JOURNAL OF POWER SOURCES
·
2025
·
IF 7.9
Wenqiang Ai,Jinnuo Yang,Jiahui Lv,Ya'nan Zheng,Ruiqi Wang,Yang Liu,Lei Zu,Huiqin Lian
Sodium-ion batteries (SIBs) attract significant interest due to the abundance and affordability of sodium resources, alongside their environmentally sustainable profile. Nevertheless, further research is required to improve high-rate performance and long-term cycling stability. Black phosphorus (BP), with its high theoretical specific capacity, and MXenes, known for their excellent electrical conductivity and multiple functional groups, are both promising anode candidates for SIBs. To address these challenges, a composite anode of BP/Ti 3 C 2 T X MXene/carbon nanotubes (CNTs) (BMC) containing phosphorus-oxygen-titanium (P-O-Ti) bonds is prepared through a straightforward two-step ball milling process. The microstructure and bonding conformation of the BMC composite material are studied using a variety of characterization methods. Compared to the BP/CNTs (BC) anode, the BMC anode demonstrates superior cycling stability and high-rate performance. Kinetic analysis further reveals favorable electrochemical performance. The P-O-Ti bonds in BMC significantly enhance SIBs performance by stabilizing the BP-based composite structure. As a result, the reversible specific capacity of BMC anode reaches 630.7 mAh g −1 after 1400 cycles at 2.0 A g −1 . Furthermore, the reversible specific capacity remains stable at 281.1 mAh g −1 even after 1000 cycles at 10.0 A g −1 . This work presents a straightforward method for preparing BMC anodes.
研究领域:
材料科学
·
电化学
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产品关联
DOI
高影响因子
CRYSTAL GROWTH & DESIGN
·
2025
·
IF 3.4
Jiayi Tian,Peng Liu,Yahao Zhao,Wei Zheng,Gen Li,Changchun Han,Wen Liu,Qing Li,Zhijie Den,Xinguo Ma,Furong Ye,Yizhong Huang
Vanadium dioxide (VO2) is a promising material for smart windows due to its metal–insulator transition that enables dynamic solar transmittance modulation. In this study, VO2 (M) nanoparticles were synthesized using a novel approach involving the self-supported structure of V4C3 MXene derived from V4AlC3. Through selective etching, solvothermal oxidation and annealing, VO2 (M) nanoparticles with enhanced thermochromic properties were produced. The self-supported structure of V4C3 MXene significantly reduced particle agglomeration and improved crystallinity, resulting in VO2 (M) films with a luminous transmittance (Tlum) of up to 58.3% and a solar modulation ability (ΔTsol) of 6.3%. The study also demonstrated that film thickness and hydrogen peroxide concentration critically influence optical and thermochromic performance. This study provides a new approach for the preparation of MXene-based VO2 thermochromic smart window materials and is expected to promote their application in the field of building energy conservation.
研究领域:
材料科学
·
能源与建筑节能
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产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2024
·
IF 6.3
Li Liu,Tao Chen,Liping Han,Zhuo Qian,Junpeng Li,Guoyou Gan
The Thermal Conductive Silver Adhesive (TCSA) efficiently transfers heat from electronic components to heat dissipation components, preventing overheating and extending device lifespan. Despite the effectiveness of commercial sintered nano TCSA, high production costs necessitate a more affordable, high-performance preparation method. This study presents a strategy for preparing ultra-high thermal conductivity (TC) TCSA using multidimensional thermal conductive fillers and low-temperature sintering of silver nanoparticles (AgNPs). MXene@AgNPs particles are synthesized via in-situ reduction of AgNPs on MXene surfaces. These particles, combined with silver microflakes (AgMFs) as primary fillers and epoxy (EP), undergo low-temperature heat treatment to form the AgMFs-MXene@AgNPs/EP composite. Characterization and computational models show that filler-filler interface thermal resistance (ITR f-f ) is critical for TC. Adding MXene alone is insufficient, but using MXene@AgNPs particles as secondary fillers allows AgNPs to interconnect fillers, effectively reducing the ITR f-f . The resulting composite achieves an ultra-high TC of 65.51 Wm −1 K −1 with 63 wt% total filler content (60 wt% AgMFs, 3 wt% MXene@AgNPs). This study advances the development of low-cost, high-performance TCSA for thermal management applications.
