RSC Advances
·
2022
·Vol. 12
·期 33
·21600-21608
·
IF 4.036
Jinxin Cao,Yuru Wang,Bingqing Wei,Jiaxin Ye,Qing Zhang
Changing the morphology of two-dimensional materials often offers an efficient and effective means to exploit their electronic and mechanical properties. Two-dimensional materials such as graphene can be scrolled into one-dimensional fibers via simple sonication. Unfortunately, scrolling MXene nanosheets into fibers is quite challenging, especially Ti3C2Tx composed of three layers of titanium atoms and two layers of carbon atoms. Herein, we report a new method to fabricate MXene fibers via ascorbic acid (AA) induced scrolling of Ti3C2Tx nanosheets. An unusual AA-Ti3C2Tx interaction is discovered in that intercalated AA molecules bind to and interact with the Ti3C2Tx surface in the form of a hydrogen bonding-bonded assembly instead of as individual molecules, and a sheet-scrolling mechanism is proposed based on this interaction. The as-obtained MXene fibers exhibit a compact cross-section, and the diameter can be tailored from hundreds of nanometers to several micrometers through tuning the MXene/AA ratio. Moreover, the storage modulus of the MXene-fiber sponge attains its maximum value of ∼1 MPa when a unique morphology comprising both fibers and not-yet-scrolled sheets is presented. This work offers a new strategy of fiber-shaping MXenes for applications in structural composites and flexible electronics.
研究领域:
材料科学
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ELECTROCHIMICA ACTA
·
2021
·
IF 6.901
Hong Li,Feng Shao,Xinzhu Wen,Yusen Ding,Chao Zhou,Yafei Zhang,Hao Wei,Nantao Hu
Developing scalable and facile techniques to design and construct unique structures of cathodes with high performance is challenging for the practical Li-S batteries. In this work, highly effective and scalable cathodes based on curved graphene/MXene bi-nanosheets-constituted fibers is demonstrated for long-lifetime Li-S batteries. Wet-spinning is introduced to design and fabricate sulfur cathodes based on graphene/MXene hybrid fibers, in which sulfur is uniformly distributed and intimately enveloped between graphene and MXene nanosheets. The high chemical affinity towards polysulfides enabled by MXene is demonstrated by experiments and density functional theory (DFT) calculations. The assembled cells show high sulfur utilization (the discharge capacity of 1483.1 mAh g −1 at 0.1 C), high rate performance (733.3 mAh g −1 at 2 C) and excellent long cycle stability (0.043% per cycle decay at 1 C over 1000 cycles). Moreover, a reversible areal capacity of 5 mAh cm −2 is achieved under a high sulfur loading of 5.6 mg cm −2 , revealing its great potential for practical applications. This study gives a valuable guidance to design advanced sulfur cathodes for high-performance Li-S batteries.
研究领域:
材料科学
·
能源存储技术
✓ 已验证
DOI
高影响因子
Advanced Sensor and Energy Materials
·
2024
·
IF 0
Yu Liu,Xu Zeng,Yulong Wu,Habib Ullah Khan,Fei Xiao,Bao Yu Xia,Yimin Sun
The development of technologically advanced fiber-based flexible microelectrodes has been of extensive research interest in healthcare systems because of their unique construction and synergistic effect on multifunctional properties. In this work, we constructed functional MXene fiber (MXF) by a simple and versatile wet spinning method, and then, a well-aligned ZIF-67 nanoarray was grown in situ on the surface. Using the chemical vapor deposition (CVD) method, carbon nanotubes (CNTs) were produced on MXF via the pyrolysis of ZIF-67 and melamine. Finally, Pt nanoparticles were electrodeposited on the CNTs forest, and a Pt@CNTs/MXF electrode was obtained. Owing to the plethora of surface active sites and the synergistic effects between MXene, CNTs, and Pt nanoparticles, the as-fabricated fiber electrode enabled the precise detection of ammonia under alkaline conditions via differential pulse voltammetry (DPV), which exhibited a linear range of 0.1 μM-10 mM and a detection limit of 73.2 nM. Due to their good performance in ammonia detection, Pt@CNTs/MXF electrodes could be adopted to determine the ammonia concentration in urine for clinical estimation, which provides a practical approach for the diagnosis of urinary ammonia-associated diseases.
