ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Yue Yan,Wenrui Wu,Yang Yang,Tao Xu,Xianfu Li
Supercapacitors (SCs) have received widespread attention as excellent energy storage devices, and the design of multicomponent electrode materials and the construction of ingenious structures are the keys to enhancing the performance of SCs. In this paper, MoS2 nanorods were used as the carrier structure to induce the anchoring of CoAl-LDH nanosheets and grow on the surface of nickel foam (NF) in situ, thus obtaining a uniformly distributed MoS2 nanorod@CoAl-LDH nanosheet core–shell nanoarray material (MoS2@CoAl-LDH/NF). On the one hand, the nanorod-structured MoS2 as the core provides high conductivity and support, accelerates electron transfer, and avoids agglomeration of CoAl-LDH nanosheets. On the other hand, CoAl-LDH nanosheet arrays have abundant interfacially active sites, which accelerate the electrolyte penetration and enhance the electrochemical activity. The synergistic effect of the two components and the unique core–shell nanostructure give MoS2@CoAl-LDH/NF a high capacity (14,888.8 mF cm–2 at 2 mA cm–2) and long-term cycling performance (104.4% retention after 5000 charge/discharge cycles). The integrated MoS2@CoAl-LDH/NF//AC device boasts a voltage range spanning from 0 to 1.5 V, achieving a peak energy density of 0.19 mW h cm–2 at 1.5 mW cm–2. Impressively, it maintains a capacitance retention rate of 84.6% after enduring 10,000 cycles, demonstrating exceptional durability and stability.
研究领域:
材料科学
·
能源存储与转换
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CARBON
·
2025
·
IF 11.6
Haotian Jiang,Yanxiang Wang,Chengjuan Wang,Yingfan Li,Shichao Dai,Bohan Ding,Jinghe Guo,Yanru Yuan,Dongming Liu,Hui Li
To develop multi-functional microwave-absorbing materials, the FeCoNi/MoS 2 @carbon nanotubes (CNTs)/carbon nanofibers (CNFs) aerogels were synthesized by anchoring FeCoNi and MoS 2 onto an aerogel skeleton via directional freeze-drying and catalytic chemical vapor deposition (CCVD). Through CCVD, a diverse array of heterointerfaces was successfully constructed and defect-containing CNTs were introduced, thereby improving the impedance mismatch of carbon-based aerogels while achieving outstanding microwave absorption performance. The composite aerogel results in a minimum reflection loss of −84.18 dB at the thickness of 1.85 mm and an effective absorption bandwidth of 5.40 GHz at the thickness of 1.75 mm with a 13 % filler ratio. The excellent electromagnetic wave absorbing ability is mainly ascribed to the formation of three-dimensional conduction network, abundant heterogeneous interfaces, and the introduction of magnetic loss. Density functional theory calculations further elucidate that the enhanced dielectric properties arise from asymmetric charge distribution at heterogeneous interfaces (FeCoNi–C and MoS 2 –C), which amplifies interfacial polarization, while the increased density of states optimizes conduction loss. Additionally, the composite aerogels exhibit exceptional thermal insulation and infrared stealth performance. This work pioneers a novel pathway method for multifunctional aerogels using CCVD.
研究领域:
材料科学
·
纳米复合材料
·
功能材料
·
电磁学
·
热物理学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2021
·
IF 5.316
Peiyuan Mao,Yong Wang,Pandeng Xiao,Wen Zhang,Shun Rao,Zhi Wang
Herein, we demonstrate the reasonable design and preparation of yolk-heteroshell Sn@N-doped C@MoS 2 nanospheres as anode materials in sodium-ion battery. Through an effective multi-step strategy, Sn nanoparticles are encapsulated in N-doped C nanocage surrounded by ultra-thin MoS 2 nanosheets to form Sn@N-doped C@MoS 2 nanospheres. In this novel structure, Sn nanoparticles with high theoretical capacity improve the space utilization inside the heteroshell; the N-doped carbon nanocage as the skeleton not only inhibits the mutual accumulation of Sn and MoS 2 , but also improves conductivity; the outer MoS 2 ultra-thin sheets can consolidate C@MoS 2 heteroshell, provide numerous active sites and favor the fast diffusion of Na + /e - . Notably, the combination of carbon nanocage and MoS 2 sheets in the yolk-heteroshell structure can effectually buffer the volume expansion of Sn nanoyolks and reinforce C@MoS 2 heteroshell while reducing the carbon content. Therefore, the yolk-heteroshell structure plays a crucial role in enhanced reversible capacity and cyclic stability of Sn@N-doped C@MoS 2 nanospheres, which activates their sodium storage potential. The yolk-heteroshell Sn@N-doped C@MoS 2 nanospheres exhibit high reversible capacity of 488.4 mAh g −1 at 0.1 A g −1 after 300 cycles and long-cycle stability of 350.6 mAh g −1 at 0.5 A g −1 after 500 cycles. Moreover, their full cell delivers a stable reversible discharge capacity of about 80.1 mAh g −1 after 30 cycles at 0.5 C. This work provides a feasible yolk-heteroshell strategy for Sn-based composite nanomaterials .
