Low‐Temperature Atmospheric Pressure Plasma‐Enhanced CVD of Nanocomposite Coatings “Molybdenum Disulfide (Filler)–Silicon Oxide (Matrix)”

Abstract

The possibility of practical realization of a two‐stage chemical vapor deposition (CVD) process using as an example of nanocomposite coating “molybdenum disulfide (filler)–silicon oxide (matrix)” is experimentally demonstrated for the first time. Deposition is performed in a two‐zone vertical tubular quartz reactor. The formation of molybdenum disulfide nanoparticles by spray pyrolysis is carried out in the upper zone, and the lower zone is used for deposition of nanocomposite coatings by atmospheric pressure plasma‐enhanced CVD. An aerosol of the ammonium thiomolybdate solution in dimethylformamide is used for the synthesis of molybdenum disulfide particles, and silicon dioxide coatings are deposited from tetraethoxysilane. The structure and the composition of nanocomposite coating deposited are studied using scanning electron microscopy (SEM), transmission electron microscopy (TEM), Raman, and Fourier transform infrared spectroscopy (FTIR) spectroscopy.

An overview of the recent advances in inorganic nanotubes

“…Extensive efforts have been paid in recent years to study the mechanical and tribological properties of IF/INT of WS 2 and MoS 2 . Few recent works were dedicated to the study of the tribological properties of IF-MoS 2 nanoparticles produced by laser ablation in solution; 133 plasma enhanced chemical vapor deposition (PECVD) 134 and microwave assisted synthesis. 135 Using laser ablation in solution resulted in IF nanoparticles with average size of 29 nm.…”

Theoretical aspects of the growth of a non-Kossel crystal from vapours: the role of advacancies

“…Here, 1 n s is the surface area of the single crystalline cell in the step. We note that eqn (7) is derived for the general case when both supersaturations of adatoms and advacancies are present. In this case (case 1), we treat x v ¼ 0, and thus the step rate of advancement depends only on the supersaturation in the gas phase (x a ) and interchange terms I a and I v :…”

“…We note that this equation does not consider the effect of advacancies. For this, we may use the approach from Section 3.1 and eqn (7), which considers vacancy supersaturation x v . As shown in ref.…”

“…[4][5][6] Many prospective optical crystals, superconductors and biomimetic materials are also multicomponent. [7][8][9][10] Much attention is also paid today to metal-organic-frameworks 11 (MOFs) and other types of frameworks 12 that are promising for storing hydrogen or methane for energy, 13 CO 2 capture, 14 catalysis or gas separation 15 and many other applications. 16 MOFs usually have a crystalline-like structure, and their growth can be treated as the growth of a very complex crystal with many features inherent to crystals, for example, screw dislocations (Fig.…”

Dynamic Interaction of Steps and Nanoislands during Growth of a Multicomponent Crystal

“…Perovskites, which contain several components in a crystal lattice, are used to manufacture new-generation solar cells. Much attention is paid to two-dimensional materials such as molybdenum disulfide (MoS 2 ) , and different optical crystals . In view of the obvious variety of all possible crystalline compounds, few of which are known and studied to date, the number of multicomponent crystals involved in technology will only grow.…”