Journal of Materials Chemistry A
·
2019
·Vol. 7
·期 13
·7516-7525
·
IF 10.733
Guodong Zou,Bingcheng Ge,Hao Zhang,Qingrui Zhang,Carlos Fernandez,Wen Li,Jianyu Huang,Qiuming Peng
Increasing environmental problems and energy challenges have created an urgent demand for the development of green and efficient energy-storage systems. The search for new materials that could improve the performance of Li-ion batteries (LIBs) is one of today's most challenging tasks. Herein, a stable symmetric LIB based on the bipolar material-MXene/Na0.55Mn1.4Ti0.6O4 was developed. This bipolar hybrid material showed a typical MXene-type layered structure with high conductivity, containing two electrochemically active redox couples, namely, Mn4+/Mn3+ (3.06 V) and Mn2+/Mn (0.25 V). This MXene/Na0.55Mn2O4-based symmetric full cell exhibited the highest energy density of 393.4 W h kg−1 among all symmetric full cells reported so far, wherein it is bestowed with a high average voltage of 2.81 V and a reversible capacity of 140 mA h g−1 at a current density of 100 mA g−1. In addition, it offers a capacity retention of 79.4% after 200 cycles at a current density of 500 mA g−1. This symmetric lithium ion full battery will stimulate further research on new LIBs using the same active materials with improved safety, lower costs and a long life-span.
✓ 已验证
DOI
高影响因子
ACS Nano
·
2021
·
IF 15.881
Mingyuan Chao,Lingzhang He,Min Gong,Na Li,Xiaobin Li,Longfei Peng,Feng Shi,Liqun Zhang,Pengbo Wan
Flexible, breathable, and degradable pressure sensors with excellent sensing performance are drawing tremendous attention for various practical applications in wearable artificial skins, healthcare monitoring, and artificial intelligence due to their flexibility, breathability, lightweight, decreased electronic rubbish, and environmentally friendly impact. However, traditional plastic or elastomer substrates with impermeability, uncomfortableness, mechanical mismatches, and nondegradability greatly restricted their practical applications. Therefore, the fabrication of such pressure sensors with high flexibility, facile degradability, and breathability is still a critical challenge and highly desired. Herein, we present a wearable, breathable, degradable, and highly sensitive MXene/protein nanocomposites-based pressure sensor. The fabricated MXene/protein-based pressure sensor is assembled from a breathable conductive MXene coated silk fibroin nanofiber (MXene-SF) membrane and a silk fibroin nanofiber membrane patterned with a MXene ink-printed (MXene ink-SF) interdigitated electrode, which can serve as the sensing layer and the electrode layer, respectively. The assembled pressure sensor exhibits a wide sensing range (up to 39.3 kPa), high sensitivity (298.4 kPa–1 for 1.4–15.7 kPa; 171.9 kPa–1 for 15.7–39.3 kPa), fast response/recovery time (7/16 ms), reliable breathability, excellent cycling stability over 10 000 cycles, good biocompatibility, and robust degradability. Furthermore, it shows great sensing performance in monitoring human psychological signals, acting as an artificial skin for the quantitative illustration of pressure distribution, and wireless biomonitoring in real time. Considering the biodegradable and breathable features, the sensor may become promising to find potential applications in smart electronic skins, human motion detection, disease diagnosis, and human–machine interaction.
