Title :
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
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;
Conference_Titel :
Management Science and Industrial Engineering (MSIE), 2011 International Conference on
Conference_Location :
Harbin
Print_ISBN :
978-1-4244-8383-9
DOI :
10.1109/MSIE.2011.5707604