研究领域:
生物医学工程
·
分析化学
·
纳米材料
·
传感器技术
✓ 已验证
DOI
MATERIALS & DESIGN
·
2022
·
IF 9.417
Jinhua Xiong,Haowen Zheng,Renjie Ding,Pengyang Li,Zonglin Liu,Xu Zhao,Fuhua Xue,Zhong Chen,Qian Yan,Qingyu Peng,Xiaodong He
MXene-based fibers are expected to have the hopeful potential for manufacturing multifunctional fabrics with permeability, lightweight, remarkable electrical conductivity, and outstanding mechanical properties. However, the weak interaction between fibers limits the performance of the fabrics, and researchers are still seeking a suitable solution and easily scalable production methods. Here a green and novel wet-assembly approach is proposed for producing non-woven MXene fiber fabrics (MFFs) constructed by random-oriented and well-connected interfused MXene fibers. The as-prepared fabrics are porous and lightweight while exhibiting high electrical conductivity (708 S cm −1 ). A maximum specific electrical conductivity is achieved with a relatively low density (0.24 g cm −3 ), even superior to individual MXene fibers. Moreover, the MFFs exhibit outstanding electromagnetic interference (EMI) shielding effectiveness of 75.0 dB at a thickness of 107 μm, exceptional Joule heating (up to 370 °C at a voltage of 3.5 V), and excellent photothermal conversion abilities, showing their great potential as high-performance and multifunctional fabrics in EMI shielding, wearable intelligent garments, and personal heating applications.
研究领域:
材料科学
·
纺织工程
·
电子材料
✓ 已验证
产品关联
DOI
高影响因子
Small
·
2025
·
IF 12.1
Ke Wu,Yide Liu,Cunzhen Geng,Xiankai Li
MXene fibers with electro-conductivity and electrochemical properties have drawn growing research interest for its promising applications in wearable electronics, flexible electrodes, and smart textiles. However, producing MXene fibers with high strength keeps challenging because loose MXene sheets are hard to compact tightly due to electrostatic repulsion. Herein, ultra-compact MXene-based fibers are produced by intercalating alginate and polyvinyl alcohol (PVA) layers into MXene nanosheets and chelating via metal ions (i.e., Ca 2+ ). The hydrogen and ionic bond are beneficial to compact MXene nanosheets and decrease the interplanar spacing, which improves the tensile strength. These result in MXene-based fibers with low porosity (0.2 vol%) and a high orientation factor of 0.877 exhibiting high electrical conductivity (1006 S cm ‒1 ). In addition, flame retardancy is enhanced without smoldering owing to the synergistic effect of MXene and metal ions. Moreover, these compact MXene-based fibers with electromagnetic interference shielding, mechanical stability, acid, and alkali-resistant properties, and photo-thermal effect can be achieved for scale production. This strategy paves the way for the continuous production of compact functional fibers, applicable in flame retardant fabric, wireless communication, energy harvesting, and wearable flexible textiles.
研究领域:
材料科学
·
纺织工程
·
电子工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Small
·
2025
·
IF 12.1
Lvxuan Ye,Liu-Xin Liu,Meng Jin,Xinfeng Zhou,Guang Yin,Hao− Yu Zhao,Jinglei Yang,Hao-Bin Zhang,Zhong-Zhen Yu
Although electrically conductive Ti₃C₂T x MXene fibers are promising for wearable electronics, the poor inter-sheet interactions and the random stacking structure of MXene sheets seriously hinder electron transport and load transfer of the fibers. Herein, mechanically strong and electrically conductive MXene@graphene oxide (GO) core-shell fibers are fabricated with a coaxial wet-spinning methodology for electromagnetic wave regulation, thermochromic alerts, and visible camouflage. During the coaxial wet-spinning, the trace-carboxylated GO sheets in the shell align readily because of the spatial confinement of the coaxial needle, while the MXene sheets in the core are progressively oriented and flattened because of the spatial confinement of the GO shell. The positively charged chitosan in the coagulating solution enhances the interfacial interactions between the GO and MXene sheets and facilitates the sheet′s orientation inside the fibers. Consequently, the highly aligned core-shell fibers exhibit an ultrahigh tensile strength of 613.7 MPa and an outstanding conductivity of ≈7766 S cm −1 . Furthermore, fiber-woven textiles not only offer excellent electromagnetic interference shielding performance but also achieve quantitative regulation of electromagnetic wave transmission by adjusting the angle of the double-layered textiles. The textiles can combine with thermochromic coatings for thermotherapy alerts, visual thermochromic warnings, and visible camouflage.
