ACS Applied Materials & Interfaces
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2024
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IF 8.3
Changfeng Li,Ge Wang,Mengyue Peng,Chenwei Liu,Tangfeng Feng,Yunfei Wang,Faxiang Qin
Reconfigurable metamaterial absorbers (MAs), consisting of tunable elements or deformable structures, are able to transform their absorbing bandwidth and amplitude in response to environmental changes. Among the options for building reconfigurable MAs, origami/kirigami structures show great potential because of their ability to combine excellent mechanical and electromagnetic (EM) properties. However, neither the trial-and-error-based design method nor the complex fabrication process can meet the requirement of developing high-performance MAs. Accordingly, this work introduces a deep-learning-based algorithm to realize the fast inverse design of origami MAs. Then, an accordion-origami coding MA is generated with reconfigurable EM responses that can be smoothly transformed between ultrabroadband absorption (5.5–20 GHz, folding angle α = 82°) and high reflection (2–20 GHz, RL > −1.5 dB, α = 0°) under y-polarized waves. However, the asymmetric coding pattern and accordion-origami deformation lead to typical polarization-sensitive absorbing performance (2–20 GHz, RL > −4 dB, α < 90°) under x-polarized waves. For the first time, a kirigami polarization rotation surface with switchable operation band is adapted to balance the absorbing performance of accordion-origami MA under orthogonal polarized waves. As a result, the stacked origami-kirigami MA maintains polarization-insensitive ultrabroadband absorption (4.4–20 GHz) at β = 0° and could be transformed into a narrowband absorber through deformation. Besides, the adapted origami/kirigami structures possess excellent mechanical properties such as low relative density, negative Poisson’s ratio, and tunable specific energy absorption. Moreover, by modulating the PEDOT:PSS conductive bridges among MXene nanosheets, a series of low-concentration MXene-PEDOT:PSS inks (∼46 mg·mL–1) with adjustable square resistance (5–32.5 Ω/sq) are developed to fabricate the metamaterials via screen printing. Owing to the universal design scheme, this work supplies a promising paradigm for developing low-cost and high-performance reconfigurable EM absorbers.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2024
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IF 9.4
Yamin Feng,Weifeng Liu,Haineng Bai,Yan Zhang,Yunxiao Du,Yongqiang Liu,Long Zhang
Aqueous zinc-ion hybrid micro-supercapacitors (AZIHMSCs) with high power density, moderate energy density, good cycle life and excellent safety are promising candidates for micro-energy storage. Among them, AZIHMSCs based on Ti 3 C 2 T x MXene anodes and battery-type cathodes can provide superior performance. However, two-dimensional (2D) Ti 3 C 2 T x MXene electrodes have an inherent restacking issue and –F surface terminations that hinder ion diffusion and ultimately reduce the energy storage capacity of the corresponding AZIHMSCs. Herein, a deep alkalisation strategy was developed to synthesise oxygen-rich, functionalised MXene (O-MXene) nanofibres to solve these problems. Compared with the traditional 2D few-layered Ti 3 C 2 T x MXene electrode, O-MXene electrodes exhibit an interconnected, three-dimensional (3D) microstructure and ample oxygen functional groups, enhancing Zn 2+ affinity and improving capacitance and rate performance. First-principles calculations further reveal the enhanced interactions between O-MXene electrodes and Zn 2+ supported by atomic interaction, electronic behaviour and orbital hybridization. The AZIHMSCs fabricated with an O-MXene film anode and a MnO 2 -multiwalled carbon nanotubes (MnO 2 -MWCNTs) film cathode exhibit excellent energy density (130.6 μWh cm −2 ), power density (9.5 mW cm −2 ), cycling stability (93.29 % after 5000 cycles) and flexibility (98.43 % capacitance retained at 120° bending). This study will open new avenues for modifying MXene materials and next-generation high-performance AZIHMSCs.
