JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2024
·Vol. 107
·期 10
·6911-6920
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IF 3.5
Ruixue Bai,Mian Li,Lingyan Feng,Qing Huang
The family of MAX phases and their two-dimensional derivative MXenes attract significant attention due to their unparalleled properties. Synthesis of MAX phases and MXene from biomass sources is important to expand their biology-related applications, while it remains a challenge. The present work explores the possibility to synthesize MAX phases and subsequently derive MXenes by using biomass precursor. Ti 3 AlC 2 MAX phase was synthesized by using glucose as the carbon source in molten salt. The conversion behavior from glucose to Ti 3 AlC 2 was investigated, and the conversion rate of carbon from glucose reached to 70.4% by optimizing the reaction conditions. The as-obtained Ti 3 AlC 2 can be derived into Ti 3 C 2 T x MXene and MXene quantum dots by common chemical treatments, which provides possibility for biomass-derived nanolaminates applying in biological applications such as biological catalysis, bioinstrumentation, and biological tracking.
研究领域:
材料科学
·
生物医学工程
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产品关联
DOI
高影响因子
Journal of Materials Chemistry C
·
2022
·Vol. 10
·期 40
·14929-14938
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IF 8.067
Xudong Liu,Yong Liu,Shangli Dong,Xuefeng Zhang,Shida Hou
Chemical doping of MXenes with heteroatoms is expected to be a promising strategy for enhancing their electrochemical performance. Nevertheless, the synergistic effects of chemical doping and 3D structure construction have rarely been investigated in depth. Aiming to avoid MXene nanosheet restacking and further enhance the electrochemical performance, herein, we reported a simple strategy combining nitrogen doping with a 3D structure construction on MXenes via a one-step hydrothermal method. The location and types of nitrogen doping can be adjusted by hydrothermal conditions. The obtained nitrogen-doped Ti3C2Tx aerogel had an ultra-high specific surface area of 200.8 m2 g−1 with high porosity. The open reticular walls can expose more nitrogen-enriched Ti3C2Tx edges to the electrolyte. Nitrogen dopants at the edges of Ti3C2Tx nanosheets produced more number of active sites and provided higher pseudocapacitance, and the presence of N-C4 increased the electron mobility of Ti3C2Tx, which reduced charge transfer resistance evidently. As a result, the nitrogen-doped Ti3C2Tx aerogel showed an excellent specific capacitance (531 F g−1 in H2SO4 electrolyte) with good cyclic stability (remaining 96% after 5000 cycles).
研究领域:
材料科学
·
电化学
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DOI
高影响因子
COMPOSITES COMMUNICATIONS
·
2020
·
IF 4.915
Guichen Song,Qihuang Deng,Bo Wang,Zhiduo Liu,Chen Ye,Xianzhe Wei,Dan Dai,Zhongbin Pan,Wei Li,Shulin Song,Li Fu,Cheng-Te Lin,Nan Jiang,Jinhong Yu
In virtue of its excellent performance and abundant surface terminations, MXenes, a newly emerged 2D materials , greatly exhibit promising applications in many fields of energy storage and electromagnetic shielding. Ti 3 C 2 , a member of MXenes, is widely investigated in recent years. However, lack for attention in thermal property and corrosion behavior. Here, Copper matrix composites were prepared by Spark Plasma Sintering , in which TiC and few-layer Ti 3 C 2 nanosheets as filler. The results exhibit corrosion resistance of the Ti 3 C 2 /Cu composites were improved compared to TiC/Cu composites, benefiting from outstanding electrical conductivity and easily oxidized property of Ti 3 C 2 . However, the thermal conductivity of Ti 3 C 2 /Cu composite with the content of 2 wt% Ti 3 C 2 improves about 15% compared to TiC/Cu composites with same content, resulting from the low inherent thermal conductivity of filler and lattice mismatch between copper and filler. Moreover, the electrical resistance of Ti 3 C 2 /Cu composites increases about 100% with the content of 2 wt% Ti 3 C 2 at interfacial contact resistance measurement compared with pure Cu. Meanwhile, the anti-corrosion performance of the Ti 3 C 2 /Cu composites was improved over pure Cu. This work will broaden appliance field of Ti 3 C 2 and lay the foundation for the future research.
