OPTICS AND LASER TECHNOLOGY
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2025
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IF 5
Jun Dong,Yixuan Hou,Wei Gao,Chengyun Zhang,Lipeng Zhu,Yongkai Wang,Qingyan Han,Jianxia Qi
Surface-Enhanced Raman Scattering (SERS), with the exceptional single-molecule detection capability and high sensitivity, has become an advanced spectroscopic analysis method in fields such as chemical analysis and biosensing. Three-dimensional (3D) sandwich substrates, due to their unique structural characteristics, have attracted considerable attention for their ability to enhance SERS detection sensitivity. However, the controlled assembly of 3D sandwich substrates with bimetallic nanoparticles remains a challenge. In this paper, a fabrication method for constructing 3D sandwich substrates via a bottom-up approach is proposed. Using a liquid–liquid phase self-assembly method, Au@Ag nanocubes (Au@Ag NCs) were assembled on a polystyrene (PS) microsphere array with monolayer MXene (Ti 3 C 2 T X ) adsorption, successfully constructed an Au@Ag NCs/MXene/PS microsphere substrate. Furthermore, the SERS sensitivity of the substrate was evaluated using Rhodamine 6G (R6G), Crystal Violet (CV), and Aspartame (APM) molecules, and experimental results show that the detection limits are 10 −12 M, 10 −11 M, and 0.0313 g/L (1.06 × 10 −4 M), respectively, with excellent uniformity and stability of the substrate. These findings demonstrate that the constructed 3D substrate exhibits outstanding SERS performance and holds significant potential for applications in environmental pollutant detection and food safety.
研究领域:
分析化学
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纳米生物技术
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环境监测
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食品安全
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光谱学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
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2020
·
IF 8.758
Chuxin Lei,Yongzheng Zhang,Dingyao Liu,Kai Wu,Qiang Fu
Polymer-based electromagnetic interference (EMI) shielding materials possess many irreplaceable advantages than metals, such as superior flexibility, easy processing, and low density. However, impeded by their limited mechanical properties, inferior temperature resistance and unsatisfactory electrical conductivity, it is still challenging to extend their shielding applications under some extreme conditions, i.e., <−50 or >200 °C. Herein, we report an ultrathin, highly robust, superflexible, and temperature-stable film via engineering a worm-like aramid nanofiber (ANF) into the rod-like microscopic configuration, followed with self-assembly with Ti3C2Tx (MXene) into a hierarchical brick-and-mortar architecture. With stiff and symmetric aromatic rings fully straightened and well packed into a crystalline form in the backbone, this rod-like ANF enables an augmented network with effective energy dissipation, resulting in the metal-like mechanical properties, i.e., unprecedented tensile strength (300.5 MPa), high Young’s modulus (13.6 GPa), and excellent folding endurance (>10 000 times). More significantly, this MXene/ANF composite film with outstanding specific EMI shielding effectiveness (8814.5 dB cm2 g–1) and flame retardancy performs a broad range of operations in the temperature range from −100 °C (355 MPa) to 300 °C (136 MPa), in which >99% electromagnetic waves could be eliminated; this promises its potential EMI shielding applications even in some extreme conditions.
研究领域:
材料科学
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纳米技术
✓ 已验证
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2020
·
IF 8.758
Yuantao Yan,Xiaoli Zhao,Huanglin Dou,Jingjiang Wei,Zhihua Sun,Yu-Shi He,Qiang Dong,Haisong Xu,Xiaowei Yang
Silicon-based materials are the desirable anodes for next-generation lithium-ion batteries; however, the large volume change of Si during the charging/discharging process causes electrode fracture and an unstable solid–electrolyte interphase (SEI) layer, which severely impair their stability and Coulombic efficiency. Herein, a bundle of silicon nanoparticles is encapsulated in robust micrometer-sized MXene frameworks, in which the MXene nanosheets are precrumpled by capillary compression force to effectively buffer the stress induced by the volume change, and the abundant covalent bonds (Ti–O–Ti) between adjacent nanosheets formed through a facile thermal self-cross-linking reaction further guarantee the robustness of the MXene architecture. Both factors stabilize the electrode structure. Moreover, the abundant fluorine terminations on MXene nanosheets contribute to an in situ formation of a highly compact, durable, and mechanically robust LiF-rich SEI layer outside the frameworks upon cycling, which not only shuts down the parasitic reaction between Si and an organic electrolyte but also enhances the structural stability of MXene frameworks. Benefiting from these merits, the as-prepared anodes deliver a high specific capacity of 1797 mA h g–1 at 0.2 A g–1 and a high capacity retention of 86.7% after 500 cycles at 2 A g–1 with an average Coulombic efficiency of 99.6%. Significantly, this work paves the way for other high-capacity electrode materials with a strong volume effect.