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CHEMICAL ENGINEERING JOURNAL
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2022
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IF 16.744
Tianrui Cui,Yancong Qiao,Ding Li,Xiaorui Huang,Le Yang,Anzhi Yan,Zhikang Chen,Jiandong Xu,Xichao Tan,Jinming Jian,Zhen Li,Shourui Ji,Houfang Liu,Yi Yang,Xuegong Zhang,Tian-Ling Ren
With the advent of an aging society and increasing concern for cardiovascular health, comfortable long-term electrocardiographic (ECG) monitoring systems in daily life are much in demand. If the system can give real-time feedback on cardiovascular status and offer timely personalized advice like doctors, it will be beneficial to promote cardiovascular health and alleviate the imbalance of medical resources. Herein, we report a multifunctional, conformal, and air-permeable electronic skin (e-skin) based on MXene-Polyurethane mesh (MPM). When used as ECG electrodes, the e-skin shows ultra-low electrode–skin contact impedance (4.68 kΩ at 1 kHz), high signal-to-noise ratio (16.5 dB), and high breathability (2.1838 kg/m 2 /day), and can be continuously worn for at least 7 days. As a strain sensor, the e-skin exhibits a large measurement range (>40 %) and unique segmental sensitivity (GF = 172.54 in 0 ∼ 18.64 % and 79.38 in 18.64 ∼ 50 %), which is suitable for detecting both subtle and large physiological signals. More significantly, by combining the MPM e-skin with a flexible printed circuit board (FPCB) and a merged convolutional neural network & long-short-term memory (CNN & LSTM) intelligent algorithm, the acquired wearable intelligent e-skin system can realize daily 12-hour 12-lead ECG monitoring with diagnostic accuracy over 99 % for four arrhythmias. These results show that the MPM e-skin has huge potential in multifunctional intelligent healthcare systems. In particular, an intelligent ECG system similar to a “daily doctor” is proposed for daily long-term cardiovascular health monitoring.
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JOURNAL OF POWER SOURCES
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2021
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IF 9.127
Jinglian Zhu,Xu Zhang,Haiguang Gao,Yuting Shao,Yana Liu,Yunfeng Zhu,Jiguang Zhang,Liquan Li
Rechargeable magnesium batteries (rMBs) are promising techniques suitable for large-scale energy storage systems with low-cost and high safety. However, their development is severely hindered by strong coulombic effect between bivalent Mg 2+ and cathode materials . In this work, two dimensional hierarchical nano-micro hybrids are synthesized by in-situ generating VS 4 nanosheets on carbon-coated Ti 3 C 2 MXene matrix (denoted as VS 4 @Ti 3 C 2 /C). A high-performance rMB system is built by using the hierarchical nano-micro hybrids cathode, magnesium foil anode, and 0.25 M methylpyrrolidinium chloride in 0.25 M 2PhMgCl-AlCl 3 /tetrahydrofuran as the electrolyte. The existence of V–C bond proves that VS 4 is anchored on the surface of Ti 3 C 2 via a strong chemical bond, rather than simply by adsorption. The unique hierarchical nano-micro structure improves the accessibility of the electrolyte and reduces the charge transfer resistance, leading to a high discharge capacity of 492 mA h g −1 at 50 mA g −1 , an outstanding rate performance of 129 mA h g −1 at 1000 mA g −1 , and excellent cycling performance (over 900 cycles at 500 mA g −1 ). Moreover, reversible intercalation of MgCl + into VS 4 @Ti 3 C 2 /C is revealed by investigating the evolution of the hybrids during different electrochemical states. This study will shed light on designing high-performance MXene-based cathode materials for multivalent batteries.
