Electron microscopy study of the carbon-induced 2H–3R–1T phase transition of MoS₂

Abstract

Phase transition of molybdenum disulfide (MoS2) was carried out in a pure monocrystal using a combination milling and heating process.

Electronic states and metallic character of carbide Co/MoS2 catalytic interface

“…phases, possibly what is well known as (α)β-MoS2 phase [27]. In table 3, we listed all fractional coordinates for Mo ions, having no replacement by any foreign atoms and MoS2 phase is label from 1 to 6.…”

Recent Progress in Phase Regulation, Functionalization, and Biosensing Applications of Polyphase MoS2

“…[84] Macchione et al used single crystal 2H-MoS 2 as raw material and created 3R-MoS 2 through a series of exfoliation, ball milling, and low temperature calcination processes to promote the transformation of MoS 2 . [85] The practical application of this method is limited by the fact that the phase composition of the product cannot be controlled reliably.…”

3R-MoS2 in Review: History, Status, and Outlook

“…Kumar et al prepared similar samples by the Scotch tape method and investigated the effect of heating temperature and rate on the material. Other mechanical methods, such as grinding, have been used to induce regions of 3R-MoS 2 in a 2H-MoS 2 crystal. , For instance, Macchione et al created 3R-MoS 2 domains by ball milling a single crystal of 2H-MoS 2 . Practical applications of these methods are limited as the phase composition of the product cannot be controlled reliably.…”

“…The polytype of few-layered MoS 2 is easily discerned using HR-TEM by analyzing the distinctive phase patterns along the c -axis (Figure ). ,,− Often a gray-value trace is measured (and sometimes compared to simulated data) to differentiate Mo from S and can also give an indication of atom depth within the unit cell, from which the polytype can be determined . Using this approach, Shiojiri et al investigated the formation of natural and synthetic 3R-MoS 2 by analyzing stacking faults.…”