✓ 已验证
DOI
PubMed
高影响因子
Materials Science & Engineering C-Materials for Biological Applications
·
2020
·
IF 5.88
Yunxiu Liu,Qiuyang Han,Weizhong Yang,Xueqi Gan,Yuanyi Yang,Kenan Xie,Lu Xie,Yi Deng
Two-dimensional (2D) MXene nanomaterials have explored as a great potential candidate for tumor therapy during recent decades, especially for photothermal therapeutic applications. However, MXene-based drug-carriers cannot be elaborately controlled in cancer therapy. To solve the problem, a heterostructured titanium carbide-cobalt nanowires (Ti 3 C 2 -CoNWs) nanocarrier is developed for synergetic anticancer with magnetic controlling ability, dual stimuli-responsive drug release, and chemo-photothermal therapy. The structure, drug loading/release behavior, magnetic controlling capacity, photothermal performance, and synergistic therapeutic efficiency of the Ti 3 C 2 -CoNWs nanocarrier heterojunction are investigated. The heterostructured Ti 3 C 2 -CoNWs nanocarrier exhibits excellent photothermal conversion efficiency under 808 nm laser irradiation and high drug loading ability (225.05%). The doxorubicin (DOX) release behavior can be triggered by acid pH value (4–6) or near-infrared (NIR) irradiation. The Ti 3 C 2 -CoNWs nanocarrier heterojunction with synergistic chemo-photothermal therapeutic effect exhibits strong lethality for cancer cells than that of chemotherapy or photothermal therapy (PTT) alone. Therefore, Ti 3 C 2 -CoNWs nanocarrier heterojunction will be a promising choice for improving the efficiency of cancer treatment.
✓ 已验证
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2022
·
IF 10.383
Yawen Zhang,Dongyun Chen,Najun Li,Qingfeng Xu,Hua Li,Jinghui He,Jianmei Lu
Two-dimensional (2D) materials are candidates for use in advanced molecular separation and water treatment. Among them, MXenes are cutting-edge two-dimensional (2D) materials with favorable properties such as high hydrophilicity, adjustable interlayer spacing, high mechanical strength, and structural stability. Therefore, they can be used to construct advanced lamellar membranes to ensure enhanced separation performance of modified membranes. Here, we prepared novel stable lamellar membranes through electrostatic attraction between polycation polyethyleneimine (PEI) and a negatively charged MXene, with hydrogen bond formation between their functional groups. By changing the pH of the suspension, the interlayer d-spacing of the prepared membrane could be altered to achieve precise molecular separation and ultrahigh organic solvent penetration. Furthermore, inserting PEI into the interlayer d-spacing of the membrane did not hinder the passage of water molecules. The prepared pH = 2-MXene-PEI membrane for dyes larger than 1.5 nm exhibited a rejection rate of greater than 96%, and the pH = 10-MXene-PEI membrane had a rejection rate of greater than 96% for dyes larger than 1.6 nm. In addition, the optimized MXene-PEI membranes showed channel stability. In this work, high-performance, stable, 2D MXene-PEI membranes with tunable nanochannels were developed. These membranes have great potential for use in precise molecular separation applications.
✓ 已验证
DOI
PubMed
高影响因子
SOFT MATERIALS
·
2022
·
IF 1.619
Yan Bai,Shuaihang Bi,Weikang Wang,Ning Ding,Yuyuan Lu,Mengyue Jiang,Chengbo Ding,Weiwei Zhao,Ning Liu,Jing Bian,Shujuan Liu,Qiang Zhao
With the booming growth of flexible human-computer interactions and telecommunications, it is desirable to fabricate a high-sensitivity strain sensor to monitor human movement and develop an electromagnetic interference (EMI) shielding materials to protect modern microelectronics and humans from electromagnetic damage. Herein, the biocompatible, stretchable, and compressible cellulose/MXene hydrogel has been prepared to first realize the dual-functional applications in strain sensor and EMI shielding. Two-dimensional MXene nanosheets serve as conductive sensing materials and fillers to construct conductive networks. The hydrogen bond interaction between them enhances the mechanical property of hydrogel. Benefiting from the excellent electrical conductivity and good mechanical property of the cellulose/MXene hydrogel, the resultant strain sensor displays excellent tensile strain (~144.4%), high sensitivity (gauge factor ~ -6.97), adjustable detection range (0-68.7%), fast response time (~100 ms), and great stability (~1000 cycles). It can monitor human motion, including pulse beating, speech recognition, writing sensing and pressure distribution induction of 4 × 4 sensor array platform. Moreover, the cellulose/MXene hydrogel presents an absorption-predominant EMI shielding performance in the frequency of X-band. This work provides a new inspiration for the development of multifunctional hydrogel in artificial intelligence, human-computer interaction, and EMI shielding technique.
