ACS Applied Polymer Materials
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2026
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IF 5.2
Shunxing Wan,Changgeng Li,Junbiao Zhang,Yunjun Ruan,Xiu-Zhi Tang,Tong Guo,Minxian Ma
To address the performance limitations of hydrogels in complex and demanding environments, this study focuses on transforming them from single-function materials into integrated intelligent systems. A multifunctional AUMG6 hydrogel was developed by integrating a urushiol-acrylamide (UH-AAm) copolymer and MXene nanosheets into a water-glycerol binary solvent. The synergistic dual-network structure, which is reinforced by intercalation-enhanced physical interlocking with MXene, exhibited robust mechanical properties, including high elongation (520%), tensile strength (103 kPa), toughness (314 kJ/m3), and compressive strength (1246 kPa). The hydrophobic alkyl chains and adhesive catechol groups enabled strong adhesion to both dry and wet substrates (e.g., wood, glass, silicone) and across diverse chemical environments. The low-volatility water-glycerol medium significantly suppressed dehydration, maintaining stable adhesion for 90 days and a watertight seal for 7 months under ambient laboratory conditions. The embedded MXene conductive network offered robust electromagnetic interference shielding (41 dB) and high-sensitivity detection of human motion and vocal vibrations. Notably, the hydrogel retained flexibility after 60 days of storage at −20 °C, 20 °C, and 60 °C, and retained sensing reliability after 60 days of storage at −20 and 60 °C. This study presents a hydrogel system with durable mechanical, adhesive, electromagnetic, and sensing performance, demonstrating promising potential in applications such as extreme-environment electronics, underwater adhesion, EMI shielding, health monitoring, and intelligent voice recognition.
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ADVANCED FUNCTIONAL MATERIALS
·
2026
·
IF 19.9
Lipeng Wang,Shuai Lu,Ming Qu,Duanyang Liu,Chenyang Zhuang,Guohao Wu,Hong Zhao,Qianyi Zhang,Yingkai Zhang,Yuzhu Wang,Guodong Zhu,Lu Cao,Zuoqin Yan
Conventional piezoelectric scaffolds demonstrate promising prospects in cartilage regeneration by promoting chondrogenic differentiation via electrical stimulation. However, excessive subchondral angiogenesis induced by electrical cues can damage neocartilage and accelerate cartilage degradation, presenting a major obstacle to cartilage repair. Herein, we develop an origami-inspired PLLA (poly Llactic acid)/MXene (two-dimensional transition metal carbide) composite scaffold integrating dual regulatory mechanisms. The electrospun PLLA/MXene nanofibers are assembled into three-dimensional origami structures through template compression. MXene incorporation and origami architecture synergistically enhance piezoelectric output, achieving ∼3.8 V voltage and ∼12 nA current in the scaffolds under cyclic compression, approximately 2-fold higher than pure PLLA scaffolds. The scaffold maintains stable piezoelectric performance under physiological conditions and throughout degradation. Moreover, MXene nanosheets confer rapid and efficient photothermal responsiveness, elevating temperature to mild hyperthermia under near-infrared irradiation to suppress angiogenesis. In vitro studies demonstrate that synergistic piezoelectric-photothermal stimulation promotes chondrogenesis through TRPV4/PI3K/Akt pathway while suppressing tube formation via VEGF/FAK pathway. In a rat osteochondral defect model, the dual-functional scaffold achieves superior cartilage regeneration with enhanced matrix deposition, reduces subchondral vascularization, and preserves the hypoxic niche. This origami-structured piezoelectric-photothermal biomaterial offers a promising strategy for orchestrated cartilage repair through synergistic biophysical cues.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
·
IF 9.6
Guanwang Chen,Peng Su,Jianxiang Zhang,Xinyi Ji,Nianben Zheng,Zhiqiang Sun
Oil-based MXene nanofluids exhibit significant promise for direct absorption solar collectors due to their broadband light absorption. However, poor high-temperature stability limits their practical use. Here, we present an effective strategy to stabilize MXene nanofluids by modifying them with polyaniline (PANI). This approach involves the in situ polymerization growth of PANI on crumpled Ti 3 C 2 T x nanosheets, followed by grafting with oleylamine (OAm). Importantly, we optimized the PANI layer thickness to create a robust steric-repulsion barrier via covalent interfacial bonds, effectively counteracting strong van der Waals forces. Additionally, the crumpled morphology and hydrophobic grafted OAm collectively minimize interparticle attraction. As a result, the modified MXene nanofluids maintained a homogeneous dispersion after heating to 280 °C for 24 h and during thermal aging at 200 °C for 14 days. Moreover, during photothermal cycling tests at 20-sun irradiance with fluid disturbance, the nanofluid reached a peak temperature of 260 °C without significant degradation. Notably, the nanofluids not only showed enhanced stability but also retained high photothermal conversion efficiency, achieving 88.5% at 100 ppm. This work offers a new perspective on overcoming the bottleneck to using nanofluids in practical applications. Download: Download high-res image (154KB) Download: Download full-size image
