JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2020
·
IF 7.489
Wenya Xu,Wen Wang,Simou Chen,Rui Zhang,Yuxin Wang,Qi Zhang,Lihui Yuwen,Wen Jing Yang,Lianhui Wang
The fabrication of flexible electronic sensors with self-healing capability is of great importance for the applications in wearable devices and skin-like electronics. Herein, a molybdenum disulfide (MoS 2 ) nanosheets-based hydrogel (Gel-PEG-MoS 2 , GPM hydrogel), with near infrared (NIR) light-induced self-healing property, was first reported as a flexible sensor. Only a small amount of MoS 2 nanosheets (0.04 wt‰) could impart the hydrogel with fast self-healing property under NIR irradiation in 90 s. The healing efficiencies increased with the increasing of MoS 2 loadings. Moreover, the GPM hydrogel exhibited both contact and noncontact sensing properties based on its deformation-dependent and light-sensitive conductivity, showing potential application as mechanical sensor and light-activated switches. By employing the versatile MoS 2 nanosheets, the hydrogel exhibited both fast self-healing ability and mechanical/light sensing capability. Therefore, the MoS 2 -based hydrogel provides a two-pronged approach for construction of self-healing flexible electronics.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2020
·
IF 7.489
Xingliang Chen,Tao Shi,Guanglei Wu,Yun Lu
The MoS 2 @polypyrrole@Fe 3 O 4 composite was skillfully synthesized via a novel one pot method. No any separation step during the synthesis process, and the Fe 2+ was successively utilized to prepare the Ppy and Fe 3 O 4 , which can achieve a high utilization of raw materials. The characterization about microstructure, crystal form, elemental composition and surface functional groups verify the structure of MoS 2 @polypyrrole@Fe 3 O 4 . Its hysteresis loop indicates that the composite performs typical soft magnetism behavior, with a magnetic saturation value of 20.3 emu.g −1 , which is helpful to improve the magnetic loss for EM wave absorbing. The reflection loss curve suggested that the composite exhibits superior EM wave absorption performance, with a minimum reflection loss value of –32 dB at the specimen thickness of just 2.0 mm due to the fair electromagnetic matching, interface polarization and interface relaxation. In addition, the one pot method used in this work can promisingly be applied to prepare other similar composites such as carbon fiber@polypyrrole@Fe 3 O 4 , graphene@polypyrrole@Fe 3 O 4 .
✓ 已验证
产品关联
DOI
PubMed
高影响因子
BIOSENSORS & BIOELECTRONICS
·
2020
·
IF 10.257
Shuo Chen,Yang Sun,Yaping Xia,Ke Lv,Baoyuan Man,Cheng Yang
Field effect transistor (FET) biosensors based on low-dimensional materials have the advantages of small in size, simple structure, fast response and high sensitivity. In this work, a field-effect transistor biosensor based on molybdenum disulfide/graphene (MoS 2 /graphene) hybrid nanostructure was proposed and fabricated for DNA hybridization detection. The biosensor achieved an effective response to DNA concentrations in a broad range from 10 aM to 100 pM and a limit of detection (LOD) of 10 aM was obtained, which was one or more orders of magnitude lower than the reported result. The sensing mechanisms (donor and gating effects) of the FET sensor were discussed. A larger voltage shift of the charge neutral point was obtained due to a strengthened donor effect and a weakened gating effect caused by the introduction of MoS 2 layers. Such FET sensor shows high specificity for different matching degrees of complementary DNA, indicating the potential use of such a sensor in disease diagnosis.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2019
·Vol. 136
·期 39
·47991
·
IF 2.188
Dekang Cheng,Huan Wang,Bin Liu,Shan Wang,Yang Li,Yushuang Xia,Chuanxi Xiong
Flexible dielectric materials with high electric energy density and high-temperature resistant characteristic are of great importance for modern electronics and electrical systems. Herein, two-dimensional molybdenum disulfide (MoS 2 ) nanosheets were efficiently produced via liquid-phase exfoliation and then incorporated into polyimide (PI) to prepare MoS 2 /PI dielectric nanocomposites. Compared to the pristine PI, MoS 2 /PI nanocomposite films exhibited much larger dielectric permittivity while their dielectric losses still maintained relatively low levels. On the other hand, the Weibull breakdown strength of these nanocomposite films initially increased and then decreased with the increase in the MoS 2 content and gave rise to a maximum value of 395 MV m −1 at 1 vol % loading. Combination of the improved dielectric permittivity and breakdown strength makes the MoS 2 /PI nanocomposite film with 1 vol % MoS 2 possess an elevated energy density of about 3.35 J cm −3 . Moreover, good tensile and thermal properties of the nanocomposite films hold great promise for their applications in high-temperature and harsh conditions. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136 , 47991.