✓ 已验证
DOI
高影响因子
Energy Materials
·
2026
·Vol. 6
·期 10
·N
·
IF 11.9
Luowen Suo\u003Csup\u003E1,2\u003C\u002Fsup\u003E,Haihang Feng\u003Csup\u003E1,4\u003C\u002Fsup\u003E,Ziwei Zhang\u003Csup\u003E2\u003C\u002Fsup\u003E,Haibo Hu\u003Csup\u003E2\u003C\u002Fsup\u003E,Jun Wang\u003Csup\u003E1,\u003C\u002Fsup\u003E,Huamin Chen\u003Csup\u003E3,\u003C\u002Fsup\u003E
Flexible self-powered sensors based on transition metal carbides/nitrides (MXenes) are considered for intelligent human-machine interfaces (HMIs), but their use is limited by ambient oxidation and mechanical fragility during repetitive deformation. In this work, a surface-coating strategy is used to prepare PVA/MXene composite films, in which poly(vinyl alcohol) (PVA) is bonded to MXene through interfacial hydrogen bonds. The PVA layer reduces MXene’s exposure to moisture and oxygen and limits crack propagation under cyclic mechanical stress. The resulting triboelectric nanogenerator delivers a peak output voltage of 50 V with an Ecoflex counter layer and a maximum power density of 6 μW/cm2. The device charges a 2.2 μF commercial capacitor to ≈2.7 V within 60 s. A self-powered sensor array combined with a machine-learning model is used to distinguish six hand gestures; a support vector machine classifier reaches 93.33% ± 6.09% accuracy on the collected signals (45 samples, stratified 5-fold cross-validation). These results support the development of durable flexible self-powered devices and HMIs.
✓ 已验证
DOI
高影响因子
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
·
2026
·
IF 8.2
Yuyang He,Yuxin Ma,Xinglai Yuan,Linyi Li,Limeng Song,Linan Wang,Haibin Wang,Fan Zhang,Rui Zhang,Bingbing Fan
An electrostatic–driven self–assembly strategy was employed to fabricate LM@MXene core–shell composites for EMW absorption. • The LM@MXene composites exhibit excellent processability and colloidal stability. • The optimized absorber delivers excellent performance with an RL min of −62.91 dB and an EAB of 3.52 GHz. • The electromagnetic–wave absorption performance was enhanced by polarization loss due to the formation of LM and MXene heterogeneous interfaces. The rapid proliferation of high-frequency electronic devices demands high-performance electromagnetic wave (EMW) absorbing materials. As an emerging functional filler, liquid metal (LM) has demonstrated significant potential for microwave absorption. However, the inherent high surface tension and fluid nature of LM pose substantial challenges to achieving structural stability and processability, making the construction of robust LM-based architectures a formidable task. Herein, an electrostatic‑driven self‑assembly strategy was adopted to fabricate LM@MXene core‑shell composites for electromagnetic‑wave absorption via activating the liquid‑metal surface, which generates active cations to trigger the spontaneous assembly of MXene nanosheets. As a result, the LM@MXene composites exhibit excellent microwave absorption performance: the minimum reflection loss (RL min ) reaches − 62.91 dB at ultrathin thickness of 1.0 mm, and a maximum effective absorption bandwidth (EAB max ) of 3.52 GHz at the thickness of 1.1 mm. The outstanding electromagnetic absorption performance was primarily dominated by polarization loss and conduction loss. Specifically, the multi-level conductivity gradients across the LM core, the native oxide layer, and the MXene shell induce pronounced charge accumulation and relaxation at these heterogeneous interfaces. Thus, this composite structural design provides a potential route for fabricating high-performance EMW-absorbing materials.