研究领域:
材料科学
·
能源与环境工程
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Yuchen Liu,Qi Tang,Mao Xu,Jie Ren,Chan Guo,Cheng Chen,Wenjing Geng,Weiwei Lei,Xiaoli Zhao,Dan Liu
MXenes family has attracted intense interests owing to their unique physical and chemical features. However, current preparation approaches for MXenes holding complex procedures and strict conditions, time-consuming, as well as low production hinder their further potential applications. Here, we developed an efficient one-step mechanical exfoliation (ECO-ME) method for the rapid and high-yielding of Ti 3 C 2 , which offers a dramatic reduction in preparation time compared to conventional methods. The ECO-ME synthetic pathway was then demonstrated as a universal method for Ti 2 C. The ECO-ME MXenes formed stable colloids in aqueous and dispersed well in seven organic solvents for over 30 days, respectively. In addition, the prepared MXene showed the ability to load several nanoparticles at room temperature for 100% reduction of p -nitrophenol in around 10 min. This study, therefore, offers an efficient, energy conservation and universal method for the preparation of Ti-based MXenes, endowing MXenes with broad application prospects.
研究领域:
材料科学
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化学工程
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环境科学
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产品关联
DOI
高影响因子
Nature Synthesis
·
2026
·
IF 22.6
Li Fangbing,Long Yu,Wu Zhitan,Ye Ruiqing,Li Zhiguo,Zhang Boya,Yu Jinyang,Wang Feifei,Chen Zihui,Geng Chuannan,Chi Sijia,Wang Li,Lin Zifeng,Simon Patrice,Tao Ying,Yang Quan-Hong
Green, scalable and efficient synthesis methods are critical for advancing MXene research and practical applications. However, the production of delaminated MXenes still relies on complex multistep processes to achieve both selective etching and delamination. Here we propose a single-step strategy to directly transform MAX phases into delaminated MXenes using a deep eutectic solvent (DES) based on cobalt chloride/choline chloride (CoCl 2 ·6H 2 O/ChCl). This system combines a redox process between Lewis acidic salts and A-site elements with an expansion effect from organic ligand decomposition, enabling integrated etching, delamination and surface functionalization. The DES-derived MXenes exhibit unique surface chemistry with –Cl, –O and –NH y R 1− y terminations, delivering exceptional lithium-ion storage performance (451 mAh g −1 at 0.05 A g −1 ). Notably, this approach yields MXenes with positively charged surfaces, suppressing anionic polyiodide shuttling in zinc–iodine batteries. The resulting batteries retain 146 mAh g −1 capacity after over 60,000 cycles at 10 A g −1 . This work provides an environmentally friendly and scalable route to delaminated MXenes, integrating structural control with interfacial engineering, and expands their versatility in energy storage and beyond.
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产品关联
DOI
高影响因子
Nanoscale Advances
·
2023
·
IF 4.7
Yuchen Liu,Xing Chen,Jiazhi Sun,Nuo Xu,Qi Tang,Jie Ren,Cheng Chen,Weiwei Lei,Chao Zhang,Dan Liu
Antimicrobial resistance of existing antibacterial agents has become a pressing issue for human health and demands effective antimicrobials beyond conventional antibacterial mechanisms. Two-dimensional (2D) nanomaterials have attracted considerable interest for this purpose. However, obtaining a high yield of 2D nanomaterials with a designed morphology for effective antibacterial activity remains exceptionally challenging. In this study, an efficient one-step mechanical exfoliation (ECO-ME) method has been developed for rapidly preparing Ti3C2 MXenes with a concentration of up to 30 mg mL−1. This synthetic pathway involving mechanical force endows E-Ti3C2 MXene prepared by the ECO-ME method with numerous irregular sharp edges, resulting in a unique nanoknife effect that can successfully disrupt the bacterial cell wall, demonstrating better antibacterial activity than the MXenes prepared by conventional wet chemical etching methods. Overall, this study provides a simple and effective method for preparing MXenes on a large scale, and its antibacterial effects demonstrate great potential for E-Ti3C2 in environmental and biomedical applications.
