Molybdenum Disulfide (MoS2)

Model : 55X-MOS2

DESCRIPTION-
The crystal structure of molybdenum disulfide (MoS2) takes the form of a hexagonal plane of S atoms on either side of a hexagonal plane of Mo atoms. These triple planes stack on top of each other, with strong covalent bonds between the Mo and S atoms, but weak van der Waals forces holding layers together. This allows them to be mechanically separated to form 2-dimensional sheets of MoS2, contributing to the distinctive molybdenum disulfide properties.

The 2H molybdenum disulfide (MoS2), as a stable hexagonal phase, has been one of the most studied transition metal dichalcogenides over the past decades. In the last five years, the metastable phases of MoS2 (1T, 1T', 1T'', and 1T''') have seen a revival of interest. Different from the edge-sharing [MoS6] trigonal prisms in the 2H MoS2 phase, these metastable phases are composed of the edge-sharing [MoS6] octahedra, in which the neighboring Mo-Mo distances differ. Due to the various crystal structures and different electronic configurations of the building [MoS6] motifs, these metastable polytypes are endowed with intriguing physical properties and potential applications in diverse fields. In this Review, the recent research progress on metastable MoS2 is summarized, especially with an emphasis on the diverse synthetic approaches and the newly uncovered physical properties. The phase structures and electronic band structures are also outlined. In the end, a perspective of the future investigation on metastable MoS2 is discussed.

Features  - 

• Hexagonal crystal structure

• Strong Mo–S covalent bonds

• Weak van der Waals forces between layers

• 2D layered structure

• Stable 2H phase and metastable phases

Specifications:

• Product Type: Molybdenum Disulfide (MoS?) Structure Model

• Crystal Structure: Hexagonal

• Primary Phase: 2H-MoS?

• Layer Structure: S-Mo-S Triple Layers

• Bonding: Strong Mo-S Covalent Bonds

• Interlayer Forces: Weak Van der Waals Forces

• Other Phases: 1T, 1T′, 1T″ and 1T?

• Application: Study of Crystal Structures and Physical Properties

Frequently Asked Questions

1. What is molybdenum disulfide (MoS?)?

Molybdenum disulfide (MoS?) is a layered material consisting of molybdenum and sulfur atoms arranged in hexagonal planes. Its layered crystal structure gives it distinctive physical and electronic properties.

2. What are the main molybdenum disulfide properties?

Key molybdenum disulfide properties include a hexagonal crystal structure, strong Mo–S covalent bonds, weak van der Waals forces between layers, and the ability to form two-dimensional sheets.

3. What is the crystal structure of MoS??

MoS? has a hexagonal layered crystal structure. In the stable 2H phase, a hexagonal plane of Mo atoms is positioned between two hexagonal planes of S atoms, forming stacked triple layers.

4. What are the different phases of molybdenum disulfide?

The stable 2H phase is the most extensively studied phase of MoS?. Metastable phases such as 1T, 1T′, 1T″, and 1T? have different crystal structures and electronic configurations.

5. Why can MoS? form two-dimensional sheets?

The Mo and S atoms within each layer are held together by strong covalent bonds, while the layers are held together by relatively weak van der Waals forces. This allows MoS? layers to be mechanically separated into two-dimensional sheets.