✓ 已验证
DOI
高影响因子
Green Energy & Environment
·
2017
·
IF 0
Kaikai Li,Tifeng Jiao,Ruirui Xing,Guodong Zou,Qianran Zhao,Jingxin Zhou,Lexin Zhang,Qiuming Peng
MXene is a new type of layered two-dimensional transition metal carbide materials differing from graphene, demonstrating intriguing chemical/physical properties. Here the chemical modification of MXene and next fabrication of core–shell MXene–COOH@(PEI/PAA) n composites have been investigated. The obtained MXene-based composites were treated with gold nanoparticles to form MXene–COOH@(PEI/PAA) n @AuNPs nanocomposites, and their catalytic properties for nitro-compounds were studied. The prepared nanocomposites demonstrated good catalytic activity and reproducibility, showing potential applications in composite catalysts and environmental fields.
✓ 已验证
DOI
JOURNAL OF HAZARDOUS MATERIALS
·
2020
·
IF 9.038
Zhengyou Zhu,Congcong Liu,Fengxing Jiang,Jing Liu,Xiumei Ma,Peng Liu,Jingkun Xu,Lei Wang,Rui Huang
Rational and smart design of hydrogen (H 2 ) sensors especially those featured with flexibility and light weight is highly desirable, to meet the requirements for future development of portable H 2 sensors. In this work, we demonstrate a novel paper film H 2 sensor employing Ti 3 C 2 T x MXene nanosheets with Pd colloidal nanoclusters (Pd CNC) as the activator. The MXene@ Pd CNC paper film was facilely prepared via an all-colloidal solution-based vacuum-filtration process, which is flexible, light-weight and endowed with a compact, glossy surface. The as-obtained MXene@ Pd CNC film sensor displayed moderate H 2 response at room temperature at either flat or bent states. Specially, the MXene@Pd CNC film sensor delivered a response time of (32 ± 7) s and a sensitivity of S = (23.0 ± 4.0)%@4% H 2 . In addition, the MXene@Pd CNC sensor enabled “in-situ-mode” H 2 detection directly along a piece of paper film with desired size. The strong H 2 adsorption into lattice of ultrafine Pd CNC altered the work function thus induced the electron doping of MXene, which explained the gas sensing mechanism. Therefore, the facilely designed MXene@Pd CNC sensor is believed to contribute to development of future portable and wearable sensing electronics.
✓ 已验证
DOI
PubMed
高影响因子
ENVIRONMENTAL RESEARCH
·
2022
·
IF 8.431
Dan Zhou,Mengmeng Liang,Xingyue Bao,Tiezhu Sun,Yi Huang
Soil colloid is a nonnegligible factor when evaluating the environmental risk of engineered nanoparticles (ENPs) in the groundwater. In this study, the environmental fate of an emerging ENP (Ti 3 C 2 T x MXene) in the groundwater was investigated for the first time, which currently poses a severe environmental risk due to its cytotoxicity but has received little attention. The colloidal dispersion stability and degradation kinetics of Ti 3 C 2 T x MXene in the groundwater were evaluated by considering the effects of soil colloids prepared from sodium humate (SH), montmorillonite (MT), and a natural soil (NS) under variable solution chemistry. The results showed that the affinity of soil colloids with Ti 3 C 2 T x followed an SH > MT > NS sequence. Increasing SH concentration led to Ti 3 C 2 T x disaggregation by enhancing the electrical and steric repulsive forces, while MT and NS resulted in hetero-aggregation because of the elevated collision frequency. SH and MT enhanced the critical coagulation concentrations of Ti 3 C 2 T x by 100 and 10 folders, respectively, via surface coating process, while NS slightly reduced due to the bridging effects induced by the soluble cations. The soil colloids promoted Ti 3 C 2 T x degradation compared with their absence and in an SH > MT ≫ NS sequence. SH and MT were through forming Ti–O–C and Si–O–Ti bonds with Ti 3 C 2 T x via their carboxyl and hydroxyl groups, respectively, rendering the Ti 3 C 2 T x surface more reactive and faster degradation. NS showed a weak promotion effect because of its less affinity with Ti 3 C 2 T x and limited organic matter and clay contents with hydroxyl and carboxyl groups . This study demonstrated the unstable environmental behaviors of Ti 3 C 2 T x in the groundwater and mitigated its environmental risk concerns.