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产品关联
DOI
PubMed
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2024
·
IF 18.5
Zonglin Liu,Xu Zhao,Fuhua Xue,Liangliang Xu,He Chen,Zhong Chen,Qian Yan,Jinhua Xiong,Haowen Zheng,Pengyang Li,Huanxin Lian,Yunxiang Chen,Qingyu Peng,Xiaodong He
MXenes, a burgeoning family of 2D materials with high conductivity and large specific surface area, are ideal electromagnetic absorbing materials. However, the ample polar functional groups lead to poor dispersion in the non-polar matrix, limiting its application in non-polar-polymer-based composites. With the help of the shear rheological properties of SiO 2 , the conflict is resolved here by directly dispersing MXene aqueous dispersion into the non-polar resin. Water is locked dynamically through SiO 2 nanoparticles among the MXene@SiO 2 nanosheets, suppressing MXene's self-restacking and aggregation in the resin matrix. Therefore, the fabrication of uniform MXene/non-polar polymer composites is achieved. Meanwhile, this method allows different nanoparticles (Fe 3 O 4 , etc.) to be evenly dispersed among the MXene nanosheets to further improve the composites' electromagnetic parameters. The as-prepared composites achieve remarkable absorbing performance with a low MXene concentration (≤5 wt.‰). The SMEP-h achieves the maximum reflection loss value of over 60 dB at 12 GHz (at the thickness of 2.15 mm), and the SMEP-F possesses a broad effective absorbing bandwidth of over 6.18 GHz (at the thickness of 1.75 mm). The shear-rheological-assisted MXene dispersion method in the non-polar matrix paves an avenue for the design of outstanding MXene-based electromagnetic absorbing composites.
研究领域:
材料科学
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电磁学
·
复合材料
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产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2023
·Vol. 33
·期 30
·2300589
·
IF 19
Chao Sun,Bing Zhao,Jing Mao,Ke-Hua Dai,Zhen-yu Wang,Lin-bo Tang,He-zhang Chen,Xia-hui Zhang,Jun-chao Zheng
LiCoO 2 plays a key role in energy storage devices due to its high energy density. And the volumetric energy density of LiCoO 2 cathode can be significantly improved by increasing the charging cut-off voltage to 4.6 V. However, the increase in resistance at the LiCoO 2 interface, and the damage to the LiCoO 2 from the outside to the inside by the HF generated that caused by the decomposition of the organic electrolyte and LiPF 6 under 4.6 V conditions are not conducive to structural stability during cycling. Here, it is shown that the decomposition of electrolyte and LiPF 6 is effectively mitigated by inhibiting the interfacial catalytic activity of LiCoO 2 using an atomically thin layer of MXenes as a interlayer. Density functional theory results suggest that the decomposition energy of LiPF 6 is 1.13 and 3.21 eV at the interface of LiCoO 2 and MXenes, respectively. Time of Flight Secondary Ion Mass Spectrometry results further indicate that the decomposition products of the organic electrolyte and LiPF 6 have a thinner thickness at the interface of MXenes (5 nm) than LiCoO 2 (10 nm). This study provides a new and universal strategy for stabilizing the cathode interface to support the development of high energy density lithium-ion batteries.
研究领域:
材料科学
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电化学
·
能源存储
✓ 已验证
DOI
高影响因子
CRITICAL REVIEWS IN ANALYTICAL CHEMISTRY
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2024
·
IF 4.2
Tahir Ali Sheikh,Muhammad Ismail,Muhammad Fazle Rabbee,Hira Khan,Ayesha Rafique,Zeerak Rasheed,Amna Siddique,Muhammad Zeeshan Rafiq,Zafar A. K. Khattak,Shehzada Muhammad Sajid Jillani,Umer Shahzad,Muhammad Nadeem Akhtar,Mohsin Saeed,Khalid A. Alzahrani,Jamal Uddin,Mohammed M. Rahman,Francis Verpoort
MXenes (Mn+1XnTx), a subgroup of 2-dimensional (2D) materials, specifically comprise transition metal carbides, nitrides, and carbonitrides. They exhibit exceptional electrocatalytic and photocatalytic properties, making them well-suited for the detection and removal of pollutants from aqueous environments. Because of their high surface area and remarkable properties, they are being utilized in various applications, including catalysis, sensing, and adsorption, to combat pollution and mitigate its adverse effects. Different characterization techniques like XRD, SEM, TEM, UV-Visible spectroscopy, and Raman spectroscopy have been used for the structural elucidation of 2D MXene. Current responses against applied potential were measured during the electrochemical sensing of the hazardous pollutants in an aqueous system using a variety of electroanalytical techniques, including differential pulse voltammetry, amperometry, square wave anodic stripping voltammetry, etc. In this review, a comprehensive discussion on structural patterns, synthesis, properties of MXene and their application for electrochemical detection of lethal pollutants like hydroquionone, phenol, catechol, mercury and lead, etc. are presented. This review will be helpful to critically understand the methods of synthesis and application of MXenes for the removal of environmental pollutants.