研究领域:
材料科学
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电化学
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纳米能源
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锂离子电池
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功能材料
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界面化学
✓ 已验证
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2023
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IF 6.2
Lanlan Yu,Ningning Liu,Baojun Liu,Fei Yu,Jie Ma
Cathode materials with high capacity and cyclic durability are urgently needed for capacitive deionization . Na 3 V 2 (PO 4 ) 3 is an emerging pseudocapacitive candidate for this process on account of its high capacity and Na + reversible insertion, while it suffers from the intrinsic low electrical conductivity and small electrolyte-accessible surface area. Herein, a sea urchin-like Na 3 V 2 (PO 4 ) 3 @carbon (NVP@C) compound material was synthesized from MXene-V 2 C via hydrothermal method followed by annealing treatment, and then assembled as capacitive deionization (CDI) electrode material . Benefiting from three-dimensional sea urchin-like structure, where the nanoneedles of NVP@C serve as fast transport channel for Na + , NVP@C performed high specific capacity (437 F g −1 at 5 mV s −1 ) and fast ionic diffusion kinetics. Moreover, the NVP@C showed attractive desalination performance as cathode material for CDI, achieving a remarkable adsorption capacity of 74.0 mg g −1 in a NaCl salt solution (1000 mg L −1 ) and long life cycle stability. The present work provides a novel perspective to construct practical redox-active and stable CDI electrode with 3D structure from MXene for highly capacitive and durable desalination application .
研究领域:
材料科学
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电化学
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环境工程
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能源存储
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纳米材料
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水处理技术
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Yuhan Cui,Jing Sun,Yining Wang,Lijie Zhao,Jiawei Wang,Yue Song,Ruixiang Xu,Zhongmin Su
Reasona ble structural frame modification and further optimization design of traditional substrates are favorable schemes to break through the current insufficient energy density of electrode materials for supercapacitors. Transition metal chalcogenides are being investigated as electrode materials for supercapacitors due to their exceptional energy storage capacity. However, single transition metal selenides, transition metal sulfides, or traditional transition metal selenides all have the problems of insufficient conductivity and structural collapse caused by charging and discharging, which limit their path to marketization. In this work, an isomorphic cobalt‑manganese‑selenium sulfide supported by MXene quantum dots (MQDs) based on ZIF was developed using a two-step hydrothermal method to address the energy storage disadvantages of chalcogenides. Thanks to the unique isomorphic skeleton design (enhancing the synergistic effect of selenium and sulfur) and the advantages of MQDs (short-range ion diffusion path) wrapped inside and outside selenium sulfide, MQDS@Mn 0.6 Co 0.4 Se/Mn 0.77 Co 0.23 S composite as supercapacitor electrode broke through the voltage window (0.5 V) of transition metals in alkaline environment, and its charge-discharge window was as high as 0.55 V when the specific capacitance was 1 A g −1 . The assembled asymmetric supercapacitor (ASC) can operate within a large voltage window of 1.6 V. When the power density reaches 817.52 W kg −1 , the energy density is as high as 83.91 Wh kg −1 . At 1.6 V (0.1 V above traditional), capacitance retention drops by only 13.09 % over 10,000 cycles. This study proposes a novel approach to the rational design of transition metal chalcogenides and the transformation of MXene substrates, resulting in electrode materials with prolonged charge-discharge times and a wide voltage window. This discovery provides a new avenue for developing advanced supercapacitor electrodes.