✓ 已验证
DOI
PubMed
高影响因子
ACS Nano
·
2021
·
IF 15.881
Yunyi Zhu,Ji Liu,Tong Guo,Jing Jing Wang,Xiuzhi Tang,Valeria Nicolosi
The fast development of terahertz technologies demands high-performance electromagnetic interference (EMI) shielding materials to create safe electromagnetic environments. Despite tremendous breakthroughs in achieving superb shielding efficiency (SE), conventional shielding materials have high reflectivity and cannot be re-edited or recycled once formed, resulting in detrimental secondary electromagnetic pollution and poor adaptability. Herein, a hydrogel-type shielding material incorporating MXene and poly(acrylic acid) is fabricated through a biomineralization-inspired assembly route. The composite hydrogel exhibits excellent stretchability and recyclability, favorable shape adaptability and adhesiveness, and fast self-healing capability, demonstrating great application flexibility and reliability. More interestingly, the shielding performance of the hydrogel shows absorption-dominated feature due to the combination of the porous structure, moderate conductivity, and internal water-rich environment. High EMI SE of 45.3 dB and broad effective absorption bandwidth (0.2–2.0 THz) with excellent refection loss of 23.2 dB can be simultaneously achieved in an extremely thin hydrogel (0.13 mm). Furthermore, such hydrogel demonstrates sensitive deformation responses and can be used as an on-skin sensor. This work provides not only an alternative strategy for designing next-generation EMI shielding material but also a highly efficient and convenient method for fabricating MXene composite on macroscopic scales.
✓ 已验证
DOI
PubMed
高影响因子
Polymers
·
2020
·Vol. 12
·期 10
·2192
·
IF 3.426
Qiu-Shi Rao,Song-Yi Liao,Xing-Wen Huang,Yue-Zhu Li,Yi-Dong Liu,Yong-Gang Min
In this work, a few-layer MXene is prepared and sprinkled on a commercial polypropylene (PP) separator by a facile spraying method to enhance the electrochemistry of the Ni-rich LiNi0.8Co0.1Mn0.1O2(NCM811) cathode. Scanning electron microscope (SEM) and X-ray diffraction (XRD) are used to characterize the morphology and structure of MXene. Fourier transform infrared spectroscopy (FT-IR) and a contact angle tester are used to measure the bond structure and surface wettability PP and MXene/PP separator. The effect of the MXene/PP separator on the electrochemical performance of ternary NCM811 material is tested by an electrochemical workstation. The results show that the two-dimensional MXene material could improve the wettability of the separator to the electrolyte and greatly enhance the electrochemical properties of the NCM811 cathode. During 0.5 C current density cycling, the Li/NCM811 cell with MXene/PP separator remains at 166.2 mAh/g after the 100 cycles with ~90.7% retention. The Rctof MXene/PP cell is measured to be ~28.0 Ω. Combining all analyses results related to MXene/PP separator, the strategy by spraying the MXene on commercial PP is considered as a simple, convenient, and effective way to improve the electrochemical performance of the Ni-rich NCM811 cathode and it is expected to achieve large-scale in high-performance lithium-ion batteries in the near future.Keywords:polypropylene composite membrane;MXene;Ni-rich LiNi0.8Co0.1Mn0.1O2;electrochemical performance
✓ 已验证
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）