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2017
·Vol. 28
·期 17
·12747-12754
·
IF 2.019
Huang Feng,Yan Aihua,Sui Yanwei,Wei Fuxiang,Qi Jiqiu,Meng Qingkun,He Yezeng
Ni 3 S 4 @MoS 2 nanosheets grown on the carbon fiber paper (Ni 3 S 4 @MoS 2 /CFP) were successfully prepared via a facile one-step hydrothermal technique. Serving as a supercapacitor electrode, the obtaining Ni 3 S 4 @MoS 2 /CFP exhibits a remarkable specific capacitance of 1296 F/g, high rate capability of 57.8%, and excellent cycling stability of 96.2% retention after 5000 cycles. The superior electrochemical properties of Ni 3 S 4 @MoS 2 /CFP nanocomposite is attributed to the synergistic effects of the layeredNi 3 S 4 , MoS 2 and the conductive CFP.
研究领域:
材料科学
·
电化学
·
纳米材料
·
能源存储
·
功能材料
·
复合材料
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Qing Zeng,Mengxi Han,Yifan Zhu,Qingyu Wu,Jianlin Zhou,Xinhua Hu,Bo You
Solar-control window film is an effective solution for reducing indoor cooling energy consumption. In this study, a modified 1T-phase molybdenum disulfide (M1T-MoS2)/phenolic resin composite film with low reflectivity, high imaging clarity and broadband optical blocking performance was developed. To enhance the dispersion of 1T-phase MoS2 nanosheets within the resin matrix, surface functionalization was achieved using trimethoxysilylpropanethiol (TOPE), exploiting the strong chemical affinity between thiol groups and sulfur vacancies. Furthermore, in situ curing of the phenolic resin facilitated dehydration condensation between silanol groups on the modified nanosheets and hydroxymethyl groups of the resin, resulting in the nanosheets being firmly anchored within the polymer network. The improved dispersion of the metallic-like M1T-MoS2 nanosheets allows the M1T-MoS2/phenolic resin film, with a thickness of only 40 μm and a filler content of 1.75 wt %, to achieve a light shading efficiency exceeding 85% for visible and near-infrared light below 1500 nm. Additionally, the film demonstrates high imaging clarity and a low visible-light reflectance of approximately 7%, contributing to the reduction of glare and light pollution caused by excessive reflection from window films. Experimental photothermal efficiency tests and finite element analysis demonstrated that the film’s high light-shading performance was primarily due to its strong optical absorption rather than reflection. This study presents an effective approach for fabricating broadband solar control window films and provides a strategy to enhance the stability of 1T-phase MoS2 in practical applications. These findings contribute to expanding the applications of 1T-MoS2 in composite materials and energy-related fields.
研究领域:
材料科学
·
纳米技术
·
光学
·
能源效率
·
聚合物复合材料
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF ENVIRONMENTAL ENGINEERING
·
2023
·Vol. 149
·期 9
·04023052
·
IF 2.2
Xincheng Ye,Jie Yao,Zekun Dong,Yan Zhang
The novel Fe-doped MoS2/granulated activated carbon (GAC) particle electrodes (FMG PEs) were controllably synthesized by a hydrothermal method and used in the three-dimensional (3D) electroactivation of peroxydisulfate (E-PDS-FMG) for carbamazepine (CBZ) degradation. The performance, mechanism, and influencing factors of CBZ degradation by the E-PDS-FMG system were systematically discussed. Electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV) analyses showed that the E-PDS-FMG system has an excellent conductivity and a high electron transfer rate and exhibited a superior electrocatalytic performance for CBZ degradation. A CBZ removal rate greater than 99% can be achieved within 25 min under the conditions of FMG dosage of 0.4 g L−1, PDS concentration of 2.0 mM, current density of 1.0 mA cm−2, and initial pH value of 5. Sulfate radicals (SO4·−) and hydroxyl radicals (OH) were recognized as the major active species through quenching experiments and electron paramagnetic resonance (EPR) measurement. In addition, Fe (IV) was also involved in the E-PDS-FMG system according to the transformation of methyl phenyl sulfoxide (PMSO) to methyl phenyl sulfone (PMSO2). Furthermore, the possible mechanism of the E-PDS-FMG system was proposed. FMG PEs were applied as the catalyst and particle electrodes for PDS activation, improving the yield of OH, SO4·−, and Fe (IV). The increase of FMG dosage and PDS concentration accelerated the degradation of CBZ, and the E-PDS-FMG system exhibited a high degradation ability on CBZ removal in a wide pH range. The results all indicate that the E-PDS-FMG system is a promising technology for organic pollutant removal from water due to its excellent electrocatalytic performance and remarkable stability.
