JOURNAL OF MEMBRANE SCIENCE
·
2026
·
IF 8.8
Qiankun Wu,Wentian Zhang,Cunxian Lai,Houlong Yang,Fangang Meng,Shanshan Zhao
This study proposes a bio-inspired in-situ cross-linking strategy to address the critical issue of swelling and structural instability in MXene two-dimensional (2D) lamellar membranes. By anchoring gallic acid (GA) onto MXene nanosheets via hydrogen bonding and subsequently coordinating cross-linking with Al 3+ ions, a robust three-dimensional GA-Al network is constructed between the nanosheets. This approach effectively transforms the inherently swellable, loosely stacked MXene assembly into a coordination-crosslinked reinforced lamellar architecture, successfully yielding structurally stable MXene/GA-Al composite membranes with excellent separation performance. The GA-Al network significantly suppressed interlayer swelling (the dry-wet d-spacing difference is only 1.2 Å), enabling precise sub-nanometer channel tuning, mitigating interlayer defects, and improving surface hydrophilicity. The optimized membrane achieved over 99% rejection of Congo red (CR), a pure water permeability of 120.0 L m −2 h −1 bar −1 , and outstanding separation factors of 1105 and 1403 for CR/NaCl and CR/Na 2 SO 4 mixed solutions, respectively. These results outperform most documented 2D lamellar and nanofiltration membranes. This work offers a new design paradigm for developing high-performance, anti-swelling 2D lamellar separation membranes.
✓ 已验证
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2026
·
IF 7.6
Yizhi Jiang,Wenjun Fu,Zhengxin Ding,Rusheng Yuan,Jinlin Long,Chao Xu
Electrocatalytic hydrogenation (ECH) of biomass has emerged as an alternative technology for the green synthesis of valuable chemicals. Nevertheless, the advancement of ECH technology has been significantly impeded by challenges pertaining to electrode activity, selectivity, mass transfer efficiency, etc. In this study, we have successfully developed Ti3C2Tx-MXene species that are suitable for ECH applications and proposed strategies to unlock their ECH performance using wrinkle engineering and electrified membrane (EM) techniques. Specifically, the incorporation of wrinkle architecture within the Ti3C2Tx-MXene nanosheets can enhance the accessibility of active sites in the assembled lamellar membrane electrodes as well as their mass transfer, particularly when utilized as the EM electrodes in the filtration mode. In circumstances where the operating conditions are optimal (voltage, flux, concentration, etc.), the wrinkled Ti3C2Tx EM electrodes with consecutive nanoconfined channels demonstrate exceptional ECH performance in the conversion of furfural to furfuryl alcohol, achieving a high conversion rate of 96.8%, a selectivity of 92.1%, and a Faradaic efficiency of 81.5%. In addition to their excellent catalytic stability, such Ti3C2Tx-MXene EM electrodes also exhibit significant electrocatalytic activity toward other aldehyde-involved biomasses, indicating their wide applicability in the ECH field. This work not only confirms the feasibility of Ti3C2Tx-MXene as a catalytic electrode for ECH but also demonstrates the advantages of wrinkle engineering and EM technology in enhancing its performance, opening up opportunities for advancing the in-depth research of the MXene family materials in electrochemistry.
