JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2024
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IF 9.4
Meihong Fan,Lijia Liu,Yue Li,Fengyun Gu,Xingquan He,Hui Chen
The industrialization of hydrogen production technology through polymer electrolyte membrane water splitting faces challenges due to high iridium (Ir) loading on the anode catalyst layer. While rational design of oxygen evolution reaction (OER) electrocatalysts aimed at effective iridium utilization is promising, it remains a challenging task. Herein, we present exfoliated Ti 3 C 2 T x MXene as a highly conductive and corrosion-resistant support for acidic OER. We develop an alcohol reduction method to achieve uniform and dense loading of ultrafine Ir nanoparticles on the MXene surface. The IrO 2 /TiO x heterointerface is formed in situ on the Ir@Ti 3 C 2 T x MXene surface, acting as a catalytically active phase for OER during electrocatalysis. The electron interactions at the IrO 2 /TiO x heterointerface create electron-rich Ir sites, which reduce the adsorption properties of oxygen intermediates and enhance intrinsic OER activity. Consequently, the prepared Ir@Ti 3 C 2 T x exhibits a mass activity that is 7 times greater than that of the benchmark IrO 2 catalyst for OER in acidic media. In addition, the /Ti 3 C 2 T x MXene support can stabilize the Ir nanoparticles, so that the stability number of Ir@Ti 3 C 2 T x MXene is about 2.4 times higher than that of the IrO 2 catalyst.
研究领域:
材料科学
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电化学
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催化科学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF POWER SOURCES
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2024
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IF 8.1
Hua Tian,Zhiwei Guo,Wenjun Zhao,Lin Wang,Deqi Kong,Yanyan Wang,Lixin Zhang,Lingyu Li,Ran Sun,Ruohan Li,Jian Song
Hybrid layers composed of polyacrylic acid and Ti 3 C 2 T x MXene are coated on the surface of Zn foils via electrophoresis deposition processes , realizing the construction of an artificial protective coating with the pre-introduction of excess Zn 2+ towards suppressing Zn 2+ 2D diffusion of Zn deposition behavior . In this case, the abundant carboxyl groups of polyacrylic acid benefit to the fast transport of Zn 2+ in addition to the shield of anions and oxidants, restraining the corrosion and passivation of Zn metal anodes. Moreover, the appearance of Ti 3 C 2 T x MXene with two-dimensional arrangements strengthens the structure stability and improves the hydrophilicity of hybrid layers so as to restrict the dendrite growth of Zn metal anodes. Accordingly, polyacrylic acid/Ti 3 C 2 T x MXene hybrid layer coated Zn electrodes in symmetric cells achieve a lifespan of over 1000 h at a current density of 3 mA cm −2 and an areal capacity of 3 mAh cm −2 , superior to pristine Zn electrodes (107 h) and polyacrylic acid layer coated Zn electrodes (401 h). The full cell based on polyacrylic acid/Ti 3 C 2 T x MXene hybrid layer coated Zn anodes and Na 0.33 V 2 O 5 cathodes also exhibits a high capacity retention of 98.6 % after 1000 cycles at a current density of 5 A g −1 .
研究领域:
材料科学
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电化学
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产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2021
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IF 5.316
Yiyuan Shi,Sisi Li,Zhimiao Tian,Xiansen Yang,Yubing Dong,Yaofeng Zhu,Yaqin Fu
The construction of three-dimensional (3D) hierarchically porous nanostructures is an effective microstructural design strategy for the fabrication of lightweight electromagnetic wave (EMW) absorption materials . In this work, 3D hierarchically porous Ti 3 C 2 T x MXene@polyaniline (PANI) hybrids are prepared via a self-assembly process. The as-prepared hybrids possess excellent microwave absorption performance with the minimum reflection loss ( RL min ) of the optimal Ti 3 C 2 T x MXene@PANI hybrid reaching − 53.79 dB at 12.67 GHz with a thickness of 1.33 mm and a loading amount of 10 wt% in paraffin. The light weight and high-efficiency microwave absorption properties of the hybrids result from their 3D hierarchically porous structure and well-matched impedance characteristics, which provide multiple reflection channels and loss mechanisms for incident EMWs. This strategy offers a rational, simple and practical design approach for high-performance MXene-based EMW absorbers.