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2018
·
IF 4.439
Yang Pu,Shuang Zhu,Pohui Wang,Yuqin Zhou,Pan Yang,Sensen Xuan,Yaping Zhang,Hongping Zhang
A novel branched sulfonated polyimide/molybdenum disulfide nanosheets (bSPI/MoS 2 -ns) composite membrane was fabricated for vanadium redox flow battery (VRFB) application. Scanning probe microscope (SPM) and field emission-scanning electron microscope (FE-SEM) images verify the successful exfoliation of monolayer and a few layers of MoS 2 nanosheets. X-ray diffraction (XRD), attenuated total reflection-fourier transform infrared spectrometer (ATR-FTIR) and FE-SEM results demonstrate that bSPI, bSPI/MoS 2 -ns and bSPI/MoS 2 nanopowders (bSPI/MoS 2 -np) membranes are successfully prepared. Both thermogravimetric analysis/differential thermogravimetry (TGA/DTG) and ex-situ chemical stability testing results confirm bSPI/MoS 2 -ns membrane has improved thermal and chemical stabilities in contrast with pristine bSPI membrane. The bSPI/MoS 2 -ns membrane owns high proton conductivity (5.04 × 10 −2 S cm −1 ) and extremely low vanadium ion permeability (0.65 × 10 −7 cm 2 min −1 ), leading to its highest proton selectivity (7.75 × 10 5 S min cm −3 ) among all the membranes tested. Besides, during 500 times cycle charge–discharge test, the coulombic efficiency, energy efficiency and discharge capacity retention of VRFB using bSPI/MoS 2 -ns membrane are higher than or comparable to those of VRFB using Nafion 117 membrane. And the surfacial morphological integrity of bSPI/MoS 2 -ns membrane maintains better than reported pristine bSPI membrane after long-time VRFB usage. Above results indicate that the as-prepared bSPI/MoS 2 -ns membrane has great potential for VRFB application.