研究领域:
材料科学
·
电子工程
·
纺织科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
iScience
·
2024
·
IF 4.6
Mengxi Gu,Xuan Zhou,Jienan Shen,Ruibin Xie,Yuhan Su,Junxue Gao,Binzhe Zhao,Jie Li,Yingjie Duan,Zhixun Wang,Yougen Hu,Guoqiang Gu,Lei Wang,Lei Wei,Chunlei Yang,Ming Chen
It is still a great challenge for the flexible piezoresistive pressure sensors to simultaneously achieve wide linearity and high sensitivity. Herein, we propose a high-performance textile pressure sensor based on chitosan (CTS)/MXene fiber. The hierarchical “point to line” architecture enables the pressure sensor with high sensitivity of 1.16 kPa −1 over an ultrawide linear range of 1.5 MPa. Furthermore, the CTS/MXene pressure sensor possesses a low fatigue over 1000 loading/unloading cycles under 1.5 MPa pressure load, attributed to the strong chemical bonding between CTS fiber and MXene and excellent mechanical stability. Besides, the proposed sensor shows good antibacterial effect benefiting from the strong interaction between polycationic structure of CTS/MXene and the predominantly anionic components of bacteria surface. The sensor is also applied to detect real-time human action, an overall classification accuracy of 98.61% based on deep neural network-convolutional neural network (CNN) for six human actions is realized.
研究领域:
材料科学
·
生物医学工程
·
传感技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2024
·
IF 5.8
Dianchun Qiu,Kai Zheng,Tuxiang Guan,Zemei Li,Juan Peng,Qing Tao,Kelan Yan,Ningzhong Bao
Flexible supercapacitor is highly important to future wearable textile electronics and metaverse technologies, yet they are still limited by their unfulfilled specific capacitance and energy density . Here, a MXene (V 2 CT X ) based fiber fabric (MFF) was developed via a synergistic flow driven assembly strategy for high-performance supercapacitors . Adapted through reliable approaches of indirect etching, organic cation intercalation, and wet spinning, the MFF presents rich active sites, ordered paths, a moderate specific surface area (41.1 m 2 g −1 ), good flexibility and reproducibility. Admirably, the resulting fibrillar meshwork structure was found to be highly conducive to increasing energy density and reducing the electrochemical polarization. In this regard, a relatively good capacitance of 731 F g −1 is achieved at a current density of 0.5 A g −1 in H 2 SO 4 electrolyte. Furthermore, the assembled asymmetric solid-state supercapacitor (FSC) exhibits high specific capacitance of 401.2 F g −1 at 0.5 A g −1 , long cycle stability (5000 cycles) and high mechanical flexibility (5000 bending cycles). Benefiting from this outstanding electrochemical performance , the FSCs using EMIBF 4 /PVDF-HFP as electrolyte can be implied as reliable power source to flexible displaying and health monitoring. This work provides a novel MXene (V 2 CT X ) based fiber fabric for constructing flexible electrode, promising to open an avenue toward wearable devices.
