Here we report a promising microwave-assisted strategy for the synthesis of narrow molybdenum disulfide nanosheets with edge-terminated structure and a significantly expanded interlayer spacing, which exhibit striking kinetic metrics with onset potential of -103 mV, Tafel slope of 49 mV per decade and exchange current density of …

Layered molybdenum disulfide has demonstrated great promise as a low-cost alternative to platinum-based catalysts for electrochemical hydrogen production from …

Simultaneously, the long-term stability of MoS 2 -RS was evidenced by durability tests. Such excellent electrochemical and separation performances make the MoS 2 with rich …

MoS2-edge. Because the rate of reaction is directly proportional to the number of edge sites for all samples, regardless of particle size, we conclude that the edge site is indeed the active site ( 24). Bearing this in mind, we note in Fig. 3A that the exchange current densities of the samples sintered at 550°C are significantly lower than

The reduction mechanism and behaviors of HAuCl 4 on the surface of edge-rich molybdenum disulfide (ER-MoS 2) was explored based on atomic force microscopy (AFM) in this work. ER-MoS 2 was prepared through a simple thermal modification process. It was found that edges on MoS 2 could enhance the reduction ability of HAuCl 4.There …

Here, we report that the catalytic performance of molybdenum disulfide (MoS 2), a member of TMDCs, can be significantly improved by using an appropriate dopant. Our electrochemical results indicate that 5% niobium (Nb)-doped vertically aligned MoS 2 in ionic liquid exhibits 1 order of magnitude higher CO formation turnover frequency (TOF) than ...

Abstract. The catalytic and magnetic properties of molybdenum disulfide (MoS 2) are significantly enhanced by the presence of edge sites. One way to obtain a high density of …

Nanoscale imaging reveals a blue-shifted exciton emission of the monolayer edge compared to the isolated MoS 2 monolayers due to built-in local strain and disorder. We further report on an ultrasensitive …

The electronic structures and transition properties of three types of triangle MoS 2 clusters, A (Mo edge passivated with two S atoms), B (Mo edge passivated with one S atom), and C (S edge) have been explored using quantum chemistry methods. The highest occupied molecular orbital (HOMO)-lowest unoccupied molecular orbital (LUMO) …

Here we report a promising microwave-assisted strategy for the synthesis of narrow molybdenum disulfide nanosheets with edge-terminated structure and a significantly expanded interlayer spacing, which exhibit striking kinetic metrics with onset potential of -103 mV, Tafel slope of 49 mV per decade and exchange current density of …

Edge-specific decoration of 2D materials with metallic NPs was already demonstrated 57, ... Wu, J. B. et al. Monolayer molybdenum disulfide nanoribbons with high optical anisotropy. Adv. Opt.

May 1, 2014. Berkeley Lab researchers have recorded the first observations of a strong nonlinear optical resonance along the edges of single layers of molybdenum disulfide that could be key to the use of this and similar 2D semiconductors in future nanoelectronic devices. A new SHG imaging technique allows rapid and all-optical determination of ...

Molybdenum disulfide is a kind of inorganic. The chemical formula is MoS2, which is the main component of molybdenite. It is black solid powder with a metallic luster. The melting point is 2375℃, density is 4.80g/cm³ (14℃), and Mohs hardness is 1.0 ~ 1.5. Molybdenum disulfide begins to decompose at 1370℃ and decomposes to …

Here we demonstrate the epitaxial growth of 2 inch (~50 mm) monolayer molybdenum disulfide (MoS 2) single crystals on a C-plane sapphire. We designed the miscut orientation towards the A axis (C/A ...

Scanning transmission electron microscopy analysis and first principle modelling reveal that the molybdenum-terminated edges of …

Binding geometry of four Li atoms on d) MoS2 base and e) Mo edge. f) Calculated binding energy per Li atom on the basal plane and S edge of MoS2 (001) monolayer with increasing concentration of Li.

Molybdenum disulfide (MoS 2) is a promising nonprecious catalyst for the hydrogen evolution reaction (HER) that has been extensively studied due to its excellent performance, but the lack of understanding of …

Molybdenum sulfide, an earth abundant metal dichalcogenide, is considered a promising alternative. 1–3 Various molybdenum sulfide materials with different composition …

Nanoscale imaging reveals a blue-shifted exciton emission of the monolayer edge compared to the triangular MoS 2 monolayers due to built-in local strain and disorder. We further report on an ultrasensitive photodetector made of a single MoS 2 nanoribbon with a responsivity of 8.72×10 2 A/W at 532 nm, among the highest reported up-to-date for ...

Herein, we report a highly durable edge-rich molybdenum disulfide (MoS 2) catalyst for CO 2 hydrogenation to formate at 200 °C, which delivers a high selectivity of …

The reduction mechanism and behaviors of HAuCl 4 on the surface of edge-rich molybdenum disulfide (ER-MoS 2) was explored based on atomic force microscopy (AFM) in this work.ER-MoS 2 was prepared through a simple thermal modification process. It was found that edges on MoS 2 could enhance the reduction ability of HAuCl 4.There …

Herein, we prepared molybdenum disulfide (MoS2) adhered hollow nanoframes of Co-Fe Prussian blue analog (Etched-PBA-MoS2) by mild chemical etching of Co-Fe Prussian blue analog (PBA) nanocubes ...

@article{Li2019EdgeExposedMD, title={Edge‐Exposed Molybdenum Disulfide with N‐Doped Carbon Hybridization: A Hierarchical Hollow Electrocatalyst for Carbon Dioxide Reduction}, author={Haoyi Li and Xiaozhi Liu and Shuangming Chen and Deren Yang and Qi Zhang and Li Song and Hai Xiao and Qinghua Zhang and Lin Gu …

Here we report the uniform nucleation (>99%) of bilayer molybdenum disulfide (MoS 2) on c -plane sapphire. In particular, we engineer the atomic terrace …

For instance, it has been widely believed that the edge sites of molybdenum disulfide (MoS 2) are catalytically active and the exchange current density is linearly dependent on the number of edge sites, 4 but recent studies have suggested that the electrical conductivity of the materials also plays an important role in the exchange current ...

The identification of the active sites in heterogeneous catalysis requires a combination of surface sensitive methods and reactivity studies. We determined the active site for hydrogen evolution, a reaction catalyzed by precious metals, on nanoparticulate molybdenum disulfide (MoS 2) by atomically resolving the surface of this catalyst …

Edge-Exposed Molybdenum Disulfide with N-Doped Carbon Hybridization: A Hierarchical Hollow Electrocatalyst for Carbon Dioxide Reduction. Haoyi Li, ... Based on the guidelines, a hierarchical hollow electrocatalyst comprised of edge-exposed 2H MoS 2 hybridized with NC for CO 2 RR is constructed.

The catalytic and magnetic properties of molybdenum disulfide (MoS2) are significantly enhanced by the presence of edge sites. One way to obtain a high density of edge sites in a two-dimensional (2D) film is by introducing porosity. However, the large-scale bottom-up synthesis of a porous 2D MoS2 film remains challenging and the correlation of growth …

The performance of the MoS 2 catalyst is further improved by designing an atomic edge ... López-Urías, F., Terrones, M. & Terrones, H. Metallic and ferromagnetic edges in molybdenum disulfide ...

Helium plasma etched MoS2 layers for edge contacts. Current on/off ratio and other performance metrics are measured and compared as the FETs evolve from back-gated, to top-gated and finally, to ...