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Journal of Materials Chemistry A
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2025
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IF 9.5
Junxiu Piao,Tianyi Li,Xu Han,Xiaoran Yang,Linze Jin,Zongyao Zhang,Yujie Ping,Sheng Bi
Ti3C2Tx MXene/polymer composites demonstrate a massive potential for multifunctional application in various fields, particularly fire safety enhancement. Unfortunately, designing MXene/polymer composites with a balanced combination of mechanical robustness, high-temperature resistance, high flame responsivity, rapid-fire response, and ultralong alarm duration remains challenging. Here, a bio-inspired, cross-scale, hierarchical design was employed to fabricate an intelligent MXene-based nanocoating (PMS) through the evaporation-induced self-assembly of molecular polyvinyl alcohol, nanometer polydopamine coated silica, and nanometer to micron MXene. This design leverages a bioinspired interaction network, which enhances both strength and toughness, improving the tensile strength and Young's modulus by 210% and 72%, respectively, compared to unoptimized systems. Furthermore, the incorporation of ceramic fusion-assisted carbonization within the MXene-based bionic network endows PMS with exceptional flame retardancy (VTM-0), high flame responsiveness (> 105), ultrafast fire alarm response (~ 0.85 s), and ultralong alarm duration time (> 2930 s). These attributes position PMS as an advanced FAS material with intrinsic fire safety and active fire-fighting performance. This work provides an innovative strategy for designing MXene-based smart materials and advancing high-performance fire warning technologies.
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Biomaterials Advances
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2025
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IF 6
Ding-Yi Zhang,Meng-Xi Wang,Chuang Cai,Wei-Wei Cheng,Yin-Jia Cheng,Wen-Long Liu,Rong Huang,Ai-Qing Zhang,Si-Yong Qin
Diabetic wound healing is extremely difficult, originating from the aspects of bacterial infection, continuous inflammation, hypoxia and excessive reactive oxygen species (ROS), etc. Consequently, multifunctional nanoplatforms capable of highly eliminating bacteria, scavenging ROS and promoting angiogenesis possess a promising prospect. This work reports our fabrication of lipopeptide/Ti 3 C 2 T x MXene nanohybrid to cure bacteria-infected diabetic wounds. Ti 3 C 2 T x nanosheet has been employed to disrupt the bacterial membrane through both the physical puncture mediated by direct contact and mild-temperature photothermal therapy (PTT) due to its excellent photothermal conversion efficiency. Moreover, it exhibits the capacities of ROS scavenging and pro-angiogenesis during the diabetic wound healing process. Positively charged lipopeptide integration on 2D Ti 3 C 2 T x MXene improves the contact of Ti 3 C 2 T x nanosheet with negative bacterial membrane for membrane-anchoring. More importantly, drug-free lipopeptide shows antibacterial capacity, which compensates the decline in therapeutic efficacy of mild-temperature PTT because of its inferior heat intensity. The cooperation between 2D Ti 3 C 2 T x MXene and therapeutic lipopeptide allows for the effective cure on bacteria-infected diabetic wound.
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DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
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2025
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IF 6.9
Zhihao Shi,Bingjue Wang,Ziwei Zhang,Han Chen,Yujie Shi,Yulei Sui,Ling Wu
Transition metal carbides/nitrides (MXene) emerge as promising enhancers for high-capacity metal sulfide anodes, owing to exceptional electrical conductivity, mechanical robustness and adaptable surface chemistry. Here, MXene/SnS 2 heterostructures with a honeycomb architecture are fabricated by a mild liquid-phase deposition method. Density functional theory calculations reveal that the negatively charged MXene terminal groups govern the Sn 4+ cation adsorption, thereby promoting nucleation. By optimizing component dispersion and interfacial bonding, the composite effectively combines the high capacity of SnS 2 with the conductive MXene framework, achieving initial discharge capacities of 1547.0 and 555.3 mAh g −1 at the current densities of 0.1 and 5 A g −1 , respectively. After 1000 cycles, it retains a capacity retention of 69.5 % at 5 A g −1 . The hierarchically structured interface enhances ion transport and pseudocapacitive effects, enabling fast rate performance. The approach provides an idea for designing fast-charging anodes with high energy density.