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COMPOSITES SCIENCE AND TECHNOLOGY
·
2026
·
IF 9.9
Xiaohang Yu,Zhaotian Ba,Yu Long,Meng Xin,Guohua Fan,Chuncheng Hao
Traditional polymer-based dielectric energy storage materials are typically limited by the compromise between low dielectric permittivity and inadequate breakdown strength. This trade-off represents a major bottleneck that severely restricts the enhancement of energy storage performance. In this work, we introduced a ternary composite design that synergistically integrates two-dimensional MXene nanosheets and insulating Al 2 O 3 nanoparticles into a polyvinylidene fluoride (PVDF) matrix. In this structure, the MXene component induces strong interfacial polarization, significantly enhancing the effective dielectric constant, while the Al 2 O 3 filler acts as a nanoscale barrier, inhibiting charge injection and leakage conduction, thereby maintaining high breakdown strength. With a low filler loading of 0.2 wt%, the film demonstrated a dielectric permittivity of 18.15 and a dielectric loss of 0.028. Moreover, the breakdown strength attained 124% of that measured for pure PVDF, and the maximum discharge energy density increased to 4.76 J/cm 3 . This design provides a novel route for energy storage utilizing advanced dielectric materials. Download: Download high-res image (238KB) Download: Download full-size image
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Polymers
·
2026
·Vol. 18
·期 17
·2078
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IF 5.8
Liqun He,Wan Zhang,Jianji Wang,Jianxiao Bian
Polylactic acid (PLA) is derived from renewable resources and can be composted under controlled industrial conditions, but its flammability and brittleness limit wider use. This study combined Ti3C2TxMXene with surface terminations and an intumescent flame retardant (IFR) system based on ammonium polyphosphate and pentaerythritol (4:1,w/w). A styrene–butadiene–styrene (SBS) elastomer was then added to improve toughness. At a total flame retardant loading of 10 wt%, PLA/8.5IFR/1.5MXene reached a limiting oxygen index (LOI) of 30.32% and a UL-94 V-0 rating without dripping. Compared with PLA/10IFR, the peak heat release rate (PHRR) and total heat release (THR) decreased by 18.6% and 28.8%, respectively, and the residue at 600 °C increased from 5.88 to 6.75 wt%. The composite containing MXene formed a denser char and showed a slightly lower Raman D/G intensity ratio. Adding 10 wt% SBS increased notched impact strength by 48% for PLA/IFR and 31% for PLA/IFR/MXene, but reduced tensile strength and modulus. MXene therefore improved the barrier in the condensed phase at a lower IFR content, while SBS partly recovered toughness.
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PubMed
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2026
·
IF 19.9
Zhiheng Sha,Lu Jia,Jiaqian Xu,Suqin Zhou,Pengfei Fei,Jinlei Yang,Hua Wang
Conventional infrared camouflage materials for the human body often cause significant thermal discomfort and are susceptible to generating detectable super-cooled or hot spots. Here, we present a MXene/natural leather composite fabricated through a sequential electro-modulation strategy that largely overcomes this conflict. By exploiting the intrinsic structural gradient of natural leather, synergistic alternating and direct current electric fields drive the self-limiting assembly of MXene nanosheets into a highly oriented, dense layer precisely confined beneath the leather grain surface. This tailored architecture decouples heat conduction from thermal radiation, where the macroporous flesh layer acts as a phonon-scattering thermal barrier that blocks body heat, and the sub-grain MXene layer serves as a highly efficient mid-infrared reflector. Concurrently, the grain layer functions as a smoothing filter, providing compensatory emission and enhanced scattering to eliminate unnatural thermal signatures. Thus, the composite achieves long-lasting (70 min), durable (150 days of natural aging, 5 wash-dry cycles, and 300 friction and folding cycles), omnidirectional and environmentally adaptive thermal camouflage. Remarkably, the composite retains nearly 50% of the intrinsic breathability and water vapor transmission rate of natural leather. This work establishes a versatile structural engineering approach for developing next-generation wearable stealth and personal thermal management technologies.
