Sonochemical preparation and characterization of MoO3 and MoS2 nanoparticles

Author

Bin, Li ; Daheng, Yang ; Jiuju, Chen ; Xiaolei, Yang ; Qinggang, Meng

Author_Institution

Electron. Eng., Heilongjiang Inst. of Technol., Harbin, China

fYear

2011

fDate

8-11 Jan. 2011

Firstpage

1083

Lastpage

1086

Abstract

The effect of ultrasound irradiation on MoO₃ and MoS₂ nanoparticles is investigated. Under ultrasonic irradiation, spherical-like MoO₃ nanoparticles are obtained, while bulk-like MoO₃ nanoparticles were prepared without ultrasonic irradiation. The changes in the physicochemical properties of MoO₃ are investigated by X-ray power diffraction (XRD), field emission scanning electron microscopy (FE-SEM) and ultraviolet and visible spectroscopy (UV-vis). Then MoS₂ nanoparticles are synthesized by the reaction of sulfur powder (S) and ultrasonically prepared spherical-like MoO₃ nanoparticles in a hydrogen atmosphere at a heating temperature of 620°C. Tribological experiments emphasize the important role played by these MoS₂ nanoparticles in providing excellent lubricating performance.

Keywords

X-ray diffraction; field emission electron microscopy; lubrication; molybdenum compounds; nanofabrication; nanoparticles; scanning electron microscopy; ultrasonic effects; ultraviolet spectra; visible spectra; FE-SEM; MoO₃; MoS₂; X-ray power diffraction; XRD; field emission scanning electron microscopy; heating; lubrication; nanoparticles; physicochemical properties; sonochemical preparation; tribology; ultrasonic irradiation; ultrasound irradiation; ultraviolet spectroscopy; visible spectroscopy; Acoustics; Friction; Nanoparticles; Petroleum; Powders; Radiation effects; Ultrasonic imaging; MoO3; MoS2; nanoparticles; ultrasonic;

fLanguage

English

Publisher

ieee

Conference_Titel

Management Science and Industrial Engineering (MSIE), 2011 International Conference on

Conference_Location

Harbin

Print_ISBN

978-1-4244-8383-9

Type

conf

DOI

10.1109/MSIE.2011.5707604

Filename

5707604