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ACS Applied Energy Materials
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2025
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IF 5.5
Xudong Li,Xinxin Xing,Bita Farhadi,Haoxiang Zhang,Chao Zhou,Xiaojun Guo,Wei Song,Yuanming Gao,Kai Wang,Ming Chen,Shengzhong Frank Liu
The interaction between the electrode and electrolyte is a critical determinant of the charge storage rate in photorechargeable supercapacitors. Enhancing the electrode’s affinity for the electrolyte is commonly achieved by modifying the electrode surface with polar functional groups and increasing its porosity. However, finely tailored methods specific to particular electrodes remain underdeveloped. In this study, based on DFT calculations, we propose the hybridization of MXene with 4-aminoazobenzene-4′-sulfonic acid sodium to enhance the interfacial affinity between the electrode and electrolyte. Our findings reveal that the −SO3 group facilitates electron transfer from MXene to azo molecules, reducing the desolvation energy of Li+ in electrolytes and thereby increasing wettability. Consequently, the hybrid electrode exhibits an impressive area-specific capacity of 2837.5 mF/cm2. Furthermore, the prepared flexible supercapacitor demonstrates high energy density, retains nearly 100% of its capacitance after 20,000 charge–discharge cycles, and maintains 90% capacitance retention after 5000 bending cycles. When integrated with tandem perovskite solar cells, the photorechargeable supercapacitor effectively stores photogenerated charges, achieving an overall conversion efficiency of 19.4%. These findings underscore the exceptional electrochemical performance of the developed hybrid electrode and its potential for a wide range of energy storage applications.
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高影响因子
ELECTROCHIMICA ACTA
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2025
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IF 5.6
Mingjun Wu,Xunqi Tan,Zhengyi Lu,Qiang Ru
Although aqueous zinc ion batteries have garnered tremendous interest, harsh zinc dendrite growth and interface side reaction as the major stumbling block still hamper the further utilization. Nb-based MXene as efficient artificial interlayer is employed to modulate interface behaviors, orchestrate zinc deposition, and inhibit zinc dendrites. Nb 2 CT x -MXene@Zn symmetrical battery manifests minimal polarizing voltage of 67.7 mV, and can availably arrest structural degradation with a cycle life of 1191 h under the conditions of 1.0 mA cm −2 /1.0 mAh cm −2 . The Nb₂CTₓ-MXene@Zn//(NH₄)₂V₃O₈ full cell demonstrates remarkable cycling stability, maintaining a discharge specific capacity of 233.5 mAh g⁻¹ after 2000 cycles at 5 A g⁻¹. Compared with the bare zinc anode, the Nb₂CTₓ-MXene modified anode exhibits superior performance in terms of coulombic efficiency, rate capability, and corrosion resistance, effectively suppressing zinc dendrite growth and interfacial side reactions. Mechanistic studies reveal that the Nb₂CTₓ-MXene artificial interface optimizes zinc ion deposition behavior, thereby enhancing the cycle life of the zinc anode and the overall battery performance. These findings highlight the promising practical application value of this interface engineering strategy in advancing high-performance aqueous zinc ion batteries.
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ACS Applied Nano Materials
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2025
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IF 5.5
Menghan Guo,Yifan Wang,Wenqing Wang,Fuyang Li,Gang Ye,Yifan Yan,Pengfei Qi,Kexin Luo,Rui Wang
Thermal sensing materials capable of monitoring critical fire risks of combustible materials with a rapid response show great potential in early fire warning. However, the thermoelectric materials used in current fire-warning systems usually have low mechanical strength and poor flexibility, limiting their application in harsh environments and in wearable devices. In this work, a class of multilaminated MXene/aramid nanofiber (ANF)/poly(ethylene glycol) (PEG) composite film (MAP) was developed by a vacuum-induced self-assembly method. Because of the compatibility of the hybrid building units with reinforced interconnections, the MAP films exhibit excellent mechanical properties in terms of tensile strength (139.9 MPa), toughness (20.7 MJ/m3), strain (23.1%), modulus (6.1 GPa), and durability (fold times: 39,991). Moreover, the MAP films showed superior fire retardancy with the LOI value of 35%, exhibiting rapid self-extinguishing capability. Significantly, taking advantage of the thermoelectric effect and continuous conductive paths of MXene nanosheets, rapid cyclic contact/noncontact fire warning (<1 s) was achieved. Integrating the MAP film into the IoT system enabled remote real-time fire monitoring and feedback with a rapid response. In addition, the MAP film can be employed as an early fire-warning coating on textiles, further expanding its wearable fire alarm scope. This work provides a perspective for designing robust wearable early fire detection sensors and fire protection applications.
