JOURNAL OF APPLIED POLYMER SCIENCE
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2025
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IF 2.8
Yaoyao Xiao,Guoxiao Yin,Jin Zhou,Chengbo Tian,Yingying Li,Min Yu
Conductive hydrogels have great potential as flexible sensors in wearable devices. However, it remains a challenge to integrate excellent mechanical properties, high conductivity, and sensitivity into hydrogels using simple green methods. Here, cellulose nanofibers (CNFs) and MXene were introduced into a polyvinyl alcohol (PVA) hydrogel system based on the multi-scale synergistic enhancement mechanism of nanocomposites. By forming interfacial hydrogen bonds and entanglement of molecular chains, a nanofiber-reinforced PVA/CNF/MXene (PCM) hydrogel was developed. MXene enhances the electrical conductivity of the hydrogel, reaching 0.175 S/m, which represents a 191.7% increase compared to the hydrogel without MXene. The synergistic enhancement between CNF and MXene confers the PCM hydrogel with high mechanical strength (334 kPa) and high stretchability (339%). Moreover, PCM hydrogel serves as a strain sensor with outstanding strain sensitivity (GF = 3.25), wide dynamic detection range (0%–220%), and low detection threshold (0.3%), demonstrating excellent stability and durability in response to stimulus signals. The hydrogel sensor enables accurate detection of subtle human movements and synchronized control of robotic arms, demonstrating its broad applicability in motion monitoring and human–machine interaction (HMI).
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高影响因子
ACS Sustainable Chemistry & Engineering
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2025
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IF 7.3
Qiuyan Tang,Wenbin Zhang,Hongzhen Cai,Keyan Yang,Jiankang Zhang,Yibo Zhang,Xiangsheng Han
Conductive hydrogels (CHs) are promising for flexible electronics in artificial intelligence and digital healthcare, but they still lack mechanical durability and long-term stability. Here, sustainable lignin-containing cellulose nanofibers (LCNFs) were used to strengthen the poly(vinyl alcohol) (PVA)/transition metal carbide and nitride (MXene) hydrogels through a simple “one-pot” procedure (abbreviated as P(LxMy)z). Owing to the rigid and polar phenolic hydroxyl groups on lignin, LCNFs formed dense hydrogen bonding with both PVA and MXene, dissipated the external stress, and endowed the composite hydrogels with superior mechanical properties (a tensile strength of ∼1.55 MPa and a toughness of ∼2.85 MJ m–3), conductivity (∼0.13 S m–1), stability, and biocompatibility. Combining all these features, the P(LxMy)z hydrogels demonstrated a sensitive (GF value of ∼2.3) and durable (more than 2400 cycles) response to deformation, which can be applied as an epidermal sensor to detect both drastic (e.g., joint movement) and subtle (e.g., swallow and frown) human motions and even to detect information on different speeches and handwritings. Thus, this work paves a new way to build tough, stable, and biocompatible CHs, demonstrating significant potential for durable and precise epidermal sensing applications.
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ACS Applied Nano Materials
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2025
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IF 5.5
Yongjin Tang,Jin Huang,Wei Xiao,Yang Li,Shuoqing Yan,Jun He
Layered MXene-based magnetoelectric composites have been extensively investigated and applied as microwave absorbing (MA) materials. Although multicomponent composite strategies have been proven to significantly improve the MA performance of materials, the fine structural design and optimization of the functional synergy of absorbers at intricate environments remain scientific issues worthy of further exploration. In this study, FeCo@C/Ti3C2Tx MXene composites were synthesized through a combination of chemical vapor deposition and electrostatic self-assembly techniques. The core–shell structure of ultrafine FeCo@C nanoparticles, with an average diameter of 13.51 nm, has effectively mitigated the adverse effects of harsh environmental conditions due to chemical stability of the carbon layer. Furthermore, the integration of ultrafine FeCo@C nanoparticles with a low filler loading contributed to the overall lightweight characteristic. Notably, the FeCo@C/Ti3C2Tx MXene composites with a 20 wt % filling ratio exhibit a minimum reflection loss (RLmin) of −31.6 dB at 1.7 mm and an effective absorption bandwidth of 5.76 GHz at 2.4 mm. The corresponding absorbing coating achieves a maximum reduction in the radar cross-section of 18.86 dBm2. The FeCo@C/Ti3C2Tx MXene composites exhibit the potential for applications in challenging environments, including high-temperature and humid conditions.