研究领域:
材料科学
·
热传导工程
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产品关联
DOI
高影响因子
Journal of Materials Chemistry A
·
2025
·
IF 9.5
Fayun Wei,Fanghua Liang,Yanrui Zhao,Zhuyu Ji,Ruiqing Li,Hui Liu,youchao Kong,Honggang He,Weichun Huang,Chunyan Cao,Wei Zhang,Bin Fei,Mingzheng Ge,Tingting Yan
High-capacity conversion-type anodes with high volume expansion and low conductivity face limitations in meeting the high energy density demands of lithium-ion batteries. Herein, MOF-derived CoSe2/ZnSe bimetallic selenide nanoparticles are confined in layered Ti3C2Tx MXene (CoSe2/ZnSe@MX) as electrodes for high-performance lithium-ion batteries by in-situ self-assembly and selenization strategy. The interconnected conductive MXene networks not only can provide highways for charge transfer, but also can effectively accommodate the large volume expansion, improving the structural stability. Meanwhile, the bimetallic CoSe2/ZnSe nanoparticles with heterostructures and Se vacancies offer abundant redox reaction sites, promote Li-ions diffusion, and enhance Li-ions adsorption. Thus, the CoSe2/ZnSe@MX electrodes exhibit a remarkable capacity of 830.8 mAh g-1 at 0.1 A g-1, high-rate capability of 290.8 mAh g-1 at 5 A g-1, and superior cycling stability with 63.1% capacity retention after 2000 cycles. Furthermore, the full cell was demonstrated practical applicability with a high capacity of 156 mAh g-1 at 0.1 C. This facile technique is promising to construct high-performance energy storage devices.
研究领域:
材料科学
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能源存储
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产品关联
DOI
高影响因子
COMPOSITES SCIENCE AND TECHNOLOGY
·
2024
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IF 8.3
Fan Xie,Qiaoling Liu,Xiyi Dai,Haitao Wei,Zhaoqing Lu
Multi-functional electromagnetic interference (EMI) shielding materials are crucial for advanced electronic devices, requiring low thickness, exceptional shielding performance, and stability, especially in extreme conditions. In this study, the hollow sandwich MXene/h-AgNWs/ANF (AMAgMA) composite films were fabricated via template sacrificing method and layer-by-layer vacuum assisted filtration. Specifically, the hollow MXene was created using PMMA as the template, together with AgNWs for the conductive layer, while ANF provided stability and high temperature resistance as the protective layer. The optimized EMI shielding efficiency (SE) reached 88.2 dB for a film thickness of 93 μm, with an SSE/t value of 18160 dB cm 2 ·g −1 , which was attributed to the hollow structure and continuous double conductive network design. Remarkably, EMI SE of the films maintained even after 70 days of exposure to oxidation, acid, alkali, salt, and ultrasonic treatment thanks to the sandwich design. Additionally, the composite films displayed excellent heat transfer and thermal stability (530 °C), alongside notable flame retardancy and self-extinguishing properties. The superior EMI shielding performance and stability in extreme environments suggest a promising application potential in advanced electronics.
研究领域:
材料科学
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电子工程
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产品关联
DOI
高影响因子
Catalysis Science & Technology
·
2021
·Vol. 11
·期 14
·4953-4961
·
IF 6.119
Junyue Li,Ziyi Wang,Huayu Chen,Qiqi Zhang,Huilin Hu,Lequan Liu,Jinhua Ye,Defa Wang
Photocatalytic reduction of carbon dioxide (CO2) into hydrocarbon fuels has attracted increasing research attention in recent years. However, the fast recombination of photoinduced charge carriers and poor adsorption/activation capability of CO2 molecules limit the photoconversion efficiency. Herein, we report on loading a two-dimensional (2D) titanium carbide (Ti3C2) MXene as a noble-metal-free cocatalyst onto zinc oxide (ZnO) via a facile electrostatic self-assembly method for efficient CO2 photoreduction. It is interesting to find that the ZnO loaded with 7.5 wt% of surface-alkalinized Ti3C2 exhibited remarkably improved evolution rates of CO (30.30 μmol g−1 h−1) and CH4 (20.33 μmol g−1 h−1), which were approximately 7-fold and 35-fold those of bare ZnO, respectively. The surface-alkalinized Ti3C2 MXene is believed to play a crucial role in improving the separation/transfer of photoinduced charge carriers and the adsorption/activation of CO2 molecules, accounting for the superior photocatalytic activity of CO2 reduction. Our work demonstrates that the Ti3C2 MXene could be employed as a noble-metal-free cocatalyst for efficient photocatalytic CO2 reduction.
