2019年12月5日 · Here, we show that tip-enhanced Raman spectroscopy (TERS) can obtain distinctly different Raman features of edge defects in atomically thin MoS 2, which allows us to probe their unique...

2012年10月7日 · The surface structure of MoS2 is now engineered to preferentially expose edge sites by successfully synthesizing contiguous large-area thin films of a highly ordered double-gyroid MoS2 ...

2022年12月19日 · Models for calculating edge formation energies, experimental details on the growth and characterization of MoS 2, predicted equilibrium shapes of MoS 2 under various conditions, models for exploring the growth behaviors of most stable MoS 2 edges and the free energy change profiles during the nucleation and propagation processes during growth ...

2012年2月10日 · Here, we report a molecule that mimics the structure of the proposed triangular active edge site fragments of molybdenum disulfide (MoS 2), a widely used industrial catalyst that has shown promise as a low-cost alternative to platinum for electrocatalytic hydrogen production.

2016年10月4日 · Our results show that lattice strain imposed on a nanowire causes the energy of the edge states to oscillate periodically along its length in phase with the period of the substrate topographical...

2019年11月6日 · The activity and accessibility of MoS 2 edge sites are critical to deliver high hydrogen evolution reaction (HER) efficiency. Here, a porous carbon network confining ultrasmall N-doped MoS 2 nanocrystals (N-MoS 2 /CN) is fabricated by a self-templating strategy, which realizes synergistically structural and electronic modulations of MoS 2 edges.

2016年11月29日 · MoS 2 presents a promising low-cost catalyst for the hydrogen evolution reaction (HER), but the understanding about its active sites has remained limited. Here we present an unambiguous study of the catalytic activities of all possible reaction sites of MoS 2, including edge sites, sulfur vacancies, and grain boundaries.

2024年1月15日 · Characterization results indicated that Ni or Co atoms could be successfully doped into the edge-site of MoS 2, which generated more S-vacancy at Mo-edge site and enhanced sulfur-resistant CO methanation activity. The roles of Ni and Co doping in improving activity were explored based on DFT calculation.

2014年5月2日 · We observed one-dimensional nonlinear optical edge states of a single atomic membrane of molybdenum disulfide (MoS 2), a transition metal dichalcogenide.

2022年8月15日 · Mn doped defect-rich MoS 2-x was fabricated by a one-step hydrothermal method. Boosted activity for photocatalytic N 2 fixation was achieved. The creation of active sites on semiconductor catalysts for the adsorption of N 2 and dissociation of nonpolar N≡N bond is a key issue for photocatalytic N 2 reduction reaction (PNRR).

2017年4月28日 · Here we report a systematic investigation of the energetics of the experimentally most important MoS 2 heterophase interfaces and edges. The stable interface and edge structures change with chemical potential (these edges/interfaces are usually non-stoichiometric).

2021年9月12日 · Fluorine atoms with large electronegativity are doped on the MoS 2 edge sites that lead to a fivefold activity enhancement compared to that from pristine edges and is attributed to the more moderate binding energy for hydrogen species.

2019年10月30日 · Here we adopt a top-down approach based on focus ion beam in order to selectively pattern the exposed edge sites. This strategy allows us to select either the armchair (AC) or the zig-zag (ZZ)...

2024年10月31日 · Edge-induced selective etching of bilayer MoS 2 kirigami structures via a space-confined method†. Weijie Ma‡ ab, Qing Zhang‡ abd, Jie Zhu ab, Yang Guo ab, Yajing Sun abf, Lin Li ce and Dechao Geng * abef a Key Laboratory of Organic Integrated Circuit, Ministry of Education & Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin ...

The layered structure of MoS2 offers vast surface area and good exposure to active edge sites, thereby, making it a prominent candidate for lithium-ion batteries (LIBs), supercapacitors (SCs),...

2021年12月9日 · A two-dimensional MoS2 catalyst uses edge sites for catalytic activity while its basal plane remains inert in heterogeneous catalysis. To significantly boost the intrinsic activity of MoS2, a metal...

2021年8月1日 · Obviously, edge passivation can greatly affect the properties of MoS 2 nanoribbons. This may lead to new possibilities for fabricating novel MoS 2 - based electronic devices. In this study, we investigate the role of edge passivation in tuning electronic properties of armchair MoS2 nanoribbons using density functional theory (DFT).

2019年9月26日 · MoS2 edges exhibit good hydrogen evolution reaction (HER) activity but poor oxygen evolution reaction (OER) activity. The development of MoS2 edge supported single-atom catalysts (SACs) for both the HER and OER is critical for overall water splitting.

1 天前 · Molybdenum disulfide (MoS2) has emerged as a promising material in the search for sustainable energy solutions due to its exceptional properties. This article comprehensively explores the potential of MoS2 in energy-related applications, focusing on its structure, synthesis methods, and engineering strategies. The unique structural features of MoS2, such as its monolayer and hierarchical ...

2018年6月7日 · In this study, we use scanning tunneling microscopy to directly visualize and quantify how reducing conditions transforms both cluster shapes and edge terminations in MoS 2 and promoted...