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ACS Omega
·
2022
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IF 4.132
Tianshu Peng,Shanchi Wang,Zhiguang Xu,Tingting Tang,Yan Zhao
Rapid development of highly integrated electronic and telecommunication devices has led to urgent demands for electromagnetic interference (EMI) shielding materials that incorporate flame retardancy, and more desirably the early fire detection ability, due to the potential fire hazards caused by heat propagation and thermal failure of the devices during operation. Here, multifunctional flexible films having the main dual functions of high EMI shielding performance and repeatable fire detection ability are fabricated by vacuum filtration of the mixture of MXene and aramid nanofiber (ANF) suspensions. ANFs serve to reinforce MXene films via the formation of hydrogen bonding between the carbonyl groups of ANFs and the hydroxyl groups of MXene. When the ANF content is 20 wt %, the tensile strength of the film is increased from 24.6 MPa for a pure MXene film to 79.5 MPa, and such a composite film (9 μm thickness) exhibits a high EMI shielding effectiveness (SE) value of ∼40 dB and a specific SE (SSE) value of 4361.1 dB/mm. Upon fire exposure, the composite films can trigger the fire detection system within 10 s owing to the thermoelectric property of MXene. The self-extinguishing feature of ANFs ensures the structural integrity of the films during burning, thus allowing for continuous alarm signals. Moreover, the films also exhibit excellent Joule heating and photothermal conversion performances with rapid response and sufficient heating reliability.
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PubMed
高影响因子
Nano-Micro Letters
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2019
·Vol. 11
·期 1
·1-12
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IF 9.043
Wang Siliang,Wang Qiang,Zeng Wei,Wang Min,Ruan Limin,Ma Yanan
Restricted by their energy storage mechanism, current energy storage devices have certain drawbacks, such as low power density for batteries and low energy density for supercapacitors. Fortunately, the nearest ion capacitors, such as lithium-ion and sodium-ion capacitors containing battery-type and capacitor-type electrodes, may allow achieving both high energy and power densities. For the inspiration, a new zinc-ion capacitor (ZIC) has been designed and realized by assembling the free-standing manganese dioxide–carbon nanotubes (MnO 2 –CNTs) battery-type cathode and MXene (Ti 3 C 2 T x ) capacitor-type anode in an aqueous electrolyte. The ZIC can avoid the insecurity issues that frequently occurred in lithium-ion and sodium-ion capacitors in organic electrolytes. As expected, the ZIC in an aqueous liquid electrolyte exhibits excellent electrochemical performance (based on the total weight of cathode and anode), such as a high specific capacitance of 115.1 F g −1 (1 mV s −1 ), high energy density of 98.6 Wh kg −1 (77.5 W kg −1 ), high power density of 2480.6 W kg −1 (29.7 Wh kg −1 ), and high capacitance retention of ~ 83.6% of its initial capacitance (15,000 cycles). Even in an aqueous gel electrolyte, the ZIC also exhibits excellent performance. This work provides an essential strategy for designing next-generation high-performance energy storage devices.
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ELECTROCHIMICA ACTA
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2022
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IF 7.336
Zhiyi Wu,Shan Zhu,Xiangren Bai,Ming Liang,Xiang Zhang,Naiqin Zhao,Chunnian He
Benefiting from the unique chemical properties and the adjustable layered spacing, MXenes have been paid more attention to the field of energy storage and conversation, especially towards constructing hybrid structure for the use of Li-ion battery anodes. However, most MXene-based composites are achieved by the ex-situ mixing method on the basis of acid-etched MXene, which makes it extremely hard to maintain a good structural stability in the service process. Herein, we proposed a novel one-step in-situ strategy, i.e. SnCl 2 molten salt reaction with Ti 3 AlC 2 for synthesizing Sn-nanoconfined Ti 3 C 2 T x MXene composites. During the synthesis process, SnCl 2 not only executed as the Lewis acid to etch Ti 3 AlC 2 for obtaining Ti 3 C 2 T x MXene, but could also be in-situ transformed to Sn nanoparticles confined between the Ti 3 C 2 T x MXene layers. The 2D layer-confined effect inhibited the spontaneous coarsening of metal Sn at high temperature as well as the huge volume expansion during the electrochemical cycles. Meanwhile, the in-situ formed Sn nanoparticles as pillar played a decisive role in enlarging interlayered active spacing of Ti 3 C 2 T x MXene for Li-storage. As a result, the surprising enhancement of electrochemical Li-storage performances could be achieved during long-term cycling. This work provides a novel route to explore the application of MXene based on the molten salt methods.