✓ 已验证
DOI
高影响因子
Small
·
2026
·
IF 11.8
Weihao Xu,Zixuan Wang,Menglong Xu,Runlin Chen,Yurou Guo,Jun Wang
Rationally coupling nanoscale material design with macroscopic architecture is crucial for achieving lightweight absorbers with broadband and strong electromagnetic (EM) wave attenuation. Herein, multiscale-engineered polyimide (PI)/MXene/Ni aerogels integrating magnetic Ni nanochains, dielectric MXene sheets, and anisotropic porous architectures are reported. Ni nanochains with controlled morphology were synthesized via NaOH-assisted hydrazine reduction, while directional freezing enabled the fabrication of random, parallel, and normal aerogel architectures. The normal-aligned PI/MXene/Ni aerogel exhibits a remarkable minimum reflection loss (RL min ) of −72.42 dB at 2.8 mm. Guided by a genetic-algorithm optimization, tri-layer assemblies further expand the effective absorption bandwidth (EAB) to 8.4 GHz while maintaining an outstanding RL min of −61.69 dB. The superior absorption originates from synergistic dielectric–magnetic–structural losses, including interfacial polarization, ohmic/eddy-current dissipation, and gradient impedance matching enabled by the layered porous framework. Beyond EM attenuation, the aerogels feature ultralow density, high compressive strength, enhanced hydrophobicity, intrinsic flame retardancy, and low thermal conductivity, providing effective infrared stealth and thermal protection. This work demonstrates a multiscale design strategy to create multifunctional, broadband EM absorbers for demanding electronic and aerospace environments.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2026
·
IF 8.8
Qifeng Wang,Jiaqi Wei,Qinghao Wu,Zhen Pang,Shujuan Meng,Xiaohu Li,Dawei Liang
Conventional electrosorption (ES) separates ion adsorption and release by physically switching solutions between charging and discharging half-cycles, which causes back-mixing, operational discontinuity, and energy loss. Electrochemical ion pumping (EIP) addresses this limitation by replacing solution switching with circuit switching. However, implementing EIP requires a membrane electrode that simultaneously provides electronic conduction, solution isolation, rapid ion transport, and intrinsic ion selectivity, a combination of functions that remains challenging for existing materials. Here, we demonstrate that anti-swelling free-standing Ti 3 C 2 T x MXene membrane electrodes, fabricated through heat-induced interlayer self-crosslinking and poly (vinyl alcohol)/tannic acid (PVA/TA) modification, can fulfill these combined requirements for circuit-switching EIP. The stabilized lamellar nanochannels provide static mono-/divalent cation sieving in the order NH 4 + > K + > Na + > Li + ≫ Ca 2+ > Mg 2+ , with selectivity coefficients of approximately 22 for NH 4 + /Mg 2+ and 10 for Li + /Mg 2+ . Under electrically driven EIP, the membrane electrodes maintain preferential monovalent cation transport. Short half-cycle operation (0.6 s) keeps each pumping step within a high-rate, low-capacity-per-cycle adsorption/desorption regime, increasing ion flux by approximately 9.4% and charge efficiency by approximately 28.5% relative to a 60 s half-cycle. This work demonstrates a membrane-electrode strategy for dynamic cation sieving and clarifies the structure-transport-stability trade-offs of MXene lamellar electrodes in EIP.
✓ 已验证
产品关联
DOI
高影响因子
Nature Communications
·
2026
·
IF 18.1
Wang Huihui,Gu Jianfeng,Li Chao,Li Donghui,Zhan Weiqing,Zhang Xinmin,Ji Xinyi,Chen Yongsheng,Liang Jiajie
MXenes enable high-performance fibers with strength, toughness, and conductivity, yet weak edge-to-edge interactions between nanosheets remain a critical challenge. Inspired by the cord-bound architecture of lamellar armor, we use molecular cords of carboxymethyl cellulose-wrapped single-walled carbon nanotubes to bridge adjacent MXene nanosheets via ionic coordination. Through mild and continuous wet-spinning, crosslinking, and hot-pressing, we fabricate MXene fibers containing only 0.12 wt% of the molecular cords that deliver enhanced mechanical properties: a tensile strength of 1.48 ± 0.06 GPa (peak: 1.55 GPa), ductility of 17.7 ± 0.8%, and toughness of 131.0 ± 8.7 MJ m −3 (peak: 140 MJ m −3 ), representing enhancements of 480%, 300%, and 1620% over pristine MXene fibers, while retaining electrical conductivity above 10,400 S cm −1 and a volumetric capacitance of 1645 F cm −3 . These molecular cords reinforce interlayer bonding and in-plane bridges, enabling efficient stress transfer and crack inhibition in 2D nanosheet fibers. This molecular cord strategy could potentially be applied to maximize the mechanical performance of fibers derived from other two-dimensional nanosheets.