研究领域:
材料科学
·
能源技术
·
纺织工程
✓ 已验证
产品关联
DOI
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.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Lumin Liao,Fen Xu,Lixian Sun,Yumei Luo,Yanxun Guan,Yingguang Xie,Bing Liang,Zong Cao
Herein, a novel electrode material (NiFe-PBA@MXene-fibers) has been prepared by introducing a homemade one-dimensional (1D) MXene-fiber combined with NiFe-Prussian blue analogue (NiFe-PBA) for the construction of a non-enzymatic glucose sensor. The unique fiber mesh spatial structure of 1D MXene-fibers is utilized to restrain the agglomeration of NiFe-PBA. Meanwhile, the effect of 1D MXene-fibers on the sensing performance of NiFe-PBA has been researched. The electrochemical study results illustrate that the NiFe-PBA@MXene-fibers/GCE presents a good response to glucose, indicating a fast response time (∼1 s), high sensitivity (926.68 μA cm −2 mM −1 ), and wide detection range (0.015–8.09 mM). Analyses by SEM, TEM, etc. reveal that the good sensing performance of NiFe-PBA@MXene-fibers/GCE benefits from the high conductivity and large specific surface area of 1D MXene-fibers, as well as the synergistic effect between 1D MXene-fibers and NiFe-PBA. And the recovery of the sensor achieves 98.7 %–103.5 % for actual human saliva. In a word, the NiFe-PBA@MXene-fibers, as a novel electrode material, contributes significantly to the development of advanced and efficient non-enzymatic glucose sensors.
研究领域:
材料科学
·
生物医学工程
·
分析化学
✓ 已验证
产品关联
DOI
高影响因子
CARBON
·
2022
·
IF 11.307
Xu Zhao,Jizhen Zhang,Ke Lv,Na Kong,Yanqiu Shao,Jinlong Tao
Mechanically strong and electrically conducting fibers, particularly those with high specific capacitances, are promising fiber-shaped electrodes for fiber- and textile-based energy storage devices like fiber-shaped supercapacitors (FSCs). However, a high loading of fillers or bridging agents is commonly required to fabricate fiber electrodes with good mechanical strength , which compromises electrical conductivity and energy storage performance. Herein, an easily scalable wet-spinning strategy is reported to fabricate multifunctional Ti 3 C 2 T x MXene/carbon nanotubes (MXene/CNT) hybrid fibers from a harmonious mixture of MXene and CNT in water and using acetic acid as a coagulation bath . The hybrid fiber achieved high strength (61 ± 7 MPa), good conductivity (1142.08 ± 40.04 S cm −1 ) and excellent energy storage performance (∼295 F g −1 at 5 mV s −1 ) at a very low CNT content of ∼1 wt%. When CNT loading increased to ∼9 wt%, the maximum strain at broken reached 161 ± 19 MPa and conductivity further increased to 1715 ± 22 S cm −1 . The excellent mechanical performance allows hybrid fibers to be knitted into textiles for energy storage textiles. The assembled FSCs exhibit energy and power densities of ∼6.08 mW h cm −3 and ∼6440 mW cm −3 , respectively. The excellent performance of MXene/CNT fiber and good feasibility for scalable production will open up new opportunities for the development of wearable and textile-based devices in the near future.
研究领域:
材料科学
·
纳米科技
·
能源存储
·
纺织电子学
·
高分子物理
✓ 已验证
DOI
高影响因子
Polymers
·
2024
·Vol. 16
·期 2
·189
·
IF 4.7
Qiang Yang,Jia Zhang,Hairong Yin,Junkang Guo,Shenghua Lv,Yaofeng Li
In this work, acrylic cellulose hydrogel, a typical natural polymer adsorbent, was modified using MXene through in situ polymerization to create a synthetic inorganic–polymer composite known as MXene/cellulose hydrogel. FTIR, XRD, SEM, and thermogravimetric analyses were applied to characterize the chemical structure and micromorphology. The MXene/cellulose hydrogel was utilized for the removal of Pb2+from wastewater. Under optimal experimental conditions (initial Pb2+concentration of 0.04 mol/L, adsorption time of 150 min, pH = 5.5, and MXene doping content of 50% at 30 °C), a maximum adsorption capacity of 410.57 mg/g was achieved. The MXene/cellulose hydrogel corresponded with the pseudo-second-order kinetic equation model and exhibited a better fit with the Freundlich isotherm model.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）