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MICROCHEMICAL JOURNAL
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2025
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IF 5.1
Jia An,Mengfei Luo,Meizheng Li,Hongyuan Cui,Yufei Liu
Choline, as an important neurotransmitter and metabolic substance, plays an important role in human metabolism, information transmission, regulation of apoptosis, and promotion of fat metabolism, etc. Its level changes and metabolic abnormalities can also be used as diagnostic markers for a variety of diseases. In this study, we developed an advanced electrochemical choline biosensor by modifying the electrode surface with MXene, multi-walled carbon nanotubes functionalized with gold nanoparticles (MWCNT-AuNPs), and Fe 3 O 4 nanoparticles (Fe 3 O 4 NPs). MWCNT will be interspersed with MXene to avoid strong interlayer aggregation. At the same time, the composite of AuNPs and MWCNT can avoid the agglomeration of Au and further improve the conductivity under the synergistic effect. Improve sensor performance through synergistic effect, this combination of multi-component nanomaterials may provide higher electron conduction efficiency and current response rates. The electrochemical sensors, which were doped with various nanomaterials, were thoroughly investigated utilizing electrochemical impedance spectroscopy (EIS) in conjunction with time–current curve analysis. The findings demonstrated that the MXene/MWCNT-AuNPs/Fe 3 O 4 NPs nanocomposites possess a substantial specific surface area, an abundance of active sites, and enhanced electrical conductivity, all of which contributed to the improved conductivity and current response of the enzyme electrode. The resulting biosensor demonstrated superior sensitivity and selectivity for choline detection compared to previously reported electrodes. Specifically, it exhibited a linear range of 0.033–133.33 μM, a sensitivity of 8.8nA/μM, a response time of 5 s, and a detection limit of 22 nM. Importantly, the sensor showed high accuracy in detecting choline levels in human serum and cerebrospinal fluid samples, indicating its potential for practical applications in real-world clinical settings. This advancement holds promise for the effective prevention of the recurrence of glioma, Alzheimer’s disease, Parkinson’s disease, and other related conditions.
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高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2025
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IF 8.3
Yang Shi,Pei Liu,Zhenluo Yuan,Xiaojiao Wang,Qiuming Peng,Shumin Han,Yanping Fan,Baozhong Liu
The exploitation of high-performance catalysts is essential for practical application of hydrogen production technology by ammonia borane (AB) hydrolysis. In this work, we reported an uncomplicated approach to exploit high-performance catalysts for hydrogen production from AB hydrolysis. Using the reducibility of AB, the Ru 0 /Mo 2 C MXene catalyst was synthesized using Mo 2 C MXene as carrier to hydrogen production from AB hydrolysis. The combination of Mo 2 C MXene and Ru nanoparticles exhibited remarkable catalytic performance. The TOF value was 868.6 min −1 and the hydrogen production rate reached as high as 210,464 mL min −1 g Ru −1 at 298 K. Moreover, the Ru 0 /Mo 2 C MXene catalyst showed good durability and continuously produce hydrogen for more than 4 h with a turnover number (TON) of 41293. Characterization analysis revealed that Mo 2 C MXene regulated the coordination environment of Ru, forming electron-rich Mo 2 C MXene and electron-deficient Ru sites. And excellent catalytic activity is benefiting from the enhanced interaction between Mo 2 C MXene and Ru nanoparticles, promoting the effective activation and dissociation of the reactants, which resulted in the improvement of the performance of AB hydrolysis. This work offers an innovative approach to synthesize efficient AB hydrolysis catalysts for hydrogen production.
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