研究领域:
环境科学
·
电化学
·
催化材料
✓ 已验证
DOI
高影响因子
JOURNAL OF CATALYSIS
·
2025
·
IF 6.5
Qi Chen,Xingxing Huang,Cheng Liu,Yueling Chen,Jionghua Wu,Jimmy C. Yu,Ling Wu
The attainment of rapid charge mobility and effective N 2 activation is of critical importance for photocatalytic nitrogen fixation but it has always been a challenge. Such challenge may be met by the construction of a Type II MoS 2 nanoparticles/ MIL-100(Fe) heterojunction photocatalyst. The new material possesses charge migration channels that facilitate the separation of photogenerated carriers. This charge redistribution during photocatalysis is confirmed by experimental results showing a decrease of charge density on the Fe species and an increase of that on Mo. Moreover, DFT calculations show that the adsorption of N 2 and H 2 O is more likely to occur on Fe sites and Mo sites, respectively. These findings clearly suggest a drastically improved spatial isolation of reduction and oxidation sites on the photocatalyst as compared to pristine MIL-100(Fe). The optimized MoS 2 /MIL-100(Fe) exhibits a NH 4 + yield rate of 1.29 μmol·h −1 as excellent utilization of photoinduced electron-hole pairs and effective adsorption and activation of N 2 become possible. This work offers an insight on the synergy of heterojunction engineering with coordinated activation for photocatalytic ammonia synthesis.
研究领域:
材料科学
·
催化
·
纳米技术
·
化学工程
·
理论化学
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2024
·
IF 8.1
Qi Chen,Cheng Liu,Rui Liu,Yidong Hou,Jinhong Bi,Jimmy C. Yu,Ling Wu
A series of 2D/2D MoS 2 /Bi 2 WO 6 S-scheme heterojunctions consisting of ultrathin MoS 2 nanosheets (MS, 1.6 nm) and ultrathin Bi 2 WO 6 nanosheets (BWO, 1.5 nm) were developed for photocatalytic degradation of ciprofloxacin. The samples with 5 % mass ratio of MS (5 %MS/BWO) exhibits the almost complete degradation of ciprofloxacin (≈100 %) under visible light. It is evidenced that the formation of S-scheme heterojunction with close interfacial interaction facilitates the photoinduced carrier separation and the generation of surface acid sites. The activation of ciprofloxacin molecules is realized through the coordinately interaction of C-N and C=O with the surface W sites. Moreover, the OVs in BWO side is a convenient pathway for activated of O 2 , embodying in the generation of •O 2 − and •OH under visible light over photocatalyst. Such an association of charge transfer mechanism with coordination activation shows the enhanced photocatalytic performance toward ciprofloxacin. This work provides a motivation which designs an S-scheme heterojunction photocatalyst with the ability to activate the specific group in molecules to comprehend the degradation of antibiotics.
研究领域:
材料科学
·
环境科学
·
化学
✓ 已验证
产品关联
DOI
高影响因子
Nanomaterials
·
2022
·Vol. 12
·期 6
·896
·
IF 5.719
Shiyu Sun,Jingying Zheng,Ruihao Sun,Dan Wang,Guanliang Sun,Xingshuang Zhang,Hongyu Gong,Yong Li,Meng Gao,Dongwei Li,Guanchen Xu,Xiu Liang
Monolayer 2H-MoS2has been widely noticed as a typical transition metal dichalcogenides (TMDC) for surface-enhanced Raman scattering (SERS). However, monolayer MoS2is limited to a narrow range of applications due to poor detection sensitivity caused by the combination of a lower density of states (DOS) near the Fermi energy level as well as a rich fluorescence background. Here, surfaced S and Mo atomic defects are fabricated on a monolayer MoS2with a perfect lattice. Defects exhibit metallic properties. The presence of defects enhances the interaction between MoS2and the detection molecule, and it increases the probability of photoinduced charge transfer (PICT), resulting in a significant improvement of Raman enhancement. Defect-containing monolayer MoS2enables the fluorescence signal of many dyes to be effectively burst, making the SERS spectrum clearer and making the limits of detection (LODs) below 10−8M. In conclusion, metallic defect-containing monolayer MoS2becomes a promising and versatile substrate capable of detecting a wide range of dye molecules due to its abundant DOS and effective PICT resonance. In addition, the synergistic effect of surface defects and of the MoS2main body presents a new perspective for plasma-free SERS based on the chemical mechanism (CM), which provides promising theoretical support for other TMDC studies.
