ELECTROCHIMICA ACTA
·
2023
·
IF 6.6
Linsheng Huang,Ziyan Dong,Changhao Wu,Yue Ma,Limin Ruan,Wei Zeng,Siliang Wang,Yi Xiong,Chao Xu,Dong Liang
The wire electrical conduction is a traditional method to transfer carriers from external circuit into internal functional materials in electronic devices, yet these guest carriers suffer ineluctable dissipation on their traveling paths before contributing device performance. Hereof, a wireless electrostatic induction strategy is developed to activate native carriers just inside MXene-based electrochemical supercapacitive device for facilitating carrier utilization. Experimental and simulative results reveal that in the device domains permeated by atmospheric electric field, the native carriers are effectively excited not only in porous MXene material, but also in metallic foil substrate and ionic electrolyte, endowing a huge energy capacity of 541.6 F g − 1 , greatly larger than 258.5 F g − 1 implemented by wire conductive charge. Further, the inducing system is explored to detect the atmospheric electric field strength with the highest sensitivity of 14.42 m μA V − 1 and high linearity of 95.22% in ranging 0–1100 V m − 1 and is also utilized to sense contactless proximity stimulus with a high sensitivity of 7.01 μA m − 1 and high linearity of 97.9% in penetration depth ranging 0∼20 cm. These smart functions are also realized with prototype equipment for applicable exploration.
研究领域:
材料科学
·
电子工程
·
能源技术
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产品关联
DOI
高影响因子
Advanced Science
·
2023
·Vol. 10
·期 21
·2301599
·
IF 15.1
Haojie Jiang,Lei Cai,Fei Pan,Yuyang Shi,Jie Cheng,Yang Yang,Zhong Shi,Xiaoli Chai,Hongjing Wu,Wei Lu
Demand for lightweight and efficient electromagnetic wave (EW) absorbers continues to increase with technological advances in highly integrated electronics and military applications. Although MXene-based EW absorbers have been extensively developed, more efficient electromagnetic coupling and thinner thickness are still essential. Recently, ordered heterogeneous materials have emerged as a novel design concept to address the bottleneck faced by current material development. Herein, an ordered heterostructured engineering to assemble Ti 3 CNT x MXenes/Aramid nanofibers/FeCo@SiO 2 nanobundles (FS) aerogel (AMFS-O) is proposed, where the commonly disordered magnetic composition is transformed to ordered FS arrays that provide more powerful magnetic loss capacity. Experiments and simulations reveal that the anisotropy magnetic networks enhance the response to the magnetic field vector of EW, which effectively improves the impedance matching and makes the reflection loss (RL) peaks shift to lower frequencies, leading to the thinner matching thickness. Furthermore, the temperature stability and excellent compressibility of AMFS-O expand functionalized applications. The synthesized AMFS-O achieves full-wave absorption in X and Ku-band (8.2–18.0 GHz) at 3.0 mm with a RL min of −41 dB and a low density of 0.008 g cm −3 . These results suggest that ordered heterostructured engineering is an effective strategy for designing high-performance multifunctional EW absorbers.
研究领域:
材料科学
·
电磁学
·
纳米技术
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2023
·
IF 9.9
Kaicheng Zhang,Rongxin Lin,Ming Yan,Yilin Wu
Membrane-based technology with accurate-recognition and specific-transmission has been regarded as one of the most promising strategies in environmental protection and energy conservation. However, membrane technique still faces challenges of “trade-off effect” between high selectivity and permeation flux within organic-aqueous mixed matrix. Here, well-intergrown click-chemistry synergic MXene-functionalized flexible skeleton membranes has been prepared in this strategy, enabling size-exclusion&structure selectivity by uniform location array imprinting unit and transport performance towards specific medicinal molecules of artemisinin (Ars). The well-assembled ultrathin cascade-type MXene layer guarantees the narrow interlayer nanochannels and the flexible skeleton modified mesoporous SiO 2 nanoparticles provide active reaction platform for the construction of selective recognition space. The resulting membranes demonstrated outstanding selective separation performance with permeability factor that artesunate (Aru) /Ars and dihydro-artemisinin ( d -Ars) / Ars of 3.17 and 2.89 and permeation flux of 1173.25 L·m −2 ·h −1 ·bar −1 . Besides, combined with antibacterial durability, recycling performance, high separation performance in mobile phase stability of CMFMs, it is anticipated that this work hopefully opens a new avenue for efficient chiral separation to medicinal molecules, exhibiting broad potential for practical application.
