JOURNAL OF PHYSICS D-APPLIED PHYSICS
·
2022
·Vol. 55
·期 20
·204002
·
IF 3.409
Huajun Xu,Gang Chen,Fei Du,Xin Wang,Yohan Dall’Agnese,Yu Gao
In spite of outstanding theoretical specific capacity (∼3590 mAh g−1), huge volume change during lithiation/delithiation and poor conductivity hinder the practical applications of pure Si anodes for lithium ion batteries (LIBs), requiring conductive additives and porous architectures. In this work, flexible and freestanding composite films made of two-dimensional Ti3C2Tx MXene nanosheets and silicon particles embedded in carbon nanofiber (denoted as Ti3C2Tx-Si@CNF) were prepared via electrospinning and used as LIB anodes. This new electrode design provides a 3D network architecture and high conductivity favorable for good electrochemical performance and long cycle life. Ti3C2Tx-Si@CNF electrodes, containing 28% silicon retained high specific capacity of ∼1580 mAh g−1 after 100 cycles at 0.1 A g−1 and 720 mAh g−1 after 1000 cycles at 1 A g−1, and delivered a great rate performance with 289 mAh g−1 at a current density of 5 A g−1. This is a significantly enhanced performance compared with Si particles embedded in CNF without Ti3C2Tx (denoted Si@CNF). This work proposes a scalable manufacturing strategy for developing high-performance silicon-based anodes, overcoming the low conductivity and volume expansion issues.
✓ 已验证
DOI
高影响因子
Advanced Materials Technologies
·
2021
·Vol. 7
·期 6
·2101096
·
IF 7.848
Jing-Qi Wang,Peng-Fei Qian,Tian-Jiao Lou,Wenyi Wang,Wen-Hao Geng,Li-Chao Jing,Ze-Long Bao,Tao Wang,Hong-Zhang Geng
The rapid development of the Internet of Things has promoted the application of wearable devices in human's daily life and industrialization. Strain sensors play an indispensable role as a member of wearable devices. Here, a strain film sensor with multi-walled carbon nanotubes (MWCNTs) and Ti 3 C 2 T X MXene, which is obtained by vacuum-assisted filtration and integrated onto a thermoplastic polyurethane substrate, is developed. Since the MWCNTs and Ti 3 C 2 T X MXene composite sensor has a characteristic ‘mud-brick’ microstructure. The sensor has the ability to detect various human movements, such as, bending of finger joints, wrists, elbow joints, and shoulder. The sensors show excellent mechanical property and can be folded more than 2000 times without failure. It also exhibits short response time, low detection limit, and wide range of use. In addition, the sensor shows excellent electrical heating performance. The temperature of the composite film can rise to 96.6 °C in a short period of time even under low voltage power supply (25 V). It likewise proves its excellent performance in terms of cyclability and long-time heating capability. The film has low production cost, easy preparation method, and simple operation. The MWCNT/Ti 3 C 2 T X MXene film can be integrated into wearable devices and shows great potential for future applications.
✓ 已验证
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2024
·
IF 5.8
Kai Li,Zihang Zhang,Chenxi Sun,Weiguang Han,Mengmeng Zhen,Huiling Liu
Anatase titanium dioxide (TiO 2 ) has garnered significant attention as an anode material for sodium-ion batteries (SIBs) due to its high crystallinity and two-dimensional (2D) diffusion pathways. However, its semiconducting nature results in poor electrical conductivity and sluggish Na⁺ diffusion kinetics. To address these limitations, we propose a novel strategy that integrates the highly exposed TiO 2 (001) facet with Ti 3 C 2 T x MXenes, resulting in the formation of a heterostructure denoted as ((001)T-MX). This heterostructure leverages the strengths of both components to mitigate the shortcomings of TiO 2 alone. The highly exposed TiO 2 (001) facet exhibits a lower Na⁺ insertion energy barrier compared to the TiO 2 (101) facet, thereby facilitating enhanced Na⁺ diffusion along the (001) direction. The incorporation of MXenes not only reduces the band gap energy but also significantly improves the electron conductivity, addressing the inherent conductivity issues of TiO 2 . As an SIB anode, the (001)T-MX delivers a high specific capacity of 121.3 mAh g −1 at 0.5 A g −1 after 500 cycles and exhibits superior cycling stability with a specific capacity of 99.1 mAh g −1 after 1000 cycles at 1.0 A g −1 . This work provides a robust framework for developing advanced heterostructures with tailored crystal faces, paving the way for enhanced energy storage solutions.