✓ 已验证
产品关联
DOI
高影响因子
Surfaces and Interfaces
·
2026
·
IF 6
Shuya Lu,Yunsi Wang,Yongcheng Li,Guanshun Xie,Hongling Ge,Zerongruo Sun,Peng Zhang,Benhua Xu,Bingxin Liu
Two-dimensional Ti 3 C 2 T x MXene exhibits promising application prospects in the field of resistive random-access memory (RRAM) owing to its unique layered structure, abundant surface functional groups, and tunable band structure. However, the modulation of its electronic structure is critical for promoting the application of Ti 3 C 2 T x MXene in such semiconductor devices. Herein, chitosan (CS) was incorporated with Ti 3 C 2 T x MXene to construct CS-MXene composite films, which were subsequently employed as the resistive layer in the RRAM devices. The conductivity of Ti 3 C 2 T x MXene can be switched from a metallic-like state to a semiconducting state, and the resistive switching behaviors of CS-MXene hybrid films could be regulated by adjusting the mass ratio of Ti 3 C 2 T x MXene to CS. When the mass ratio of two components was 0.5, the as-fabricated Al/CS-MXene/ITO/glass device exhibited the most outstanding resistive switching (RS) performance, characterized by a lower operating voltage, a higher on/off ratio, excellent retention, and reliable endurance. Mechanistic analysis revealed that the RS behavior originates from the electron trapping/detrapping dynamics within the CS-MXene resistive layer. This work demonstrates high-performance RRAM devices based on CS-MXene composites, offering a feasible strategy for modulating the electronic structure of two-dimensional Ti 3 C 2 T x MXene. Chitosan (CS) was incorporated with Ti 3 C 2 T x MXene to construct CS-MXene composite films, which were subsequently employed as the resistive layer in the RRAM devices. The conductivity of Ti 3 C 2 T x MXene can be switched from a metallic-like state to a semiconducting state, and the resistive switching behaviors of CS-MXene hybrid films could be regulated by adjusting the mass ratio of Ti 3 C 2 T x MXene to CS. When the mass ratio of two components was 0.5, the as-fabricated Al/CS-MXene/ITO/glass device exhibited the most outstanding resistive switching (RS) performance, characterized by a lower operating voltage, a higher on/off ratio, excellent retention, and reliable endurance. Mechanistic analysis revealed that the RS behavior originates from the electron trapping/detrapping dynamics within the CS-MXene resistive layer. Download: Download high-res image (133KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
Nanomaterials
·
2026
·Vol. 16
·期 15
·969
·
IF 4.8
Junaid Aslam,Muhammad Arif Khan,Weiwei Sun,Chao Yang
Germanium (Ge) is a promising high-capacity anode material for lithium-ion batteries; however, its practical application remains limited by substantial volume variation, unstable interfacial reactions, and rapid capacity degradation during repeated lithiation/delithiation. In this work, a binder-free Ge/C/MXene@NF hybrid electrode was developed through a sequential fabrication process, where Ge nanoparticles were immobilized within a PVP-derived carbon matrix supported on a three-dimensional nickel-foam scaffold and subsequently integrated with a Ti3C2TxMXene conductive network to construct a hierarchical Ge/C/MXene hybrid architecture. The nickel foam provides a continuous current-collecting framework and mechanical support, while the MXene network improves electrical connectivity, electrolyte accessibility, and interfacial charge-transfer kinetics. Structural and compositional analyses further indicate the presence of PVP-derived carbon and a possible minor NiGe interfacial phase formed during annealing. Comparison with Ge@NF and the individual component electrodes provides insight into the respective contributions of MXene, Ge, and the PVP-derived carbon framework to the electrochemical behaviour of the composite electrode. Using the total deposited active-material mass as the normalisation basis, the MXene@Ge@NF electrode retains a reversible specific capacity of 789.8 mAh g−1after 100 cycles at an effective current density of 76.2 mA g−1. The observed electrochemical behaviour originates from the integrated contributions of Ge nanoparticles, the PVP-derived carbon matrix, the conductive Ti3C2TxMXene network, the three-dimensional nickel-foam scaffold, and possible Ni–Ge interfacial interactions. Rather than representing a Ge-dominated electrode, this architecture demonstrates the advantages of integrating multiple functional components within a binder-free Ge/C/MXene hybrid architecture.