研究领域:
环境科学
·
材料科学
·
药物化学
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产品关联
DOI
PubMed
高影响因子
2D Materials
·
2023
·Vol. 10
·期 2
·024006
·
IF 5.5
Haishan Xu,Han Zhang,Yifan Wang,Chen Tang,Tianyu Xiao,Zhi Xu,Hong Li,Fugui Xu,Yiyong Mai
Li-S batteries have received much attention due to their high energy density, low cost and environmental friendliness. However, the poor conductivity of sulfur and the 'shuttle effect' of polysulfides still impede their practical applications. In this study, thin layered MXene nanosheets sandwiched by conductive poly(m-phenylenediamine) with in-plane cylindrical mesochannels (mPmPD/MXene) are constructed as sulfur hosts for the cathode materials of Li–S batteries. The polar active sites on MXene and mesoporous conductive PmPD polymers synergistically alleviate the polysulfide shuttling through chemisorption and physical confinement; the high metallic conductivity of MXene and conductive PmPD ensure the transport of electrons and promote the redox kinetics; the in-plane cylindrical mesochannels on mPmPD/MXene provide hosting space for high sulfur loading (∼71 wt%) and facilitate smooth electrolyte transport in the internal space of the cathode. Profiting from these advantages, the Li–S battery based on the mPmPD/MXene cathode exhibits a capacity decay of 0.0593% after 800 cycles at 1 C (53% capacity retention). The optimized battery shows stable cycling performance even at high sulfur loading (6.8 mg cm−2) with 5.6 mAh cm−2 capacity remained after 60 cycles at 0.1 C. This study provides insights for the rational design of 2D heterostructures with in-plane mesochannels for high-performance Li-S batteries.
研究领域:
材料科学
·
能源存储
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DOI
高影响因子
ACS Applied Materials & Interfaces
·
2019
·
IF 8.456
Luyang Liang,Ruishu Yang,Gaojie Han,Yuezhan Feng,Biao Zhao,Rui Zhang,Yaming Wang,Chuntai Liu
Two-dimensional Ti3C2Tx MXene-based hybrids-anchored magnetic metal nanoparticles show a huge potential application as effective wave absorbers due to the synergistic electromagnetic (EM) loss effect. In this work, uniform and size-controllable nickel, cobalt, or nickel–cobalt alloy nanoparticles were in situ grown on the surface of MXene via a facile and moderate co-solvothermal method for the first time. As an example, a nickel nanoparticles-anchored MXene (Ni@MXene) hybrid was homodispersed into dielectric polyvinylidene fluoride to develop its EM wave-absorbing capacity to a great extent. As expected, the results showed strong reflection loss (RLmin = −52.6 dB at 8.4 GHz), broad effective absorption bandwidth (EAB = 3.7 GHz including 71% of X-band), low loading (10 wt % Ni@MXene), and thin thickness (3.0 mm). By adjusting the sample thickness, EAB can cover completely the whole X-band with a maximum of 6.1 GHz, showing a huge potential of Ni@MXene hybrid applying as aircraft stealth coating. The mechanism analyses revealed that the excellent impedance matching, magnetocoupling effect, conductance, magnetic loss, and multiple scatterings contribute to the splendid EM wave-absorbing performance of the Ni@MXene hybrid. Considering the excellent overall performance, the Ni@MXene hybrid was identified as a promising candidate for EM wave absorption.
研究领域:
材料科学
·
电磁学
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DOI
高影响因子
RSC Advances
·
2024
·Vol. 14
·期 47
·34746-34755
·
IF 3.9
Xiaoxia Luo,Xianliang Ren,Hongwei Wang
This work focuses on the application potential of novel MXene materials in the field of uranium-containing wastewater adsorption, particularly addressing gaps in existing research. Ultra-thin layered TiVCTx was selected as the core adsorbent to thoroughly investigate its adsorption performance of uranium(U(VI))-containing wastewater. By compounding with sodium alginate, we successfully prepared easily recoverable aerogel beads and evaluated their adsorption capacity for ultra-low concentrations of U(VI) in seawater. The findings of this study reveal that TiVCTx exhibits optimal adsorption capacity for U(VI) in a weakly acidic environment with a pH of 5.59, and its maximum adsorption capacity for U(VI) reaches up to 336 mg g−1, demonstrating superior performance when it comes to other MXene materials. Further research reveals that the adsorption mechanism involves the synergistic effect of electrostatic adsorption and reduction adsorption, exhibiting monolayer adsorption characteristics, and the adsorption process is a spontaneous endothermic reaction. Notably, in simulated complex seawater environments, even when the U(VI) concentration is as low as, for instance, 3.3 μg L−1, 50 mg of aerogel beads can still achieve an adsorption capacity of 3.89 mg g−1 for 60 L of seawater. These findings underscore the outstanding performance of TiVCTx as a novel MXene material in U(VI) adsorption and its broad potential for practical applications.
