MnO 2 nanorods are loaded on MXene sheets to obtain MnO 2 @MXene composites by a facile hydrothermal method , which are subsequently coated on carbon nanotube fibers (CNTFs). With a fine control on morphology, the resulting MnO 2 @MXene/CNTF electrode exhibits a high specific capacitance of 181.8 F/g at 1 A/g, a capacitance retention of 91% after 5000 charge-discharge cycles, as well as superb flexibility, i.e., neglected capacitance loss at a bending angle of 180°. The as-fabricated flexible composite fiber opens a new door for transition metal carbides and transition metal oxides with great potential in flexible electronics.
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DOI
高影响因子
ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Zihan Wang,Liuxin Yang,Yang Zhou,Chen Xu,Mi Yan,Chen Wu
Cross-linking network structures are critical to construct flexible and lightweight electromagnetic (EM) wave absorbers, for which effective regulation of the EM parameters is essential. Herein, a versatile strategy has been developed by interconnecting carbon fibers with NiFe-layered double hydroxide (NiFe LDH)/MXene derivatives. The large-sized flaky morphology and conductive nature of the interconnectors induce the percolation effect in the fabric networks with ultralow addition. As such, efficient adjustment of the EM parameters can be achieved by tuning the content of the interconnectors around the percolation threshold, giving rise to an optimal reflection loss (RL) of −58.0 dB and a wide effective absorption band (EAB) of 7.0 GHz at a thickness of 2.5 mm under the incorporation of 7.0 wt % NiFe LDH/MXene. This work provides insights on constructing percolation networks and effective manipulation of electronic and magnetic properties, which can be extended to various areas such as sensing, catalysis, and energy storage.
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DOI
PubMed
高影响因子
MICROCHEMICAL JOURNAL
·
2022
·
IF 5.304
Yan Zhang,Lu Zhang,Chenxing Li,Jingxuan Han,Wenwei Huang,Jiayi Zhou,Yongqiang Yang
Dopamine (DA) detection is essential for diagnosis and evaluation of diseases such as Parkinson’s, Alzheimer and schizophrenia. However, conventional electrochemical sensors are vulnerable to biofouling in complex biological fluids, which leads to significant decrease in sensor performance. Ti 3 C 2 T x MXene, a novel 2D material with excellent conductivity and hydrophilicity, is a potential antifouling material for electrodes. But oxidation can strongly influence the performance of MXene. In this work, an antifouling electrochemical sensor for DA detection was fabricated by combining MXene and holey graphene (HG). Multilayer MXene (M−MXene) and single-layer MXene (S-MXene) were combined with HG to form a 3D porous network. HG not only prevented the restacking of MXene but it also improved the stability of MXene. Owing to the excellent conductivity and large surface area, S-MXene/HG modified electrode had a fast electron transfer and excellent electrocatalytic activity for DA compared with M−MXene/HG. Furthermore, S-MXene/HG possessed higher surface hydrophilicity and enhanced biofouling resistance than M−MXene/HG and HG modified electrode. S-MXene sensor displayed excellent analytical performance for DA and antifouling ability in complex fluids. It offers new promising possibilities for its clinical application.
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2023
·
IF 6.2
Xudong Liu,Yong Liu,Shangli Dong,Xuefeng Zhang,Lu Lv,Sirui He
Constructing 3D porous MXene from 2D nanosheets is the most efficient method to avoid restacking of nanosheets and enhance the application of nanomaterials at macroscale. Direct foaming from solids is an ideal means to obtain 3D porous structure. However, MXene is difficult to be physically foamed because its plasticity is not enough. Herein, we invent a chemical foaming method to convert MXene films into foams with good porosity. The wet film of Ti 3 C 2 T x precursor with interlayer water has super high plasticity, which is more conducive to the introduction of foaming agent and the foaming process. The obtained Ti 3 C 2 T x foams exhibits good porosity and higher specific surface area than Ti 3 C 2 T x films, resulting in outstanding capacitive performance (426 F g −1 at 1 A g −1 ) with good rate performance (190 F g −1 at 10 A g −1 ) and excellent cycle stability (92% retention after 10,000 cycles). The supercapacitor fabricated with Ti 3 C 2 T x foams display an outstanding energy density of 14.1 Wh kg −1 at a power density of 250 W kg −1 . Moreover, the foaming method creates a up-bottom construction patterns, which is simple, low cost and easy for scalable fabricating porous MXene.
