Nano-Micro Letters
·
2021
·Vol. 14
·期 1
·1-10
·
IF 16.419
Shi Bao,Li La,Chen Aibing,Jen Tien-Chien,Liu Xinying,Shen Guozhen
Highlights
Ti 3 C 2 T x MXene-based coaxial zinc-ion hybrid fiber supercapacitors (FSCs) were fabricated with braided structure, which can be prepared continuously and present excellent flexibility and ultrastability.
A sports watch driven by the watch belts which weaved uses the obtained zinc-ion hybrid FSC and LED arrays lighted by the FSCs under embedding into textiles, demonstrating the great potential application in smart wearable textiles.
Abstract Zinc-ion hybrid fiber supercapacitors (FSCs) are promising energy storages for wearable electronics owing to their high energy density, good flexibility, and weavability. However, it is still a critical challenge to optimize the structure of the designed FSC to improve energy density and realize the continuous fabrication of super-long FSCs. Herein, we propose a braided coaxial zinc-ion hybrid FSC with several meters of Ti 3 C 2 T x MXene cathode as core electrodes, and shell zinc fiber anode was braided on the surface of the Ti 3 C 2 T x MXene fibers across the solid electrolytes. According to the simulated results using ANSYS Maxwell software, the braided structures revealed a higher capacitance compared to the spring-like structures. The resulting FSCs exhibited a high areal capacitance of 214 mF cm –2 , the energy density of 42.8 μWh cm −2 at 5 mV s −1 , and excellent cycling stability with 83.58% capacity retention after 5000 cycles. The coaxial FSC was tied several kinds of knots, proving a shape-controllable fiber energy storage. Furthermore, the knitted FSC showed superior stability and weavability, which can be woven into watch belts or embedded into textiles to power smart watches and LED arrays for a few days.
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DOI
高影响因子
CERAMICS INTERNATIONAL
·
2022
·
IF 5.532
Pingan Song,Weiying Wang,Jingguo Li,Shaokui Cao,Jun Shi
Ti 3 C 2 MXene/gold nanorods (Ti 3 C 2 @AuNRs) nanosheets , a novel sandwich-like nanohybrids , have attracted extensive attention in the biomedical field due to its synergistically enhanced near-infrared (NIR) responsiveness and strong absorption in NIR region. In this study, hydroxyapatite (HAP) was self-assembled in situ around Ti 3 C 2 @AuNRs core and then combined with polydopamine (PDA) to prepare NIR-/pH- dual responsive Ti 3 C 2 @AuNRs/HAP/PDA nanocomposites. The obtained Ti 3 C 2 @AuNRs/HAP/PDA nanocomposites exhibited prominent photothermal conversion efficiency (38.6%) due to the synergistically enhanced NIR-responsive of Ti 3 C 2 @AuNRs. Ti 3 C 2 @AuNRs/HAP/PDA nanocomposites displayed excellent drug loading capacity (88.3%) for antitumor drug doxorubicin hydrochloride (DOX) because of the electrostatic interaction of negatively charged HAP nanorods and positively charged DOX, along with the distinct adhesiveness of PDA. In addition, the disintegration of HAP under acid medium and the strong NIR absorption of Ti 3 C 2 @AuNRs endowed the Ti 3 C 2 @AuNRs/HAP/PDA nanocomposites with pH-/NIR-dual responsive drug release behavior. In this paper, a feasible method is presented to prepare Ti 3 C 2 -based drug carriers with high drug loading capacity and remarkable multi-responsive drug release properties, which holds great promise in the field of remote controlled drug delivery and photothermal therapy.