研究领域:
环境科学
·
材料科学
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DOI
PubMed
高影响因子
Advanced Science
·
2024
·
IF 14.3
Junce Wang,Jinfeng Chen,Ningning Liu,Jingjing Lei,Hong-Wen Gao,Fei Yu,Fanghui Pan,Jie Ma
Controlled synthesis and regulation of 2D nanomaterials with sufficient active sites are promising in electrochemical fluorine capture, but simultaneously achieving rapid rates and efficient activity of intercalation materials remains challengs. Herein, an integrated strategy of micro-regulation interlayer space and in situ modification of MXenes is proposed to enhance ion storage kinetics. The wedge-like microstructure of aluminum oxide/incomplete-Ti 3 C 2 T x MXene (Al 2 O 3 /i-Ti 3 C 2 T x ) is constructed by incomplete etching MAX and in situ derivation of A-layer element, in which the sub-nanoscale interlayer space is conducive to the small size ions intercalation, and the formation of “nanopump-like” effect boosted the ions diffusion. As evidenced by simulation calculations, Al 2 O 3 nanoparticles not only shorten the migration distance of electrons/hydrated ions in interlayers but also contribute a lower adsorption energy barrier, bringing excellent capture kinetics and stability. Benefiting from the interfacial conversion-intercalation pseudocapacitance, such electrode is endowed with a high defluoridation capacity (69.9 mg g −1 at 1.6V) and an outstanding instantaneous adsorption rate (9.51 mg g −1 min −1 ), and shows satisfactory stability in more than 200 cycles. The physicochemical coupling strategy opens a novel approach to optimizing the interlayer structure and in situ modification interface of MXene, which also provids a universal idea for efficient capture of varisized ions of intercalation materials.
研究领域:
材料科学
·
环境科学
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产品关联
DOI
PubMed
高影响因子
Small
·
2024
·
IF 13
Xinbei Zhu,Jingkai Liu,Liyue Zhang,Weiwei Zhao,Yiyu Cao,Xiaoqing Liu
Solar thermal collectors based on phase change materials (PCMs) are important to promote the civilian use of sustainable energy. However, simultaneously achieving high photothermal efficiency and rapid heat transfer of the PCM carrier typically involves a high proportion of functional materials, contradicting a satisfying energy storage density. In this work, a surface-engineered anisotropic MXene-based aerogel (LMXA) integrated with myristic acid (MA) to produce phase change composites (LMXA-MA) is reported, in which the laser-treated surface composed of the hierarchically-structured TiO 2 /carbon composites act as a light absorber to improve solar absorption (96.0%), while the vertical through-hole structure allows for fast thermal energy transportation from surface to the whole. As a result, LMXA-MA exhibits outstanding thermal energy storage (192.4 J·g −1 ) and high photothermal conversion efficiency (93.5%). Meanwhile, benefiting from the intrinsic low emissivity of MXene material, thermal radiation loss can be effectively suppressed by simply flipping LMXA-MA, enabling a long-term temperature control ability (605 s·g −1 ). The excellent heat storage property and switchable dual-mode also endow it with an infrared stealth function, which maintains camouflage for more than 240 s. This work provides a prospective solution for optimizing photothermal conversion efficiency and long-term thermal energy preservation from surface engineering and structural design.
研究领域:
材料科学
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能源工程
·
光学工程
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产品关联
DOI
PubMed
高影响因子
ACS Applied Nano Materials
·
2024
·
IF 5.3
Deqiong Xie,Kecan Dou,Jiale Huang,Wenqian Zhai,Jing Shi,Lei Zhuang,Weidong Zhu,Fumin Zhang
The development of efficient and robust metal nanoparticle catalysts for the aerobic oxidation of benzyl alcohol is crucial for advancing green chemistry. This study presents a class of ceria nanoparticle catalysts, designated as Ce-NC/CFMX-T, where “T” denotes the pyrolysis temperature. These catalysts are synthesized by pyrolyzing a mixture of Ce-MOF-801/CFMX and dicyandiamide at high temperatures, aimed at the liquid-phase aerobic oxidation of 4-methoxybenzyl alcohol to 4-methoxybenzaldehyde, using molecular oxygen as the oxidizing agent and avoiding harmful additives or bases. Among the synthesized catalysts, Ce-NC/CFMX-973 exhibited exceptional catalytic efficiency, achieving over 99.9% conversion of 4-methoxybenzyl alcohol and complete selectivity for 4-methoxybenzaldehyde. This performance was achieved under moderate conditions, using xylene as the solvent at 373 K over 8 h and an oxygen pressure of 1 atm. Kinetic analysis revealed that the activation energy for oxidizing 4-methoxybenzyl alcohol using Ce-NC/CFMX-973 was 68.5 ± 3.0 kJ/mol, which is lower than the values observed for Ce-C/CFMX-973, Ce-NC-973, and Ce-C-973. The remarkable catalytic performance of the Ce-NC/CFMX-973 catalyst is attributed to the synergistic effects between CeO2 nanoparticles and oxygen vacancies, along with the support’s balanced acidity and basicity properties.