✓ 已验证
产品关联
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2026
·
IF 5.8
Senyang Song,Fangfang Shang,Mengwei Yin,Qianqian Wang,Yi Liu,Ran Bi,Xiaoyan Ma
Gallic acid (GA) chelates with exposed metal active sites of Ni/Co-DABD MOF, effectively protecting metal ions and elevating MOF coordination stability. • The GA-modified Ni/Co-DABD MOF@NH₂-MXene composite electrode delivers a high specific capacitance of 2044 F g -1 at 1 A g -1 with superior rate capability and cycling durability. • GA modification strengthens the interfacial synergy between MOF and NH₂-MXene, significantly boosting charge transfer efficiency and structural stability of the composite. The limited active sites and poor electrochemical structural stability of metal-organic frameworks (MOF) severely limit their application in electrochemical energy storage. In this study, we used the acid properties of gallic acid (GA) as an etching agent to etch MOF surface active sites. Subsequently, the protonated GA is further chelated with the exposed metal active site, which can effectively protect the metal ions. At the same time, GA provides a large number of phenolic hydroxyl groups, which greatly improves the coordination stability of MOF. A new MOF@MXene composite electrode material was obtained by solvothermal synthesis of GA-modified MOF and aminated MXene. The electrochemical test results show that the new MOF@MXene composite electrode material synthesized by this scheme has high specific capacitance and high rate stability. The functional modification of MOF by GA greatly improves the synergistic binding performance between MOF and MXene, and thus significantly improves the electrochemical stability of composite electrode materials. The mechanism of the electrochemical reaction was investigated by in-situ X-ray diffraction and theoretical calculation. In this paper, the functional mechanism of polyphenols on MOF is described, which provides a new idea for the electrochemical application of MOF. The GA-modified Ni/Co-DABD MOF@NH₂-MXene composite electrode delivers a high specific capacitance of 2044 F g -1 at 1 A g -1 with superior rate capability and cycling durability. Download: Download high-res image (296KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
·
2026
·
IF 8.2
Wenhao Duan,Pengcheng Deng,Genrui Xu,Zhenming Chen,Peng Li,Canhui Lu,Zehang Zhou
Smart materials with multi-responsive soft actuators with desirable electromagnetic interference (EMI) shielding performance are greatly required for next-generation electronics. Herein, a mesoscale assembly strategy via layer-by-layer vacuum-assisted filtration is proposed to fabricate MXene/Fe 3 O 4 /CNF (MC) composite films with precise asymmetric concentration gradients. Driven by the significant hygroscopic swelling mismatch and superparamagnetism, the MC film exhibits high sensitivity and excellent actuation performance under humidity and external magnetic field stimuli. Programmable 2D-to-3D biomimetic “flower buds” and non-contact precise magnetic navigation are successfully achieved. Furthermore, leveraging the highly conductive surface of MXene, a smart switch is developed to convert environmental humidity fluctuations directly into logical electrical (ON/OFF) signals. The introduction of Fe 3 O 4 nanoparticles and the physical gradient structure effectively optimize the hysteresis loss of electromagnetic waves and the bottom-layer back-reflection-triggered multilevel energy dissipation, achieving an impressive EMI SE of 43.4 dB, governed by a reflection-dominated mechanism uniquely enhanced by internal absorption. Combined with rapid, wide-temperature-range photothermal conversion, this work provides a novel design paradigm for intelligent soft robotics and flexible passive electronics in complex environments.