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CARBON
·
2026
·
IF 12.7
Yingjie Shen,Xiangtian Kuang,Dezheng Zhu,Jianwei Zhao,Wen Wu,Jian Zhang,Qingqing Zhou,Huanxia Zhang
Porous graphene fibre, as a typical carbon-based electrode material, offers numerous advantages including high electrical conductivity, low density and a large specific surface area, leading to its growing demand in the field of dye wastewater degradation. In this study, a porous graphene/MXene composite fibre was fabricated via wet-spinning. The improved GF/MXene-10 material demonstrates exceptional results, with high electrical conductivity (831.35 S/cm), a large specific surface area (99.1173 m 2 /g), strong mechanical strength (140.68 MPa) and exceptional catalytic activity. In terms of dye adsorption, within 7.5 h a 21 cm-long fibre attained an adsorption rate of 85.9% for 35 mL of dye solution. These properties collectively contribute to reduced energy loss during current transmission, enhanced interfacial reaction kinetics and lowered overpotential for the oxygen reduction reaction (ORR), leading to superior degradation performance while reducing the energy consumption of the Electro-Fenton (EF) process. When applied as an electrode in the EF system for methylene blue degradation, GF/MXene-10 achieved 100% removal within 15 min in the first cycle and maintained excellent recyclability. Moreover, the material demonstrated promising degradation efficiency for commercial acid dye wastewater. This study provides a highly promising technical pathway for the efficient treatment of dye wastewater.
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ACS Applied Nano Materials
·
2023
·
IF 5.9
Qingtao Li,Yu Sun,Bing Zhou,Gaojie Han,Yuezhan Feng,Chuntai Liu,Changyu Shen
The development of multifunctional electromagnetic interference (EMI) shielding films with optical transparency is highly urgent as visual windows in modern optoelectronic devices. Herein, Ti3C2Tx nanosheet (MXene)-based transparent conductive films (TCFs) with thermoplastic polyurethane (TPU) as substrates were prepared by simple spraying, which was further applied in high-performance EMI shielding, Joule heating, and photothermal conversion. The comprehensive properties of the transparent MXene/TPU films can be optimized by adjusting the thickness of the MXene layer. The optimal TCF showed a sheet resistance of 119.1 Ω/sq, a transmittance of 43.1%, and an average EMI shielding effectiveness of 10.9 dB. Meanwhile, this TCF exhibited a stable EMI shielding performance to resist bending and stretching. Moreover, the multifunctional MXene/TPU film presented remarkable thermal management performances, including Joule heating (89.4 °C @ 7 V) and photothermal conversion (72 °C @ 100 mW/cm2) abilities. This work presents flexible and stretchable MXene-based TCFs with satisfactory EMI shielding performance and multisource thermal response behavior, which is promising for various transparent and flexible electronic devices.
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高影响因子
CARBON
·
2023
·
IF 10.9
Meng Yu,Ying Huang,Xudong Liu,Xiaoxiao Zhao,Wanqing Fan,Kaihang She
MXene exhibits excellent electromagnetic (EM) wave attenuation ability, but its high dielectric constant is prone to impedance mismatch. Usually, the introduction of other components can adjust EM parameters and improve the impedance matching of MXene. In this paper, MXene/polyaniline (PANI) composites with lots of heterogeneous interfaces were designed and prepared by electrostatic self-assembly process, and PANI was used as impedance matching modifier of MXene to adjust the impedance matching of the composites and achieve greater reflection loss. The effect of the content of PANI nanorods loaded on MXene nanosheets on the EM properties of the material was discussed in this work. The maximum reflection loss (RL max ) of −60.6 dB corresponds to an effective absorption bandwidth (EAB) of 6.0 GHz for the composite with only 10% PANI loading, while the EAB reaches 8.64 GHz when the sample thickness is 2.3 mm. Moreover, the introduction of PANI balances the impedance matching of MXene while bridging individual MXene nanosheets to form a three-dimensional structure that increases the EM wave propagation path . The rich loss mechanisms such as interfacial polarization and dipole polarization provide effective attenuation of EM waves. This work provides a simple way to develop lightweight and broadband EM wave absorption materials .