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2022
·
IF 9.965
Chenglong Li,Shuang Wang,Yinghe Cui,Xiaodong Wang,Zhipeng Yong,Dan Liang,Yue Chi,Zhe Wang
Two-dimensional transition metal carbides/nitrides (MXene) have excellent physicochemical properties, but the restacking of MXene films restricts their development towards flexible supercapacitors with high energy density . Introducing Polyaniline (PANI) into the MXene layer and expanding the interlayer distance of the MXene can reduce the effect of restacking on the MXene after compounding. However, despite the excellent electronic conductivity of the composited MXene/PANI (MP), its internal slow ionic kinetics becomes a fundamental limitation of the electrochemical performance after the MP loading increases. To compensate for this weakness, MP films are often scaled down to a few micrometers in size (<2 mg cm −2 ), which limits their development. Here, we introduce α-Fe 2 O 3 /MnO 2 (FM) into MP for the first time by designing a sandwich structure, which significantly improves the bulk capacitance. Due to a large number of active sites and good hydrophilic properties on the MXene surface, FM can interact with the MP. By complexing with MP, the accumulation and loss of FM can be reduced. At the same time, the effect of increasing loading on the electrochemical performance of MP can be compensated. The MXene-PANI/α-Fe 2 O 3 -MnO 2 /MXene-PANI (MP/FM/MP) electrode still exhibits high capacitive performance (661 F g −1 , 3138 mF cm −3 ) when the MP loading reaches 5 mg cm −2 , with excellent mechanical properties and increased flexibility. In addition, the corresponding symmetric supercapacitor also shows a remarkable energy density of 53.32 Wh·L −1 (17.45 Wh kg −1 ). This study provides a way to fabricate MXene-based electrodes with high loadings by designing sandwich-structured electrodes.
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2022
·
IF 9.965
Hankun Tan,Li Sun,Feng Xie,Jingjing Hu,Yaru Qu,Yihe Zhang
An alkali-treated MXene-SnS hybrid was prepared through hydrothermal methods. The Alk-MXene microplates provide highway for electronic transport, and the 3D wrinkled morphology ensures sufficient channels for Li + diffusion. The alkali treatment of MXene gives Alk-MXene@SnS enhanced binding strength, which allows the SnS nanosheets to remain firm binding with the Alk-MXene substrate during cycling and overcome capacity decay caused by large volume change. The synergy between the two components guarantees the hybrid excellent electrochemical properties by enabling high electronic/ionic conductivity and superior kinetic properties as evidenced by EIS, GITT tests and DFT calculation. As a result, the Alk-MXene@SnS retains specific capacities of 519 mAh/g after 100 cycles at 200 mA g −1 , and 330 mAh/g at the high rate of 8000 mA g −1 . In addition, a reversible capacity of 421 mAh/g can be provided after long term cycle test at 1000 mA g −1 for 800 cycles.
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高影响因子
Journal of Materials Chemistry A
·
2021
·Vol. 9
·期 38
·21771-21778
·
IF 12.732
Lan-Xin Li,Wu-Ji Sun,Hao-Yu Zhang,Jia-Liang Wei,Shu-Xian Wang,Jing-Hui He,Na-Jun Li,Qing-Feng Xu,Dong-Yun Chen,Hua Li,Jian-Mei Lu
The efficient electroreduction reaction of nitrate (NO3−RR) at low concentrations to ammonia is energetically favorable for ammonia production and environmentally essential to treat water contamination. Copper-based conjugated molecule electrocatalysts for the NO3−RR are advantageous in terms of their customizable Cu-coordinative micro-environment and facile preparation; however, they easily agglomerate due to their large π-conjugating system, which severely lowers the active site density and increases the internal resistance. This study demonstrates that Ti3C2Tx MXenes are promising supports to disperse and anchor a molecular catalyst (copper phthalocyanine, CuPc) to construct a CuPc@MXene electrocatalyst in order to significantly promote NO3−RR performance. 10% CuPc@MXene achieved higher ammonia selectivity (94.0%) and higher nitrate conversion (90.5%) compared to those of unsupported CuPc, and retained high ammonia selectivity (∼80%) after seven recycling tests. The combination of online differential electrochemical mass spectroscopy (DEMS) and density functional theory (DFT) calculations has showed that CuPc molecules are able to inhibit the hydrogen evolution reaction and effectively convert nitrate into ammonia through the ONH reaction pathway. The results showed that the MXene support is applicable to many metal phthalocyanines (MPcs, M = Fe, Co, Ni), demonstrating its potential in other electrochemical catalysis applications.
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高影响因子
Journal of Magnesium and Alloys
·
2022
·
IF 11.813
Haiguang Gao,Rui Shi,Yana Liu,Yunfeng Zhu,Jiguang Zhang,Liquan Li,Xiaohui Hu
Two-dimensional Ti 3 C 2 T x MXenes exposing different active facets are introduced into MgH 2 , and their catalytic effects are systematically investigated in depth through experimental and theoretical approaches. Excluding factors such as interlayer space, surface functional groups and experimental contingency, the exposed facets is considered to be the dominant factor for catalytic activity of Ti 3 C 2 T x towards MgH 2 . More exposed edge facets of Ti 3 C 2 T x displays higher catalytic activity than that with more exposed basal facets, which also leads to different rate-controlling steps of MgH 2 in the de/hydrogenation process. The low work function, strong hydrogen affinity and high content of in situ metallic Ti for the edge facet contribute the high catalytic activity. This work will give insights into the structural design of two-dimensional Ti 3 C 2 T x MXene used for enhancing the catalytic activity in various fields.