研究领域:
催化化学
·
材料科学
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产品关联
DOI
高影响因子
IEEE SENSORS JOURNAL
·
2024
·
IF 4.3
Yixin Lu,Jun Sun,Wenqing Xu,Xinpeng Di,Wenchao Zhao,Long Zhang,Gebo Pan
Flexible, skin-like sensors are capable of converting various external stimuli into measurable electrical signals, crucial for advancing human-computer interaction and wearable health monitoring devices. Previous research on flexible smart sensing elements has primarily targeted single sensing functions, leaving the quest for integrated sensors capable of monitoring multiple signals largely unmet. In this paper, a signal-independent and interference-resistant pressure-temperature dual-mode sensor was fabricated by using a synergistic approach of structure and material design. A temperature-sensitive layer with a high temperature coefficient was prepared by introducing MOF-MXene into PU, and the dual-mode sensor was subsequently obtained by assembling it with S-MXene/PVDF composite as the encapsulating material and the pressure sensing layer. Fabric electrodes have small longitudinal dimensions as well as favorable compressibility and are well suited for the preparation of the miniature integrated sensor. Remarkably, the sensor demonstrates independent high-performance detection of both temperature and pressure signals. In terms of temperature sensing, the device has an average sensitivity of -3.6 %·°C
-1
and a resolution of 0.1 °C, which is better than most sensors based on thermally sensitive semiconductor materials. The sensor has excellent resistance to stress and pressure interference, which is promising for application in the detection of human physiological signals. While pressure sensing, the sensor has excellent overall performance, such as high sensitivity (1.02 kPa
-1
), skin-like rapid response time (40 ms), ultra-high cyclic stability (20,000 cycles). Benefiting from the smaller temperature coefficient of the dielectric composite material, the sensor is insensitive to temperature within the range of 20-50 °C.
研究领域:
材料科学
·
传感器技术
·
生物医学工程
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产品关联
DOI
高影响因子
MICROCHIMICA ACTA
·
2024
·Vol. 191
·期 9
·1-13
·
IF 5.3
Li Yilong,Hang Yuteng,Gopali Rusha,Xu Xinxin,Chen Guanhua,Guan Xiaorong,Bao Ning,Liu Yang
Screen-printed carbon electrodes (SPCE) functionalized with MXene-based three-dimensional nanomaterials are reported for rapid determination of creatinine. Ti 3 C 2 T X MXene with in situ reduced AuNPs (MXene@AuNP) were used as a coreactant accelerator for efficient immobilization of enzymes. Creatinine could be oxidized by chitosan-embedded creatinine amidohydrolase, creatine amidinohydrolase, or sarcosine oxidase to generate H 2 O 2 , which could be electrochemically detected enhanced by Prussian blue (PB). The enzyme@CS/PB/MXene@AuNP/SPCE detected creatinine within the range 0.03–4.0 mM, with a limit of detection of 0.01 mM, with an average recovery of 96.8–103.7%. This indicates that the proposed biosensor is capable of detecting creatinine in a short amount of time (4 min) within a ± 5% percentage error, in contrast with the standard clinical colorimetric method. With this approach, reproducible and stable electrochemical responses could be achieved for determination of creatinine in serum, urine, or saliva. These results demonstrated its potential for deployment in resource-limited settings for early diagnosis and tracking the progression of chronic kidney disease (CKD). Graphical Abstract
研究领域:
生物传感器
·
医学诊断
·
纳米材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Wenwei Huang,Jiayi Zhou,Yan Zhang,Yining Sun,Dongye Yang,Jianguo Tang,Mikhail Artemyev,Jun Li
Soft actuators are limited by single-mode driving technology, which poses challenges in dealing with complex and multidimensional movements. In this study, a multiresponsive soft actuator was fabricated by integrating a microwrinkling structure into an MXene-based film, enabling programmable motions. To achieve this, we introduced n-hexane into the film preparation process and utilized its rapid volatilization to accelerate the shrinkage difference between the film and the substrate. This resulted in anisotropic folding and excellent mechanical properties. Due to the remarkable moisture absorption and excellent toughness of MXene-based films, it exhibits rapid actuation in response to moisture gradients and light stimuli with large bending deformation, fast actuation speed, as well as excellent stability and durability. The anisotropic expansion and mechanical properties of the film enable it to have capability of three-dimensional shape-programmable configuration control. Furthermore, taking advantage of the exceptional photothermal properties of MXene-based films, we developed light-driven actuators that utilize the Marangoni effect for propulsion on the water surface, enabling programmable navigational control. Such a soft actuator has a broad applications prospect in the fields of biomimetic botanical models, terrestrial crawlers, and aquatic surface transport devices.
研究领域:
材料科学
·
仿生学
·
机器人学
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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）