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DOI
高影响因子
RARE METALS
·
2022
·Vol. 41
·期 5
·1626-1636
·
IF 6.318
Wang Hui-Qi,Zhao Ya-Xin,Gou Li,Wang Li-Yong,Wang Mei,Li Ying,Hu Sheng-Liang
The fast and reversible sodiation/desodiation of anode materials remains an indelible yet fascinating target. Herein, a class of the densely packed Si/MXene composite microspheres is constructed and prepared, taking advantages of the synergistic effects of the activated Si nanoparticles and conductive flower-like MXene microspheres with ample ion-diffusion pathways. Consequently, the intrinsic MXene nanosheets with intelligently regulated interlayer spacing can accommodate the volume change induced strain during cycling, and the strong interaction between the Si and MXene matrix greatly contributes to the robust structural stability. As expected, the Si/MXene composite architecture exhibits boosted sodium storage performance, in terms of an inspiring reversible capacity of 751 mAh·g −1 at 0.1 A·g −1 , remarkable long-term cycling stability of 376 mAh·g −1 at 0.1 A·g −1 over 500 cycles, and outstanding rate capability (after one consecutive current density changing from 0.1 to 2.0 A·g −1 , a large capacity of 275 mAh·g −1 is regained after suddenly returning the initial current density back to 0.1 A·g −1 and in the subsequent 200 cycles this composite architecture anode still delivers a capacity of 332 mAh·g −1 ). The kinetics analysis indicates superior pseudocapacitive property, high electronic conductivity, and favorable sodium-ion adsorption and diffusion capability, confirming fast sodium storage performance. Impressively, ex-situ X-ray diffraction and selected area electron diffraction characterizations corroborate the formation of NaSi 6 as the main sodiation products during the reversible evolutions of cycled proceeding with sodium-ion insertion. This work sheds light on the elaborate design of silicon-based nanostructured anodes towards advanced high-performance sodium-ion batteries. Graphical abstract
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高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2022
·
IF 4.598
Ping Xiao,Guodong Zhu,Xiaohong Shang,Bin Hu,Boshuang Zhang,Zhaoyu Tang,Jianmao Yang,Jianyun Liu
The Fe-metal organic framework decorated MXene (Fe-MOF/MXene) was in-situ synthesized by one-step hydrothermal method in the presence of MXene. Using Fe-MOF/MXene as modifier, the obtained Fe-MOF/MXene electrode presented excellent electrochemical activity due to the high surface area and good conductivity of MXene. A sensitive arsenite electrochemical sensor was fabricated based on the strong As-hydroxyl bonding at the Fe-MOF/MXene electrode, confirmed by X-ray photoelectron spectroscopy. Cyclic voltammetry characterization indicated that MXene facilitated the charge transfer with enhanced electrochemical response. The Fe-MOF/MXene modified electrode exhibited super-high current response to As(III) by square wave anodic stripping voltammetry, with extremely high sensitivity (8.94 µA·(ng·L −1 ) −1 ·cm −2 ) and super-low limit of detection (0.58 ng·L −1 ). The analysis of the real water demonstrated that the Fe-MOF/MXene-based sensor was feasible for the detection of As(III) in practical application.
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高影响因子
ACS Applied Materials & Interfaces
·
2022
·
IF 10.383
Qindong Xie,Yi Zhao,Difei Liang,Linbo Zhang,Qiye Wen,Fu Tang,Min Hu,Longjiang Deng,Peiheng Zhou
MXene aerogels with a three-dimensional (3D) network structure have attracted increasing attention for lightweight electromagnetic wave absorbers. It is intriguing to expand their absorption band, i.e., to the booming terahertz (THz) region, and explore multifunctionality. Herein, we assemble MXene (Ti3C2Tx)-based hybrid aerogels into an aligned lamellar architecture using a bidirectional freezing technique. With air pore size and lamellar layer spacing comparable to THz wavelengths, high porosity of the aerogels allows nearly isotropic absorption of 99% and electromagnetic interference (EMI) shielding effectiveness with a remarkable value of 57.5 dB, in the ultrabroad bandwidth ranging from 0.5 to 3.0 THz. Simultaneous, strain-sensing response reflects the macroscopic anisotropy of the network structure of the aerogels. The improved sensitivity is measured for the out-of-lamellar layer plane under 0–30% strain. The corresponding long-term stability and durability persist over 120 stretching–releasing cycles. Our findings thus not only expand multiple functions of MXene in an anisotropic 3D macroscopic form but also clarify its nearly isotropic absorption in the THz band.
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DOI
高影响因子
Nano-Micro Letters
·
2019
·Vol. 11
·期 1
·1-17
·
IF 9.043
Cao Wentao,Ma Chang,Tan Shuo,Ma Mingguo,Wan Pengbo,Chen Feng
An ultrathin and flexible carbon nanotubes/MXene/cellulose nanofibrils composite paper with gradient and sandwich structure was successfully fabricated via a facile alternating vacuum-assisted filtration process.