✓ 已验证
DOI
高影响因子
Research
·
2020
·
IF 0
Yao Lu,Xinyu Qu,Wen Zhao,Yanfang Ren,Weili Si,Wenjun Wang,Qian Wang,Wei Huang,Xiaochen Dong
Electronic skin is driving the next generation of cutting-edge wearable electronic products due to its good wearability and high accuracy of information acquisition. However, it remains a challenge to fulfill the requirements on detecting full-range human activities with existing flexible strain sensors. Herein, highly stretchable, sensitive, and multifunctional flexible strain sensors based on MXene- (Ti 3 C 2 T x -) composited poly(vinyl alcohol)/polyvinyl pyrrolidone double-network hydrogels were prepared. The uniformly distributed hydrophilic MXene nanosheets formed a three-dimensional conductive network throughout the hydrogel, endowing the flexible sensor with high sensitivity. The strong interaction between the double-network hydrogel matrix and MXene greatly improved the mechanical properties of the hydrogels. The resulting nanocomposited hydrogels featured great tensile performance (2400%), toughness, and resilience. Particularly, the as-prepared flexible pressure sensor revealed ultrahigh sensitivity (10.75 kPa -1 ) with a wide response range (0-61.5 kPa), fast response (33.5 ms), and low limit of detection (0.87 Pa). Moreover, the hydrogel-based flexible sensors, with high sensitivity and durability, could be employed to monitor full-range human motions and assembled into some aligned devices for subtle pressure detection, providing enormous potential in facial expression and phonation recognition, handwriting verification, healthy diagnosis, and wearable electronics.
✓ 已验证
DOI
DALTON TRANSACTIONS
·
2023
·Vol. 52
·期 44
·16413-16420
·
IF 4
Hankun Tan,Lei Zhang,Kaiyue Gao,Li Sun,Yihe Zhang,Feng Xie
2H phase MoS2 with a two-dimensional nanostructure, high chemical stability and large theoretical capacity has been considered as a potential anode material for lithium-ion batteries. However, some practical problems hinder the direct use of 2H-MoS2 for lithium storage, such as its volume expansion effect that leads to capacity loss and its semiconductor properties that cannot provide sufficient conductivity. Herein, the surface of an MXene with abundant surface groups was modified with CTAB to promote its ability to adsorb MoO42− anions, and then 2H-MoS2 with a few layers was directly grown on the surface of MXene sheets vertically. Thanks to the conductive MXene sheets and the vertically-supported high-capacity MoS2 on them, the as-obtained composite MXene@MoS2 offers enhanced performance in specific capacity, long cycling stability and high rate capability. A reversible specific capacity of 1198 mA h g−1 was retained after 100 cycles at 200 mA g−1 and a specific capacity of 717 mA h g−1 was exhibited at 8000 mA g−1.