✓ 已验证
产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2018
·
IF 6.14
Shanshan Tong,Shenghua Ma,Yingchun Su,Qingchuan Li,Xuejing Wang,Xiaojun Han
The synergistic effect of non-noble-metal, low-cost, and high-performance hybrid electrocatalysts was often used for hydrogen evolution reaction (HER). Herein, the molybdenum disulfide nanoflakes were in situ grown on carbon microtube derived from natural tubular willow catkins as templates to construct the three-dimensional catkins/MoS2 hybrids. Catkins/MoS2 hybrids exhibited excellent HER activity in acidic conditions with a remarkable small onset overpotential of 50 mV, a Tafel slope of 62 mV decade–1, a comparatively small overpotential of 136 mV at 10 mA cm–2, and a Faraday yield of ∼100%. The as-synthesized catalysts also presented impressive durability and long-term stability. The superior electrocatalytic activity of catkins/MoS2 hybrids resulted from the unique hybrid structure of the catkins microtube and MoS2 nanoflakes providing abundant catalytically active sites and the annealed-catkins providing the good conductive support. The hybrids may find potential in practical hydrogen generation.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2019
·
IF 6.361
Yang Liu,Chao-Fan Li,Xiao-Yun Li,Wen-Bei Yu,Wen-Da Dong,Heng Zhao,Zhi-Yi Hu,Zhao Deng,Chao Wang,Si-Jia Wu,Hao Chen,Jing Liu,Zhao Wang,Li-Hua Chen,Yu Li,Bao-Lian Su
Photocatalytic hydrogen (H 2 ) production based on semiconductors is important to utilize solar light for clean energy and environment. Herein, we report a visible light responsive heterostructure, designed and constructed by molybdenum disulfide quantum dots (MoS 2 -QDs) in-situ seeds-directing growth and self-assemble of zinc indium sulfide (ZnIn 2 S 4 ) nanosheet to ensure their full contact through a simple one-step solvothermal method for highly improved visible light H 2 production. The MoS 2 -QDs in-situ seeds-directing ZnIn 2 S 4 heterostructure not only builds heterojunctions between MoS 2 and ZnIn 2 S 4 to spatially separate the photogenerated electrons and holes, but also serves as the active sites trapping photogenerated electrons to facilitate H 2 evolution. As a result, MoS 2 -QDs/ZnIn 2 S 4 exhibits high photocatalytic activity for H 2 production, and the optimized 2 wt% MoS 2 -QDs/ZnIn 2 S 4 (2MoS 2 -QDs/ZnIn 2 S 4 ) heterostructure exhibits the highest H 2 evolution rate of 7152 umol·h −1 ·g −1 under visible light, ∼9 times of pure ZnIn 2 S 4 . Our strategy here could shed some lights on developing noble-metal free heterostructures for highly efficient photocatalytic H 2 production.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SOLAR ENERGY
·
2017
·
IF 4.018
Kang Zhang,Jixin Yao,Qun Yang,Xueqin Zuo,Huaibao Tang,Feng Du,Guang Li,Wenqi Wang
A novel cotton shells-like composite of uniform MoS 2 with the carbon coated is prepared by a simple and efficient route. This particular MoS 2 @C hybrid is beneficial for a dye-sensitized solar cell (DSSC) as an inexpensive but high efficient platinum-free counter electrode. Meanwhile, the synergistic effects of catalytically active MoS 2 flower-morphology and conductive carbon supports are conducive to improve charge transfer resistance, electrocatalytic activity and fast reaction kinetics of the reduction of triiodide. The DSSC assembled with this original MoS 2 @C counter electrode (CE) indicates superior photoelectric conversion efficiency (6.93%), which exceeds that of the DSSC with a Pt counter electrode (6.68%).
✓ 已验证
产品关联
DOI
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2017
·
IF 2.843
Wei Cai,Jing Zhan,Xiaming Feng,Bihe Yuan,Jiajia Liu,Weizhao Hu,Yuan Hu
A simple method is presented here of organically modified molybdenum disulfide (MoS2) hindering the restack process of MoS2 nanosheets and enhancing interface interactions with a polymer matrix. The obtained f-MoS2 was introduced into a thermoplastic polyurethane (TPU) matrix to enhence its properties. Incorporated f-MoS2 nanosheets resulted in a dramatic suppression of fire hazards of TPU in terms of reduced peak heat-release rate (decreased by 45.4%), low gas degradation yield, and formation of a compact and robust char layer. After adding 2.0 wt % f-MoS2, the tensile strength of TPU increased by 40.9%. These significant reinforcements can be attributed to the tripartite cooperative mechanism of the strong interface interaction between f-MoS2 and the TPU matrix, the barrier effect of layered materials, and the catalyst action of MoS2. The facile approach can provide a novel strategy to modify MoS2 nanosheets and extend its practical application in the field of polymer composites.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2016