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高影响因子
COMPOSITES PART B-ENGINEERING
·
2023
·
IF 13.1
Baojun Wang,Zijie Xu,Hao Wu,Fangzhi Huang,Fenghua Liu,Shikuo Li,Hui Zhang
Multilayered Ti 3 C 2 T x MXene , due to its tunable dielectric constants and structural designability, has been identified as rising star for exploring high-efficiency electromagnetic wave absorbers. However, it is still a huge challenge to address insufficient external contact of multilayered MXene at lower filler loading. Herein, inspired by the layer-pillar-layer architecture, a controllable catalytic-assisted nitrogen-doped carbon nanotubes bridging strategy is rationally proposed on the interlaminations of multilayered MXene units (MXene/TiO 2 /NCNTs, denoted as MTNC) to enhance dielectric dissipation ability. Through chemical vapor deposition , the NCNTs bridges as pillars not only break the confinement effect of multilayered MXene architecture like the process of seed germination but also effectively optimize impedance matching and increase dielectric constants. Simultaneously, the unique NCNTs-encapsulated magnetic components successfully prevents the agglomerations of CoNi nanoparticles and local mismatching problems, which facilitates the construction of three-dimensional magnetic coupling network. Specifically, the N heteroatoms and formed TiO 2 species induce dielectric polarization and corresponding relaxation processes. Driven by unique layer-pillar-layer architecture, optimized impedance matching, and synergistic dielectric-magnetic dissipation capabilities, the resultant absorber delivers outstanding reflection loss value of −55.8 dB and broad absorption bandwidth of 5.88 GHz. This work provides a novel structural design strategy and enlightenment for developing high-performance multilayered MXene-based absorbers.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Shuwen Liu,Qiulong Gao,Kaiming Hou,Zhangpeng Li,Jinqing Wang,Shengrong Yang
A sole liquid lubricant or solid lubricant cannot cater to the demands of high-efficiency lubrication performance. From the standpoint of fusion of solid and liquid lubrication, solvent-free nanofluids are expected to be promising lubricants. In this work, solvent-free covalent MXene nanofluids were synthesized by grafting MXene with organosilane (KH560) and polyether amine oligomer (M2070) via covalent linkage. Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, transmission electron microscopy, thermogravimetric analysis and rheological characterizations demonstrated that the MXene nanofluids were successfully synthesized and presented macroscopic fluidity at room temperature. Importantly, when used as a lubricant, the nanofluids perform well in friction-reduction and anti-wear properties even at high velocity (50 Hz), elevated temperature (100 °C), and heavy load (1100 N). The excellent tribological properties are ascribed to the nanofluids integrating the advantages of significantly improved load-bearing capacity and lubrication performance of the core nanomaterials, as well as liquid-like fluidity and self-healing characteristics of the organic shell. Moreover, the formation of 120–180 nm thick tribofilm on the worn steel surface was identified, which is significant in improving the lubrication performance. The above results suggest that the solvent-free MXene nanofluids should be a quite excellent candidate lubricant for integrating the advantages of solid and liquid lubricants and provide theoretical guidance for structural design of high-performance solvent-free nanofluid lubricants.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Xiaoyan Shi,Weiquan Liang,Guoping Liu,Bin Chen,Lianyi Shao,Yanxue Wu,Zhipeng Sun,Felipe García
The development of new energy-related materials is the pinnacle to attaining a sustainable society based on renewable energy. Over the past decades, plenty of electrode materials have been investigated seeking better energy storage properties. However, the often-tedious synthetic procedures and large amounts of solvents utilised during their syntheses incur high costs and severe environmental pollution. Here we present a solvent-free approach to metal–organic-frameworks/MXene-derived carbonaceous metal selenide/MXene composites with unique nanostructures rich in mesopores and macropores. These species can be readily transformed into high-performance electrode materials with enhanced Li/Na ion storage properties compared with their solution-based counterparts. Herein we report not only a unique metal–organic framework/MXene-derived electrode material displaying high-performance for advanced lithium/sodium storage applications but also its novel environmentally benign production process.
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高影响因子
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