研究领域:
材料科学
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电磁学
✓ 已验证
DOI
高影响因子
Progress in Natural Science-Materials International
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2020
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IF 4
Guangzhen Cui,Linbo Wang,Ling Li,Wei Xie,Guangxin Gu
MXene, a novel two-dimensional (2D) multi-layer material, has drawn unusual interest as the microwave absorbers for electromagnetic energy attenuation. Synthetic MXene-based heterostructure composites via optimizing structure is an effective strategy to endow MXene materials with high-performance microwave absorption. This study reports the fabrication and investigation of the microwave absorption performance of a sandwich-like CuS/Ti 3 C 2 T x MXene composites prepared by loading CuS nanoparticles onto 2D Ti 3 C 2 T x via a solvothermal method. The morphology and electromagnetic absorption properties of this composite were investigated and the results demonstrated that the CuS/Ti 3 C 2 T x composite with a heterolayered architecture displayed superior microwave absorption ability. With a 35 wt% filler loading in the paraffin matrix, the minimum reflection loss value reached −45.3 dB at a frequency of 7.3 GHz and the effective absorption bandwidth achieved a value as high as 5.2 GHz with a thickness of 2.0 mm. The enhanced microwave absorption performances can be ascribed to the cooperation of the conductive network, interface polarization, dipole polarization, multiple reflection and scattering. Therefore, the synthesized CuS/Ti 3 C 2 T x MXene composites offer an efficient foundation for the design and utilization of other lightweight microwave absorbers.
研究领域:
材料科学
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电磁学
✓ 已验证
DOI
高影响因子
ACS Nano
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2025
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IF 16
Zhiyi Wu,Jiahui Shen,Zimu Li,Shuang Liu,Yuxuan Zhou,Kai Feng,Binbin Zhang,Shiqi Zhao,Di Xue,Jiari He,Kewei Yu,Jinpan Zhang,Graham Dawson,Qingfeng Zhang,Lizhen Huang,Chaoran Li,Xingda An,Lifeng Chi,Xiaohong Zhang,Le He
The ever-growing interest in MXenes has been driven by their distinct electrical, thermal, mechanical, and optical properties. In this context, further revealing their physicochemical attributes remains the key frontier of MXene materials. Herein, we report the anisotropic localized surface plasmon resonance (LSPR) features in Ti3C2Tx MXene as well as site-selective photocatalysis enabled by the photophysical anisotropy. Both experimental and theoretical studies provide direct evidence of the occurrence of transverse and longitudinal dipolar plasmon resonance modes, respectively, driven by in-plane and out-of-plane vibrations of the two-dimensional (2D) MXene nanoflakes. Wavelength-controlled excitation of the two LSPR modes is demonstrated to activate either the on-edge or the in-plane active sites for plasmonic charge carrier-induced site-selective catalysis. Our findings uncover the presence as well as the mechanism of the anisotropic plasmon resonance in nonmetallic 2D nanomaterials and provide intriguing design principles for next-generation plasmonic nanocatalysts.
研究领域:
材料科学
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物理化学
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纳米技术
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产品关联
DOI
PubMed
高影响因子
RARE METALS
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2024
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IF 9.6
Wang Wei-Wei,Huang Rui,Tao Yu,He Peng,Tuo Su-Xing,Bian Yu-Jian,Hu Rui-Ting,Yan Jun,Liang Yan-Jie,Zhang Wen-Chao
The electrochemical utilization of Zn anodes in aqueous batteries is hampered by the intricate and interconnected issues of Zn dendrite growth, H 2 evolution and Zn corrosion reactions. In this study, a multifunctional protective layer comprising MXene and graphitic carbon nitride (g-C 3 N 4 ) was constructed using a self-assembly strategy. The MXene/g-C 3 N 4 protective layer exhibited robust zincophilic characteristics, which facilitated a uniform distribution of the electric field and ensured a sufficient influx of Zn 2+ . This reduces the Zn 2+ nucleation barrier and prevents dendrite growth. In addition, the hydrophobic nature of the protective layer, coupled with its negative charge, can repel SO 4 2− and select water molecules from the electrolyte, which aids in mitigating corrosion and H 2 evolution. The symmetric Zn cell coated with the MXene/g-C 3 N 4 protective layer showed remarkable stability, achieving over 2000 h of reversible cycling at 1 mA·cm −2 . Furthermore, the MXene/g-C 3 N 4 -coated Zn anode paired with a sodium-doped V 2 O 5 cathode (NVO) exhibited enhanced cycling capability over 1500 cycles. Graphical Abstract
研究领域:
材料科学
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电化学
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能源存储
✓ 已验证
产品关联
DOI
高影响因子
MATERIALS RESEARCH BULLETIN
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2024
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IF 5.3
Zhiwen Shi,Lijuan Qiao,Zhi Jia,Peng Zhang,Bingxin Liu,Li Gao
It is of great significance to detect methanol in human exhaled breath since it may cause neurological disorders. In this study, N-doped Ti 3 C 2 T x MXene was synthesized by annealing and nitrogen doping in clay-like Ti 3 C 2 T x MXene. Then, TiO 2 nanospheres was generated in situ on the surface of N-doped Ti 3 C 2 T x MXene to provide adsorption and reaction sites for methanol. Based on the synergistic effects of electronic properties and gas adsorption, the N-Ti 3 C 2 T x MXene/TiO 2 exhibits high responsiveness and excellent selectivity to methanol at room temperature. Moreover, the detection limit is 0.1194 ppm. In addition, the adsorption and oxidation process of methanol on the N-Ti 3 C 2 T x MXene/TiO 2 was explored by in situ infrared spectra testing to reveal that the oxygen vacancy on the surface of N-Ti 3 C 2 T x MXene/TiO 2 plays an important role in the selective detection of methanol. This experiment provides a feasible solution for the detection of methanol gas in exhaled breath at room temperature.