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CARBON
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2020
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IF 8.821
Fei Pan,Lunzhou Yu,Zhen Xiang,Zhicheng Liu,Baiwen Deng,Erbiao Cui,Zhong Shi,Xiang Li,Wei Lu
Although low-dimensional materials have already been studied as attractive electromagnetic wave absorption materials due to unique structure, it is still hard to acquire both ultrathin matching thickness and strong absorbing capability. Herein, multilayer-sandwiched Ti 3 C 2 T x MXene heterostructure decorated with one-dimensional Co nanochains has been synthesized successfully through a facile in situ process. As expected, the EM wave absorbers with ultrathin matching thickness and excellent absorbing capability are realized in the MXene composites. Compared with the MXene/Co nanoparticles , the MXene/Co nanochains composites achieved a minimum reflection loss of −46.48 dB with an ultrathin matching thickness of only 1.02 mm at 16.75 GHz. The intrinsic mechanism of the absorption revealed that the conductive loss, polarization loss, magnetic loss and interlacing magnetic flux field effect contributed to the high-performance microwave absorption. This work not only provided a unique direction for the designing and synthesizing of highly efficient EM wave absorbents with an ultrathin thickness, but also shed additional light on the understanding of the absorbing mechanism.
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CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Fanyu Xie,Yuan Du,Menghan Chu,Xiaoyu Jia,Hui Cao,Rui Zhang,Hongwei Li,Mei Zhang
Fiber-typed zinc ion hybrid supercapacitors (ZIHSCs) have become the potential electrode materials for new generation of energy storage devices due to its low cost, abundant source and its low redox potential can expand the operating voltage window and increase energy and power density. But, the development of ZIHSCs is still in its infancy, and it is necessary to optimize the structure of electrode materials and design fibrous devices. Two-dimensional MXene materials are widely used in electrode manufacturing, which is of great significance to the development of fiber-typed supercapacitors and is expected to become excellent cathode materials for zinc ion supercapacitors. However, assembling them into regularly arranged macrofibers is challenging. Here, we precisely regulated and constructed the ordered and porous reduced graphene oxides/MXene fibers (rGO/MXene) by microfluidic assisted wet spinning technology. Graphene oxide (GO) was used as a spinnable material and lamellar spacer to achieve 10 % rGO/MXene fiber with high MXene loading. Among them, 10 % rGO/MXene was used as a symmetric supercapacitor electrode material, and the specific capacitance in PVA/H 2 SO 4 electrolyte was as high as 1613 mF cm −2 . The 10 % rGO/MXene fiber and 70 % rGO/MXene@Zn fiber were used as cathode and anode materials, and assembled into a zinc-ion hybrid supercapacitors (ZIHSCs) under PVA/Zn(CF 3 SO 3 ) 2 gel electrolyte, and an outstanding specific areal capacitance of 1180 mF cm −2 , wide voltage window of 0–1.6 V, high energy density of 104.9 μWh cm −2 and good practical applications can be realized. In addition, the capacitor has good stability at different bending angles. The expansion of energy and power output can be achieved by series or parallel configuration. This study provides a new way for the design of the high-performance flexible zinc ion supercapacitors.
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高影响因子
LANGMUIR
·
2025
·
IF 3.9
Qing Feng,Mingyuan Dou,Zhenpeng Li,Jing Yang,Shuai Zou,Lixia Wei,Fuchuan Huang
The two-dimensional nano MXenes have unique microstructures and physicochemical properties, showing great potential in enhancing or replacing traditional metal processing lubricants. Here, a stable oil-in-water emulsion was constructed by coassembling Ti3C2TX MXene modified with phosphonic acid containing C10 alkyl chain and Tween 80 at the oil–water interface. The emulsion exhibits efficient friction-reducing and antiwear performance as well as corrosion resistance. The effect originates from the formation of a physical adsorption film and tribochemical reaction film stabilized by the interlocking of long carbon chains on the friction interface. This study provides a model of “material functionalization-interface synergy” for developing metal processing lubricants.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Maolin Yu,Xiaowen Zhang,Long Chen,Mengjuan Hou,Na Li,Lijian Xu,Xiaojian Zhu,Zhiyi Gao,Jianxiong Xu
Conductive hydrogels are ideal building blocks to fabricate wearable electronics. However, their performance still suffers from harsh environmental conditions. Herein, a self-healable, environmental temperature resistant, NIR light-induced photothermal responsive and conductive double network hydrogel (MXCNH) was prepared by integrating photothermal reagent of well-dispersible polydopamine-modified MXene (MXene@PDA) into a carboxymethylcellulose sodium (CMC Na) as the first network, flexible poly( N -(2-hydroxyethyl)acrylamide- co - N -isopropylacrylamide) P(HEAA- co -NIPAm) as the second network matrix in ethanol-water binary solution via UV polymerization. The optimized hydrogel showed excellent mechanical properties (stress/strain of 666.4 kPa/2141 %), adhesion (936 kPa for steel), and conductivity (0.61 S/m), enabling strain sensors with high gauge factor (2.05 at 200–400 % strain). Further, MXCNH hydrogel-based triboelectric nanogenerator (MX-TENG) exhibited enhanced 15.2 % V OC (158.44 V at 61.2 °C) upon a NIR light irradiation. MX-TENG also generated favorable electrical output performances (open-circuit voltage: V OC = 126.61–178.62 V) and long-term stability (stable after one month storage) in ranging from −20 °C to 50 °C. These remarkable comprehensive properties enabled applications in self-powered sensing and energy harvesting with a wide temperature range. Meanwhile, MXCNH hydrogel served as a wearable heater for NIR-triggered thermal management, demonstrating significant potential for clinical treatments.