研究领域:
材料科学
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电化学
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纳米材料
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能源存储
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功能材料
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无机化学
✓ 已验证
产品关联
DOI
高影响因子
SURFACE & COATINGS TECHNOLOGY
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2025
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IF 6.1
Zihan Zhang,Zheng Wei,Jiyue Qin,Jiangbo Cheng,Sheng Hong
In this work, a core-shell structure powder containing Ti 3 C 2 T x (MXene) and multi-walled carbon nanotube (MWCNT) was synthesized, and the corresponding composite coating was deposited onto the substrate by high-velocity oxygen-fuel (HVOF) spraying. The structural integrity of MWCNT was well-preserved. With the incorporation of MWCNT and MXene, porosity increased from 1.31 % to 1.73 % while H/E ratio enhanced. Compared to the pristine coatings, the reinforced coatings demonstrated superior performance in creep displacement and plastic deformation. This coating further exhibits strain rate sensitivity, with a tendency toward increased plastic deformation as the strain rate rises. The creep mechanism is ascribed to the synergistic effects of multiple deformation modes, including MXene stretching, MWCNT bridging, dislocation and grain boundary sliding.
研究领域:
材料科学
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表面工程
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复合材料
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纳米材料
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机械工程
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2022
·
IF 10.383
Hao Zhang,Dongzhi Zhang,Bao Zhang,Dongyue Wang,Mingcong Tang
Recently, wearable sensors and electronic skin systems have become prevalent, which can be employed to detect the movement status and physiological signals of wearers. Here, a pressure sensor composed of mesh-like micro-convex structure polydimethylsiloxane (PDMS), MXene nanosheet/Ag nanoflower (AgNF) films, and flexible interdigital electrodes was designed by layer-by-layer (LBL) assembly. The unique microstructure of PDMS effectively increases the contact area and improves sensitivity. Moreover, AgNFs were introduced into the MXene as a “bridge,” and the synergistic effect of the two further enhanced the performance of the sensor. The pressure sensor has high sensitivity (191.3 kPa–1), good stability (18,000 cycles), fast response/recovery time (80 ms/90 ms), and low detection limit (8 Pa), so it can be used for all-round monitoring of the human body. Sensing arrays were integrated with a wireless transmitter as an intelligent artificial electronic skin for spatial pressure mapping and human–computer interaction sensing. Moreover, we develop a smart glove by a simple method, combining it with a 3D model for wireless accurate detection of hand poses. This provides ideas for hand somatosensory detection technology, leading to health monitoring, intelligent rehabilitation training, and personalized medicine.
研究领域:
生物医学工程
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材料科学
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传感器技术
✓ 已验证
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
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2023
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IF 9.5
Bin Xiang,Jingling Gong,Yuqing Sun,Wenhao Yan,Ruirui Jin,Jian Li
Unstable interlayer spacing of lamellar membranes would be rapidly compressed and narrowed under normal high flowrates and concentration polarization effect contributes to reduced permeation and fouling resistance. Herein, a large permeability PEG/MXene@MOF membrane with stable interlayer spacing and superior antifouling property was created via facile interface self-assembly strategy. Metal-organic framework ( MOF , UiO-66-NH 2 ) nanoparticles as supports constructed an intercalation-induced structure with hierarchical Ti 3 C 2 T x (MXene) nanosheets , which effectively regulated the interlayer spacing and improved permeability. Hydrophilic polyethylene glycol (PEG) further enhanced the stability of intercalation structure via hydrogen bonding , so that the PEG/MXene@MOF membrane demonstrated excellent swelling resistance with an average layer spacing expansion of only 0.05 nm even after immersion in water for 8 days. Moreover, MOF particles increased the lamellar roughness and interlayer water retention capacity, resulting in the PEG/MXene@MOF membrane with remarkable separation selectivity and powerful fouling resistance (UWOCA >156°, UWOSA <5.5°). Regarding the purification of oil-in-water emulsions stabilized by surfactants , the PEG/MXene@MOF membrane exhibited extremely stable high permeability (1246 ± 12 L m −2 h −1 bar −1 ) and excellent efficiency (>99.7 %), even during continuous separation of high-viscosity crude oil emulsions for 60 min. In addition, the PEG/MXene@MOF membrane also exhibited superior chemical durability and mechanical robustness in strong-corrosiveness and high-salty environments (72 h), ultrasonic treatments (120 min), bending experiments (100 times) and abrasion tests (20 times). Therefore, this work provided a promising strategy to construct highly permeable membrane with stable interlayer spacing and efficient fouling resistance for practical oily wastewater purification.