研究领域:
材料科学
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医学诊断
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产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2025
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IF 6.3
Chunyan Zhang,Yu Liu,Yi Zhao,Yining Qu,Li Wang,Han Zhang,Daomei Chen,Jiaqiang Wang
Most photocatalysts reported to date require sacrificial agents to achieve high-efficiency photocatalytic production of H 2 O 2 . Developing photocatalysts for H 2 O 2 production without sacrificial agents remains a significant challenge. In this study, we proposed an interfacial Schottky junction consisting of InP quantum dots (QDs) and Ti 3 C 2 T x nanosheets for photocatalytic production of H 2 O 2 without relying on any sacrificial agents. The InP/Ti 3 C 2 T x photocatalyst demonstrated high efficiency in generating H 2 O 2 , even when tested in wastewater and tap water. The photocatalytic rate of 5InP/Ti 3 C 2 T x reached 21.31 mmol g⁻¹ h⁻¹, which is 112 times greater than InP QDs. The 5InP/Ti 3 C 2 T x catalyst achieved a degradation performance of 99.9% for acid orange 7. The photocatalytic production of H 2 O 2 was effectively utilized in actual wastewater to decrease chemical oxygen demand (COD) levels. The COD concentration was decreased to 67 mg L −1 , well below the permissible threshold set by China's Ministry of Ecology and Environment for coking chemical industry emissions. As far as we know, no prior study has documented the application of InP in the photocatalytic production of H 2 O 2 within actual wastewater. This research explores the applications and impacts of InP compounds in the field of photocatalysis. This work introduces a novel approach for sacrificial agent-free photocatalytic H 2 O 2 production, offering a significant advancement in the field.
研究领域:
材料科学
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环境科学
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化学工程
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产品关联
DOI
高影响因子
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
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2024
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IF 5.9
Tiantian Lv,Jiarong Zhang,Long Yu,Ya’nan Zhao,Tianran Zhao,Yi’na Yang,Chunna Yu,Chang Zhao,Guangjian Xing
The contamination of wastewater by organic pollutants significantly impacts human health and the environment due to their carcinogenic nature and various adverse effects. To address this issue, this study offers a high-efficiency and low-cost biomass-based carbon aerogel adsorbent, which was prepared through the hydrothermal carbonization of loofah, followed by Ti 3 C 2 T X MXene impregnation. The aerogel features a porous three-dimensional network structure and a substantial specific surface area, facilitating broad-spectrum adsorption capabilities for various dyes and drugs. The aerogel achieved impressive adsorption capacities of 175.29 and 75.73 mg/g for cationic methylene blue and Rhodamine B dyes, and 106.33 and 93.29 mg/g for anionic methyl orange and Congo red dyes, as well as 86.25 mg/g for tetracycline hydrochloride, surpassing other reported biomass-based aerogels. Furthermore, it demonstrated effective decolorization ability for wastewater containing mixed dyes. Notably, it exhibited excellent recycling and regeneration properties, maintaining a high removal rate after multiple cycles of adsorption–desorption. The adsorption process of dye/drug by the aerogel followed Langmuir’s monomolecular layer adsorption model, exhibiting spontaneous, endothermic, and disorder-increasing behavior in alignment with the pseudo-second-order kinetic model. This study presents an efficient biomass-based aerogel for the removal of organic pollutants from wastewater.