研究领域:
材料科学
·
纳米技术
·
光学光谱学
·
表面化学
✓ 已验证
DOI
高影响因子
Discover Nano
·
2023
·Vol. 18
·期 1
·1-14
·
IF 0
Shao Runrun,Qiao Xiaofang,Cao Linlin,Man Jianliang,Guo Lingyun,Li Lanlan,Liu Wen,Li Lihong,Wang Bin,Guo Lixia,Ma Sufang,Zhang Boye,Wang Haojiang,Yan Lili
The development of nanoparticles capable of inducing reactive oxygen species (ROS) formation has become an important strategy for cancer therapy. Simultaneously, the preparation of multifunctional nanoparticles that respond to the tumor microenvironment is crucial for the diagnosis and treatment of tumors. In this study, we designed a Molybdenum disulfide (MoS 2 ) core coated with Manganese dioxide (MnO 2 ), which possessed a good photothermal effect and could produce Fenton-like Mn 2+ in response to highly expressed glutathione (GSH) in the tumor microenvironment, thereby generating a chemodynamic therapy (CDT). The nanoparticles were further modified with Methoxypoly(Ethylene Glycol) 2000 (mPEG-NH 2 ) to improve their biocompatibility, resulting in the formation of MoS 2 @MnO 2 -PEG. These nanoparticles were shown to possess significant Magnetic Resonance Imaging (MRI) and Computed Tomography (CT) imaging capabilities, making them useful in tumor diagnosis. In vitro and in vivo experiments demonstrated the antitumor ability of MoS 2 @MnO 2 -PEG, with a significant killing effect on tumor cells under combined treatment. These nanoparticles hold great potential for CDT/photothermal therapy (PTT) combined antitumor therapy and could be further explored in biomedical research.
研究领域:
生物医学工程
·
纳米技术
·
癌症治疗
·
医学成像
✓ 已验证
DOI
LANGMUIR
·
2025
·
IF 3.9
Li Xu,Pingyue Hu,Liwen Tan,Junchun Guo,Sheng Li,Xiaoli Xiong
Dopamine (DA) is a key neurotransmitter in the central nervous system, and abnormal concentrations are associated with a variety of diseases. In this study, a novel electrochemical sensor is constructed based on ultrathin P-doped MoS2/MoO2 nanosheets supported on bowl-shaped N-doped carbon hemispheres (N-BCH@P-MoS2/MoO2). The unique hierarchical structure combines the high specific surface area of N-BCH with the enhanced electrocatalytic activity of P-doped MoS2/MoO2, resulting in significant improvements in the performance for DA detection. The electronic structure of the catalyst is further modulated by the codoping of N and P, which increases the electrical conductivity and the number of active centers. The results show that the N-BCH@P-MoS2/MoO2 exhibits excellent sensitivity and selectivity for DA detection, capable of achieving a detection limit as low as 0.12 μM within a broad concentration range (3–100 μM) (S/N = 3). Furthermore, electrocatalysts have been employed in the detection of DA in human serum, indicating significant promise for clinical diagnosis.
研究领域:
电化学
·
材料科学
·
生物传感器
·
神经科学
·
分析化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
·
2021
·
IF 8.067
Yun Tian,Zhengyu Wei,Fan Li,Songjie Li,Lixiang Shao,Mengyuan He,Panfei Sun,Yuanyuan Li
Lithium-Sulfur (Li-S) batteries are very competitive in energy storage equipment due to their high theoretical capacity and low cost of raw materials. However, the serious polysulfide "shuttle effect", volume expansion effect and slow conversion reaction kinetics of Li−S batteries during the charge/discharge cycle process still need to be resolved urgently. Herein, we prepared a novel sulfur host of SnO 2 -decorated MoS 2 hollow microspheres (SnO 2 -MoS 2 HMSs). The unique hollow structure provides enough space to accommodate a large amount of sulfur and effectively adapts to its large volume expansion during charge and discharge process. On the other hand, the SnO 2 nanoparticles that attached to the surface of the MoS 2 nanosheets will accelerate the catalysis of MoS 2 and enhance the bonding strength with the polysulfide intermediates through the S−Sn−O chemical bond, which further inhibits the shuttle effect. The newly synthesized SnO 2 -MoS 2 HMSs cathode has achieved excellent electrochemical performance. The initial discharge specific capacity of 1326.4 mAh g −1 was obtained at 0.2 C, and after 100 cycles, the specific capacity of the SnO 2 -MoS 2 HMSs/S cathode only decreased slightly to 1183.8 mAh g −1 , its capacity retention rate reaching as high as 89.2%. We expect the newly synthesized hollow structured MoS 2 with SnO 2 decoration provides a new strategy for the construction of Li-S battery cathode materials.
研究领域:
材料科学
·
能源存储
·
电化学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）