研究领域:
材料科学
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环境科学
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分析化学
✓ 已验证
DOI
PubMed
高影响因子
Materials
·
2024
·Vol. 17
·期 22
·5414
·
IF 3.1
Ting Peng,Ruiqing Wu,Bohai Wang,Tomasz Liskiewicz,Shengwei Shi
MXenes possess high metallic conductivity and excellent dispersion quality and pseudocapcitance. Their good hydrophilicity makes them particularly suitable as eco-friendly inks for printing applications. However, MXenes are prone to oxidization in aqueous dispersions, and it is very important to improve their stability. Here, the long-term storage of MXene aqueous dispersions was realized by the introduction of sodium L-ascorbate (NaAsc) as the antioxidant. The preserved MXenes exhibited very stable electrochemical properties. Even after 60-day storage, the supercapacitor with preserved MXenes as the electrode still demonstrated an excellent specific capacitance of 381.1 F/g at a scan rate of 5 mV/s and a good retention rate of 92.6% after 10,000 consecutive cyclic voltammetry measurements, which was nearly the same as that of fresh MXenes. The results indicate a facile and efficient method to realize the long-term storage of MXene aqueous dispersions for mass use in future energy storage.
研究领域:
材料科学
·
能源存储
·
化学工程
✓ 已验证
DOI
PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Muhammad Chhattal,Andreas Rosenkranz,Yu Kaihuan,Philipp G. Grützmacher,Zhenbin Gong,Junyan Zhang
Due to the long-standing use of MAX phase materials since the 1960s and the emergence of MXenes in 2011, both are celebrated for their extraordinary mechano-tribological properties, including layered structures, high mechanical strength , and thermal conductivity . Nevertheless, there remains a crucial research gap in comprehensively comparing their tribological performance under solid lubrication , underscoring the need for an in-depth investigation. To close this research gap, we deposited MAX phase and MXene coatings by spray-coating on stainless-steel substrates. Subsequently, we evaluated their tribological properties, deciphered the underlying mechanisms using linear-reciprocating tribometry and high-resolution material characterizations. Our results demonstrated that the MXene coatings surpass the MAX phase coating in friction reduction by 81.82 %. In terms of wear depth, MXene coating has shown a notably reduced depth compared to both the reference steel sample and the MAX phase coating. Advanced tribochemical analysis indicates that MXenes' superior tribological performance is endorsed by their ability to form a thick, patchy-like transferlayer on the counterbody, which results from their ability to shear and delaminate under acting contact stress. Our study offers a framework for future investigations into utilizing MXene-based materials in tribological applications.
研究领域:
材料科学
·
摩擦学
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产品关联
DOI
高影响因子
RSC Advances
·
2017
·Vol. 7
·期 40
·24698-24708
·
IF 3.108
Youbing Li,Xiaobing Zhou,Jing Wang,Qihuang Deng,Mian Li,Shiyu Du,Young-Hwan Han,Jaehyung Lee,Qing Huang
A novel family of Ti3C2Tx/ferrite composites with high reflection loss was developed using a facile in situ co-precipitation method. The as-synthesized Ti3C2Tx/ferrite composite with a 5 wt% Ti3C2Tx MXenes loading exhibited high reflection loss (−42.5 dB) at 13.5 GHz. The effective absorption bandwidth of the 5 wt% Ti3C2Tx/Ni0.5Zn0.5Fe2O4 composite reached ∼3 GHz (12–15 GHz) in the K-band. The incorporation of Ti3C2Tx MXenes improved the electromagnetic impedance of the Ti3C2Tx/Ni0.5Zn0.5Fe2O4 composite resulting from the enhanced electrical conductivity. The potential electromagnetic wave absorption mechanisms were revealed, which may contain magnetic loss, dielectric loss, conductivity loss, multiple reflections, and scattering. The technique is facile, fast, scalable, and favorable for the commercialization of this composite. This study provides a potential way to develop EM wave absorbing materials for a large family of MXenes/ferrite composites.
研究领域:
材料科学
·
电磁学
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）