研究领域:
材料科学
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环境科学
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能源科学
✓ 已验证
DOI
高影响因子
ACS Applied Nano Materials
·
2022
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IF 6.14
Xuan Li,Wei Wang,Wenhua Cai,Hao Liu,Haihui Liu,Na Han,Xingxiang Zhang
Wearable portable electronic devices have become an indispensable part of the modern lifestyle because of their smart, convenient, and fashionable features. Fiber-based nanogenerators are generally used as energy supply systems in wearable portable electronic devices. In the present work, poly(vinylidene fluoride) (PVDF) and poly(l-lactic acid) (PLLA) were used in triboelectric layers of hybrid tribopiezoelectric nanogenerators (HNGs). Two-dimensional MXenes and one-dimensional multiwalled carbon nanotubes (MWCNTs-COOH) were used as conductive nanofillers introduced into electrospun nanofiber membranes. A 132-fold increase in the electrical power density of a PVDF nanofiber-based piezoelectric nanogenerator was observed under the synergistic effect of MXenes and MWCNTs-COOH. Finite-element simulations were performed to determine the optimum values of the triboelectric layer thickness and spacing for HNGs, and an MXenes/MWCNTs-COOH/PVDF-PPLA-based HNG with a power density of 18.08 W m–2 was constructed. We present a series of elaborations to demonstrate an effective way to improve the output performance of tribopiezoelectric nanogenerators. In addition, an HNGs-based wearable portable electronic device was fabricated to help humans interact with virtual reality.
研究领域:
材料科学
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能源技术
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纳米技术
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2024
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IF 13.3
Weijun Yang,Wei Zhou,Ning Ding,Sudan Shen,Daqian Gao,Debora Puglia,Yaqiang Duan,Pengwu Xu,Tianxi Liu,Zhenyu Wang,Piming Ma
Thermosetting shape memory polymers (TS-SMPs) have a higher shape fixity ratio ( R f ) and shape recovery ( R r ) due to their structure integrity and thermal stability, and the glass transition temperature ( T g ) usually influences the transition temperature ( T trans ) of TS-SMPs. Therefore, it is significant to tailor the T g range and mechanical properties for TS-SMPs. In this work, the inherently flame-retarding bio-based MXene-reinforced polythioether nanocomposites with excellent shape memory performance, driven by photothermal response, were designed. Firstly, a photopolymerizable MXene nanomonomer (MPS-MXene) was obtained by introducing 3-(methacryloxy) propyltrimethoxysilane onto the surface of the MXene monolayer. Then, the bis(4-allyl-2-methoxyphenyl) phenyl phosphonate (BEP) was synthesized by eugenol (a lignin derivative) with phenyl phosphonic dichloride. The polythioether/MXene composites (BEP-T- x M) were synthesized through in-situ thiol-ene photopolymerization of MPS-MXene, BEP, and tris[2-(3-mercaptopropionyloxy)ethyl]isocyanurate. Surprisingly, compared with neat polythioether, the T g of BEP-T-0.2 M composite increased from 19.6 to 34.6 °C, when only 0.2 wt% MPS-MXene was added. The photothermal conversion efficiency ( η = 73.8 %) and shape memory performance with R r (>98 %) were greatly improved. Consequently, the interesting phenomena such as “sunflowers growing towards the sunlight” and “thermal shrinkage” can be observed. Meanwhile, the tensile strength and Young’s modulus increased significantly by 141 % and 91 %, respectively, due to the good dispersion of rigid MPS-MXene nanosheets. Furthermore, all the polythioether/MXene composites showed self-extinguishing performance. This study will provide a novel strategy for designing biobased photothermal-responsive TS-SMPs.
研究领域:
材料科学
·
高分子科学
·
纳米技术
·
消防安全工程
✓ 已验证
产品关联
DOI
高影响因子
Scientific Reports
·
2024
·Vol. 14
·期 1
·1-12
·
IF 3.8
Dong Chaoyang
To improve anti-icing traits of outdoor coatings, a synergy between photothermal and hydrophobic anti-icings was utilized to fabricate copolymer/Ti 3 C 2 T x MXene composite coatings with good transparency and adhesion. MXene contributes to photothermal trait from local surface plasmon resonance effect. Copolymer enables hydrophobicity from perfluoroalkyls-induced low surface energy and high surface roughness. An increase in MXene dose results in an increased surface roughness. With 140.0 ± 2.2° of water contact angle and 70% of light transmittance, the optimal film bears 2 wt% of MXene. High MXene dose results in large temperature-increase of film under sunlight. After 15 min of sunlight exposure, the temperature of optimal film surface in icing simulation increases from − 18 ℃ to 7.2 ℃. After 48 h of acid immersion, the temperature-increase of optimal film surface based on 300 s of sunlight irradiation reaches 28.7 ± 1.2 ℃. After 48 h of ultraviolet irradiation, the temperature-increase of optimal film surface is 30.7 ± 0.8 ℃. This surface has a water contact angle of 132.7 ± 1.1° after 48 h of acid immersion. This study gives impetus to a preparation of various composite coatings for outdoor anti-icing/deicing.