✓ 已验证
DOI
高影响因子
JOURNAL OF ENVIRONMENTAL MANAGEMENT
·
2024
·
IF 8
Yuxuan Zhang,Jun Luo,Xiuyan Wang,Dunhan Zhang,Hongxia Xu,Yuanyuan Sun,Xueyuan Gu,Xin Hu,Bin Gao,Hongqiang Ren
MXenes, such as Ti 3 C 2 T x , demonstrate tremendous potential as heavy metal adsorbents due to their abundant reaction sites, high hydrophilicity , controllable interlayer spacing, and inherent reduction ability. However, their structural dependent pollutant removal performances and the related mechanisms are far less studied. Therefore, the removing abilities of Cr(VI) from water on Ti 3 C 2 T x MXenes with different structures (multilayer (ML-) and delaminated (DL-) Ti 3 C 2 T x ) synthesized via several etching techniques were evaluated. Focusing on the most effective ML- and DL-Ti 3 C 2 T x obtained by acid/fluoride salt etching, the impacts of structural variations on the Cr(VI) removal performances were explored. Both ML- and DL-Ti 3 C 2 T x demonstrate outstanding Cr(VI) adsorption and reduction capabilities, achieving equilibrium within 500 min with capacities of 92.7 and 205 mg/g, respectively. The differences in removal mechanisms stemed from the varying adsorption and reduction capacities of two MXenes. ML-Ti 3 C 2 T x , with lower surface area and porosity, had low adsorption capacity but superior reduction ability, efficiently converting most Cr(VI) to Cr(III) (66.8%). Conversely, DL-Ti 3 C 2 T x exhibited better removal efficiency but a lower capacity for reduction (45.7%). Notably, although the partial reduction of DL-Ti 3 C 2 T x to TiO 2 results in its limited chemical reduction capacity, Ti 3 C 2 T x might serve as a co-catalyst for TiO 2 , boosting the photoresponsiveness of DL-Ti 3 C 2 T x or TiO 2 through Ti 3 C 2 T x /TiO 2 heterojunctions , thereby facilitating photocatalysis to realize the reduction of Cr(VI). Both Ti 3 C 2 T x exhibited both excellent Cr(VI) removal capacity and detoxification capacity, demonstrating their high potential in treating heavy metal pollutants in wastewater.
✓ 已验证
DOI
高影响因子
COMPOSITES SCIENCE AND TECHNOLOGY
·
2025
·
IF 9.8
Haofei Sima,Bo Liu,Jingshi Liang,Xiaolin Shi,Chunling Zhang
Highly conductive and super-tough acrylamide hydrogels are essential for the development of flexible electronics. However, the inherent electrical and mechanical deficiencies of polyacrylamide (PAM) impede their utilization in flexible electronics. To address this challenge, a novel double-crosslinking method for rapid gelation based on an MXene-initiated poly (acrylamide/vinylimidazole) (MPAV) system is presented in this paper. MXene rapidly initiated the copolymerization of acrylamide with ionic liquids and acted as a physical cross-linking point for dynamic and reversible physical interactions with the polymer chains. The copolymerization of ionic liquids solved the problem of MXene aggregation in the medium and enabled the ionic conductivity mechanism of directional movement of free ions inside the MPAV hydrogel. MPAV hydrogels exhibited high electrical conductivity (2.28 S/m), excellent electromagnetic interference shielding efficiency (SE t > 35 dB), and sensitive strain sensing properties (maximum gauge factor: 14.69 and maximum sensitivity: 0.124 kPa -1 ). The well-designed MPAV double crosslinked hydrogel also displays remarkable mechanical properties (elongation: 457% and compressibility: 80%) and self-healing capabilities.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Fangfang Su,Jiahe Liang,Zhongjie He,Yangyang Xin,Yisong Liu,Weirui Zhang,Zhuojun Mao,Lijun Yuan,Yaping Zheng,Xiaoqian Li