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高影响因子
DIAMOND AND RELATED MATERIALS
·
2026
·
IF 5.2
Marium Mushtaq,Tingkai Zhao,Abdul Jalil,Syeda Khair Un Nisa,Xianghong Li
Suppressing secondary electromagnetic reflection while maintaining high shielding effectiveness remains a central challenge for conductive MXene-based electromagnetic interference (EMI) shields. Here, 2D/0D MXene/BaFe 12 O 19 nanostructures were constructed by electrostatic self-assembly. The assembly combined negatively charged MXene nanosheets with poly(diallyldimethylammonium chloride) (PDDA)-functionalized BaFe 12 O 19 nanoparticles. This surface-charge-mediated assembly suppresses MXene restacking, creates dielectric–magnetic heterointerfaces, and systematically regulates the complex permittivity and permeability. The incorporation of BaFe 12 O 19 moderates the excessive permittivity of MXene and introduces resonance-type magnetic loss. These interrelated effects thereby alleviate the dielectric–magnetic imbalance, allowing more incident electromagnetic energy to enter and be attenuated within the shield. At a thickness of 1 mm paraffin-based toroidal specimen, MXF-3 reaches a maximum total shielding effectiveness (SE T ) of 58.0 dB at 10 GHz, with an absorption shielding effectiveness (SE A ) = 48 dB and reflection shielding effectiveness (SE R ) = 10 dB. Spin-polarized density functional theory calculations reveal orbital coupling and static charge redistribution at the MXene/BaFe 12 O 19 interface, providing electronic-structure insight into the interfacial interactions. These results demonstrate that electrostatic self-assembly is an effective route for preparing powder-based MXene/hexaferrite functional fillers for X-band EMI shielding. Download: Download high-res image (292KB) Download: Download full-size image
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高影响因子
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
·
2022
·
IF 9.463
Mei Wan,Congling Shi,Xiaodong Qian,Yueping Qin,Jingyun Jing,Honglei Che,Fei Ren,Jian Li,Bin Yu
In this study, three-dimensional flower-like Ni-MOFs were fabricated and successfully functionalized on multi-terminal lamellar MXene (Ti 3 C 2 T x ) by solvothermal method, and their flame retardant application in thermoplastic polyurethanes (TPU) was investigated. As expected, the addition of Ni-MOF@Ti 3 C 2 T x can improve the flame retardancy and smoke suppression properties of TPU. The heat release rate, the smoke release rate, total smoke production, CO and CO 2 release of the composite with only 1 wt% MOF@Ti 3 C 2 T x were significantly reduced by 15%, 44%, 26%, 18%, and 8%, respectively. Furthermore, the carbon residues of TPU/Ni-MOF@Ti 3 C 2 T x composites were about 2–5 times that of pure TPU, indicating that the Ni-MOF@Ti 3 C 2 T x can inhibit the thermal degradation of TPU. The mechanism illustrated that the excellent fire safety properties of TPU/Ni-MOF@Ti 3 C 2 T x composites are due to the physical barrier, catalytical carbonization, and gas-phase flame retardant of Ni-MOF@Ti 3 C 2 T x . In this work, the dispersity, thermal stability, and flame retardancy of MXene were improved due to the modification of MXene with Ni-MOF by chemical bonding and physical adsorption, which can broaden the range of applications of MOFs .
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高影响因子
危险品化学品经营许可证（带存储）