研究领域:
材料科学
·
表面工程
·
能源材料
✓ 已验证
产品关联
DOI
PubMed
高影响因子
RARE METALS
·
2022
·Vol. 41
·期 6
·2084-2093
·
IF 6.318
Cai Zhuo,Ma Yi-Fei,Wang Mei,Qian A.-Niu,Tong Zhao-Min,Xiao Lian-Tuan,Jia Suo-Tang,Chen Xu-Yuan
MXene has given great promises to supercapacitor electrode material due to its high conductivity and redox properties. However, the self-agglomeration of the MXene lamella will reduce its contact area with the electrolyte and generate a tortuous transportation pathway of the electrolyte ions, thereby reducing its capacitive performance and rate capability. In this work, we engineered the electrolyte ion channels by adjusting the MXene lamella size and inserting holey graphene (HG) nanosheets into the interlayer of the MXene flakes. The developed MXene/HG electrode can not only avoid the self-restacking of MXene but also provide unimpeded ion transport channels. As a result, the supercapacitive and rate performances of the small MXene lamella-based MXene/HG (S-MXene/HG) supercapacitor are prominently ameliorated. By adjusting the content of HG, the S-MXene/HG 0.05 electrode exhibits excellent gravimetric capacitance of 446 F·g −1 and a rate capability of 77.5%. The S-MXene/HG 0.05 -based symmetric supercapacitor provides an impressive energy density of 14.84 Wh·kg −1 with excellent cyclic stability of 96% capacitance retention after 10,000 cycles. This demonstration of the engineering of the ion channels shows great potential in two-dimensional material-based supercapacitor electrodes. Graphical abstract
研究领域:
材料科学
·
能源存储
✓ 已验证
DOI
高影响因子
CARBON
·
2024
·
IF 10.5
Liang Yin,Yiqian Wang,Ziqi Zhao,Yuyan Liu,Ningning Cao,Ting Shi,Xiaolong Zhang,Zhen Yu,Jingfeng Wang,Zhimin Fan
MXene (Ti 3 C 2 T x ) nanosheets produced through wet etching are typically obtained as low-concentration (<1 wt%) aqueous dispersions, leading to challenges like easy oxidation, high storage and transportation costs, and difficulties in direct processing. Here, we introduce a rapid and efficient technique to capture and semi-solidify single-layer MXene nanosheets using an erasable capture agent, transforming low-concentration MXene dispersions into high-solid-content (>85 wt%) semi-solids within minutes. This approach preserves the intrinsic properties of the MXene, imparts long-term stability, and enables reversible redispersibility. Importantly, the capture agent is fully removable without special treatment and can be recycled. Moreover, the method generalizes to other MXene compositions (e.g., Ti 2 CT x ) and hydrophilic two-dimensional materials such as graphene oxide. Devices fabricated from semi-solid MXene stored for extended periods exhibit excellent functionalities including infrared stealth, Joule heating, electrochemical energy storage, and electromagnetic interference shielding. This rapid capture and semi-solidification strategy significantly streamlines the transition from MXene synthesis to practical applications, paving the way for industrial-scale utilization of MXene.
研究领域:
材料科学
·
化学工程
✓ 已验证
DOI
高影响因子
JOURNAL OF NANOBIOTECHNOLOGY
·
2025
·Vol. 23
·期 1
·1-22
·
IF 12.6
Yang Ningning,Hua Rongrong,Lai Yingying,Zhu Peijun,Ding Jian,Ma Xianhui,Yu Gaoxiang,Xia Yiheng,Liang Chao,Gao Weiyang,Wang Zhouguang,Zhang Hongyu,Yang Liangliang,Zhou Kailiang,Ge Lu
In the field of large-area trauma flap transplantation, preventing avascular necrosis remains a critical challenge. Key mechanisms for improving flap viability include angiogenesis promotion, oxidative stress inhibition, and cell death prevention. Recently, two-dimensional ultrathin Ti 3 C 2 T X (MXene) nanosheets have gained attention for their potential contributions to these processes, though MXene’s physiological impact on flap survival had not been previously investigated. This study is the first to confirm MXene's biological effects on the ischaemic microenvironment post-skin flap transplantation. Findings indicated that MXene significantly decreased the necrotic area in ischaemic flaps (37.96% ± 2.00%), with reductions of 30.40% ± 1.86% at 1 mg/mL and 20.19% ± 2.11% at 2 mg/mL in a concentration-dependent manner. Mechanistically, MXene facilitated in situ angiogenesis, mitigated oxidative stress, suppressed pro-inflammatory pyroptosis, and activated the PI3K-Akt pathway, particularly influencing vascular endothelial cells. Comparative transcriptome analysis of skin tissues with and without MXene treatment provided additional evidence, highlighting mechanisms such as pro-inflammatory pyroptosis, ROS metabolic processes, endothelial cell proliferation regulation, and PI3K-Akt signaling pathway activation. Overall, MXene demonstrated biological activity, effectively promoting ischaemic flaps survival and presenting a novel strategy for addressing ischaemic necrosis in skin flaps. Graphical abstract
研究领域:
医学
·
生物材料学
·
分子生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）