Similar Publications

P-band center modulated and heterostructure stabilized 1T-MoS as bidirectional electrocatalyst for Lithium-Sulfur batteries.

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.

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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.

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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.

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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.

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A dual-mode biosensor for microRNA detection based on DNA tetrahedron-gated nanochannels.

Mikrochim 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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