研究领域:
膜技术
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水处理
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纳米材料
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环境工程
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材料科学
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表面化学
✓ 已验证
DOI
高影响因子
MATERIALS RESEARCH BULLETIN
·
2025
·
IF 5.7
Xinqi Zhang,Bingxin Wang,Dawu Shu,Wanxin Li,Fangfang An,yueyong Dong
Dyeing wastewater, a common type of wastewater in the textile industry, has a complex composition, deep color, and poor degradability. In this work, hydrothermal method was employed to synthesize Ni@MXene catalysts, and their performance in the Ni@MXene/PMS (peroxymonosulfate) system was investigated. A mixed system containing 7.5 g/L PMS and 0.2 g/L Ni@MXene was stirred for 60 min at 25 °C and pH 6, achieving a degradation percentage of 93.66%, ‧OH are the primary active species in this catalytic system, and the anion has minimal interference with the degradation process. The degradation percentage of the Ni@MXene catalyst can still reach 88.23 % after 3 times of recycling, and the degraded dyeing wastewater can be used for dyeing cotton fabrics. In conclusion, the catalyst demonstrates exhibits significant potential for dye degradation and wastewater recycling, providing valuable insights for energy conservation and emission reduction.
✓ 已验证
产品关联
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.
研究领域:
材料科学
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储能技术
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纳米技术
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电化学
·
电池技术
✓ 已验证
DOI
高影响因子
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
·
2021
·
IF 7.664
Tianpei Sun,Zhiwei Liu,Shuang Li,Hansong Liu,Fan Chen,Kai Wang,Yan Zhao
A MX/CF/Epoxy composite with a 3D network structure was prepared through a one-step impregnation method. Compared with the simple doping of MXene into the polymer matrix , the 3D structure greatly reduces the amount of absorbing filler while improving the microwave absorbing performance of epoxy resin, which realizes the economical and efficient use of absorbing agents. The MX/CF/Epoxy composite has a RL min of −41.46 dB when the content of MXene is only 0.337 wt% and CF is 1.183 wt% with a thickness of 1.83 mm. At the same time, the EVB of the composite can reach 4.67 GHz (10.58–15.25 GHz). The effective improvement on microwave absorbing performance of MX/CF/Epoxy composites is mainly due to the unique 3D foam structure, the interface polarization and dipole relaxation caused by surface functional groups and defects of MX/CF. This work provides new ideas for improving the application potential of epoxy resin-based composites in the field of microwave absorption.
研究领域:
材料科学
·
电磁学
✓ 已验证
DOI
高影响因子
COMPOSITES PART B-ENGINEERING
·
2025
·
IF 14.2
Nuo Xu,Zhihong Ma,Jinzhi Ouyang,Mingkun Jia,Tianyu Zhao,Fengjuan Wang,Wenxiang Xu,Shaohua Chen
Balancing strength and toughness with synergistic enhancement remains a critical challenge in developing high-performance carbon fiber (CF) composites. Deep-sea nautilus exhibits a superior strength-toughness balance compared with shallow-water nacre, attributed to its exceptionally large platelet aspect ratio, densely distributed nano-asperities, and higher organic matrix content that jointly give rise to enhanced interfacial shear resistance through coupled adhesion-friction mechanisms. Inspired by this naturally optimized architecture, we develop a biomimetic “brick-and-mortar” interphase using MXene@TiO 2 assembled with polydopamine/polyethyleneimine (PDA/PEI) nanolayers. Unlike conventional “brick-and-mortar” interphases, the micro-convex TiO 2 nanoparticles on MXene surfaces provide mechanical interlocking and more homogenized stress transfer, while PDA/PEI layers ensures strong chemical adhesion, enabling the simultaneous enhancement of interfacial strength and toughness. The resulting CF-MXene@TiO 2 /epoxy composite exhibits a 66.9 % increase in interfacial shear strength (75.6 ± 3.3 MPa) and a 71.9 % rise in interfacial fracture toughness G ic = 91.3 ± 5.9 J/m 2 , compared to the desized CF. Flexural strength and interlaminar shear strength are also improved by 31.6 % and 46.9 %, respectively. Mechanistic analysis indicates that the synergistic interaction between the micro-convex “brick” (MXene@TiO 2 nanosheet) and the “mortar” (PDA/PEI nanolayer) optimizes the interfacial microstructure, effectively suppressing crack propagation and promoting superior interfacial strength and toughness. This work provides a rational biomimetic strategy to overcome the strength-toughness trade-off and offers potential applications in aerospace, marine, and other high-performance CF composite structures.
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）