The composite paper exhibits excellent mechanical property and electromagnetic interference shielding performance.
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DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2025
·
IF 7.7
Sen Lin,Hao Zhang,Jiuqi Sun,Xuliang Lu,Zhiwei Tuo,Zhaohua Lin,Suqian Ma,Yunhong Liang
The development of flexible materials with green actuation, rapid responsiveness, and environmental adaptability is vital for next-generation intelligent actuators. Here, we report a humidity-responsive composite film based on the synergistic assembly of agarose (AG), Ti₃C₂Tₓ MXene, and aminated multi-walled carbon nanotubes (MWCNTs-NH₂). Dual crosslinking with Ca²⁺ and glutaraldehyde (GA) yields a dense, stable, multiscale network (AMC-CG) that enhances structural integrity and water transport. The AMC-CG film exhibits excellent thermal stability and mechanical strength. Under a 35 % humidity gradient, it achieves a maximum bending angle of 166.99°, a response speed of 282.81° s⁻¹ , and a recovery speed of 42.96° s⁻¹ , maintaining performance over 500 cycles. It also shows strong anti-swelling behavior in pH-extreme solutions and retains actuation in dusty and oily environments. A soft gripper system built with AMC-CG enables autonomous object manipulation in confined spaces, highlighting its low-power, programmable, and eco-friendly potential. and expanding the application of humidity-responsive actuators toward microoperation devices and flexible actuation systems.
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产品关联
DOI
高影响因子
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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产品关联
DOI
高影响因子
FIBERS AND POLYMERS
·
2025
·
IF 2.3
Qu Sitian,Lin Tao,Yin Xuefeng,Xing Luyi,Li Chenyang,Peng Guoqiang
The rapid advancement of information technology has led to an increase in electromagnetic interference (EMI) issues, as electronic devices are now widely utilized, requiring materials with greater versatility. This study developed an efficient preparation method utilizing alternating vacuum filtration (AVF) technology to overcome this issue. Through the precise control of the deposition sequence of cellulose nanofibers (CNF)/Na-bentonite (NB) and MXene conductive layers, this study successfully prepared CNF/NB–MXene composite films with a well-structured alternating layered structure. The composite film exhibited a distinctive "brick–mortar" architecture, imparting favorable mechanical properties (i.e., 8.17 MPa tensile strength). Measuring 41 μm thick, the composite film exhibited a conductivity of 189.6 S m –1 , along with EMI shielding effectiveness (SE) of 34.3 dB and SE per unit thickness (SE/t) of 8365.85 dB cm –1 in the X-band. Furthermore, the composite film demonstrated a high limiting oxygen index (LOI) of 36.5% and a residual carbon content exceeding 70%, which indicated exceptional flame retardancy. Consequently, the alternating layered composite film exhibited superior EMI performance and flame-retardant performance, making it particularly advantageous in harsh environments such as high temperatures.
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产品关联
DOI
高影响因子
IONICS
·
2025
·
IF 2.6
Ding Zhengyu,You Maoyu,Xin Binjie,Newton Amin
Supercapacitors require electrode materials that integrate high specific capacitance, and efficient ionic transport. Herein, a novel MXene/short carbon nanofiber@polyaniline (MSCPM) hybrid membrane was synthesized via chemical oxidative polymerization and vacuum-assisted filtration. By optimizing the mass ratio of MXene to short carbon nanofiber@polyaniline (SCNF@PANI), a three-dimensional hierarchical architecture was achieved, where MXene nanosheets interlocked with PANI-coated CNFs to form covalent interface bonds. This design leverages the metallic conductivity of MXenes for rapid electron transport, CNFs’ mechanical rigidity of CNFs to maintain structural integrity, and PANI’s pseudo-capacitance of PANI for enhanced energy storage. The hybrid membrane exhibited exceptional electrochemical performance, achieving a specific capacitance of 601.8 F g − 1 at 5 mV s − 1 , surpassing most reported MXene-based materials. Notably, the composite retained 81.5% of its capacitance after 10,000 cycles, demonstrating remarkable cycling stability. The synergistic integration of hydrophilic MXenes, porous CNFs, and polar PANI functionalities ensures efficient electrolyte infiltration and ion diffusion. Simultaneously, the covalent interface bonds enhance the charge transfer efficiency and structural integrity. This work establishes a scalable strategy for high-performance supercapacitor electrodes, advancing the integration of MXenes with carbon nanomaterials and conductive polymers. These design principles provide new insights into interfacial engineering for multifunctional energy storage applications, particularly in high-temperature devices.
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产品关联
DOI
高影响因子
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