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高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2022
·
IF 5.518
Kai Chen,Yunping Hu,Feng Wang,Mingxiang Liu,Pei Liu,Cong Li,Yongsheng Yu,Xiufeng Xiao,Qian Feng
The hydrogel-based epidermal sensors have attracted tremendous attention due to their versatile potential applications in soft robotics, personal healthcare monitoring, and electronic skins. However, it remains a critical challenge for hydrogel-based sensors to simultaneously achieve self-healing capability and adhesiveness for full-scale human motion biomonitoring. Herein, we proposed a multifunctional MXene/polyampholytes nanocomposite hydrogel. The main network of this hydrogel was formed by the one-step radical polymerization of cationic monomer and anionic monomer . The simultaneous strong and weak ionic bonds-based crosslinking inside this hydrogel endowed it outstanding stretchable, tough, self-healing, adhesive properties , while the introduction of MXene further guaranteed the excellent mechanical properties and conductivity of this hydrogel. Our further exploration of this MXene/polyampholytes in the application as wearable epidermal sensor strongly proved its durable accuracy and sensitivity for the detection of human motions. This epidermal sensor also could be assembled to the detector of the daily activity monitor of Attention-deficit hyperactivity disorder (ADHD) patients, which could be utilized to aid the ADHD treatment by remindering the patients to pay attention to their actions. Our work shed a new light on the development of eco-friendly wearable sensor for the personalized healthcare monitoring, human–machine interfaces, and artificial intelligence.
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高影响因子
Nanocomposites
·
2022
·
IF 4.419
Yuhuan Lv,Lizhen Min,Fengxiao Niu,Xiangyang Chen,Biao Zhao,Yong Liu,Kai Pan
With the rapid development of artificial intelligence and ever-increasing demand for electronic devices, constructing high-performance flexible pressure sensors is urgently needed. In this study, a novel flexible pressure sensor with superhigh sensitivity and ultrawide detection range is tactfully designed and prepared based on wrinkle-structured MXene film. Due to the unique wrinkle structure, the prepared pressure sensor exhibits outstanding performance including high sensitivity of nearly 860 kPa−1, wide detection range (0.5 Pa ‒ 30 kPa), short response/recover time (40/53 ms) and high stability (11600 cycles). A multi-scale working mechanism is proposed to explain the sensing process. Interestingly, the prepared sensor can easily detect the smallest movement of a millet (2.4 mg) in real time. Based on these advantages, the prepared pressure sensor is expected to show significant potentials in future physiological detection and precision instrument monitoring systems.
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高影响因子
ACS Omega
·
2019
·
IF 2.584
Shanshan Luo,Ran Wang,Juanjuan Yin,Tifeng Jiao,Kaiyue Chen,Guodong Zou,Lun Zhang,Jingxin Zhou,Lexin Zhang,Qiuming Peng
Two-dimensional metal carbides or nitrides (MXenes) demonstrated wide applications in energy storage, water treatment, electromagnetic shielding, gas/biosensing, and photoelectrochemical catalysis due to their higher specific surface area and excellent conductivity. They also have the advantages of flexible and adjustable components and controllable minimum nanolayer thickness. In this study, a cube-like Co3O4 particle-modified self-assembled MXene (Ti3C2) nanocomposite has been prepared successfully by a simple solvothermal method. The Co3O4 particles are well dispersed on the surface and inner layers of the Ti3C2 sheets, which effectively prevent the restacking of Ti3C2 sheets and form an organized composite structure. The physical properties of these nanocomposites were studied by using XRD, SEM, EDX, TEM, and XPS. The performance of the obtained samples was evaluated as new nanocatalysts for degrading methylene blue and Rhodamine B in batch model experiments. The prepared Mxene-Co3O4 nanocomposites can be well regenerated and reused for eight consecutive cycles, indicating potential wide applications in wastewater treatment and composite materials.