研究领域:
环境科学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry A
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2024
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IF 10.7
Ruyue Su,Jingyi Chen,Xueqin Zhang,Wenqing Wang,Rujie He,Ying Li
Terahertz (THz) electromagnetic interference (EMI) shielding materials with superior performance are urgently needed with the development of THz electronic devices. Herein, a photocured Ti3C2Tx MXene/SiOC ceramic (MSiOC) composite with a sandwich-like structure was prepared using a photosensitive resin as a precursor. In addition, the EMI shielding properties of the MSiOC composite with a low mass loading of the MXene were greatly improved. The influence of the content of Ti3C2Tx MXenes on the EMI shielding properties of the MSiOC composite was studied, and its EMI shielding mechanism was further elucidated. The resultant MSiOC composite exhibited an average shielding effectiveness (SET) of 24.5 dB in the frequency range of 0.2–1.6 THz at a MXene mass loading of only 0.3 wt%, which was remarkably improved by 53% compared to pure SiOC. In addition, the MSiOC composite with a broad high-absorptivity frequency band showed an absorption-dominated THz EMI shielding mechanism. This result proved that the synergistic effect of the MXene and SiOC was responsible for the high attenuation capability of MSiOC for THz waves. Finally, MSiOC with customized structures was easily fabricated via vat photopolymerization 3D printing, followed by a pyrolysis process. The smallest feature size of these structures was about 140 μm. Moreover, the flexible photocured green part could be secondary molded, which improved the structural controllability of the composite. Our work provides insights into the rational design of MXene-based composites for new-generation THz EMI shielding materials.
研究领域:
材料科学
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电磁学
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产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
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IF 5.4
Miao Yuan,Saidan Wang,Hongxia Du,Yating Sui,Xiangjing Zhang,Song Zhao,Qiushi Li,Shaojie Liu,Xuteng Xing,Erjun Tang
Two-dimensional Ti 3 C 2 T x MXene, with a large specific surface area, high chemical stability and excellent barrier properties, has become a promising of anti-corrosion filler in organic coatings. However, the poor dispersion and compatibility in organic coatings restrict its efficient application. To this end, L-histidine (L-His) corrosion inhibitor was grafted on the 3-aminopropyl triethoxysilane (APTES) functionalized Ti 3 C 2 T x MXene surface, under the electrostatic attraction between the carboxylate and protonated aminopropyl groups. The obtained APTES-Ti 3 C 2 T x MXene@L-His cannot only accelerate the dispersion of Ti 3 C 2 T x MXene filler, but also greatly promote the anti-corrosion property and service lifetime of coatings through combining the physical shielding effect of MXene laminate structure with active anti-corrosion function of L-His corrosion inhibitor. Results show that amino-functionalized Ti 3 C 2 T x MXene can maintain homogeneous in epoxy resin for 300 h, enhancing its dispersion in epoxy coating. Moreover, APTES-Ti 3 C 2 T x MXene@L-His composite can achieve the continuous release of L-His for 3000 min, and additional acid-base dual response property, the releasing rate of L-His is significantly accelerated in acidic or alkaline solutions. The total loading amount of L-His in APTES-Ti 3 C 2 T x MXene@L-His composite is about 3 %. Furthermore, the practical composite coating containing APTES-Ti 3 C 2 T x MXene@L-His also exhibits the excellent anti-corrosion and certain self-healing properties, such as its |Z 0.01 Hz| value remains above 10 10 Ω·cm 2 during the 40 d immersing in 3.5 NaCl solution, which is 3 orders of magnitude higher than that of pure epoxy coating. This work extends the great significance for Ti 3 C 2 T x MXene based composite coatings application of in the field of anti-corrosion.
研究领域:
材料科学
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腐蚀与防护
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有机涂层改性
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2024
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IF 8.1
Lu Luo,Qiuyan Kong,Qianqian Zhang,Jing Zhang,Mizi Fan,Weigang Zhao
Layered double hydroxides (LDH) and two-dimensional metal carbides (Ti 3 C 2 T x ) garner significant attention in recent years. LDH/Ti 3 C 2 T x nanohybrids combine the unique characteristics of individual component, making them a promising option for high-power energy storage applications. Here, we present a composite electrode constructed by synergistic coupling of Ti 3 C 2 T x and ternary hydrotalcite (NiCoMn-LDH). Strong interfacial interactions between the NiCoMn-LDH array and Ti 3 C 2 T x nanoflakes, along with effective electron coupling, contribute to enhanced structural stability, conductivity, and electrolyte accessibility, thereby significantly promoting the kinetics of redox reactions . The intriguing “lace-like” structure fully utilizes the high activity of NiCoMn-LDH and the excellent conductivity of Ti 3 C 2 T x , allowing LDH/Ti 3 C 2 T x to exhibit an impressive output capacitance of 1102.9 F g −1 at 1 A g −1 , coupled with notable rate capability (66.87 % at 20 A g −1 ). The constructed LDH/Ti 3 C 2 T x //AC hybrid supercapacitor (HSC) achieves a remarkable energy density of 47.3 Wh kg −1 at 800 W kg −1 . Following 5000 cycles, the specific capacity of HSC decreases by merely 8.3 %, while achieving a Coulombic efficiency of 99 %, showcasing remarkable durability and reversible reaction characteristics. This study provides a streamlined and effective methodology for crafting LDH/Ti 3 C 2 T x nanohybrids, showcasing robust coupled interfaces and exceptional electrochemical energy storage application.
研究领域:
材料科学
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能源存储与转换
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）