·
IF 2.822
Tao Yang,Renzhong Yu,Huaiyin Chen,Ruirui Yang,Shiying Wang,Xiliang Luo,Kui Jiao
Recently, molybdenum disulfide-based nanocomposites have been widely used in electrochemical sensing area. In this paper, molybdenum disulfide-poly( m -aminobenzenesulfonic acid) (MoS 2 -PABSA) nanocomposite was prepared through a simple electropolymerization procedure for TNT detection. The pre-obtained thin-layered MoS 2 nanosheet was adopted as the scaffold in the electropolymerization process and the m -aminobenzenesulfonic acid monomer was effectively electrodeposited on it via cyclic voltammetry . The morphology and electrochemical behaviors of MoS 2 -PABSA nanocomposite were investigated by scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray diffraction and some electrochemical methods. The obtained nanocomposite possesses excellent electrochemical detecting performance towards aromatic ring compounds, such as 2,4,6-trinitrotoluene, TNT, which have strong π-π interaction with the MoS 2 -PABSA sensing platform. The detailed electrochemical characterization of MoS 2 -PABSA showed the influence of electropolymerization cycles and pH values on detection of TNT. Under the optimum condition, highly sensitive detection for TNT was realized with the limit of detection of 0.043 ppb (0.187 nmol L − 1 ) and a linear range of 0.1–200 ppb. This research proves that the MoS 2 -PABSA was a worthy electrochemical sensing platform for further simple and sensitive detection of some other aromatic ring compounds.
✓ 已验证
产品关联
DOI
高影响因子
RSC Advances
·
2016
·Vol. 6
·期 79
·75626-75631
·
IF 3.289
Jinbao Liu,Yilin Liu,Yani Ai,Hongyan Chen,Chenqi Feng,Ningbo Yu,Ning Fu,Sheng Han,Hualin Lin
Two-dimensional MoS2 nanoplates within N-doped carbon from polyaniline (PANI) were fabricated by a simple hydrothermal method. During this process, PANI facilitated the absorption of inorganic precursors and provided confined spaces for the growth of MoS3 nanoparticles in the case of the unwanted aggregations. The unique nanostructure and composition of the nanoplates achieved high capacity. When CNFs@NC/MoS2 was used as an anode in lithium-ion batteries, it maintained an ultrahigh capacity of 900.9 mA h g−1 at a current density of 200 mA g−1 for 80 cycles. Even when the current density returned to 100 mA g−1 after cycling at different rates, a capacity of 998 mA h g−1 was still achieved.
✓ 已验证
产品关联
DOI
高影响因子
Journal of the Taiwan Institute of Chemical Engineers
·
2024
·
IF 5.5
Xiaoning Zhang,Buning Chen,Jianwei Wang,Yusheng Zhou,Xueli Huang,He Huang
Background Molybdenum disulfide is one of the main catalysts used in slurry-bed reactors. However, monolayer molybdenum disulfide with high hydrogenation activity is extremely difficult to obtain owing to the van der Waals forces between layers. Methods MoTi-X catalysts with different MoS 2 loadings were synthesized using a hydrothermal method. Changes in the active phase of MoTi-X during hydrogenation were also analyzed by TEM, XPS, and Raman spectroscopy. Significant findings MoTi-X catalysts synthesized by a two-step hydrothermal process allowed for the simultaneous generation of monolayer MoS 2 and hydrogenation. The results of the phenanthrene-phenol co-hydrogenation system showed that the different active sites on MoS 2 were responsible for its Hydrogenation and Hydrodeoxygenation properties. Using MoTi-X to catalyze coal tar (CT) hydrogenation, the total content of gasoline and diesel fractions was increased by 11.3 %, which is 3.3 times more effective than industrial four-stage hydrogenation. The average molecular mass, viscosity, and density of the coal tar were reduced by 35 %, 96 %, and 6 %, respectively. The application of MoTi-X catalysts for CT hydrogenation can fill the gap in the research on CT slurry-bed hydrogenation catalysts and improve the competitiveness of enterprises.
✓ 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）