Recently, with the escalating severity of energy consumption issues, solar energy has attracted significant attention due to its clean, pollution-free, and renewable characteristics, among which solar thermal utilization is currently the most efficient way of utilizing solar energy. Ionic liquids (ILs) exhibit excellent thermal stability and wide liquid-phase range, but their limited optical absorption properties restrict practical applications. In this work, we pioneer the incorporation of magnetic ionic liquids (MILs) into nanofluids (NF) to boost the solar-thermal conversion of ILs-based systems. A novel nanofluid was engineered through electrostatic assembly of C-MOF@Ti 3 C 2 T x with hybrid ionic liquids (HIL), where HIL was synthesized by integrating MIL into non-magnetic ILs to enhance the optical absorption of the base fluid. Moreover, MXene deposition on the C-MOF surface after copper oxide removal effectively reduces the interfacial reflection coefficient of nanoparticles while improving full-spectrum solar absorption. The research indicates that incorporation MIL significantly enhances the optical absorption properties of the base fluid. The C-MOF@Ti 3 C 2 T x -HIL NF exhibits excellent thermal stability below 400 °C, low viscosity (50 mPa·s at 25 °C), and high solar absorption capacity, making it highly suitable for both pumping and heat generation in industrial applications. Furthermore, stagnation temperature tests revealed that the C-MOF@Ti 3 C 2 T x -HIL nanofluid achieves full-spectrum absorption at an ultralow mass fraction of 0.02 wt%, demonstrating rapid heat generation kinetics. The system attained an equilibrium temperature of 79.0 °C with a peak solar-thermal conversion efficiency of 91.2 % under 1 Sun irradiation. Additionally, the material exhibits exceptional cycling stability and water evaporation performance, showing promising application potential for seawater desalination and biomedical fields.
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED ENGINEERING MATERIALS
·
2025
·
IF 3.3
Yangmin Jing,Yu Zhao,Xiaohui Cao,Kerui Li,Chengyi Hou,Qinghong Zhang,Yaogang Li,Hongzhi Wang
Taking inspiration from nature, researchers make efforts to develop flexible self-adaptive actuators, which are wearable and able to be integrated in clothing in order to meet the new demands of the intelligent era. MXene, an emerging two-dimensional nanomaterial, is gaining popularity owing to its unique properties. Herein, a kind of Janus MXene film actuator is developed through a simple method of one-step vacuum filtration with a specific Celgard 3501 membrane. The cause of the Janus properties and the actuation mechanism are demonstrated in detail. A sample of smart cloth functionalized by the Janus MXene films is further shown to illustrate its potential application. Based on the Janus MXene film actuator, GO/MXene and MXene/PDMS film actuators are designed for enhanced asymmetric structures according to hydrophilicity gradient. Finally, two different structural colors caused by the thin-film interference and photonic crystals are respectively applied to GO/MXene and MXene/PDMS film actuators, exhibiting chromogenic and chromic phenomena along with actuating performances.
✓ 已验证
产品关联
DOI
高影响因子
ACS Omega
·
2025
·
IF 4.3
Zhenzhong Hou,Qinghao Yang,Hai Lu,Ying Li,QiuLi Zhao
Although the Ti3C2 MXene has demonstrated exceptional promise for supercapacitor applications, its practical implementation is limited by its inherent tendency of undergoing restacking and oxidation. Herein, we propose a facile self-assembly strategy of in situ polymerization to construct lignosulfonate (LS)-modified polypyrrole (PPy)/MXene hybrid hydrogels with a hierarchical porous structure. The formed PPy nanoparticles and coating layer effectively prevent MXene restacking and oxidation, while enhancing electrical conductivity and electrochemical activity. Furthermore, LS contributes redox-active quinone groups, further promoting electron and proton storage and exchange. The hierarchical heterostructure provides continuous ion-diffusion pathways and exposes abundant electroactive sites, yielding a remarkable specific capacitance of 663.7 F g–1 at 0.2 A g–1 with 81.2% capacitance retention and 95.3% Coulombic efficiency after 5000 cycles at 2 A g–1. Assembled solid-state symmetric supercapacitors achieve an exceptional energy density of 29.3 W h kg–1 at 200 W kg–1 and maintain 12.4 W h kg–1 at an ultrahigh power density of 3200 W kg–1, alongside fairly good cycling stability (87.6% capacitance retention) and a Coulombic efficiency of 94.1% over 5000 cycles. These results highlight the multifunctionality of the LS component within the hybrid hydrogels─simultaneously stabilizing the structure, improving electrical conductivity, generating cross-links, and contributing toward pseudocapacitance─establishing LS-modified PPy/MXene hybrid hydrogels as high-performance electrode materials for advanced supercapacitor applications.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Imamdin Chandio,Suet Cheung,Lei Wu,Mengyang Cui,Yongjian Ai,Qionglin Liang