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高影响因子
JOURNAL OF MATERIALS RESEARCH
·
2024
·Vol. 39
·期 14
·2082-2094
·
IF 2.7
Gao Chenyu,Deng Jikun,He Jiaxing,Wang Zechuan,Sheng Yuanyuan,Liu Junwu,Zhong Honghai,Tong Guoqing,Jiang Yang
A novel Cu/Ti 3 C 2 T X laminated composite foil was prepared using a combination of electroplating and electrophoretic deposition. The results indicate that the average thermal expansion coefficient of the Cu/ Ti 3 C 2 T X composite foil decreased by 11.26% compared to that of pure copper. Due to the high electron mobility of Ti 3 C 2 T X and the favorable Cu/ Ti 3 C 2 T X interface, the electrical conductivity of the Cu/ Ti 3 C 2 T X composite foil exceeded that of pure copper by 8.7%, reaching 6.2147 × 10 7 S·m −1 , and its thermal conductivity increased from 381.5 W/m·K to 423.5 W/m·K. The study revealed that a thinner, looser Ti 3 C 2 T X layer with fewer layers is more favorable for copper penetration and filling, enabling a continuous network-like structure and resulting in significantly improved thermal and electrical properties of the composite copper foil. These findings position the Cu/Ti 3 C 2 T X foil as a promising candidate for electronic encapsulation and super-conductivity. Graphical Abstract
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产品关联
DOI
高影响因子
ACS Nano
·
2025
·
IF 16
Rui Li,Yuanzhuo Zhou,Youqian Chen,Li Zhou,Yihui Yang,Jingrong Xiao,Gang Logan Liu,Jing Wang,Liping Huang,Yanan Li
Two-dimensional MXene materials have gained attention in optics due to their excellent conductivity and light absorption, showing great potential in applications such as photodetectors, photothermal therapy, and laser protection. However, the application of MXene in enhancing plasmonic biosensing on metasurfaces has remained largely unexplored. The MXene functional metasurface plasmonic sensor (MetaSPR), integrated with the advanced microfluidic technology (3MSPR device), enables real-time monitoring of antibodies in three critical fields: precision diagnostics, drug development, and expression process monitoring. The MXene-MetaSPR, retaining the layered structure and high conductivity of MXene, exhibits enhanced sensitivity through its synergistic interaction with the electromagnetic fields within nanoarrays. The sensitivity of label-free IgG detection is increased by more than 250-fold, with a detection limit of 2.56 ng/mL. Experimental results demonstrate that this system is capable of detecting high-affinity (pM) binding between therapeutic antibodies and their targets. Additionally, it enables continuous monitoring during the nanobody expression process in engineered bacteria, with a single antibody concentration analysis completed within a time scale of minutes. The 3MSPR device rapidly and efficiently captures the initial phase of kinetic curves, facilitating precise affinity analysis and optimization of expression efficiency.
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产品关联
DOI
PubMed
高影响因子
SOLAR ENERGY MATERIALS AND SOLAR CELLS
·
2025
·
IF 6.3
Ruijin Fan,Guanwang Chen,Nianben Zheng,Zhiqiang Sun
Gold nanorods (AuNRs)-doped phase change materials (PCMs) hold great promise for alleviating the instability and imbalance of solar energy due to their exceptional energy storage density and adaptability. However, their poor full-spectrum light absorption and inferior stability lead to insufficient photothermal conversion efficiency. Herein, we devise functional PCMs with synergistic reinforcement of light absorption and photothermal conversion through the in-situ growth of AuNRs on the MXene surface. The results indicate that the bimodal resonance effect of AuNRs and broad-spectrum absorption of MXene synergistically endow a 29.7 % increase in light absorption efficiencies over the pristine composites, which is superior to the sum of the two individually doped phase change composites (PCCs). Similarly, the photothermal storage and conversion efficiencies of the AuNRs/MXene-doped PCC are significantly enhanced by 36.6 % and 78.4 %, respectively. Furthermore, the fluorescence analysis reveals a prolonged fluorescence lifetime of 1.91 ns and a low quantum yield of 0.27 %, demonstrating efficient separation and migration of light-induced carriers and thermal dissipation via non-radiative relaxation, which is because the AuNRs and MXene synergistically enhance the localized surface plasmon resonance effect and the spectral absorption bands. This work offers fresh perspectives on the development of advanced photothermal PCMs for efficient solar thermal applications.
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产品关联
DOI
高影响因子
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