✓ 已验证
产品关联
DOI
高影响因子
Talanta Open
·
2026
·
IF 5.1
Junmei Xia,Hongwen Fan,Yuting Zhuang
MXene-MOF architectural hybrid is prepared for fluoride adsorption. • MSCes exhibit excellent salt tolerance for fluoride adsorption. • MSCes enable efficient fluoride adsorption over a broad pH range. • MSCes perform well in complex environmental samples. Currently, excessive fluoride contamination in groundwater poses a serious threat to drinking water safety, highlighting the need for efficient, simple, and cost-effective strategies for fluoride removal and analysis. Herein, a MXene-engineered Ce-based UiO-66 (MSCe) hybrid is developed for selective fluoride capture and preconcentration from complex water samples. Benefiting from abundant exposed metal sites, reduced interfacial binding resistance, and accelerated mass transfer enabled by MXene engineering, MSCe exhibits excellent structural stability, a broad applicable pH range, high adsorption capacity, and outstanding selectivity toward fluoride. Notably, MSCe maintains excellent fluoride-capture performance even under high-salt conditions, demonstrating its strong tolerance to complex ionic matrices. Among the investigated composites, MSCe-V exhibits the highest adsorption capacity of 218.0 mg g -1 , compared with 194.6 mg g -1 for MSCe-Ti-15, with equilibrium reached within 100 min. The adsorption process followed the pseudo-second-order kinetic and Langmuir isotherm models. This work provides a promising MXene-MOF hybrid platform for selective fluoride preconcentration and expands their application in sample preparation. Download: Download high-res image (176KB) Download: Download full-size image
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
Tibebu Shiferaw Kassa,Abdurohman Mengesha Yessuf,Ayenew Meniber Mihiretu,Teshale Ayano Begeno,Tekeste Dankela Kule,Tassew Belete Bahru,Mohamedazeem M. Mohideen,Yong Liu
The emergence of 5G/6G wireless communication, aerospace, and sophisticated electronics devices has rendered electromagnetic interference (EMI) a serious challenge to device reliability and signal integrity. This intensifying issue demands a lightweight, flexible, and absorption-dominated shielding material. In this study, we employed coaxial electrospinning to fabricate MXene/graphene oxide/polyacrylonitrile core–shell nanofibers. This fabricated core–shell design features a conductive MXene-rich core encapsulated in a graphene oxide/polyacrylonitrile shell, which enhances tensile strength, electrical conduction, dipole polarization, impedance matching, interfacial polarization, and internal reflections, thereby improving electromagnetic wave attenuation. The optimized core–shell nanofiber with a graphene oxide-to-MXene mass ratio of 1:2 exhibited a shielding effectiveness of 68.86 dB (99.99995% electromagnetic wave attenuation), an electrical conductivity of 150.0 S·cm–1, and a specific shielding effectiveness of 14,085 dB·cm2·g–1. In addition to blocking electromagnetic interference, the MXene/graphene oxide@polyacrylonitrile core–shell nanofibers exhibit improved ability to facilitate efficient heat dissipation and prevent localized overheating. This multifunctional core–shell nanofiber design offers a flexible, scalable route to developing next-generation materials for EMI shielding, infrared stealth, and thermal management, with potential applications in the electronics, aerospace, and automotive industries.
✓ 已验证
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING RESEARCH & DESIGN
·
2026
·
IF 4
Hangyang Chen,Shuya Lou,Jun Yuan,Jing Huang,Weiquan Lin,Jiqing Wan,Bing Zhu,Chuanshuai Dong
Conventional Seawater desalination membrane distillation technology suffers from reduced efficiency due to temperature polarisation, severely limiting its practical application. To address this challenge, this study employs surface grafting modification of MXene with HTEOS to fabricate MXene-based composite membranes with hydrophobic properties. The composite membrane exhibits outstanding Joule heating response under DC voltage, demonstrating excellent cycling stability with the cycle-to-cycle peak-temperature fluctuation remained below 2.6% over 20 on/off cycles. Building upon this, a novel in-situ heating-enhanced sweep gas membrane distillation (SGMD) system was established to investigate the influence of operating parameters—including gas flow rate—and in-situ heating on transmembrane permeation flux. Experimental results indicate that the optimum MXene-to-HTEOS hydrolysate volume ratio was 10:2, yielding a water contact angle of 145.0 °. Compared with the PVDF membrane without Joule heating, the maximum flux enhancement of MXene-P@PVDF membrane reached 134.4% at a gas flow rate of 0.1 m 3 ·h −1 under 10 V. At a feed temperature of 40℃, a gas flow rate of 0.3 m 3 ·h −1 , and a liquid flow rate of 10 mL·min −1 , the permeation flux increased from 0.793 to 1.827 kg·m −2 ·h −1 . This substantially improves MD efficiency while mitigating temperature polarisation effects.
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）