Early detection of cancer is critical for reducing mortality and improving patient outcomes, yet it remains a challenge due to limitations in existing diagnostic methods. Alpha-fetoprotein (AFP), a glycoprotein predominantly produced during fetal development, has emerged as a vital biomarker for diagnosing cancers such as hepatocellular carcinoma (HCC), germ cell tumours, and yolk sac tumours. However, conventional methods for AFP detection, including immunoassays and enzyme-linked techniques, face challenges such as high costs and limited sensitivity. Here, we have developed a novel label-free electrochemical aptasensor based on a reduced graphene oxide-gold nanoparticle-MXene composite (rGO-AuNPs@MXene). This hybrid material leverages the high conductivity and catalytic activity of AuNPs, the large surface area and stability of rGO, and the exceptional electrochemical properties of MXenes. The rGO-AuNPs@MXene based composite offers high sensitivity, excellent selectivity, and favorable biocompatibility for the detection of AFP. NH 2 -aptamers were immobilized onto the rGO-AuNPs@MXene-modified electrode, enabling precise AFP recognition through specific aptamer-target interactions. The aptasensor demonstrated a broad detection range (10 fg mL −1 to 1 μg mL −1 ), with an ultra-low limit of detection of 13.91 fg mL −1 (S/N = 3). It demonstrated excellent stability, with only a 3.80 % decrease in signal after 8 days of storage, and remarkable reproducibility, showing a relative standard deviation of 1.85 % across five electrodes. These findings emphasize the remarkable efficiency of the rGO-AuNPs@MXene composite in producing highly sensitive and reliable electrochemical aptasensors. This innovation underscores its substantial potential for advancing early cancer detection and improving clinical diagnosis.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF NANOBIOTECHNOLOGY
·
2025
·Vol. 23
·期 1
·1-22
·
IF 12.6
Yang Ningning,Hua Rongrong,Lai Yingying,Zhu Peijun,Ding Jian,Ma Xianhui,Yu Gaoxiang,Xia Yiheng,Liang Chao,Gao Weiyang,Wang Zhouguang,Zhang Hongyu,Yang Liangliang,Zhou Kailiang,Ge Lu
In the field of large-area trauma flap transplantation, preventing avascular necrosis remains a critical challenge. Key mechanisms for improving flap viability include angiogenesis promotion, oxidative stress inhibition, and cell death prevention. Recently, two-dimensional ultrathin Ti 3 C 2 T X (MXene) nanosheets have gained attention for their potential contributions to these processes, though MXene’s physiological impact on flap survival had not been previously investigated. This study is the first to confirm MXene's biological effects on the ischaemic microenvironment post-skin flap transplantation. Findings indicated that MXene significantly decreased the necrotic area in ischaemic flaps (37.96% ± 2.00%), with reductions of 30.40% ± 1.86% at 1 mg/mL and 20.19% ± 2.11% at 2 mg/mL in a concentration-dependent manner. Mechanistically, MXene facilitated in situ angiogenesis, mitigated oxidative stress, suppressed pro-inflammatory pyroptosis, and activated the PI3K-Akt pathway, particularly influencing vascular endothelial cells. Comparative transcriptome analysis of skin tissues with and without MXene treatment provided additional evidence, highlighting mechanisms such as pro-inflammatory pyroptosis, ROS metabolic processes, endothelial cell proliferation regulation, and PI3K-Akt signaling pathway activation. Overall, MXene demonstrated biological activity, effectively promoting ischaemic flaps survival and presenting a novel strategy for addressing ischaemic necrosis in skin flaps. Graphical abstract
✓ 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）