Molybdenum disulfide (MoS) with a two-dimensional layered structure can effectively inhibit the shuttle effect of lithium-sulfur batteries (Li-S batteries). It contains metal-sulfur bonds and combines with polysulfides through electrostatic bonds or chemical bonds. In this paper, the structure and properties of MoS are briefly introduced, and the research progress on the design, preparation, structure and properties of MoS as a cathode material for Li-S batteries in recent years is reviewed. The effects of MoS structure and its composition with carbon materials or metallic oxides on the performance of the electrode materials are analyzed. Finally, the existing problems and possible future research directions are pointed out.
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http://dx.doi.org/10.1039/c9ra09769d | DOI Listing |
J Colloid Interface Sci
January 2025
School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China. Electronic address:
Lithium-sulfur batteries (LSBs) are considered as the most potential next-generation rechargeable energy storage devices due to their high theoretical energy density. However, the commercialization is severely hampered by the shuttle effect and sluggish sulfur redox kinetics of sulfur cathodes. Herein, we propose MoS/CN heterostructures as potential cathodes for LSBs.
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
School of Chemical Engineering, Changchun University of Technology, Changchun 130012, China.
In this study, the dispersion behavior of MoS₂ in ionic liquids (ILs) with varying alkyl chain lengths was the primary focus of investigation, followed by the design of a novel PAM/SMA/CMC/PDA@MoS hydrogel. By optimizing the concentrations of CMC and PDA@MoS, a bifunctional hydrogel with both sensing and catalytic functions was successfully developed. Mechanical tests revealed that the PAM/SMA/CMC/0.
View Article and Find Full Text PDFNanoscale Adv
January 2025
Microelectronics Research Unit, Faculty of Information Technology and Electrical Engineering, University of Oulu PO Box 4500 90014 Finland
In this study, we show that on-chip grown, vertically aligned MoS films that are decorated with Ni(OH) catalyst are suitable materials to be applied as working electrodes in electrochemical sensing. The constructed sensors display a highly repeatable response to dopamine, used as a model analyte, in a large dynamic range from 1 μM to 1 mM with a theoretical detection limit of 0.1 μM.
View Article and Find Full Text PDFACS Nano
January 2025
College of Optical and Electronic Technology, China Jiliang University, 310018 Hangzhou, China.
Van der Waals (vdW) contact has been widely regarded as one of the most potential strategies for exploiting low-resistance metal-semiconductor junctions (MSJs) based on atomically thin transition-metal dichalcogenides (TMDs), but this method is still not efficient due to weak metal-TMD interfacial interactions. Therefore, an understanding of interfacial interactions between metals and TMDs is essential for achieving low-resistance contacts with weak Fermi level pinning (FLP). Herein, we report how the interfacial interactions between metals and TMDs affect the electrical contacts by considering more than 90 MSJs consisting of a semiconducting TMD channel and different types of metal electrodes, including bulk metals, MXenes, and metallic TMDs.
View Article and Find Full Text PDFMikrochim Acta
January 2025
Key Laboratory of Synthetic and Natural Functional Molecule, College of Chemistry and Materials Science, Northwest University, Xi'an, 710127, People's Republic of China.
A biosensor based on solid-state nanochannels of anodic aluminum oxide (AAO) membrane for both electrochemical and naked-eye detection of microRNA-31 (MiR-31) is proposed. For this purpose, MoS nanosheets, which possess different adsorption capabilities to single-stranded and double-stranded nucleic acids, are deposited onto the top surface of the AAO membrane. Moreover, multi-functional DNA nanostructure have been designed by linking a G-rich sequence for folding to a G-quadruplex at three vertices and a complementary sequence of MiR-31 at the other one vertex of a DNA tetrahedron.
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